[INFO] cloning repository https://github.com/OHeroJ/rust-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OHeroJ/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOHeroJ%2Frust-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOHeroJ%2Frust-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 783efa8dc5df2ec2df2ada5ee7af3bc48b00afee
[INFO] testing OHeroJ/rust-learn against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOHeroJ%2Frust-learn" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OHeroJ/rust-learn on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/OHeroJ/rust-learn
[INFO] finished tweaking git repo https://github.com/OHeroJ/rust-learn
[INFO] tweaked toml for git repo https://github.com/OHeroJ/rust-learn written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/OHeroJ/rust-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb7e23ae551c6bca9e961bb1f0120fce713cc5a7f87f8329bc219408fbdb4d17
[INFO] running `Command { std: "docker" "start" "-a" "bb7e23ae551c6bca9e961bb1f0120fce713cc5a7f87f8329bc219408fbdb4d17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb7e23ae551c6bca9e961bb1f0120fce713cc5a7f87f8329bc219408fbdb4d17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb7e23ae551c6bca9e961bb1f0120fce713cc5a7f87f8329bc219408fbdb4d17", kill_on_drop: false }`
[INFO] [stdout] bb7e23ae551c6bca9e961bb1f0120fce713cc5a7f87f8329bc219408fbdb4d17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1944426acfbbd24897985ed4681c5143ddc311cdc52bcb89c30587955410648
[INFO] running `Command { std: "docker" "start" "-a" "a1944426acfbbd24897985ed4681c5143ddc311cdc52bcb89c30587955410648", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.02s
[INFO] running `Command { std: "docker" "inspect" "a1944426acfbbd24897985ed4681c5143ddc311cdc52bcb89c30587955410648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1944426acfbbd24897985ed4681c5143ddc311cdc52bcb89c30587955410648", kill_on_drop: false }`
[INFO] [stdout] a1944426acfbbd24897985ed4681c5143ddc311cdc52bcb89c30587955410648
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00e9d7b213f74474873422165814fbc3ac91e3f29fcde4fd6907aec1a895a38e
[INFO] running `Command { std: "docker" "start" "-a" "00e9d7b213f74474873422165814fbc3ac91e3f29fcde4fd6907aec1a895a38e", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "00e9d7b213f74474873422165814fbc3ac91e3f29fcde4fd6907aec1a895a38e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e9d7b213f74474873422165814fbc3ac91e3f29fcde4fd6907aec1a895a38e", kill_on_drop: false }`
[INFO] [stdout] 00e9d7b213f74474873422165814fbc3ac91e3f29fcde4fd6907aec1a895a38e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ce2afe927c9c26084cb1d492f5210281fb421ba818b8dac6a77ef422b963147
[INFO] running `Command { std: "docker" "start" "-a" "7ce2afe927c9c26084cb1d492f5210281fb421ba818b8dac6a77ef422b963147", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn-8a5c1b278a10299a)
[INFO] running `Command { std: "docker" "inspect" "7ce2afe927c9c26084cb1d492f5210281fb421ba818b8dac6a77ef422b963147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce2afe927c9c26084cb1d492f5210281fb421ba818b8dac6a77ef422b963147", kill_on_drop: false }`
[INFO] [stdout] 7ce2afe927c9c26084cb1d492f5210281fb421ba818b8dac6a77ef422b963147