[INFO] cloning repository https://github.com/alvanklaveren/MyFirstRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alvanklaveren/MyFirstRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falvanklaveren%2FMyFirstRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falvanklaveren%2FMyFirstRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 454e5824b4f72ac64264e3e1df6af51d0ea58571
[INFO] testing alvanklaveren/MyFirstRust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falvanklaveren%2FMyFirstRust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alvanklaveren/MyFirstRust 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/alvanklaveren/MyFirstRust
[INFO] finished tweaking git repo https://github.com/alvanklaveren/MyFirstRust
[INFO] tweaked toml for git repo https://github.com/alvanklaveren/MyFirstRust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/alvanklaveren/MyFirstRust 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b8dc6b954b6e2057f873f96847949b649573461d5a8d81c75e2b5a4b778fec8e
[INFO] running `Command { std: "docker" "start" "-a" "b8dc6b954b6e2057f873f96847949b649573461d5a8d81c75e2b5a4b778fec8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8dc6b954b6e2057f873f96847949b649573461d5a8d81c75e2b5a4b778fec8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8dc6b954b6e2057f873f96847949b649573461d5a8d81c75e2b5a4b778fec8e", kill_on_drop: false }`
[INFO] [stdout] b8dc6b954b6e2057f873f96847949b649573461d5a8d81c75e2b5a4b778fec8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] e6d3171441364a29923bad6e42258e8b157dff19edcfbbc659f0e7b2daf0b282
[INFO] running `Command { std: "docker" "start" "-a" "e6d3171441364a29923bad6e42258e8b157dff19edcfbbc659f0e7b2daf0b282", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling my-first-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "e6d3171441364a29923bad6e42258e8b157dff19edcfbbc659f0e7b2daf0b282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6d3171441364a29923bad6e42258e8b157dff19edcfbbc659f0e7b2daf0b282", kill_on_drop: false }`
[INFO] [stdout] e6d3171441364a29923bad6e42258e8b157dff19edcfbbc659f0e7b2daf0b282
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] cb50cc4065c54d909cbc51bedc0f8a8b5b8836b2300953c7efb4534e04519220
[INFO] running `Command { std: "docker" "start" "-a" "cb50cc4065c54d909cbc51bedc0f8a8b5b8836b2300953c7efb4534e04519220", kill_on_drop: false }`
[INFO] [stderr]    Compiling my-first-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "cb50cc4065c54d909cbc51bedc0f8a8b5b8836b2300953c7efb4534e04519220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb50cc4065c54d909cbc51bedc0f8a8b5b8836b2300953c7efb4534e04519220", kill_on_drop: false }`
[INFO] [stdout] cb50cc4065c54d909cbc51bedc0f8a8b5b8836b2300953c7efb4534e04519220
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 29f0e8fed9f2fdf18e1449a60261df48028f9d8bec9e57400fa419ae0c39ccdc
[INFO] running `Command { std: "docker" "start" "-a" "29f0e8fed9f2fdf18e1449a60261df48028f9d8bec9e57400fa419ae0c39ccdc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/my_first_rust-1892500ceb8bf0a9)
[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" "29f0e8fed9f2fdf18e1449a60261df48028f9d8bec9e57400fa419ae0c39ccdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29f0e8fed9f2fdf18e1449a60261df48028f9d8bec9e57400fa419ae0c39ccdc", kill_on_drop: false }`
[INFO] [stdout] 29f0e8fed9f2fdf18e1449a60261df48028f9d8bec9e57400fa419ae0c39ccdc