[INFO] fetching crate core2 0.3.1...
[INFO] testing core2-0.3.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate core2 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate core2 0.3.1 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 core2 0.3.1
[INFO] finished tweaking crates.io crate core2 0.3.1
[INFO] tweaked toml for crates.io crate core2 0.3.1 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ebe98caa45567aaaf162e05336875d0e467001b22c8998c511cbe5ce88e4938b
[INFO] running `Command { std: "docker" "start" "-a" "ebe98caa45567aaaf162e05336875d0e467001b22c8998c511cbe5ce88e4938b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebe98caa45567aaaf162e05336875d0e467001b22c8998c511cbe5ce88e4938b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebe98caa45567aaaf162e05336875d0e467001b22c8998c511cbe5ce88e4938b", kill_on_drop: false }`
[INFO] [stdout] ebe98caa45567aaaf162e05336875d0e467001b22c8998c511cbe5ce88e4938b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 5a22668a0b02fe886a4ef62238e8fff4660db029c5b74ca87249d52e792d29d9
[INFO] running `Command { std: "docker" "start" "-a" "5a22668a0b02fe886a4ef62238e8fff4660db029c5b74ca87249d52e792d29d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling core2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "5a22668a0b02fe886a4ef62238e8fff4660db029c5b74ca87249d52e792d29d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a22668a0b02fe886a4ef62238e8fff4660db029c5b74ca87249d52e792d29d9", kill_on_drop: false }`
[INFO] [stdout] 5a22668a0b02fe886a4ef62238e8fff4660db029c5b74ca87249d52e792d29d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 8cbaedc6f36bca098a28ac2d6e073df440c38d54166ceab9bdf5254ddc408022
[INFO] running `Command { std: "docker" "start" "-a" "8cbaedc6f36bca098a28ac2d6e073df440c38d54166ceab9bdf5254ddc408022", kill_on_drop: false }`
[INFO] [stderr]    Compiling core2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "8cbaedc6f36bca098a28ac2d6e073df440c38d54166ceab9bdf5254ddc408022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cbaedc6f36bca098a28ac2d6e073df440c38d54166ceab9bdf5254ddc408022", kill_on_drop: false }`
[INFO] [stdout] 8cbaedc6f36bca098a28ac2d6e073df440c38d54166ceab9bdf5254ddc408022
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 5c3fe14bd151328576e7d7bf384723113394141647eeaddb0aa5d66fcc12b064
[INFO] running `Command { std: "docker" "start" "-a" "5c3fe14bd151328576e7d7bf384723113394141647eeaddb0aa5d66fcc12b064", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/core2-de66f0cddb738034)
[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]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-68ddcaf2406b5196)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test chain_bufread ... ok
[INFO] [stdout] test read_exact_slice ... ok
[INFO] [stdout] test take_eof ... ok
[INFO] [stdout] test read_exact ... ok
[INFO] [stdout] test test_writer_read_from_one_buf ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests core2
[INFO] [stdout] 
[INFO] [stdout] running 50 tests
[INFO] [stdout] test src/io/traits.rs - io::traits::Read (line 26) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::BufRead (line 805) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Chain<T, U>::get_mut (line 970) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Chain<T, U>::into_inner (line 922) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::BufRead (line 825) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read (line 53) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::BufRead::fill_buf (line 865) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::read (line 127) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Chain<T, U>::get_ref (line 944) - compile ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + Send + Sync + 'a>::from (line 146) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::bytes (line 297) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::read_exact (line 205) - compile ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor (line 25) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::from (line 239) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::take (line 374) - compile ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::new (line 82) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::into_inner (line 97) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::chain (line 330) - compile ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + Send + Sync + 'a>::from (line 244) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::get_ref (line 114) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Result (line 26) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::by_ref (line 252) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::write_all (line 574) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::get_mut (line 1166) - compile ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::position (line 151) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::into_inner (line 1114) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Seek (line 714) - compile ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::new (line 285) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write (line 460) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::set_limit (line 1090) - compile ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::get_mut (line 134) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::by_ref (line 680) - compile ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error>::from (line 307) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::kind (line 402) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::get_ref (line 1138) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::write (line 513) - compile ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + Send + Sync>::from (line 183) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::into_inner (line 360) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error>::from (line 267) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::write_fmt (line 622) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::flush (line 539) - compile ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error>::from (line 221) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + Send + Sync + 'a>::from (line 286) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::limit (line 1064) - compile ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::get_ref (line 313) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::ErrorKind::from (line 198) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + 'a>::from (line 113) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::from (line 262) ... ok
[INFO] [stdout] test src/error.rs - error::Error::source (line 40) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::set_position (line 173) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 50 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.33s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5c3fe14bd151328576e7d7bf384723113394141647eeaddb0aa5d66fcc12b064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c3fe14bd151328576e7d7bf384723113394141647eeaddb0aa5d66fcc12b064", kill_on_drop: false }`
[INFO] [stdout] 5c3fe14bd151328576e7d7bf384723113394141647eeaddb0aa5d66fcc12b064