[INFO] cloning repository https://github.com/bdav87/rustbook-concurrency
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bdav87/rustbook-concurrency" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbdav87%2Frustbook-concurrency", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbdav87%2Frustbook-concurrency'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 677eb3468c9095355ec644b4ab07d8ba0428efe2
[INFO] testing bdav87/rustbook-concurrency 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%2Fbdav87%2Frustbook-concurrency" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bdav87/rustbook-concurrency 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/bdav87/rustbook-concurrency
[INFO] finished tweaking git repo https://github.com/bdav87/rustbook-concurrency
[INFO] tweaked toml for git repo https://github.com/bdav87/rustbook-concurrency written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/bdav87/rustbook-concurrency 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 553fea2c677b816b3f1eaa6c57bb6adf7907cab5f7a61affcfce18c642fd5978
[INFO] running `Command { std: "docker" "start" "-a" "553fea2c677b816b3f1eaa6c57bb6adf7907cab5f7a61affcfce18c642fd5978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "553fea2c677b816b3f1eaa6c57bb6adf7907cab5f7a61affcfce18c642fd5978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "553fea2c677b816b3f1eaa6c57bb6adf7907cab5f7a61affcfce18c642fd5978", kill_on_drop: false }`
[INFO] [stdout] 553fea2c677b816b3f1eaa6c57bb6adf7907cab5f7a61affcfce18c642fd5978
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 58438904783c65000582a4bbef91eeef71a5b82de49577a9b5d70d37b2cc7a1a
[INFO] running `Command { std: "docker" "start" "-a" "58438904783c65000582a4bbef91eeef71a5b82de49577a9b5d70d37b2cc7a1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling fearlessconcurrency v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "58438904783c65000582a4bbef91eeef71a5b82de49577a9b5d70d37b2cc7a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58438904783c65000582a4bbef91eeef71a5b82de49577a9b5d70d37b2cc7a1a", kill_on_drop: false }`
[INFO] [stdout] 58438904783c65000582a4bbef91eeef71a5b82de49577a9b5d70d37b2cc7a1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 46a07551fa98a76bf5cfa205de9a22b9e1b675d56899e10082cd1add698a9a30
[INFO] running `Command { std: "docker" "start" "-a" "46a07551fa98a76bf5cfa205de9a22b9e1b675d56899e10082cd1add698a9a30", kill_on_drop: false }`
[INFO] [stderr]    Compiling fearlessconcurrency v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "46a07551fa98a76bf5cfa205de9a22b9e1b675d56899e10082cd1add698a9a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a07551fa98a76bf5cfa205de9a22b9e1b675d56899e10082cd1add698a9a30", kill_on_drop: false }`
[INFO] [stdout] 46a07551fa98a76bf5cfa205de9a22b9e1b675d56899e10082cd1add698a9a30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 218a2bb06c1a9e7b38b898ebbb19a4040bf52baef68356acc91b0d321674cf3a
[INFO] running `Command { std: "docker" "start" "-a" "218a2bb06c1a9e7b38b898ebbb19a4040bf52baef68356acc91b0d321674cf3a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fearlessconcurrency-dd43cb2cc4e6cb34)
[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" "218a2bb06c1a9e7b38b898ebbb19a4040bf52baef68356acc91b0d321674cf3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "218a2bb06c1a9e7b38b898ebbb19a4040bf52baef68356acc91b0d321674cf3a", kill_on_drop: false }`
[INFO] [stdout] 218a2bb06c1a9e7b38b898ebbb19a4040bf52baef68356acc91b0d321674cf3a