[INFO] fetching crate bare-io 0.2.1...
[INFO] testing bare-io-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate bare-io 0.2.1 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate bare-io 0.2.1 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 bare-io 0.2.1
[INFO] finished tweaking crates.io crate bare-io 0.2.1
[INFO] tweaked toml for crates.io crate bare-io 0.2.1 written to /workspace/builds/worker-26/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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] e3a7c9c9d5fda224e1fa5eee85aa696e40e498609c8726a65c5f6028e4d1a749
[INFO] running `Command { std: "docker" "start" "-a" "e3a7c9c9d5fda224e1fa5eee85aa696e40e498609c8726a65c5f6028e4d1a749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3a7c9c9d5fda224e1fa5eee85aa696e40e498609c8726a65c5f6028e4d1a749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3a7c9c9d5fda224e1fa5eee85aa696e40e498609c8726a65c5f6028e4d1a749", kill_on_drop: false }`
[INFO] [stdout] e3a7c9c9d5fda224e1fa5eee85aa696e40e498609c8726a65c5f6028e4d1a749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 4a55d69c7a1130ffb33ddeae3e21db346639505efe8f0a032c53369d6f119ef6
[INFO] running `Command { std: "docker" "start" "-a" "4a55d69c7a1130ffb33ddeae3e21db346639505efe8f0a032c53369d6f119ef6", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bare-io v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "4a55d69c7a1130ffb33ddeae3e21db346639505efe8f0a032c53369d6f119ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a55d69c7a1130ffb33ddeae3e21db346639505efe8f0a032c53369d6f119ef6", kill_on_drop: false }`
[INFO] [stdout] 4a55d69c7a1130ffb33ddeae3e21db346639505efe8f0a032c53369d6f119ef6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] d70b2730c8465d07ccad66c05d7b74d847bead73a3fdb1b1b74145c924203ca6
[INFO] running `Command { std: "docker" "start" "-a" "d70b2730c8465d07ccad66c05d7b74d847bead73a3fdb1b1b74145c924203ca6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bare-io v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "d70b2730c8465d07ccad66c05d7b74d847bead73a3fdb1b1b74145c924203ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d70b2730c8465d07ccad66c05d7b74d847bead73a3fdb1b1b74145c924203ca6", kill_on_drop: false }`
[INFO] [stdout] d70b2730c8465d07ccad66c05d7b74d847bead73a3fdb1b1b74145c924203ca6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] ef10a74c2efb632c3f378b6601be8bc7b92e006cdff8599c1b0c6f0a731227fd
[INFO] running `Command { std: "docker" "start" "-a" "ef10a74c2efb632c3f378b6601be8bc7b92e006cdff8599c1b0c6f0a731227fd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bare_io-d09a4f6f0ac1fd96)
[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-0feb30b5a0dc4930)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test chain_bufread ... ok
[INFO] [stdout] test read_exact ... ok
[INFO] [stdout] test read_exact_slice ... ok
[INFO] [stdout] test take_eof ... 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 bare-io
[INFO] [stdout] 
[INFO] [stdout] running 39 tests
[INFO] [stdout] test src/cursor.rs - cursor::Cursor (line 25) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::BufRead (line 825) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Write::write_all (line 574) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Chain<T, U>::into_inner (line 922) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Write::write (line 513) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Write::flush (line 539) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::BufRead (line 805) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Write (line 460) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Read::read (line 127) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Write::by_ref (line 680) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Read::bytes (line 297) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Take<T>::into_inner (line 1114) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Seek (line 714) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::BufRead::fill_buf (line 865) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Take<T>::limit (line 1064) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Take<T>::get_mut (line 1166) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Chain<T, U>::get_mut (line 970) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Read (line 26) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Chain<T, U>::get_ref (line 944) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Take<T>::set_limit (line 1090) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Read::chain (line 330) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Read (line 53) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Read::by_ref (line 252) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Read::read_exact (line 205) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Write::write_fmt (line 622) - compile ... ok
[INFO] [stdout] test src/traits.rs - traits::Take<T>::get_ref (line 1138) - compile ... ok
[INFO] [stdout] test src/cursor.rs - cursor::Cursor<T>::get_ref (line 113) ... ok
[INFO] [stdout] test src/cursor.rs - cursor::Cursor<T>::into_inner (line 96) ... ok
[INFO] [stdout] test src/traits.rs - traits::Read::take (line 374) - compile ... ok
[INFO] [stdout] test src/error.rs - error::Error::from (line 187) ... ok
[INFO] [stdout] test src/cursor.rs - cursor::Cursor<T>::new (line 81) ... ok
[INFO] [stdout] test src/cursor.rs - cursor::Cursor<T>::position (line 150) ... ok
[INFO] [stdout] test src/error.rs - error::Error::get_ref (line 240) ... ok
[INFO] [stdout] test src/cursor.rs - cursor::Cursor<T>::get_mut (line 133) ... ok
[INFO] [stdout] test src/cursor.rs - cursor::Cursor<T>::set_position (line 173) ... ok
[INFO] [stdout] test src/error.rs - error::Result (line 26) ... ok
[INFO] [stdout] test src/error.rs - error::Error::into_inner (line 274) ... ok
[INFO] [stdout] test src/error.rs - error::Error::kind (line 303) ... ok
[INFO] [stdout] test src/error.rs - error::Error::new (line 212) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ef10a74c2efb632c3f378b6601be8bc7b92e006cdff8599c1b0c6f0a731227fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef10a74c2efb632c3f378b6601be8bc7b92e006cdff8599c1b0c6f0a731227fd", kill_on_drop: false }`
[INFO] [stdout] ef10a74c2efb632c3f378b6601be8bc7b92e006cdff8599c1b0c6f0a731227fd