Skip broken commits when searching for missing commits.
Skip broken commits when searching for missing commits.

nrc/rustc-perf,Mark-Simulacrum/rustc-perf-collector,Mark-Simulacrum/rustc-perf-collector,Mark-Simulacrum/rustc-perf-collector,Mark-Simulacrum/rustc-perf-collector,nrc/rustc-perf,Mark-Simulacrum/rustc-perf-collector,Mark-Simulacrum/rustc-perf-collector,nrc/rustc-perf