[INFO] fetching crate rack-contracts 0.0.0...
[INFO] testing rack-contracts-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rack-contracts 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rack-contracts 0.0.0 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 rack-contracts 0.0.0
[INFO] finished tweaking crates.io crate rack-contracts 0.0.0
[INFO] tweaked toml for crates.io crate rack-contracts 0.0.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c2495687a60920ef0784f65dc42e2f28760a913e9a3ab8c00036ccc6232137fc
[INFO] running `Command { std: "docker" "start" "-a" "c2495687a60920ef0784f65dc42e2f28760a913e9a3ab8c00036ccc6232137fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2495687a60920ef0784f65dc42e2f28760a913e9a3ab8c00036ccc6232137fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2495687a60920ef0784f65dc42e2f28760a913e9a3ab8c00036ccc6232137fc", kill_on_drop: false }`
[INFO] [stdout] c2495687a60920ef0784f65dc42e2f28760a913e9a3ab8c00036ccc6232137fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 7d0c166fe274234df64cb6c6fca6706e139a936b81c034c635da4cf8121d1ca7
[INFO] running `Command { std: "docker" "start" "-a" "7d0c166fe274234df64cb6c6fca6706e139a936b81c034c635da4cf8121d1ca7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rack-contracts v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "7d0c166fe274234df64cb6c6fca6706e139a936b81c034c635da4cf8121d1ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d0c166fe274234df64cb6c6fca6706e139a936b81c034c635da4cf8121d1ca7", kill_on_drop: false }`
[INFO] [stdout] 7d0c166fe274234df64cb6c6fca6706e139a936b81c034c635da4cf8121d1ca7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e770d7c9bf3b880afbb70ab5e06a215894e4cc801b68b63b60f346844dc28845
[INFO] running `Command { std: "docker" "start" "-a" "e770d7c9bf3b880afbb70ab5e06a215894e4cc801b68b63b60f346844dc28845", kill_on_drop: false }`
[INFO] [stderr]    Compiling rack-contracts v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "e770d7c9bf3b880afbb70ab5e06a215894e4cc801b68b63b60f346844dc28845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e770d7c9bf3b880afbb70ab5e06a215894e4cc801b68b63b60f346844dc28845", kill_on_drop: false }`
[INFO] [stdout] e770d7c9bf3b880afbb70ab5e06a215894e4cc801b68b63b60f346844dc28845
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 3178638e022f30f0a4699541a1e243f52ebddc43709a54d4c93ca78907e3c1b4
[INFO] running `Command { std: "docker" "start" "-a" "3178638e022f30f0a4699541a1e243f52ebddc43709a54d4c93ca78907e3c1b4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rack_contracts-e2b913bacef14f0d)
[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 rack-contracts
[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" "3178638e022f30f0a4699541a1e243f52ebddc43709a54d4c93ca78907e3c1b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3178638e022f30f0a4699541a1e243f52ebddc43709a54d4c93ca78907e3c1b4", kill_on_drop: false }`
[INFO] [stdout] 3178638e022f30f0a4699541a1e243f52ebddc43709a54d4c93ca78907e3c1b4