[INFO] fetching crate an-engine 0.1.0...
[INFO] testing an-engine-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate an-engine 0.1.0 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate an-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 an-engine 0.1.0
[INFO] finished tweaking crates.io crate an-engine 0.1.0
[INFO] tweaked toml for crates.io crate an-engine 0.1.0 written to /workspace/builds/worker-75/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] 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-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 136031daaa1dec6d4bbd9af75f3cc68a6dfa71b8e281a512d3c068fbaa9206af
[INFO] running `Command { std: "docker" "start" "-a" "136031daaa1dec6d4bbd9af75f3cc68a6dfa71b8e281a512d3c068fbaa9206af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "136031daaa1dec6d4bbd9af75f3cc68a6dfa71b8e281a512d3c068fbaa9206af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136031daaa1dec6d4bbd9af75f3cc68a6dfa71b8e281a512d3c068fbaa9206af", kill_on_drop: false }`
[INFO] [stdout] 136031daaa1dec6d4bbd9af75f3cc68a6dfa71b8e281a512d3c068fbaa9206af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] ff1ae46cea32d945c3c429d07a9929223c888e39bf022f11cc483b72b39b6668
[INFO] running `Command { std: "docker" "start" "-a" "ff1ae46cea32d945c3c429d07a9929223c888e39bf022f11cc483b72b39b6668", kill_on_drop: false }`
[INFO] [stderr]    Compiling an-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "ff1ae46cea32d945c3c429d07a9929223c888e39bf022f11cc483b72b39b6668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff1ae46cea32d945c3c429d07a9929223c888e39bf022f11cc483b72b39b6668", kill_on_drop: false }`
[INFO] [stdout] ff1ae46cea32d945c3c429d07a9929223c888e39bf022f11cc483b72b39b6668
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 785ae94532770a5c071f1d408fe5a02cfea20050dbf1fd9648ef832bd7eafb53
[INFO] running `Command { std: "docker" "start" "-a" "785ae94532770a5c071f1d408fe5a02cfea20050dbf1fd9648ef832bd7eafb53", 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] [stderr]    Compiling an-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "785ae94532770a5c071f1d408fe5a02cfea20050dbf1fd9648ef832bd7eafb53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785ae94532770a5c071f1d408fe5a02cfea20050dbf1fd9648ef832bd7eafb53", kill_on_drop: false }`
[INFO] [stdout] 785ae94532770a5c071f1d408fe5a02cfea20050dbf1fd9648ef832bd7eafb53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] f648234b8c069e384404533d093bfd2d350b7e2a25e281fa31cf2c213c76899f
[INFO] running `Command { std: "docker" "start" "-a" "f648234b8c069e384404533d093bfd2d350b7e2a25e281fa31cf2c213c76899f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/an_engine-59fcbe6ce1d2feb1)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests an-engine
[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] [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" "f648234b8c069e384404533d093bfd2d350b7e2a25e281fa31cf2c213c76899f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f648234b8c069e384404533d093bfd2d350b7e2a25e281fa31cf2c213c76899f", kill_on_drop: false }`
[INFO] [stdout] f648234b8c069e384404533d093bfd2d350b7e2a25e281fa31cf2c213c76899f