x/tools/internal/gcimporter: TestIExportData_stdlib failures [consistent failure]

[gopherbot]

#!watchflakes
default <- pkg == "golang.org/x/tools/internal/gcimporter" && test == "TestIExportData_stdlib"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (1.40s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/tools/internal/gcimporter" && test == "TestIExportData_stdlib"

2026-05-21 17:14 x_tools-gotip-darwin-arm64-longtest tools@3ee46f58 go@1bcea1df x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (1.40s)

2026-05-21 17:14 x_tools-gotip-linux-386-longtest tools@3ee46f58 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.81s)

2026-05-21 17:14 x_tools-gotip-linux-amd64-longtest tools@3ee46f58 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.11s)

2026-05-21 17:14 x_tools-gotip-linux-arm64-longtest tools@3ee46f58 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (2.62s)

2026-05-21 17:14 x_tools-gotip-windows-amd64-longtest tools@3ee46f58 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (4.71s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/tools/internal/gcimporter" && test == "TestIExportData_stdlib"

2026-05-21 17:14 x_tools-gotip-darwin-amd64-longtest tools@3ee46f58 go@e0a86169 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (7.57s)

2026-05-21 17:14 x_tools-gotip-darwin-arm64-longtest tools@3ee46f58 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (1.39s)

2026-05-21 20:13 x_tools-gotip-darwin-arm64-longtest tools@a30b1c37 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (2.06s)

2026-05-21 20:13 x_tools-gotip-linux-386-longtest tools@a30b1c37 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.86s)

2026-05-21 20:13 x_tools-gotip-linux-amd64-longtest tools@a30b1c37 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.11s)

2026-05-21 20:13 x_tools-gotip-linux-arm64-longtest tools@a30b1c37 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (2.63s)

2026-05-21 20:13 x_tools-gotip-windows-amd64-longtest tools@a30b1c37 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (4.44s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/tools/internal/gcimporter" && test == "TestIExportData_stdlib"

2026-05-21 23:24 x_tools-gotip-darwin-arm64-longtest tools@ea004d01 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (1.20s)

2026-05-21 23:24 x_tools-gotip-linux-386-longtest tools@ea004d01 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.82s)

2026-05-21 23:24 x_tools-gotip-linux-amd64-longtest tools@ea004d01 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.19s)

2026-05-21 23:24 x_tools-gotip-linux-arm64-longtest tools@ea004d01 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (2.66s)

2026-05-21 23:24 x_tools-gotip-windows-amd64-longtest tools@ea004d01 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (5.02s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/tools/internal/gcimporter" && test == "TestIExportData_stdlib"

2026-05-22 14:22 x_tools-gotip-darwin-amd64-longtest tools@81473aa3 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (4.50s)

2026-05-22 14:22 x_tools-gotip-darwin-arm64-longtest tools@81473aa3 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (1.16s)

2026-05-22 14:22 x_tools-gotip-linux-386-longtest tools@81473aa3 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.92s)

2026-05-22 14:22 x_tools-gotip-linux-amd64-longtest tools@81473aa3 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.28s)

2026-05-22 14:22 x_tools-gotip-linux-arm64-longtest tools@81473aa3 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (2.70s)

2026-05-22 14:22 x_tools-gotip-windows-amd64-longtest tools@81473aa3 go@e4283592 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (4.81s)

— watchflakes

[mrkfrmn]

These look identical, perhaps the test is being overly strict?:

got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand

Will take a look at this.

[mrkfrmn]

It seems the error message is a bit less descriptive than it could be:

iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: func (*math/rand/v2.Rand).N[Int math/rand/v2.intType](n Int) Int vs func (*math/rand/v2.Rand).N(n <nil>) <nil>

This is likely a follow-on from:

iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/tools/internal/gcimporter" && test == "TestIExportData_stdlib"

2026-05-22 14:22 x_tools-gotip-darwin-amd64-longtest tools@81473aa3 go@cc623858 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (4.52s)

2026-05-22 14:22 x_tools-gotip-darwin-arm64-longtest tools@81473aa3 go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (1.20s)

2026-05-22 14:22 x_tools-gotip-linux-386-longtest tools@81473aa3 go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.60s)

2026-05-22 14:22 x_tools-gotip-linux-amd64-longtest tools@81473aa3 go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.27s)

2026-05-22 14:22 x_tools-gotip-linux-arm64-longtest tools@81473aa3 go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (2.91s)

2026-05-22 14:22 x_tools-gotip-windows-amd64-longtest tools@81473aa3 go@cc623858 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (5.04s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/tools/internal/gcimporter" && test == "TestIExportData_stdlib"

