Sudo/fingerprint prompt during `codspeed run` has no context (rolling buffer swallows setup messages)

[not-matthias]

What

During codspeed run --mode memory, the one-time sudo prompt used to grant codspeed-memtrack its file capabilities appears with no context. On a machine with pam_fprintd, the user just sees:

› Running the benchmarks

Place your right index finger on the fingerprint reader

The explanatory messages that are supposed to precede it never show up:

• "Granting codspeed-memtrack the capabilities it needs … (requires sudo)."
• "Sudo privileges are required to continue."

[GuillaumeLagrange]

It's linked to the rolling buffer implementation limitations, did not find an elegant solution at the time