cmd/go: TestScript/mod_tidy_oldgo failures

[gopherbot]

#!watchflakes
default <- pkg == "cmd/go" && test == "TestScript/mod_tidy_oldgo"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestScript/mod_tidy_oldgo
=== PAUSE TestScript/mod_tidy_oldgo
=== CONT  TestScript/mod_tidy_oldgo
    script_test.go:139: 2025-03-31T22:45:49Z
    script_test.go:141: $WORK=C:\b\s\w\ir\x\t\cmd-go-test-3365801159\tmpdir3542601328\mod_tidy_oldgo2327494633
    script_test.go:163: 
        PATH=C:\b\s\w\ir\x\t\cmd-go-test-3365801159\tmpdir3542601328\testbin;C:\b\s\w\ir\x\w\goroot\bin;C:\b\s\w\ir\x\w\goroot\bin;C:\b\s\w\ir\x\w\goroot\bin;C:\b\s\w\ir\cache\tools\bin;C:\b\s\w\ir\bbagent_utility_packages;C:\b\s\w\ir\bbagent_utility_packages\bin;C:\b\s\w\ir\cipd_bin_packages;C:\b\s\w\ir\cipd_bin_packages\bin;C:\b\s\w\ir\cache\cipd_client;C:\b\s\w\ir\cache\cipd_client\bin;C:\b\s\cipd_cache\bin;C:\Program Files\OpenSSH\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\Puppet Labs\Puppet\bin;C:\Users\chrome-bot\AppData\Local\Microsoft\WindowsApps;C:\b\s\w\ir\cache\tools\cc\windows\gcc32\bin
        USERPROFILE=/no-home
        CCACHE_DISABLE=1
        GOARCH=386
...
        panic: runtime error: invalid memory address or nil pointer dereference
        [signal 0xc0000005 code=0x0 addr=0x20 pc=0x380884]
        
        goroutine 35 gp=0x1ee4008 m=8 mp=0x2100008 [running]:
        panic({0x91e6a0, 0xf46900})
        	C:/b/s/w/ir/x/w/goroot/src/runtime/panic.go:802 +0x137 fp=0x1fb9750 sp=0x1fb96fc pc=0x18d677
        runtime.panicmem(...)
        	C:/b/s/w/ir/x/w/goroot/src/runtime/panic.go:262
        runtime.sigpanic()
        	C:/b/s/w/ir/x/w/goroot/src/runtime/signal_windows.go:393 +0x1d7 fp=0x1fb9774 sp=0x1fb9750 pc=0x16e4c7
...
        runtime.gcBgMarkWorker(0x201a300)
        	C:/b/s/w/ir/x/w/goroot/src/runtime/mgc.go:1431 +0xe2 fp=0x206ffe8 sp=0x206ff8c pc=0x1340a2
        runtime.gcBgMarkStartWorkers.gowrap1()
        	C:/b/s/w/ir/x/w/goroot/src/runtime/mgc.go:1347 +0x25 fp=0x206fff0 sp=0x206ffe8 pc=0x133fa5
        runtime.goexit({})
        	C:/b/s/w/ir/x/w/goroot/src/runtime/asm_386.s:1386 +0x1 fp=0x206fff4 sp=0x206fff0 pc=0x194691
        created by runtime.gcBgMarkStartWorkers in goroutine 10
        	C:/b/s/w/ir/x/w/goroot/src/runtime/mgc.go:1347 +0x11a
    script_test.go:163: FAIL: testdata\script\mod_tidy_oldgo.txt:7: go mod tidy: exit status 2
--- FAIL: TestScript/mod_tidy_oldgo (1.05s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/go" && test == "TestScript/mod_tidy_oldgo"

2025-03-31 22:30 gotip-windows-386 go@c6a1dc47 cmd/go.TestScript/mod_tidy_oldgo (log)

=== RUN   TestScript/mod_tidy_oldgo
=== PAUSE TestScript/mod_tidy_oldgo
=== CONT  TestScript/mod_tidy_oldgo
    script_test.go:139: 2025-03-31T22:45:49Z
    script_test.go:141: $WORK=C:\b\s\w\ir\x\t\cmd-go-test-3365801159\tmpdir3542601328\mod_tidy_oldgo2327494633
    script_test.go:163: 
        PATH=C:\b\s\w\ir\x\t\cmd-go-test-3365801159\tmpdir3542601328\testbin;C:\b\s\w\ir\x\w\goroot\bin;C:\b\s\w\ir\x\w\goroot\bin;C:\b\s\w\ir\x\w\goroot\bin;C:\b\s\w\ir\cache\tools\bin;C:\b\s\w\ir\bbagent_utility_packages;C:\b\s\w\ir\bbagent_utility_packages\bin;C:\b\s\w\ir\cipd_bin_packages;C:\b\s\w\ir\cipd_bin_packages\bin;C:\b\s\w\ir\cache\cipd_client;C:\b\s\w\ir\cache\cipd_client\bin;C:\b\s\cipd_cache\bin;C:\Program Files\OpenSSH\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\Puppet Labs\Puppet\bin;C:\Users\chrome-bot\AppData\Local\Microsoft\WindowsApps;C:\b\s\w\ir\cache\tools\cc\windows\gcc32\bin
        USERPROFILE=/no-home
        CCACHE_DISABLE=1
        GOARCH=386
...
        panic: runtime error: invalid memory address or nil pointer dereference
        [signal 0xc0000005 code=0x0 addr=0x20 pc=0x380884]
        
        goroutine 35 gp=0x1ee4008 m=8 mp=0x2100008 [running]:
        panic({0x91e6a0, 0xf46900})
        	C:/b/s/w/ir/x/w/goroot/src/runtime/panic.go:802 +0x137 fp=0x1fb9750 sp=0x1fb96fc pc=0x18d677
        runtime.panicmem(...)
        	C:/b/s/w/ir/x/w/goroot/src/runtime/panic.go:262
        runtime.sigpanic()
        	C:/b/s/w/ir/x/w/goroot/src/runtime/signal_windows.go:393 +0x1d7 fp=0x1fb9774 sp=0x1fb9750 pc=0x16e4c7
...
        runtime.gcBgMarkWorker(0x201a300)
        	C:/b/s/w/ir/x/w/goroot/src/runtime/mgc.go:1431 +0xe2 fp=0x206ffe8 sp=0x206ff8c pc=0x1340a2
        runtime.gcBgMarkStartWorkers.gowrap1()
        	C:/b/s/w/ir/x/w/goroot/src/runtime/mgc.go:1347 +0x25 fp=0x206fff0 sp=0x206ffe8 pc=0x133fa5
        runtime.goexit({})
        	C:/b/s/w/ir/x/w/goroot/src/runtime/asm_386.s:1386 +0x1 fp=0x206fff4 sp=0x206fff0 pc=0x194691
        created by runtime.gcBgMarkStartWorkers in goroutine 10
        	C:/b/s/w/ir/x/w/goroot/src/runtime/mgc.go:1347 +0x11a
    script_test.go:163: FAIL: testdata\script\mod_tidy_oldgo.txt:7: go mod tidy: exit status 2
--- FAIL: TestScript/mod_tidy_oldgo (1.05s)

— watchflakes

[qmuntal]

Fixed in https://go.dev/cl/662575.