[INFO] cloning repository https://github.com/vslynko/chapter20
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vslynko/chapter20" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvslynko%2Fchapter20", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvslynko%2Fchapter20'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0a7c47d816c6890bae037ad58011f9fc68ba7fb
[INFO] testing vslynko/chapter20 against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvslynko%2Fchapter20" "/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/vslynko/chapter20 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vslynko/chapter20
[INFO] finished tweaking git repo https://github.com/vslynko/chapter20
[INFO] tweaked toml for git repo https://github.com/vslynko/chapter20 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/vslynko/chapter20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8e0b4b4f9c7fe4493a4fac1de8f95bf98977b17fae52bd1b5d70c9e80ff325e6
[INFO] running `Command { std: "docker" "start" "-a" "8e0b4b4f9c7fe4493a4fac1de8f95bf98977b17fae52bd1b5d70c9e80ff325e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e0b4b4f9c7fe4493a4fac1de8f95bf98977b17fae52bd1b5d70c9e80ff325e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e0b4b4f9c7fe4493a4fac1de8f95bf98977b17fae52bd1b5d70c9e80ff325e6", kill_on_drop: false }`
[INFO] [stdout] 8e0b4b4f9c7fe4493a4fac1de8f95bf98977b17fae52bd1b5d70c9e80ff325e6
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 976394988f9c960785a959f0d4bae264eeb08b57e6fc3f450e2a95d6ef9b0dee
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "976394988f9c960785a959f0d4bae264eeb08b57e6fc3f450e2a95d6ef9b0dee", kill_on_drop: false }`
[INFO] [stderr]    Compiling chapter20 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "976394988f9c960785a959f0d4bae264eeb08b57e6fc3f450e2a95d6ef9b0dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "976394988f9c960785a959f0d4bae264eeb08b57e6fc3f450e2a95d6ef9b0dee", kill_on_drop: false }`
[INFO] [stdout] 976394988f9c960785a959f0d4bae264eeb08b57e6fc3f450e2a95d6ef9b0dee
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 244bfb5f44d4765a59b6cf2c0b7d4f390e1330ab5522c48a08791f7501c12294
[INFO] running `Command { std: "docker" "start" "-a" "244bfb5f44d4765a59b6cf2c0b7d4f390e1330ab5522c48a08791f7501c12294", kill_on_drop: false }`
[INFO] [stderr]    Compiling chapter20 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "244bfb5f44d4765a59b6cf2c0b7d4f390e1330ab5522c48a08791f7501c12294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "244bfb5f44d4765a59b6cf2c0b7d4f390e1330ab5522c48a08791f7501c12294", kill_on_drop: false }`
[INFO] [stdout] 244bfb5f44d4765a59b6cf2c0b7d4f390e1330ab5522c48a08791f7501c12294
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c3c0d4af750a6b653d2be28026c6c63eba306401c7c9fbc4ce93e3a2d19fe14
[INFO] running `Command { std: "docker" "start" "-a" "7c3c0d4af750a6b653d2be28026c6c63eba306401c7c9fbc4ce93e3a2d19fe14", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chapter20-7dbb740f69efea5a)
[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/main-2f638d199ad091d5)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chapter20
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - ThreadPool::new (line 65) ... ok
[INFO] [stdout] test src/lib.rs - ThreadPool::new (line 60) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.95s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7c3c0d4af750a6b653d2be28026c6c63eba306401c7c9fbc4ce93e3a2d19fe14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c3c0d4af750a6b653d2be28026c6c63eba306401c7c9fbc4ce93e3a2d19fe14", kill_on_drop: false }`
[INFO] [stdout] 7c3c0d4af750a6b653d2be28026c6c63eba306401c7c9fbc4ce93e3a2d19fe14