[INFO] cloning repository https://github.com/IceyBlackTea/learn_algorithms_with_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IceyBlackTea/learn_algorithms_with_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIceyBlackTea%2Flearn_algorithms_with_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIceyBlackTea%2Flearn_algorithms_with_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ff973a790f5b93b4e3818aad3f4e940f9764863
[INFO] testing IceyBlackTea/learn_algorithms_with_rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIceyBlackTea%2Flearn_algorithms_with_rust" "/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/IceyBlackTea/learn_algorithms_with_rust 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/IceyBlackTea/learn_algorithms_with_rust
[INFO] finished tweaking git repo https://github.com/IceyBlackTea/learn_algorithms_with_rust
[INFO] tweaked toml for git repo https://github.com/IceyBlackTea/learn_algorithms_with_rust written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/IceyBlackTea/learn_algorithms_with_rust 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] [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] 628964dd60608895c1133fcc6c1200b126c6c6806c692287719a44a9f81d3a8b
[INFO] running `Command { std: "docker" "start" "-a" "628964dd60608895c1133fcc6c1200b126c6c6806c692287719a44a9f81d3a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "628964dd60608895c1133fcc6c1200b126c6c6806c692287719a44a9f81d3a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "628964dd60608895c1133fcc6c1200b126c6c6806c692287719a44a9f81d3a8b", kill_on_drop: false }`
[INFO] [stdout] 628964dd60608895c1133fcc6c1200b126c6c6806c692287719a44a9f81d3a8b
[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] 9ddf3316d888619fa1c2ca76513126155816f274f51ad17cf1262a6d8710734a
[INFO] running `Command { std: "docker" "start" "-a" "9ddf3316d888619fa1c2ca76513126155816f274f51ad17cf1262a6d8710734a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling learn_algorithms_with_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.60s
[INFO] running `Command { std: "docker" "inspect" "9ddf3316d888619fa1c2ca76513126155816f274f51ad17cf1262a6d8710734a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ddf3316d888619fa1c2ca76513126155816f274f51ad17cf1262a6d8710734a", kill_on_drop: false }`
[INFO] [stdout] 9ddf3316d888619fa1c2ca76513126155816f274f51ad17cf1262a6d8710734a
[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] 99eb71779199fd591f1437727ca1260372455da2b6f558316df914922c051136
[INFO] running `Command { std: "docker" "start" "-a" "99eb71779199fd591f1437727ca1260372455da2b6f558316df914922c051136", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_algorithms_with_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "99eb71779199fd591f1437727ca1260372455da2b6f558316df914922c051136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99eb71779199fd591f1437727ca1260372455da2b6f558316df914922c051136", kill_on_drop: false }`
[INFO] [stdout] 99eb71779199fd591f1437727ca1260372455da2b6f558316df914922c051136
[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] 02cb3f39587c1f7afc3e190c82af4d9a8224e4d7eab422072ad0b5c3d84fcfb1
[INFO] running `Command { std: "docker" "start" "-a" "02cb3f39587c1f7afc3e190c82af4d9a8224e4d7eab422072ad0b5c3d84fcfb1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn_algorithms_with_rust-a46351e3f5fbe16c)
[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" "02cb3f39587c1f7afc3e190c82af4d9a8224e4d7eab422072ad0b5c3d84fcfb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02cb3f39587c1f7afc3e190c82af4d9a8224e4d7eab422072ad0b5c3d84fcfb1", kill_on_drop: false }`
[INFO] [stdout] 02cb3f39587c1f7afc3e190c82af4d9a8224e4d7eab422072ad0b5c3d84fcfb1