fix: only show fifo warnings when perf env is present#112

not-matthias merged 1 commit intomainCodSpeedHQ/codspeed-rust:mainfrom

cod-1081-codspeed-rust-shows-warning-in-walltime-when-not-runningCodSpeedHQ/codspeed-rust:cod-1081-codspeed-rust-shows-warning-in-walltime-when-not-runningCopy head branch name to clipboard