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cmd/vet: inconsistent import #16027

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OneOfOne opened this issue Jun 10, 2016 · 11 comments

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commented Jun 10, 2016

Please answer these questions before submitting your issue. Thanks!

  1. What version of Go are you using (go version)?
    go version devel +8042bfe 2016-06-10 01:00:09 +0000 linux/amd64
  2. What operating system and processor architecture are you using (go env)?
    Arch Linux 64bit
  3. What did you do?
    go vet ./...
  4. What did you expect to see?
➤ go16 vet ./...                                                                 2016-06-10T04:04:04+02:00
internal/seatgeek/seatgeek.go:170: Println call ends with newline
exit status 1
server/legacy.go:47: possible formatting directive in Println call
server/restore.go:36: possible formatting directive in Println call
exit status 1
  1. What did you see instead?
panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location
 [recovered]
    panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location


goroutine 1 [running]:
panic(0x660b20, 0xc4201cd020)
    /usr/src/go/src/runtime/panic.go:500 +0x1a1
go/types.(*Checker).handleBailout(0xc4200bc1c0, 0xc4200cf8e8)
    /usr/src/go/src/go/types/check.go:213 +0xae
panic(0x660b20, 0xc4201cd020)
    /usr/src/go/src/runtime/panic.go:458 +0x243
go/internal/gcimporter.(*importer).declare(0xc4200946c0, 0x7da1e0, 0xc42025ef00)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:173 +0x17c
go/internal/gcimporter.(*importer).obj(0xc4200946c0, 0xfffffffffffffffc)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:193 +0x1af
go/internal/gcimporter.BImportData(0xc4200170b0, 0xc420214000, 0x3a22f, 0x3fe00, 0xc4201601b1, 0x4, 0x0, 0x4, 0xc4201b9dd0, 0xc4200cf0c8)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:86 +0x34c
go/internal/gcimporter.Import(0xc4200170b0, 0xc4201601b1, 0x4, 0x7ffc97115262, 0x11, 0xc42019e460, 0x0, 0x0)
    /usr/src/go/src/go/internal/gcimporter/gcimporter.go:166 +0x551
go/importer.gcimports.ImportFrom(0xc4200170b0, 0xc4201601b1, 0x4, 0x7ffc97115262, 0x11, 0x0, 0x1, 0x2, 0x0)
    /usr/src/go/src/go/importer/importer.go:70 +0x67
go/types.(*Checker).collectObjects(0xc4200bc1c0)
    /usr/src/go/src/go/types/resolver.go:191 +0x81d
go/types.(*Checker).checkFiles(0xc4200bc1c0, 0xc420190a80, 0x6, 0x8, 0x0, 0x0)
    /usr/src/go/src/go/types/check.go:225 +0xaa
go/types.(*Checker).Files(0xc4200bc1c0, 0xc420190a80, 0x6, 0x8, 0xc42018f440, 0xc4200cf960)
    /usr/src/go/src/go/types/check.go:218 +0x49
go/types.(*Config).Check(0xc420191b80, 0xc42000f970, 0x8, 0xc420019a00, 0xc420190a80, 0x6, 0x8, 0xc420189950, 0x7f800fd19000, 0x0, ...)
    /usr/src/go/src/go/types/api.go:344 +0x19f
main.(*Package).check(0xc420012a20, 0xc420019a00, 0xc420190a80, 0x6, 0x8, 0x0, 0xc4200a9480)
    /usr/src/go/src/cmd/vet/types.go:76 +0x36c
main.doPackage(0x6b905c, 0x1, 0xc42000a0f0, 0x6, 0x6, 0x0)
    /usr/src/go/src/cmd/vet/main.go:333 +0x992
main.main()
    /usr/src/go/src/cmd/vet/main.go:241 +0x335
exit status 2
panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location
 [recovered]
    panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location


