[INFO] fetching crate parallel-iterator 0.1.6...
[INFO] testing parallel-iterator-0.1.6 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate parallel-iterator 0.1.6 into /workspace/builds/worker-61/source
[INFO] validating manifest of crates.io crate parallel-iterator 0.1.6 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parallel-iterator 0.1.6
[INFO] finished tweaking crates.io crate parallel-iterator 0.1.6
[INFO] tweaked toml for crates.io crate parallel-iterator 0.1.6 written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate crates.io crate parallel-iterator 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04d1f544cc39d4372ff084528297532df529ec7db66a48cdce8d7c72dce699f3
[INFO] running `Command { std: "docker" "start" "-a" "04d1f544cc39d4372ff084528297532df529ec7db66a48cdce8d7c72dce699f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d1f544cc39d4372ff084528297532df529ec7db66a48cdce8d7c72dce699f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d1f544cc39d4372ff084528297532df529ec7db66a48cdce8d7c72dce699f3", kill_on_drop: false }`
[INFO] [stdout] 04d1f544cc39d4372ff084528297532df529ec7db66a48cdce8d7c72dce699f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d44cc7940a79c0495887debde241b3a7b1906068152b9b85388e02a3f3c1880
[INFO] running `Command { std: "docker" "start" "-a" "3d44cc7940a79c0495887debde241b3a7b1906068152b9b85388e02a3f3c1880", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling parallel-iterator v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.34s
[INFO] running `Command { std: "docker" "inspect" "3d44cc7940a79c0495887debde241b3a7b1906068152b9b85388e02a3f3c1880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d44cc7940a79c0495887debde241b3a7b1906068152b9b85388e02a3f3c1880", kill_on_drop: false }`
[INFO] [stdout] 3d44cc7940a79c0495887debde241b3a7b1906068152b9b85388e02a3f3c1880
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6792de1ba6cfcbd3c336453648c9b08591826b3c7ab7e34dbb71d1d09bd43d6d
[INFO] running `Command { std: "docker" "start" "-a" "6792de1ba6cfcbd3c336453648c9b08591826b3c7ab7e34dbb71d1d09bd43d6d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling parallel-iterator v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/parallel_iterator-de7427dddc6f9f6e)
[INFO] running `Command { std: "docker" "inspect" "6792de1ba6cfcbd3c336453648c9b08591826b3c7ab7e34dbb71d1d09bd43d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6792de1ba6cfcbd3c336453648c9b08591826b3c7ab7e34dbb71d1d09bd43d6d", kill_on_drop: false }`
[INFO] [stdout] 6792de1ba6cfcbd3c336453648c9b08591826b3c7ab7e34dbb71d1d09bd43d6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4353e78eb04a01e2262edccc210148f09a888dcf60371ae9b6d6e5d72f2c33d8
[INFO] running `Command { std: "docker" "start" "-a" "4353e78eb04a01e2262edccc210148f09a888dcf60371ae9b6d6e5d72f2c33d8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/parallel_iterator-de7427dddc6f9f6e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_parallel_vs_sequential ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parallel-iterator
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.99s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4353e78eb04a01e2262edccc210148f09a888dcf60371ae9b6d6e5d72f2c33d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4353e78eb04a01e2262edccc210148f09a888dcf60371ae9b6d6e5d72f2c33d8", kill_on_drop: false }`
[INFO] [stdout] 4353e78eb04a01e2262edccc210148f09a888dcf60371ae9b6d6e5d72f2c33d8