[INFO] cloning repository https://github.com/euler1337/rust_concepts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/euler1337/rust_concepts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuler1337%2Frust_concepts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuler1337%2Frust_concepts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3f6922ec977021e3f98d697698864272fd3647d
[INFO] testing euler1337/rust_concepts against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuler1337%2Frust_concepts" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/euler1337/rust_concepts on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/euler1337/rust_concepts
[INFO] finished tweaking git repo https://github.com/euler1337/rust_concepts
[INFO] tweaked toml for git repo https://github.com/euler1337/rust_concepts written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/euler1337/rust_concepts already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 102ee7f5d9007f7753c617eadaad7b7a8f9bc6e43bc0d5705923ff826f655ae4
[INFO] running `Command { std: "docker" "start" "-a" "102ee7f5d9007f7753c617eadaad7b7a8f9bc6e43bc0d5705923ff826f655ae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "102ee7f5d9007f7753c617eadaad7b7a8f9bc6e43bc0d5705923ff826f655ae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "102ee7f5d9007f7753c617eadaad7b7a8f9bc6e43bc0d5705923ff826f655ae4", kill_on_drop: false }`
[INFO] [stdout] 102ee7f5d9007f7753c617eadaad7b7a8f9bc6e43bc0d5705923ff826f655ae4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 401a47861fb916195557d1108c29ac59b6ec10bb53f912090c0f100c0df8a027
[INFO] running `Command { std: "docker" "start" "-a" "401a47861fb916195557d1108c29ac59b6ec10bb53f912090c0f100c0df8a027", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_concepts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.06s
[INFO] running `Command { std: "docker" "inspect" "401a47861fb916195557d1108c29ac59b6ec10bb53f912090c0f100c0df8a027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "401a47861fb916195557d1108c29ac59b6ec10bb53f912090c0f100c0df8a027", kill_on_drop: false }`
[INFO] [stdout] 401a47861fb916195557d1108c29ac59b6ec10bb53f912090c0f100c0df8a027
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b247b2dfb4c6508befde8a907d5b82d7f5ee6d2f98964049783ef5a313986692
[INFO] running `Command { std: "docker" "start" "-a" "b247b2dfb4c6508befde8a907d5b82d7f5ee6d2f98964049783ef5a313986692", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_concepts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.12s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_concepts-289817f9ec971049)
[INFO] running `Command { std: "docker" "inspect" "b247b2dfb4c6508befde8a907d5b82d7f5ee6d2f98964049783ef5a313986692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b247b2dfb4c6508befde8a907d5b82d7f5ee6d2f98964049783ef5a313986692", kill_on_drop: false }`
[INFO] [stdout] b247b2dfb4c6508befde8a907d5b82d7f5ee6d2f98964049783ef5a313986692
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 558e66b036b8e3c163df7acc499545922d3e8b1a43b505373a02b0e8c19d5ee5
[INFO] running `Command { std: "docker" "start" "-a" "558e66b036b8e3c163df7acc499545922d3e8b1a43b505373a02b0e8c19d5ee5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 26.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_concepts-289817f9ec971049)
[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" "558e66b036b8e3c163df7acc499545922d3e8b1a43b505373a02b0e8c19d5ee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "558e66b036b8e3c163df7acc499545922d3e8b1a43b505373a02b0e8c19d5ee5", kill_on_drop: false }`
[INFO] [stdout] 558e66b036b8e3c163df7acc499545922d3e8b1a43b505373a02b0e8c19d5ee5