[INFO] cloning repository https://github.com/leungrw/leungrw_interview_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leungrw/leungrw_interview_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleungrw%2Fleungrw_interview_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleungrw%2Fleungrw_interview_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fec36cb566d639efacca112bcb51187cde31a49e
[INFO] testing leungrw/leungrw_interview_rust against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleungrw%2Fleungrw_interview_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/leungrw/leungrw_interview_rust on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leungrw/leungrw_interview_rust
[INFO] finished tweaking git repo https://github.com/leungrw/leungrw_interview_rust
[INFO] tweaked toml for git repo https://github.com/leungrw/leungrw_interview_rust written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/leungrw/leungrw_interview_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c835b20317ada405289ca3347a199314e1ff1d2af167fd282e4adbfdc65f76f
[INFO] running `Command { std: "docker" "start" "-a" "6c835b20317ada405289ca3347a199314e1ff1d2af167fd282e4adbfdc65f76f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c835b20317ada405289ca3347a199314e1ff1d2af167fd282e4adbfdc65f76f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c835b20317ada405289ca3347a199314e1ff1d2af167fd282e4adbfdc65f76f", kill_on_drop: false }`
[INFO] [stdout] 6c835b20317ada405289ca3347a199314e1ff1d2af167fd282e4adbfdc65f76f
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01ccb21d8f77b1828f1c5e34e167bef76fc118fb4a3dc7653efa9bc5443e3e6a
[INFO] running `Command { std: "docker" "start" "-a" "01ccb21d8f77b1828f1c5e34e167bef76fc118fb4a3dc7653efa9bc5443e3e6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling leungrw_interview_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "01ccb21d8f77b1828f1c5e34e167bef76fc118fb4a3dc7653efa9bc5443e3e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ccb21d8f77b1828f1c5e34e167bef76fc118fb4a3dc7653efa9bc5443e3e6a", kill_on_drop: false }`
[INFO] [stdout] 01ccb21d8f77b1828f1c5e34e167bef76fc118fb4a3dc7653efa9bc5443e3e6a
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1d2e0359cd6db02d60fb2103879880fc713aa9596c39eec34c7148a58af6820
[INFO] running `Command { std: "docker" "start" "-a" "c1d2e0359cd6db02d60fb2103879880fc713aa9596c39eec34c7148a58af6820", kill_on_drop: false }`
[INFO] [stderr]    Compiling leungrw_interview_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "c1d2e0359cd6db02d60fb2103879880fc713aa9596c39eec34c7148a58af6820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1d2e0359cd6db02d60fb2103879880fc713aa9596c39eec34c7148a58af6820", kill_on_drop: false }`
[INFO] [stdout] c1d2e0359cd6db02d60fb2103879880fc713aa9596c39eec34c7148a58af6820
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dafd072138a1bf742addf79c8b4f4516ce754502f2ac77d4967e490f0cc85120
[INFO] running `Command { std: "docker" "start" "-a" "dafd072138a1bf742addf79c8b4f4516ce754502f2ac77d4967e490f0cc85120", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leungrw_interview_rust-ccc1742ed3512a19)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::content_string_existant_file ... ok
[INFO] [stdout] test tests::matching_word_to_file ... ok
[INFO] [stdout] test tests::counting_char_of_file ... ok
[INFO] [stdout] test tests::content_string_non_existant_file - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dafd072138a1bf742addf79c8b4f4516ce754502f2ac77d4967e490f0cc85120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dafd072138a1bf742addf79c8b4f4516ce754502f2ac77d4967e490f0cc85120", kill_on_drop: false }`
[INFO] [stdout] dafd072138a1bf742addf79c8b4f4516ce754502f2ac77d4967e490f0cc85120