[INFO] cloning repository https://github.com/jpfielding/rust_crash_course
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jpfielding/rust_crash_course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpfielding%2Frust_crash_course", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpfielding%2Frust_crash_course'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1154217c3fe767ab142b211be2cfabb9e2793c4a
[INFO] testing jpfielding/rust_crash_course against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpfielding%2Frust_crash_course" "/workspace/builds/worker-53/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-53/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jpfielding/rust_crash_course on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jpfielding/rust_crash_course
[INFO] finished tweaking git repo https://github.com/jpfielding/rust_crash_course
[INFO] tweaked toml for git repo https://github.com/jpfielding/rust_crash_course written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] crate git repo https://github.com/jpfielding/rust_crash_course already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35483bb0ba545c960bcd765d859c96c45fbfc23e2599f7e31cd056ed613577dc
[INFO] running `Command { std: "docker" "start" "-a" "35483bb0ba545c960bcd765d859c96c45fbfc23e2599f7e31cd056ed613577dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35483bb0ba545c960bcd765d859c96c45fbfc23e2599f7e31cd056ed613577dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35483bb0ba545c960bcd765d859c96c45fbfc23e2599f7e31cd056ed613577dc", kill_on_drop: false }`
[INFO] [stdout] 35483bb0ba545c960bcd765d859c96c45fbfc23e2599f7e31cd056ed613577dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df0e454acc724f03e7794a6c06c34b036eed263b22694ce546dd154a0358cae3
[INFO] running `Command { std: "docker" "start" "-a" "df0e454acc724f03e7794a6c06c34b036eed263b22694ce546dd154a0358cae3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.36s
[INFO] running `Command { std: "docker" "inspect" "df0e454acc724f03e7794a6c06c34b036eed263b22694ce546dd154a0358cae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df0e454acc724f03e7794a6c06c34b036eed263b22694ce546dd154a0358cae3", kill_on_drop: false }`
[INFO] [stdout] df0e454acc724f03e7794a6c06c34b036eed263b22694ce546dd154a0358cae3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9e0bcbd0ef5080518b517d7914249d277c84c0ddb8a4081d5aff180939dc472
[INFO] running `Command { std: "docker" "start" "-a" "d9e0bcbd0ef5080518b517d7914249d277c84c0ddb8a4081d5aff180939dc472", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "d9e0bcbd0ef5080518b517d7914249d277c84c0ddb8a4081d5aff180939dc472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e0bcbd0ef5080518b517d7914249d277c84c0ddb8a4081d5aff180939dc472", kill_on_drop: false }`
[INFO] [stdout] d9e0bcbd0ef5080518b517d7914249d277c84c0ddb8a4081d5aff180939dc472
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dce2ef4e84ed3831c51cc181b54dc2659c45caaeea494cc83f52e1c77f8d2793
[INFO] running `Command { std: "docker" "start" "-a" "dce2ef4e84ed3831c51cc181b54dc2659c45caaeea494cc83f52e1c77f8d2793", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_hello-6db26c0a02c159b3)
[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" "dce2ef4e84ed3831c51cc181b54dc2659c45caaeea494cc83f52e1c77f8d2793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce2ef4e84ed3831c51cc181b54dc2659c45caaeea494cc83f52e1c77f8d2793", kill_on_drop: false }`
[INFO] [stdout] dce2ef4e84ed3831c51cc181b54dc2659c45caaeea494cc83f52e1c77f8d2793