cmd/go: TestTestCache failures

[gopherbot]

#!watchflakes
post <- pkg == "cmd/go" && test == "TestTestCache"

Issue created automatically to collect these failures.

Example (log):

vcs-test.golang.org rerouted to http://127.0.0.1:54187
https://vcs-test.golang.org rerouted to https://127.0.0.1:54188
go test proxy running at GOPROXY=http://127.0.0.1:54189/mod
panic: test timed out after 9m0s
running tests:
	TestTestCache (55s)

syscall.syscall(0x0?, 0xc000969a90?, 0xc00012b200?, 0x10c2a99?)
	/tmp/buildlet/go/src/runtime/sys_darwin.go:23 +0x7f fp=0xc000131538 sp=0xc0001314a8 pc=0x10bdb3f
syscall.closedir(0xc0001315a0?)
...
	/tmp/buildlet/go/src/runtime/panic.go:796 +0x88 fp=0xc000131c68 sp=0xc000131c58 pc=0x10884a8
runtime.Goexit()
	/tmp/buildlet/go/src/runtime/panic.go:540 +0x1bb fp=0xc000131ce8 sp=0xc000131c68 pc=0x1087a1b
testing.(*common).FailNow(0xc00031d6c0)
	/tmp/buildlet/go/src/testing/testing.go:979 +0x8a fp=0xc000131d40 sp=0xc000131ce8 pc=0x11ece2a
cmd/go_test.(*testgoData).run(0xc000340370, {0xc00022a420, 0x6, 0x6})
	/tmp/buildlet/go/src/cmd/go/go_test.go:516 +0x1be fp=0xc000131dd8 sp=0xc000131d40 pc=0x1a128fe
cmd/go_test.TestTestCache(0xc00031d6c0)
	/tmp/buildlet/go/src/cmd/go/go_test.go:2521 +0xc85 fp=0xc000131ea8 sp=0xc000131dd8 pc=0x1a2ac25
testing.tRunner(0xc00031d6c0, 0x1bd5448)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "cmd/go" && test == "TestTestCache"

2022-12-13 14:05 darwin-amd64-race go@61e2b8ec cmd/go.TestTestCache (log)

vcs-test.golang.org rerouted to http://127.0.0.1:54187
https://vcs-test.golang.org rerouted to https://127.0.0.1:54188
go test proxy running at GOPROXY=http://127.0.0.1:54189/mod
panic: test timed out after 9m0s
running tests:
	TestTestCache (55s)

syscall.syscall(0x0?, 0xc000969a90?, 0xc00012b200?, 0x10c2a99?)
	/tmp/buildlet/go/src/runtime/sys_darwin.go:23 +0x7f fp=0xc000131538 sp=0xc0001314a8 pc=0x10bdb3f
syscall.closedir(0xc0001315a0?)
...
	/tmp/buildlet/go/src/runtime/panic.go:796 +0x88 fp=0xc000131c68 sp=0xc000131c58 pc=0x10884a8
runtime.Goexit()
	/tmp/buildlet/go/src/runtime/panic.go:540 +0x1bb fp=0xc000131ce8 sp=0xc000131c68 pc=0x1087a1b
testing.(*common).FailNow(0xc00031d6c0)
	/tmp/buildlet/go/src/testing/testing.go:979 +0x8a fp=0xc000131d40 sp=0xc000131ce8 pc=0x11ece2a
cmd/go_test.(*testgoData).run(0xc000340370, {0xc00022a420, 0x6, 0x6})
	/tmp/buildlet/go/src/cmd/go/go_test.go:516 +0x1be fp=0xc000131dd8 sp=0xc000131d40 pc=0x1a128fe
cmd/go_test.TestTestCache(0xc00031d6c0)
	/tmp/buildlet/go/src/cmd/go/go_test.go:2521 +0xc85 fp=0xc000131ea8 sp=0xc000131dd8 pc=0x1a2ac25
testing.tRunner(0xc00031d6c0, 0x1bd5448)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "cmd/go" && test == "TestTestCache"

2023-01-18 19:33 darwin-amd64-race go@6fcbd036 cmd/go.TestTestCache (log)

vcs-test.golang.org rerouted to http://127.0.0.1:54235
https://vcs-test.golang.org rerouted to https://127.0.0.1:54236
go test proxy running at GOPROXY=http://127.0.0.1:54237/mod
--- FAIL: TestTestCache (26.13s)
    go_test.go:2482: 

        INITIAL


    go_test.go:2490: running testgo [test -x -v -short t/...]
...
        r14    0xdfffffffffffffff
        r15    0x3606f00
        rip    0x101ce15
        rflags 0x10217
        cs     0x2b
        fs     0x0
        gs     0x0

    go_test.go:2490: go [test -x -v -short t/...] failed unexpectedly in /tmp/buildlet/go/src/cmd/go: exit status 2
2023/01/18 12:26:09 unexpected files left in tmpdir: [go-build3693440671]

— watchflakes