goroutine 1 [running]:
panic(0x660b20, 0xc4203025f0)
    /usr/src/go/src/runtime/panic.go:500 +0x1a1
go/types.(*Checker).handleBailout(0xc4200a81c0, 0xc4202478d8)
    /usr/src/go/src/go/types/check.go:213 +0xae
panic(0x660b20, 0xc4203025f0)
    /usr/src/go/src/runtime/panic.go:458 +0x243
go/internal/gcimporter.(*importer).declare(0xc420080600, 0x7da1e0, 0xc4203093b0)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:173 +0x17c
go/internal/gcimporter.(*importer).obj(0xc420080600, 0xfffffffffffffffc)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:193 +0x1af
go/internal/gcimporter.BImportData(0xc4200170b0, 0xc4202b8000, 0x3a22f, 0x3fe00, 0xc42014c927, 0x4, 0x0, 0x4, 0xc42026c0f0, 0xc4202470b8)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:86 +0x34c
go/internal/gcimporter.Import(0xc4200170b0, 0xc42014c927, 0x4, 0x7ffff9fc02be, 0xe, 0xc42018e0a0, 0x0, 0x0)
    /usr/src/go/src/go/internal/gcimporter/gcimporter.go:166 +0x551
go/importer.gcimports.ImportFrom(0xc4200170b0, 0xc42014c927, 0x4, 0x7ffff9fc02be, 0xe, 0x0, 0xc420151360, 0x0, 0x0)
    /usr/src/go/src/go/importer/importer.go:70 +0x67
go/types.(*Checker).collectObjects(0xc4200a81c0)
    /usr/src/go/src/go/types/resolver.go:191 +0x81d
go/types.(*Checker).checkFiles(0xc4200a81c0, 0xc420159680, 0x3, 0x4, 0x0, 0x0)
    /usr/src/go/src/go/types/check.go:225 +0xaa
go/types.(*Checker).Files(0xc4200a81c0, 0xc420159680, 0x3, 0x4, 0xc420156fc0, 0xc4200bb960)
    /usr/src/go/src/go/types/check.go:218 +0x49
go/types.(*Config).Check(0xc42015c8c0, 0xc42000f970, 0x5, 0xc42000ba80, 0xc420159680, 0x3, 0x4, 0xc420150d20, 0x7f447be22000, 0x0, ...)
    /usr/src/go/src/go/types/api.go:344 +0x19f
main.(*Package).check(0xc420012900, 0xc42000ba80, 0xc420159680, 0x3, 0x4, 0xc4201596a0, 0x2)
    /usr/src/go/src/cmd/vet/types.go:76 +0x36c
main.doPackage(0x6b905c, 0x1, 0xc42000a350, 0x3, 0x3, 0x0)
    /usr/src/go/src/cmd/vet/main.go:333 +0x992
main.main()
    /usr/src/go/src/cmd/vet/main.go:241 +0x335
exit status 2
internal/seatgeek/seatgeek.go:170: Println call ends with newline
exit status 1
panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location
 [recovered]
    panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location


goroutine 1 [running]:
panic(0x660b20, 0xc4203200c0)
    /usr/src/go/src/runtime/panic.go:500 +0x1a1
go/types.(*Checker).handleBailout(0xc4200a81c0, 0xc4202558d8)
    /usr/src/go/src/go/types/check.go:213 +0xae
panic(0x660b20, 0xc4203200c0)
    /usr/src/go/src/runtime/panic.go:458 +0x243
go/internal/gcimporter.(*importer).declare(0xc42007e6c0, 0x7da1e0, 0xc42031ec30)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:173 +0x17c
go/internal/gcimporter.(*importer).obj(0xc42007e6c0, 0xfffffffffffffffc)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:193 +0x1af
go/internal/gcimporter.BImportData(0xc4200150b0, 0xc4202d2000, 0x3a22f, 0x3fe00, 0xc420160097, 0x4, 0x0, 0x4, 0xc42027e840, 0xc4202550b8)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:86 +0x34c
go/internal/gcimporter.Import(0xc4200150b0, 0xc420160097, 0x4, 0x7ffca8d7b28d, 0x13, 0xc420193180, 0x0, 0x0)
    /usr/src/go/src/go/internal/gcimporter/gcimporter.go:166 +0x551
go/importer.gcimports.ImportFrom(0xc4200150b0, 0xc420160097, 0x4, 0x7ffca8d7b28d, 0x13, 0x0, 0xc42016a550, 0x0, 0x0)
    /usr/src/go/src/go/importer/importer.go:70 +0x67
go/types.(*Checker).collectObjects(0xc4200a81c0)
    /usr/src/go/src/go/types/resolver.go:191 +0x81d
go/types.(*Checker).checkFiles(0xc4200a81c0, 0xc42015f420, 0x4, 0x4, 0x0, 0x0)
    /usr/src/go/src/go/types/check.go:225 +0xaa
go/types.(*Checker).Files(0xc4200a81c0, 0xc42015f420, 0x4, 0x4, 0xc420166c60, 0xc4200bb960)
    /usr/src/go/src/go/types/check.go:218 +0x49
go/types.(*Config).Check(0xc420168bc0, 0xc42000f970, 0xa, 0xc420017a00, 0xc42015f420, 0x4, 0x4, 0xc42016a000, 0x7f2d3f794000, 0x0, ...)
    /usr/src/go/src/go/types/api.go:344 +0x19f
main.(*Package).check(0xc420012960, 0xc420017a00, 0xc42015f420, 0x4, 0x4, 0x0, 0xc420095600)
    /usr/src/go/src/cmd/vet/types.go:76 +0x36c
main.doPackage(0x6b905c, 0x1, 0xc42000a1a0, 0x4, 0x4, 0x0)
    /usr/src/go/src/cmd/vet/main.go:333 +0x992
main.main()
    /usr/src/go/src/cmd/vet/main.go:241 +0x335
exit status 2
panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location
 [recovered]
    panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location


