[INFO] cloning repository https://github.com/seritake/rust_regex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seritake/rust_regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseritake%2Frust_regex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseritake%2Frust_regex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e32fffccc2837d9b82b19c7f761a668d42ca08e
[INFO] checking seritake/rust_regex against master#0fb279be1d96464c69209053ef0f97ad63088cda for pr-143857
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseritake%2Frust_regex" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/seritake/rust_regex
[INFO] finished tweaking git repo https://github.com/seritake/rust_regex
[INFO] tweaked toml for git repo https://github.com/seritake/rust_regex written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/seritake/rust_regex on toolchain 0fb279be1d96464c69209053ef0f97ad63088cda
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/seritake/rust_regex 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" "+0fb279be1d96464c69209053ef0f97ad63088cda" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: failed to parse manifest at `/workspace/builds/worker-5-tc1/source/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   can't find `benchmark` bench at `benches/benchmark.rs` or `benches/benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.


command failed: exit status: 101

error: failed to parse manifest at `/workspace/builds/worker-5-tc1/source/Cargo.toml`

Caused by:
  can't find `benchmark` bench at `benches/benchmark.rs` or `benches/benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.