[INFO] fetching crate block-chain 0.1.0...
[INFO] testing block-chain-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate block-chain 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate block-chain 0.1.0 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 crates.io crate block-chain 0.1.0
[INFO] finished tweaking crates.io crate block-chain 0.1.0
[INFO] tweaked toml for crates.io crate block-chain 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6f3813cbd9e8242235a50d9b58ed62e9eb263f6efeedafc6303143787faec0bb
[INFO] running `Command { std: "docker" "start" "-a" "6f3813cbd9e8242235a50d9b58ed62e9eb263f6efeedafc6303143787faec0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f3813cbd9e8242235a50d9b58ed62e9eb263f6efeedafc6303143787faec0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3813cbd9e8242235a50d9b58ed62e9eb263f6efeedafc6303143787faec0bb", kill_on_drop: false }`
[INFO] [stdout] 6f3813cbd9e8242235a50d9b58ed62e9eb263f6efeedafc6303143787faec0bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 3b5eee7ed9128c58f912d1f766bbe36d5575f31103ac909594ee9e0d08ae927c
[INFO] running `Command { std: "docker" "start" "-a" "3b5eee7ed9128c58f912d1f766bbe36d5575f31103ac909594ee9e0d08ae927c", kill_on_drop: false }`
[INFO] [stderr]    Compiling block-chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "3b5eee7ed9128c58f912d1f766bbe36d5575f31103ac909594ee9e0d08ae927c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b5eee7ed9128c58f912d1f766bbe36d5575f31103ac909594ee9e0d08ae927c", kill_on_drop: false }`
[INFO] [stdout] 3b5eee7ed9128c58f912d1f766bbe36d5575f31103ac909594ee9e0d08ae927c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 0e6fd5d2691f6fc79e993ba823340e490470572ae969cd2a1c356d35f661a275
[INFO] running `Command { std: "docker" "start" "-a" "0e6fd5d2691f6fc79e993ba823340e490470572ae969cd2a1c356d35f661a275", kill_on_drop: false }`
[INFO] [stderr]    Compiling block-chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "0e6fd5d2691f6fc79e993ba823340e490470572ae969cd2a1c356d35f661a275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e6fd5d2691f6fc79e993ba823340e490470572ae969cd2a1c356d35f661a275", kill_on_drop: false }`
[INFO] [stdout] 0e6fd5d2691f6fc79e993ba823340e490470572ae969cd2a1c356d35f661a275
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 13047ffbe61337077dd163b06c16263404cd98c4b894149941dd3b6953b83da4
[INFO] running `Command { std: "docker" "start" "-a" "13047ffbe61337077dd163b06c16263404cd98c4b894149941dd3b6953b83da4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/block_chain-1018751d4273d8da)
[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] [stderr]    Doc-tests block-chain
[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" "13047ffbe61337077dd163b06c16263404cd98c4b894149941dd3b6953b83da4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13047ffbe61337077dd163b06c16263404cd98c4b894149941dd3b6953b83da4", kill_on_drop: false }`
[INFO] [stdout] 13047ffbe61337077dd163b06c16263404cd98c4b894149941dd3b6953b83da4