[INFO] fetching crate tt-engine 0.1.0...
[INFO] testing tt-engine-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tt-engine 0.1.0 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate tt-engine 0.1.0 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 crates.io crate tt-engine 0.1.0
[INFO] finished tweaking crates.io crate tt-engine 0.1.0
[INFO] tweaked toml for crates.io crate tt-engine 0.1.0 written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] fe855265b03dfe461a9da7d502695ca50cf9279cc374ef222202e1c306ee54a3
[INFO] running `Command { std: "docker" "start" "-a" "fe855265b03dfe461a9da7d502695ca50cf9279cc374ef222202e1c306ee54a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe855265b03dfe461a9da7d502695ca50cf9279cc374ef222202e1c306ee54a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe855265b03dfe461a9da7d502695ca50cf9279cc374ef222202e1c306ee54a3", kill_on_drop: false }`
[INFO] [stdout] fe855265b03dfe461a9da7d502695ca50cf9279cc374ef222202e1c306ee54a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 1412d3527a9c24c5e7e476b4cff2814fc68af1f1e72a0a61bf33ba114fe8cd31
[INFO] running `Command { std: "docker" "start" "-a" "1412d3527a9c24c5e7e476b4cff2814fc68af1f1e72a0a61bf33ba114fe8cd31", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling ruc v0.4.1
[INFO] [stderr]    Compiling tt-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.78s
[INFO] running `Command { std: "docker" "inspect" "1412d3527a9c24c5e7e476b4cff2814fc68af1f1e72a0a61bf33ba114fe8cd31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1412d3527a9c24c5e7e476b4cff2814fc68af1f1e72a0a61bf33ba114fe8cd31", kill_on_drop: false }`
[INFO] [stdout] 1412d3527a9c24c5e7e476b4cff2814fc68af1f1e72a0a61bf33ba114fe8cd31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 35a0e549a63000f9fc60960b4e3078afc312c7a82857c6f5435fa2188881181c
[INFO] running `Command { std: "docker" "start" "-a" "35a0e549a63000f9fc60960b4e3078afc312c7a82857c6f5435fa2188881181c", kill_on_drop: false }`
[INFO] [stderr]    Compiling tt-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "35a0e549a63000f9fc60960b4e3078afc312c7a82857c6f5435fa2188881181c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35a0e549a63000f9fc60960b4e3078afc312c7a82857c6f5435fa2188881181c", kill_on_drop: false }`
[INFO] [stdout] 35a0e549a63000f9fc60960b4e3078afc312c7a82857c6f5435fa2188881181c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 43bac078985990f8fa2956672ae1930e5ad8fb6c8aebc853e13e918a17f9b93e
[INFO] running `Command { std: "docker" "start" "-a" "43bac078985990f8fa2956672ae1930e5ad8fb6c8aebc853e13e918a17f9b93e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tt_engine-6cd6bdabc0db0e72)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tt-engine
[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" "43bac078985990f8fa2956672ae1930e5ad8fb6c8aebc853e13e918a17f9b93e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43bac078985990f8fa2956672ae1930e5ad8fb6c8aebc853e13e918a17f9b93e", kill_on_drop: false }`
[INFO] [stdout] 43bac078985990f8fa2956672ae1930e5ad8fb6c8aebc853e13e918a17f9b93e