cmd/go: TestScript/mod_edit failures

[gopherbot]

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

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestScript/mod_edit
=== PAUSE TestScript/mod_edit
=== CONT  TestScript/mod_edit
    script_test.go:141: 2026-04-02T18:15:35Z
    script_test.go:143: $WORK=/Users/swarming/.swarming/w/ir/x/t/cmd-go-test-3805597209/tmpdir709560120/mod_edit74221771
go proxy: no archive example.com/lazyupgrade v0.1.1: file does not exist

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

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

2026-04-02 16:58 gotip-darwin-arm64-race go@78d52604 cmd/go.TestScript/mod_edit [SKIP] (log)

=== RUN   TestScript/mod_edit
=== PAUSE TestScript/mod_edit
=== CONT  TestScript/mod_edit
    script_test.go:141: 2026-04-02T18:15:35Z
    script_test.go:143: $WORK=/Users/swarming/.swarming/w/ir/x/t/cmd-go-test-3805597209/tmpdir709560120/mod_edit74221771
go proxy: no archive example.com/lazyupgrade v0.1.1: file does not exist

— watchflakes

[dr2chase]

@golang/go-command