testing: TestTRun/output_with_chatty_and_json failures

[gopherbot]

#!watchflakes
default <- pkg == "testing" && test == "TestTRun/output_with_chatty_and_json"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestTRun/output_with_chatty_and_json
    sub_test.go:632: output with chatty and json:output:
        got:
        --- FAIL: TestTRun/output_with_chatty_and_json (0.03s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "testing" && test == "TestTRun/output_with_chatty_and_json"

2025-05-15 21:06 gotip-js-wasm go@11fa0de4 testing.TestTRun/output_with_chatty_and_json (log)

=== RUN   TestTRun/output_with_chatty_and_json
    sub_test.go:632: output with chatty and json:output:
        got:
        --- FAIL: TestTRun/output_with_chatty_and_json (0.03s)

— watchflakes