github action continue after error in `foo | tee output.txt`

[LuckyTurtleDev]

if you use run cargo +nightly bench | tee output.txt exit code 0 will be returned if cargo exit with an error, because tee has exit successful. So github action continue after the error and does not fail.

[LuckyTurtleDev]

The readme/example should suggest

- name: Run benchmark
        run: |
          set -eo pipefail
          cargo +nightly bench | tee output.txt

instead of

- name: Run benchmark
        run:  cargo +nightly bench | tee output.txt

Same for the other languages.