[INFO] cloning repository https://github.com/TimCulleton/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TimCulleton/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimCulleton%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimCulleton%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83bd3a53982125bcafc68bd246d0d0d47b5c4223
[INFO] testing TimCulleton/rust-playground against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimCulleton%2Frust-playground" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TimCulleton/rust-playground 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/TimCulleton/rust-playground
[INFO] finished tweaking git repo https://github.com/TimCulleton/rust-playground
[INFO] tweaked toml for git repo https://github.com/TimCulleton/rust-playground written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/TimCulleton/rust-playground 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 3c9a529368f24da03dcb3dc5a17d6f829185980d76b4f3aea00d5474cb96b77b
[INFO] running `Command { std: "docker" "start" "-a" "3c9a529368f24da03dcb3dc5a17d6f829185980d76b4f3aea00d5474cb96b77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c9a529368f24da03dcb3dc5a17d6f829185980d76b4f3aea00d5474cb96b77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c9a529368f24da03dcb3dc5a17d6f829185980d76b4f3aea00d5474cb96b77b", kill_on_drop: false }`
[INFO] [stdout] 3c9a529368f24da03dcb3dc5a17d6f829185980d76b4f3aea00d5474cb96b77b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] a02e2b0ca53cde4c093f69f8082fe8822da24a5d0b88cdbc862f91b8f3fbb251
[INFO] running `Command { std: "docker" "start" "-a" "a02e2b0ca53cde4c093f69f8082fe8822da24a5d0b88cdbc862f91b8f3fbb251", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "a02e2b0ca53cde4c093f69f8082fe8822da24a5d0b88cdbc862f91b8f3fbb251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a02e2b0ca53cde4c093f69f8082fe8822da24a5d0b88cdbc862f91b8f3fbb251", kill_on_drop: false }`
[INFO] [stdout] a02e2b0ca53cde4c093f69f8082fe8822da24a5d0b88cdbc862f91b8f3fbb251
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 96dc5ae504c43b734c3bd65b1ba26c9862b46cb2e093070c44a661752895e368
[INFO] running `Command { std: "docker" "start" "-a" "96dc5ae504c43b734c3bd65b1ba26c9862b46cb2e093070c44a661752895e368", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "96dc5ae504c43b734c3bd65b1ba26c9862b46cb2e093070c44a661752895e368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96dc5ae504c43b734c3bd65b1ba26c9862b46cb2e093070c44a661752895e368", kill_on_drop: false }`
[INFO] [stdout] 96dc5ae504c43b734c3bd65b1ba26c9862b46cb2e093070c44a661752895e368
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] cabedfd45639541cf6e0bac61d92bd3e6ab33c127056757d4bd2bd799f918621
[INFO] running `Command { std: "docker" "start" "-a" "cabedfd45639541cf6e0bac61d92bd3e6ab33c127056757d4bd2bd799f918621", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_playground-aa2be53c27fe9d5f)
[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" "cabedfd45639541cf6e0bac61d92bd3e6ab33c127056757d4bd2bd799f918621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cabedfd45639541cf6e0bac61d92bd3e6ab33c127056757d4bd2bd799f918621", kill_on_drop: false }`
[INFO] [stdout] cabedfd45639541cf6e0bac61d92bd3e6ab33c127056757d4bd2bd799f918621