x/tools/gopls/internal/golang: TestUnify failures

[gopherbot]

#!watchflakes
default <- pkg == "golang.org/x/tools/gopls/internal/golang" && test == "TestUnify"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestUnify
    testfiles.go:87: go tool not available: /home/swarming/.swarming/w/ir/x/w/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.2.linux-arm/bin/go build -o /dev/null /home/swarming/.swarming/w/ir/x/t/testenv-267063516/main.go: exit status 1
        command-line-arguments: mkdir /home/swarming/.swarming/w/ir/x/t/go-build716361053/b001/: no space left on device
--- FAIL: TestUnify (0.16s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/tools/gopls/internal/golang" && test == "TestUnify"

2025-07-10 16:49 x_tools-go1.23-linux-arm tools@4738c7c0 release-branch.go1.23@317a3c13 x/tools/gopls/internal/golang.TestUnify (log)

=== RUN   TestUnify
    testfiles.go:87: go tool not available: /home/swarming/.swarming/w/ir/x/w/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.2.linux-arm/bin/go build -o /dev/null /home/swarming/.swarming/w/ir/x/t/testenv-267063516/main.go: exit status 1
        command-line-arguments: mkdir /home/swarming/.swarming/w/ir/x/t/go-build716361053/b001/: no space left on device
--- FAIL: TestUnify (0.16s)

— watchflakes