[INFO] cloning repository https://github.com/chelo84/playing-with-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chelo84/playing-with-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchelo84%2Fplaying-with-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchelo84%2Fplaying-with-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfea8fb7d109b8c5cd9d866ecbb85101951af2b9
[INFO] testing chelo84/playing-with-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchelo84%2Fplaying-with-rust" "/workspace/builds/worker-30/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-30/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chelo84/playing-with-rust 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/chelo84/playing-with-rust
[INFO] finished tweaking git repo https://github.com/chelo84/playing-with-rust
[INFO] tweaked toml for git repo https://github.com/chelo84/playing-with-rust written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] crate git repo https://github.com/chelo84/playing-with-rust 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-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 7e6098ddf5997b6f7a4941a8d5ed6795a962562ada0bf23f7dd5be50d3d78f95
[INFO] running `Command { std: "docker" "start" "-a" "7e6098ddf5997b6f7a4941a8d5ed6795a962562ada0bf23f7dd5be50d3d78f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e6098ddf5997b6f7a4941a8d5ed6795a962562ada0bf23f7dd5be50d3d78f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e6098ddf5997b6f7a4941a8d5ed6795a962562ada0bf23f7dd5be50d3d78f95", kill_on_drop: false }`
[INFO] [stdout] 7e6098ddf5997b6f7a4941a8d5ed6795a962562ada0bf23f7dd5be50d3d78f95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] a5291c9e7c83b7ebbc7e3f873f59d0f018552e95126529a0aa885ffff509725b
[INFO] running `Command { std: "docker" "start" "-a" "a5291c9e7c83b7ebbc7e3f873f59d0f018552e95126529a0aa885ffff509725b", kill_on_drop: false }`
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling playing-with-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "a5291c9e7c83b7ebbc7e3f873f59d0f018552e95126529a0aa885ffff509725b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5291c9e7c83b7ebbc7e3f873f59d0f018552e95126529a0aa885ffff509725b", kill_on_drop: false }`
[INFO] [stdout] a5291c9e7c83b7ebbc7e3f873f59d0f018552e95126529a0aa885ffff509725b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 7dcb0e1f145c47e24feb38b9f0ebf53edc6ef7d18e5ce438f3a5f35df562f6f2
[INFO] running `Command { std: "docker" "start" "-a" "7dcb0e1f145c47e24feb38b9f0ebf53edc6ef7d18e5ce438f3a5f35df562f6f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling playing-with-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "7dcb0e1f145c47e24feb38b9f0ebf53edc6ef7d18e5ce438f3a5f35df562f6f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dcb0e1f145c47e24feb38b9f0ebf53edc6ef7d18e5ce438f3a5f35df562f6f2", kill_on_drop: false }`
[INFO] [stdout] 7dcb0e1f145c47e24feb38b9f0ebf53edc6ef7d18e5ce438f3a5f35df562f6f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] f20023eb23cd9527c4c8de8bf2f49e1ccf6afe5a79454436f43c8732f1457b25
[INFO] running `Command { std: "docker" "start" "-a" "f20023eb23cd9527c4c8de8bf2f49e1ccf6afe5a79454436f43c8732f1457b25", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/playing_with_rust-44ba70a2c7ea16f0)
[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" "f20023eb23cd9527c4c8de8bf2f49e1ccf6afe5a79454436f43c8732f1457b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20023eb23cd9527c4c8de8bf2f49e1ccf6afe5a79454436f43c8732f1457b25", kill_on_drop: false }`
[INFO] [stdout] f20023eb23cd9527c4c8de8bf2f49e1ccf6afe5a79454436f43c8732f1457b25