[INFO] cloning repository https://github.com/fbcouto/adaptive-parallel-multimerge-sort
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fbcouto/adaptive-parallel-multimerge-sort" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffbcouto%2Fadaptive-parallel-multimerge-sort", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffbcouto%2Fadaptive-parallel-multimerge-sort'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ebd68898adacca2797c1a7dd238257361dff712
[INFO] checking fbcouto/adaptive-parallel-multimerge-sort against c9ff496891c278ad660bc0ab85c1f0b72059464a for pr-160491
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffbcouto%2Fadaptive-parallel-multimerge-sort" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fbcouto/adaptive-parallel-multimerge-sort
[INFO] finished tweaking git repo https://github.com/fbcouto/adaptive-parallel-multimerge-sort
[INFO] tweaked toml for git repo https://github.com/fbcouto/adaptive-parallel-multimerge-sort written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fbcouto/adaptive-parallel-multimerge-sort on toolchain c9ff496891c278ad660bc0ab85c1f0b72059464a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 77 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.8.2)
[INFO] [stderr]       Adding rand v0.8.7 (available: v0.10.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: Cargo.toml: can't find `my_benchmark` bench at `benches/my_benchmark.rs` or `benches/my_benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.
[INFO] [stderr] error: could not parse `adaptive-parallel-multimerge-sort` (manifest) due to 1 previous error


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: command failed: exit status: 101
       
       error: Cargo.toml: can't find `my_benchmark` bench at `benches/my_benchmark.rs` or `benches/my_benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.
       error: could not parse `adaptive-parallel-multimerge-sort` (manifest) due to 1 previous error