goroutine 1 [running]:
panic(0x660b20, 0xc42039b140)
    /usr/src/go/src/runtime/panic.go:500 +0x1a1
go/types.(*Checker).handleBailout(0xc4200bc1c0, 0xc42027d8d8)
    /usr/src/go/src/go/types/check.go:213 +0xae
panic(0x660b20, 0xc42039b140)
    /usr/src/go/src/runtime/panic.go:458 +0x243
go/internal/gcimporter.(*importer).declare(0xc420094840, 0x7da1e0, 0xc42042a230)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:173 +0x17c
go/internal/gcimporter.(*importer).obj(0xc420094840, 0xfffffffffffffffc)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:193 +0x1af
go/internal/gcimporter.BImportData(0xc4200170b0, 0xc4203e2000, 0x3a22f, 0x3fe00, 0xc420160b47, 0x4, 0x0, 0x4, 0x0, 0x0)
    /usr/src/go/src/go/internal/gcimporter/bimport.go:86 +0x34c
go/internal/gcimporter.Import(0xc4200170b0, 0xc420160b47, 0x4, 0x7ffcda31a2aa, 0x13, 0xc420188c80, 0x0, 0x0)
    /usr/src/go/src/go/internal/gcimporter/gcimporter.go:166 +0x551
go/importer.gcimports.ImportFrom(0xc4200170b0, 0xc420160b47, 0x4, 0x7ffcda31a2aa, 0x13, 0x0, 0xc420188b40, 0x0, 0x0)
    /usr/src/go/src/go/importer/importer.go:70 +0x67
go/types.(*Checker).collectObjects(0xc4200bc1c0)
    /usr/src/go/src/go/types/resolver.go:191 +0x81d
go/types.(*Checker).checkFiles(0xc4200bc1c0, 0xc420184ba0, 0x3, 0x4, 0x0, 0x0)
    /usr/src/go/src/go/types/check.go:225 +0xaa
go/types.(*Checker).Files(0xc4200bc1c0, 0xc420184ba0, 0x3, 0x4, 0xc420180c90, 0xc4200cf960)
    /usr/src/go/src/go/types/check.go:218 +0x49
go/types.(*Config).Check(0xc420186580, 0xc42000f970, 0xa, 0xc42000ba80, 0xc420184ba0, 0x3, 0x4, 0xc420188190, 0x7f1e3d0ab000, 0x0, ...)
    /usr/src/go/src/go/types/api.go:344 +0x19f
main.(*Package).check(0xc420012e40, 0xc42000ba80, 0xc420184ba0, 0x3, 0x4, 0xc420184bc0, 0x2)
    /usr/src/go/src/cmd/vet/types.go:76 +0x36c
main.doPackage(0x6b905c, 0x1, 0xc42000a350, 0x3, 0x3, 0x0)
    /usr/src/go/src/cmd/vet/main.go:333 +0x992
main.main()
    /usr/src/go/src/cmd/vet/main.go:241 +0x335
exit status 2
server/legacy.go:47: possible formatting directive in Println call
server/restore.go:36: possible formatting directive in Println call
exit status 1
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commented Jun 10, 2016

Note that go too vet . works as intended.

@adg

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commented Jun 10, 2016

@OneOfOne can you share the package source code that triggers the panic?

@robpike

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commented Jun 10, 2016

More specifically, can you please reduce this to a simple, non-proprietary example that isolates the problem?

@OneOfOne

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commented Jun 10, 2016

I'll try, but I'm not even sure which file is causing it, mainly because we don't have anything with those imports.

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commented Jun 10, 2016

I tried to isolate it as much as possible but I can't make a reproducible case.

I hunted down the internal packages causing it (2 of them) but there's nothing weird in them, go 1.6's vet works as expected, golint doesn't say anything weird.

I'll look more into it after work today.

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commented Jun 10, 2016

@OneOfOne This may be due to installed packages compiled by different versions of the compiler - we had this bug in the past and I've fixed it (at least the instance we've seen so far). Can you reproduce it? If so, can you try to re-compile everything with the latest compiler (1.7 beta) and see if you can still reproduce it? Thanks.

@griesemer griesemer added this to the Go1.7 milestone Jun 10, 2016

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commented Jun 10, 2016

@griesemer I coulda swore I nuked /pkg/ before I tested but I was wrong, it works now, I'll close this.

