x/tools/gopls: panic in Analyze with patch version in go.mod file

[irahardianto]

gopls version: v0.15.2/go1.20.4
gopls flags:
update flags: proxy
extension version: 0.41.2
environment: Visual Studio Code darwin
initialization error: undefined
issue timestamp: Sat, 30 Mar 2024 00:43:17 GMT
restart history:
Fri, 29 Mar 2024 22:57:47 GMT: activation (enabled: true)

ATTENTION: PLEASE PROVIDE THE DETAILS REQUESTED BELOW.

Describe what you observed.

panic: invalid Go version "go1.22.1" (should be something like "go1.12")

goroutine 191 [running]:
go/types.NewChecker(0x140002ba5d0%3F, 0x140004b60c0, 0x140001e9310, 0x0%3F)
	  check.go:237  0x1e8
golang.org/x/tools/gopls/internal/cache.(*analysisNode).typeCheck(0x140003a8000, {0x14000292410, 0x1, 0x1})
	  analysis.go:1028  0x5fc
golang.org/x/tools/gopls/internal/cache.(*analysisNode).run(0x140003a8000, {0x101c1e998%3F, 0x14000497e30})
	  analysis.go:810  0x1d4
golang.org/x/tools/gopls/internal/cache.(*analysisNode).runCached(0x140003a8000, {0x101c1e998%3F, 0x14000497e30})
	  analysis.go:672  0x104
golang.org/x/tools/gopls/internal/cache.(*Snapshot).Analyze.func6.1()
	  analysis.go:398  0xa4
golang.org/x/sync/errgroup.(*Group).Go.func1()
	  errgroup.go:78  0x5c
created by golang.org/x/sync/errgroup.(*Group).Go
	  errgroup.go:75  0xa0

gopls stats -anon

{ "DirStats": { "Files": 29, "TestdataFiles": 0, "GoFiles": 1, "ModFiles": 1, "Dirs": 20 }, "GOARCH": "arm64", "GOOS": "darwin", "GOPACKAGESDRIVER": "", "GOPLSCACHE": "", "GoVersion": "go1.20.4", "GoplsVersion": "v0.15.2", "InitialWorkspaceLoadDuration": "55.90625ms", "MemStats": { "HeapAlloc": 2758320, "HeapInUse": 5218304, "TotalAlloc": 12841176 }, "WorkspaceStats": { "Files": { "Total": 2, "Largest": 57, "Errs": 0 }, "Views": [ { "GoCommandVersion": "go1.22.1", "AllPackages": { "Packages": 1, "LargestPackage": 1, "CompiledGoFiles": 1, "Modules": 1 }, "WorkspacePackages": { "Packages": 1, "LargestPackage": 1, "CompiledGoFiles": 1, "Modules": 1 }, "Diagnostics": 1 } ] } }

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[findleyr]

This is exactly like #66195, but in Analyze rather than TypeCheck.

Transferring to the Go issue tracker, and fixing in gopls@v0.15.3.

[findleyr]

For now, a viable workaround is to install gopls with go1.21+.

However, since this version of gopls nominally supports being built with 1.20, we should fix the crash.