[INFO] fetching crate summer 0.1.0...
[INFO] testing summer-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate summer 0.1.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate summer 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 summer 0.1.0
[INFO] finished tweaking crates.io crate summer 0.1.0
[INFO] tweaked toml for crates.io crate summer 0.1.0 written to /workspace/builds/worker-20/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] [stderr]     Blocking waiting for file lock on package cache
[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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] ee314e2d289154fb82d68d6aee4c8b3b2d9facf44fbcc7f16a136ec80280b4c1
[INFO] running `Command { std: "docker" "start" "-a" "ee314e2d289154fb82d68d6aee4c8b3b2d9facf44fbcc7f16a136ec80280b4c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee314e2d289154fb82d68d6aee4c8b3b2d9facf44fbcc7f16a136ec80280b4c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee314e2d289154fb82d68d6aee4c8b3b2d9facf44fbcc7f16a136ec80280b4c1", kill_on_drop: false }`
[INFO] [stdout] ee314e2d289154fb82d68d6aee4c8b3b2d9facf44fbcc7f16a136ec80280b4c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] c5425fe41f7524435296217824a28afd2e72ae5128a922bec01cdb516fff92a6
[INFO] running `Command { std: "docker" "start" "-a" "c5425fe41f7524435296217824a28afd2e72ae5128a922bec01cdb516fff92a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling summer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "c5425fe41f7524435296217824a28afd2e72ae5128a922bec01cdb516fff92a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5425fe41f7524435296217824a28afd2e72ae5128a922bec01cdb516fff92a6", kill_on_drop: false }`
[INFO] [stdout] c5425fe41f7524435296217824a28afd2e72ae5128a922bec01cdb516fff92a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] d982e9ba2f06d1777a0d032fe4e0f0397ed21f2e4380b5bdea9b6d5c4a8c4b2c
[INFO] running `Command { std: "docker" "start" "-a" "d982e9ba2f06d1777a0d032fe4e0f0397ed21f2e4380b5bdea9b6d5c4a8c4b2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling summer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "d982e9ba2f06d1777a0d032fe4e0f0397ed21f2e4380b5bdea9b6d5c4a8c4b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d982e9ba2f06d1777a0d032fe4e0f0397ed21f2e4380b5bdea9b6d5c4a8c4b2c", kill_on_drop: false }`
[INFO] [stdout] d982e9ba2f06d1777a0d032fe4e0f0397ed21f2e4380b5bdea9b6d5c4a8c4b2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 4402e312ebe444c2b55da8e495858b2bac19ae6e73284c9267db8ab79f982a27
[INFO] running `Command { std: "docker" "start" "-a" "4402e312ebe444c2b55da8e495858b2bac19ae6e73284c9267db8ab79f982a27", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/summer-e1fdfd3f53efc4e2)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests summer
[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" "4402e312ebe444c2b55da8e495858b2bac19ae6e73284c9267db8ab79f982a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4402e312ebe444c2b55da8e495858b2bac19ae6e73284c9267db8ab79f982a27", kill_on_drop: false }`
[INFO] [stdout] 4402e312ebe444c2b55da8e495858b2bac19ae6e73284c9267db8ab79f982a27