[INFO] fetching crate internal-iterator 0.1.2...
[INFO] testing internal-iterator-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate internal-iterator 0.1.2 into /workspace/builds/worker-51/source
[INFO] validating manifest of crates.io crate internal-iterator 0.1.2 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 internal-iterator 0.1.2
[INFO] finished tweaking crates.io crate internal-iterator 0.1.2
[INFO] tweaked toml for crates.io crate internal-iterator 0.1.2 written to /workspace/builds/worker-51/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 630a0156e1113a77687bff969a9ce1d3084fc15c2647742eec187560b2a4507f
[INFO] running `Command { std: "docker" "start" "-a" "630a0156e1113a77687bff969a9ce1d3084fc15c2647742eec187560b2a4507f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "630a0156e1113a77687bff969a9ce1d3084fc15c2647742eec187560b2a4507f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "630a0156e1113a77687bff969a9ce1d3084fc15c2647742eec187560b2a4507f", kill_on_drop: false }`
[INFO] [stdout] 630a0156e1113a77687bff969a9ce1d3084fc15c2647742eec187560b2a4507f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 97ff3801292b7131940c5efc7a8a36fd6acf19682d1970a1aa9e61a02a7856f9
[INFO] running `Command { std: "docker" "start" "-a" "97ff3801292b7131940c5efc7a8a36fd6acf19682d1970a1aa9e61a02a7856f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling internal-iterator v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "97ff3801292b7131940c5efc7a8a36fd6acf19682d1970a1aa9e61a02a7856f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ff3801292b7131940c5efc7a8a36fd6acf19682d1970a1aa9e61a02a7856f9", kill_on_drop: false }`
[INFO] [stdout] 97ff3801292b7131940c5efc7a8a36fd6acf19682d1970a1aa9e61a02a7856f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 59b6cdd382afa0745e6753c83eb9d67686706cc13fa6aa70e0046461261ae37f
[INFO] running `Command { std: "docker" "start" "-a" "59b6cdd382afa0745e6753c83eb9d67686706cc13fa6aa70e0046461261ae37f", kill_on_drop: false }`
[INFO] [stderr]    Compiling internal-iterator v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "59b6cdd382afa0745e6753c83eb9d67686706cc13fa6aa70e0046461261ae37f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b6cdd382afa0745e6753c83eb9d67686706cc13fa6aa70e0046461261ae37f", kill_on_drop: false }`
[INFO] [stdout] 59b6cdd382afa0745e6753c83eb9d67686706cc13fa6aa70e0046461261ae37f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 4c33b53078d75686de10fb7c447ae4468fa04c14b69f909728ac8bb26afe32da
[INFO] running `Command { std: "docker" "start" "-a" "4c33b53078d75686de10fb7c447ae4468fa04c14b69f909728ac8bb26afe32da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/internal_iterator-bf717929e6ded1ce)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::readme_example ... ok
[INFO] [stdout] test tests::take_short_circuit ... ok
[INFO] [stdout] test tests::take_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests internal-iterator
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test src/lib.rs - InternalIterator::nth (line 578) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::find_map (line 148) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::min (line 521) ... ok
[INFO] [stdout] test src/lib.rs - IteratorExt::into_internal (line 702) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::all (line 165) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::count (line 273) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::find (line 342) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::flat_map (line 372) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::position (line 596) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::any (line 180) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::map (line 458) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::next (line 567) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::enumerate (line 290) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::chain (line 196) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::max (line 479) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::filter (line 304) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::last (line 442) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::copied (line 255) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::cloned (line 216) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::take (line 643) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::filter_map (line 321) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::collect (line 234) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::skip (line 623) ... ok
[INFO] [stdout] test src/lib.rs - InternalIterator::inspect (line 416) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4c33b53078d75686de10fb7c447ae4468fa04c14b69f909728ac8bb26afe32da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c33b53078d75686de10fb7c447ae4468fa04c14b69f909728ac8bb26afe32da", kill_on_drop: false }`
[INFO] [stdout] 4c33b53078d75686de10fb7c447ae4468fa04c14b69f909728ac8bb26afe32da