[INFO] cloning repository https://github.com/bnjbvr/regalloc_benchmarks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bnjbvr/regalloc_benchmarks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fregalloc_benchmarks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fregalloc_benchmarks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43e785b5564d51c41b823a801d70e7a2253bf549
[INFO] checking bnjbvr/regalloc_benchmarks against master#cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3 for pr-135841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fregalloc_benchmarks" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bnjbvr/regalloc_benchmarks on toolchain cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bnjbvr/regalloc_benchmarks
[INFO] finished tweaking git repo https://github.com/bnjbvr/regalloc_benchmarks
[INFO] tweaked toml for git repo https://github.com/bnjbvr/regalloc_benchmarks written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bnjbvr/regalloc_benchmarks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `regalloc = "^0.26.0"`
[INFO] [stderr] candidate versions found which didn't match: 0.0.34, 0.0.33, 0.0.32, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `regalloc-benchmarks v0.1.0 (/workspace/builds/worker-2-tc1/source)`


command failed: exit status: 101

    Updating crates.io index
error: failed to select a version for the requirement `regalloc = "^0.26.0"`
candidate versions found which didn't match: 0.0.34, 0.0.33, 0.0.32, ...
location searched: crates.io index
required by package `regalloc-benchmarks v0.1.0 (/workspace/builds/worker-2-tc1/source)`