[INFO] fetching crate reductor 0.0.4...
[INFO] testing reductor-0.0.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate reductor 0.0.4 into /workspace/builds/worker-72/source
[INFO] validating manifest of crates.io crate reductor 0.0.4 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 reductor 0.0.4
[INFO] finished tweaking crates.io crate reductor 0.0.4
[INFO] tweaked toml for crates.io crate reductor 0.0.4 written to /workspace/builds/worker-72/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] 51180c0a4471e0efc4d90897626eb38bd87878fe175a206dc876b3b1212db26f
[INFO] running `Command { std: "docker" "start" "-a" "51180c0a4471e0efc4d90897626eb38bd87878fe175a206dc876b3b1212db26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51180c0a4471e0efc4d90897626eb38bd87878fe175a206dc876b3b1212db26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51180c0a4471e0efc4d90897626eb38bd87878fe175a206dc876b3b1212db26f", kill_on_drop: false }`
[INFO] [stdout] 51180c0a4471e0efc4d90897626eb38bd87878fe175a206dc876b3b1212db26f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] 66967ae618650129c05b2491c2a6ad65370503b1804c1a1c3c3f50edf9ce27be
[INFO] running `Command { std: "docker" "start" "-a" "66967ae618650129c05b2491c2a6ad65370503b1804c1a1c3c3f50edf9ce27be", kill_on_drop: false }`
[INFO] [stderr]    Compiling reductor v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "66967ae618650129c05b2491c2a6ad65370503b1804c1a1c3c3f50edf9ce27be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66967ae618650129c05b2491c2a6ad65370503b1804c1a1c3c3f50edf9ce27be", kill_on_drop: false }`
[INFO] [stdout] 66967ae618650129c05b2491c2a6ad65370503b1804c1a1c3c3f50edf9ce27be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] 4a35ca28ea332339a5fe9e7e8702bed487315cae277e5e2c2670d77d2e011cc1
[INFO] running `Command { std: "docker" "start" "-a" "4a35ca28ea332339a5fe9e7e8702bed487315cae277e5e2c2670d77d2e011cc1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling reductor v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "4a35ca28ea332339a5fe9e7e8702bed487315cae277e5e2c2670d77d2e011cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a35ca28ea332339a5fe9e7e8702bed487315cae277e5e2c2670d77d2e011cc1", kill_on_drop: false }`
[INFO] [stdout] 4a35ca28ea332339a5fe9e7e8702bed487315cae277e5e2c2670d77d2e011cc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] f22b959ea316f34aa00ef9f6695c5fb2f01fb3902f083c297eea2cd7812ae336
[INFO] running `Command { std: "docker" "start" "-a" "f22b959ea316f34aa00ef9f6695c5fb2f01fb3902f083c297eea2cd7812ae336", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/reductor-aaffeae2f7dbeb62)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test reductors::product::tests::test_product_borrowed ... ok
[INFO] [stdout] test reductors::sum::tests::test_sum_borrowed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests reductor
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/reductor.rs - reductor::Option<R> (line 68) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/lib.rs - (line 53) ... ok
[INFO] [stdout] test src/reductor.rs - reductor::(R1, R2) (line 101) ... ok
[INFO] [stdout] test src/reductor.rs - reductor::Option<R> (line 73) ... ok
[INFO] [stdout] test src/reductors/count.rs - reductors::count::CountNonZero (line 26) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] test src/reductor.rs - reductor::Reductor (line 4) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f22b959ea316f34aa00ef9f6695c5fb2f01fb3902f083c297eea2cd7812ae336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22b959ea316f34aa00ef9f6695c5fb2f01fb3902f083c297eea2cd7812ae336", kill_on_drop: false }`
[INFO] [stdout] f22b959ea316f34aa00ef9f6695c5fb2f01fb3902f083c297eea2cd7812ae336