[INFO] cloning repository https://github.com/joelong01/rust_squareroot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joelong01/rust_squareroot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelong01%2Frust_squareroot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelong01%2Frust_squareroot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d137f3d098a0f9f1de089b7fc2327971aef93a9f
[INFO] testing joelong01/rust_squareroot against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelong01%2Frust_squareroot" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joelong01/rust_squareroot on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joelong01/rust_squareroot
[INFO] finished tweaking git repo https://github.com/joelong01/rust_squareroot
[INFO] tweaked toml for git repo https://github.com/joelong01/rust_squareroot written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/joelong01/rust_squareroot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a376b65d0c1cdb3737ede40e3fc97749e274b83dc5acfe3f5688e09eab8678f9
[INFO] running `Command { std: "docker" "start" "-a" "a376b65d0c1cdb3737ede40e3fc97749e274b83dc5acfe3f5688e09eab8678f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a376b65d0c1cdb3737ede40e3fc97749e274b83dc5acfe3f5688e09eab8678f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a376b65d0c1cdb3737ede40e3fc97749e274b83dc5acfe3f5688e09eab8678f9", kill_on_drop: false }`
[INFO] [stdout] a376b65d0c1cdb3737ede40e3fc97749e274b83dc5acfe3f5688e09eab8678f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0ff2172c4f28025e8b95bd2e176c3faa4fc1f11fb9980f851b8e9fa55cd7f5e
[INFO] running `Command { std: "docker" "start" "-a" "e0ff2172c4f28025e8b95bd2e176c3faa4fc1f11fb9980f851b8e9fa55cd7f5e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_squareroot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "e0ff2172c4f28025e8b95bd2e176c3faa4fc1f11fb9980f851b8e9fa55cd7f5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ff2172c4f28025e8b95bd2e176c3faa4fc1f11fb9980f851b8e9fa55cd7f5e", kill_on_drop: false }`
[INFO] [stdout] e0ff2172c4f28025e8b95bd2e176c3faa4fc1f11fb9980f851b8e9fa55cd7f5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 215b7912ce18edc6a7c2a3c0e976478860a72b3425dfec2ec135e19174162bff
[INFO] running `Command { std: "docker" "start" "-a" "215b7912ce18edc6a7c2a3c0e976478860a72b3425dfec2ec135e19174162bff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_squareroot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "215b7912ce18edc6a7c2a3c0e976478860a72b3425dfec2ec135e19174162bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "215b7912ce18edc6a7c2a3c0e976478860a72b3425dfec2ec135e19174162bff", kill_on_drop: false }`
[INFO] [stdout] 215b7912ce18edc6a7c2a3c0e976478860a72b3425dfec2ec135e19174162bff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c4ced711a34a59ee45ab271c8937656524c85eda1b58a46daf1a7985a458b93a
[INFO] running `Command { std: "docker" "start" "-a" "c4ced711a34a59ee45ab271c8937656524c85eda1b58a46daf1a7985a458b93a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_squareroot-dd6844852eed36c5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c4ced711a34a59ee45ab271c8937656524c85eda1b58a46daf1a7985a458b93a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4ced711a34a59ee45ab271c8937656524c85eda1b58a46daf1a7985a458b93a", kill_on_drop: false }`
[INFO] [stdout] c4ced711a34a59ee45ab271c8937656524c85eda1b58a46daf1a7985a458b93a