[INFO] cloning repository https://github.com/gyzerok/hackerrank-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gyzerok/hackerrank-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgyzerok%2Fhackerrank-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgyzerok%2Fhackerrank-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb6c11ece9525eb081d151b8e98ba6e81668b79b
[INFO] testing gyzerok/hackerrank-rust against 1.55.0 for beta-1.56-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgyzerok%2Fhackerrank-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gyzerok/hackerrank-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/gyzerok/hackerrank-rust
[INFO] finished tweaking git repo https://github.com/gyzerok/hackerrank-rust
[INFO] tweaked toml for git repo https://github.com/gyzerok/hackerrank-rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/gyzerok/hackerrank-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 3ba095af165a59088fa54521aa02cb4d677dba492c6110393f6e360252488591
[INFO] running `Command { std: "docker" "start" "-a" "3ba095af165a59088fa54521aa02cb4d677dba492c6110393f6e360252488591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ba095af165a59088fa54521aa02cb4d677dba492c6110393f6e360252488591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba095af165a59088fa54521aa02cb4d677dba492c6110393f6e360252488591", kill_on_drop: false }`
[INFO] [stdout] 3ba095af165a59088fa54521aa02cb4d677dba492c6110393f6e360252488591
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 7e79fdd5fa5e3c91738e884ab3f39b940ae7ba91e50c508be206fcc74921cb75
[INFO] running `Command { std: "docker" "start" "-a" "7e79fdd5fa5e3c91738e884ab3f39b940ae7ba91e50c508be206fcc74921cb75", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling hackerrank v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.15s
[INFO] running `Command { std: "docker" "inspect" "7e79fdd5fa5e3c91738e884ab3f39b940ae7ba91e50c508be206fcc74921cb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e79fdd5fa5e3c91738e884ab3f39b940ae7ba91e50c508be206fcc74921cb75", kill_on_drop: false }`
[INFO] [stdout] 7e79fdd5fa5e3c91738e884ab3f39b940ae7ba91e50c508be206fcc74921cb75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ad81464a7ddcec8cd30ea3ced80bf7d03cdf485bf44db62ef92a078f0b90c014
[INFO] running `Command { std: "docker" "start" "-a" "ad81464a7ddcec8cd30ea3ced80bf7d03cdf485bf44db62ef92a078f0b90c014", kill_on_drop: false }`
[INFO] [stderr]    Compiling hackerrank v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "ad81464a7ddcec8cd30ea3ced80bf7d03cdf485bf44db62ef92a078f0b90c014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad81464a7ddcec8cd30ea3ced80bf7d03cdf485bf44db62ef92a078f0b90c014", kill_on_drop: false }`
[INFO] [stdout] ad81464a7ddcec8cd30ea3ced80bf7d03cdf485bf44db62ef92a078f0b90c014
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f478395dbc564a71c018af8702557988060080cbcedcee3f64df96cf53b50df8
[INFO] running `Command { std: "docker" "start" "-a" "f478395dbc564a71c018af8702557988060080cbcedcee3f64df96cf53b50df8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hackerrank-58c90bea05414421)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test challenges::extra_long_factorial::tests::it_works ... ok
[INFO] [stdout] test challenges::sequence_equation::tests::it_works ... ok
[INFO] [stdout] test challenges::find_digits::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f478395dbc564a71c018af8702557988060080cbcedcee3f64df96cf53b50df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f478395dbc564a71c018af8702557988060080cbcedcee3f64df96cf53b50df8", kill_on_drop: false }`
[INFO] [stdout] f478395dbc564a71c018af8702557988060080cbcedcee3f64df96cf53b50df8