x/tools/cmd/signature-fuzzer/internal/fuzz-generator: TestEmitBadRunFailure failures

[gopherbot]

#!watchflakes
default <- pkg == "golang.org/x/tools/cmd/signature-fuzzer/internal/fuzz-generator" && test == "TestEmitBadRunFailure"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestEmitBadRunFailure
    gen_test.go:312: build failed: 001/xChecker8: /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: fork/exec /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: resource temporarily unavailable
        001/xChecker9: /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: fork/exec /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: resource temporarily unavailable
        
--- FAIL: TestEmitBadRunFailure (6.15s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/tools/cmd/signature-fuzzer/internal/fuzz-generator" && test == "TestEmitBadRunFailure"

2025-06-10 14:56 x_tools-go1.25-openbsd-ppc64 tools@8befc65a release-branch.go1.25@8ac5714e x/tools/cmd/signature-fuzzer/internal/fuzz-generator.TestEmitBadRunFailure (log)

=== RUN   TestEmitBadRunFailure
    gen_test.go:312: build failed: 001/xChecker8: /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: fork/exec /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: resource temporarily unavailable
        001/xChecker9: /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: fork/exec /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: resource temporarily unavailable
        
--- FAIL: TestEmitBadRunFailure (6.15s)

2025-06-13 15:48 x_tools-gotip-openbsd-ppc64 tools@d9ea5272 go@96a6e147 x/tools/cmd/signature-fuzzer/internal/fuzz-generator.TestEmitBadRunFailure (log)

=== RUN   TestEmitBadRunFailure
    gen_test.go:312: build failed: 001/xCaller8: /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: fork/exec /home/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/openbsd_ppc64/compile: resource temporarily unavailable
        
--- FAIL: TestEmitBadRunFailure (7.18s)

— watchflakes