cmd/vet: TestVet/stdversion failures

[gopherbot]

#!watchflakes
default <- pkg == "cmd/vet" && test == "TestVet/stdversion"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestVet/stdversion
    vet_test.go:166: error check failed: 
        Unmatched Errors:
        unicode: C:\b\s\w\ir\x\t\go-build15998775\b277\vet.test.exe: fork/exec C:\b\s\w\ir\x\t\go-build15998775\b277\vet.test.exe: The parameter is incorrect.
    vet_test.go:167: vet stderr:
         unicode: C:\b\s\w\ir\x\t\go-build15998775\b277\vet.test.exe: fork/exec C:\b\s\w\ir\x\t\go-build15998775\b277\vet.test.exe: The parameter is incorrect.
        # stdversion
        .\stdversion.go:5:17: reflect.TypeFor requires go1.22 or later (module is go1.21)
        
--- FAIL: TestVet/stdversion (4.54s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/vet" && test == "TestVet/stdversion"

2025-04-06 16:36 gotip-windows-amd64 go@6fd9ee3d cmd/vet.TestVet/stdversion (log)

=== RUN   TestVet/stdversion
    vet_test.go:166: error check failed: 
        Unmatched Errors:
        unicode: C:\b\s\w\ir\x\t\go-build15998775\b277\vet.test.exe: fork/exec C:\b\s\w\ir\x\t\go-build15998775\b277\vet.test.exe: The parameter is incorrect.
    vet_test.go:167: vet stderr:
         unicode: C:\b\s\w\ir\x\t\go-build15998775\b277\vet.test.exe: fork/exec C:\b\s\w\ir\x\t\go-build15998775\b277\vet.test.exe: The parameter is incorrect.
        # stdversion
        .\stdversion.go:5:17: reflect.TypeFor requires go1.22 or later (module is go1.21)
        
--- FAIL: TestVet/stdversion (4.54s)

— watchflakes