2026-05-22 14:22 x_tools-gotip-darwin-amd64-longtest tools@81473aa3 go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (4.54s)

2026-05-22 14:22 x_tools-gotip-windows-amd64-longtest tools@81473aa3 go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (5.21s)

2026-05-22 17:12 x_tools-gotip-darwin-amd64-longtest tools@bab95adb go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (5.40s)

2026-05-22 17:12 x_tools-gotip-darwin-arm64-longtest tools@bab95adb go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (1.42s)

2026-05-22 17:12 x_tools-gotip-linux-386-longtest tools@bab95adb go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.76s)

2026-05-22 17:12 x_tools-gotip-linux-amd64-longtest tools@bab95adb go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:165: IImportData(math/rand/v2): internal error while importing "math/rand/v2" (malformed type parameter export name Int: missing prefix); please report an issue
    iexport_test.go:185: math/rand/v2.ChaCha8 not found, want type math/rand/v2.ChaCha8 struct{state internal/chacha8rand.State; readBuf [8]byte; readLen int}
    iexport_test.go:185: math/rand/v2.ExpFloat64 not found, want func math/rand/v2.ExpFloat64() float64
    iexport_test.go:185: math/rand/v2.Float32 not found, want func math/rand/v2.Float32() float32
    iexport_test.go:185: math/rand/v2.Float64 not found, want func math/rand/v2.Float64() float64
    iexport_test.go:185: math/rand/v2.Int not found, want func math/rand/v2.Int() int
    iexport_test.go:185: math/rand/v2.Int32 not found, want func math/rand/v2.Int32() int32
    iexport_test.go:185: math/rand/v2.Int32N not found, want func math/rand/v2.Int32N(n int32) int32
    iexport_test.go:185: math/rand/v2.Int64 not found, want func math/rand/v2.Int64() int64
...
    iexport_test.go:185: math/rand/v2.Shuffle not found, want func math/rand/v2.Shuffle(n int, swap func(i int, j int))
    iexport_test.go:185: math/rand/v2.Source not found, want type math/rand/v2.Source interface{Uint64() uint64}
    iexport_test.go:185: math/rand/v2.Uint not found, want func math/rand/v2.Uint() uint
    iexport_test.go:185: math/rand/v2.Uint32 not found, want func math/rand/v2.Uint32() uint32
    iexport_test.go:185: math/rand/v2.Uint32N not found, want func math/rand/v2.Uint32N(n uint32) uint32
    iexport_test.go:185: math/rand/v2.Uint64 not found, want func math/rand/v2.Uint64() uint64
    iexport_test.go:185: math/rand/v2.Uint64N not found, want func math/rand/v2.Uint64N(n uint64) uint64
    iexport_test.go:185: math/rand/v2.UintN not found, want func math/rand/v2.UintN(n uint) uint
    iexport_test.go:185: math/rand/v2.Zipf not found, want type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (2.98s)

2026-05-22 17:12 x_tools-gotip-linux-arm64-longtest tools@bab95adb go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (3.45s)

2026-05-22 17:12 x_tools-gotip-windows-amd64-longtest tools@bab95adb go@fc245b64 x/tools/internal/gcimporter.TestIExportData_stdlib (log)

=== RUN   TestIExportData_stdlib
    iexport_test.go:174: reexport "math/rand/v2": gcimporter: unexpected type: <nil>, <nil>
    iexport_test.go:197: math/rand/v2.New: results: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
        want: func math/rand/v2.New(src math/rand/v2.Source) *math/rand/v2.Rand
    iexport_test.go:197: math/rand/v2.NewZipf: parameters: tuple element 0: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
        want: func math/rand/v2.NewZipf(r *math/rand/v2.Rand, s float64, v float64, imax uint64) *math/rand/v2.Zipf
    iexport_test.go:197: math/rand/v2.Rand: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Rand struct{src math/rand/v2.Source}
        want: type math/rand/v2.Rand struct{src math/rand/v2.Source}
    iexport_test.go:197: math/rand/v2.Zipf: struct field r: pointer elements: unequal methods: math/rand/v2.Rand vs math/rand/v2.Rand
        got:  type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
        want: type math/rand/v2.Zipf struct{r *math/rand/v2.Rand; imax float64; v float64; q float64; s float64; oneminusQ float64; oneminusQinv float64; hxm float64; hx0minusHxm float64}
--- FAIL: TestIExportData_stdlib (5.05s)

— watchflakes