@OneOfOne OneOfOne closed this Jun 10, 2016

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commented Jun 16, 2016

I just got bit by this. Just like the OP, I have no clue why this is or where, but it definitely happens in my workspace, when I was working on peco/peco@c74a783

I'm using go version devel +3c6b668 Thu Jun 2 00:22:03 2016 +0000 darwin/amd64, and yes, I probably have lots of outdated installed packages.

go tool vet .
panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location
 [recovered]
    panic: inconsistent import:
    var time.UTC *time.Location
previously imported as:
    var UTC *time.Location


goroutine 1 [running]:
panic(0x25f720, 0xc420334850)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/runtime/panic.go:500 +0x1a1
go/types.(*Checker).handleBailout(0xc4200b61c0, 0xc4203e7580)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/types/check.go:213 +0xae
panic(0x25f720, 0xc420334850)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/runtime/panic.go:458 +0x243
go/internal/gcimporter.(*importer).declare(0xc42047a180, 0x3da1c0, 0xc42032fe50)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/internal/gcimporter/bimport.go:173 +0x17c
go/internal/gcimporter.(*importer).obj(0xc42047a180, 0xfffffffffffffffc)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/internal/gcimporter/bimport.go:193 +0x1af
go/internal/gcimporter.BImportData(0xc420014f00, 0xc420482000, 0x3a232, 0x3fe00, 0xc4201ec817, 0x4, 0x0, 0x4, 0x0, 0x0)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/internal/gcimporter/bimport.go:86 +0x34c
go/internal/gcimporter.Import(0xc420014f00, 0xc4201ec817, 0x4, 0x2b769c, 0x1, 0xc4203a1c70, 0x0, 0x0)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/internal/gcimporter/gcimporter.go:166 +0x551
go/importer.gcimports.ImportFrom(0xc420014f00, 0xc4201ec817, 0x4, 0x2b769c, 0x1, 0x0, 0xc420436aa0, 0x0, 0x0)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/importer/importer.go:70 +0x67
go/types.(*Checker).collectObjects(0xc4200b61c0)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/types/resolver.go:191 +0x81d
go/types.(*Checker).checkFiles(0xc4200b61c0, 0xc420326d00, 0x1d, 0x20, 0x0, 0x0)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/types/check.go:225 +0xaa
go/types.(*Checker).Files(0xc4200b61c0, 0xc420326d00, 0x1d, 0x20, 0xc4203aa990, 0xc4200c9608)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/types/check.go:218 +0x49
go/types.(*Config).Check(0xc4203acc80, 0xc420161e70, 0x4, 0xc42016b700, 0xc420326d00, 0x1d, 0x20, 0xc4203a0cd0, 0x460000, 0x0, ...)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/go/types/api.go:344 +0x19f
main.(*Package).check(0xc420203500, 0xc42016b700, 0xc420326d00, 0x1d, 0x20, 0x0, 0xc4203b2000)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/cmd/vet/types.go:76 +0x36c
main.doPackage(0x7fff5fbff695, 0x1, 0xc42000d080, 0x1d, 0x2c, 0x0)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/cmd/vet/main.go:333 +0x992
main.doPackageDir(0x7fff5fbff695, 0x1)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/cmd/vet/main.go:281 +0x5fd
main.visit(0x7fff5fbff695, 0x1, 0x3d9280, 0xc4201595f0, 0x0, 0x0, 0x0, 0x0)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/cmd/vet/main.go:367 +0xf3
path/filepath.walk(0x7fff5fbff695, 0x1, 0x3d9280, 0xc4201595f0, 0x2de5a0, 0x0, 0xc420159520)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/path/filepath/path.go:349 +0x81
path/filepath.Walk(0x7fff5fbff695, 0x1, 0x2de5a0, 0xc, 0xc420159520)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/path/filepath/path.go:396 +0xd5
main.walkDir(0x7fff5fbff695, 0x1)
    /Users/daisuke/.gvm/gos/go1.7beta1/src/cmd/vet/main.go:382 +0x41
main.main()
    /Users/daisuke/.gvm/gos/go1.7beta1/src/cmd/vet/main.go:237 +0x2c4
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commented Jun 16, 2016

@lestrrat As you say yourself, you appear to have outdated packages. Make sure they are compiled with the latest compiler and see if the problem persists. If it does, please open a new issue with detailed instructions how to recreate the issue. Thanks.

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commented Jun 16, 2016

okay, that works for me. thanks.

I will check it out later when I get to work. If it's being caused by outdated installed packages and deleting them causes this issue to go away, it's working as intended, yes?

(Update: yep, nuking my $GOPATH/pkg did the trick)

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commented Jun 17, 2016

@lestrrat Yes. A prior version used to have a bug in the new exporter/importer (the compiler's phases which write and read a package's exported interface). That bug has been fixed a while back, but it you have installed packages that were built using the buggy version, you run into this problem).

@mikioh mikioh changed the title go/vet: inconsistent import cmd/vet: inconsistent import Jun 17, 2016

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