[INFO] fetching crate io_operations 0.2.0...
[INFO] testing io_operations-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate io_operations 0.2.0 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate io_operations 0.2.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io_operations 0.2.0
[INFO] finished tweaking crates.io crate io_operations 0.2.0
[INFO] tweaked toml for crates.io crate io_operations 0.2.0 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ba1a8ccafa5f4dc78585a9b8ef45ab51876f1c942fd0bc99482e215cd427723
[INFO] running `Command { std: "docker" "start" "-a" "4ba1a8ccafa5f4dc78585a9b8ef45ab51876f1c942fd0bc99482e215cd427723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ba1a8ccafa5f4dc78585a9b8ef45ab51876f1c942fd0bc99482e215cd427723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ba1a8ccafa5f4dc78585a9b8ef45ab51876f1c942fd0bc99482e215cd427723", kill_on_drop: false }`
[INFO] [stdout] 4ba1a8ccafa5f4dc78585a9b8ef45ab51876f1c942fd0bc99482e215cd427723
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cfde354c3fe75c9f7bc44db9ff86f1d58bea26f32f1b96d4afa32c521970242
[INFO] running `Command { std: "docker" "start" "-a" "9cfde354c3fe75c9f7bc44db9ff86f1d58bea26f32f1b96d4afa32c521970242", kill_on_drop: false }`
[INFO] [stderr]    Compiling io_operations v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "9cfde354c3fe75c9f7bc44db9ff86f1d58bea26f32f1b96d4afa32c521970242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cfde354c3fe75c9f7bc44db9ff86f1d58bea26f32f1b96d4afa32c521970242", kill_on_drop: false }`
[INFO] [stdout] 9cfde354c3fe75c9f7bc44db9ff86f1d58bea26f32f1b96d4afa32c521970242
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc389444a362007cbeb1c3922e1e5dfc99a0d0323522f85bbcfebd2e3876233e
[INFO] running `Command { std: "docker" "start" "-a" "bc389444a362007cbeb1c3922e1e5dfc99a0d0323522f85bbcfebd2e3876233e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling io_operations v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "bc389444a362007cbeb1c3922e1e5dfc99a0d0323522f85bbcfebd2e3876233e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc389444a362007cbeb1c3922e1e5dfc99a0d0323522f85bbcfebd2e3876233e", kill_on_drop: false }`
[INFO] [stdout] bc389444a362007cbeb1c3922e1e5dfc99a0d0323522f85bbcfebd2e3876233e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 897a9dd62a38a812542997e9946ea72f9f21703c929056811e5c203642643bd5
[INFO] running `Command { std: "docker" "start" "-a" "897a9dd62a38a812542997e9946ea72f9f21703c929056811e5c203642643bd5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/io_operations-530fcc3d947e3773)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test reader::tests::test_read_empty_be_i16 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_i32 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_i64 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_u16 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_u32 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_u64 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_i16 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_i8 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_i32 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_i64 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_u16 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_u32 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_u64 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_u8 ... ok
[INFO] [stdout] test test::test_read_write_be_i16 ... ok
[INFO] [stdout] test test::test_read_write_be_i32 ... ok
[INFO] [stdout] test test::test_read_write_be_u16 ... ok
[INFO] [stdout] test test::test_read_write_be_i64 ... ok
[INFO] [stdout] test test::test_read_write_be_u32 ... ok
[INFO] [stdout] test test::test_read_write_be_u64 ... ok
[INFO] [stdout] test test::test_read_write_le_i16 ... ok
[INFO] [stdout] test test::test_read_write_i8 ... ok
[INFO] [stdout] test test::test_read_write_le_i32 ... ok
[INFO] [stdout] test test::test_read_write_le_i64 ... ok
[INFO] [stdout] test test::test_read_write_le_u16 ... ok
[INFO] [stdout] test test::test_read_write_le_u32 ... ok
[INFO] [stdout] test test::test_read_write_le_u64 ... ok
[INFO] [stdout] test test::test_read_write_u8 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests io_operations
[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] running `Command { std: "docker" "inspect" "897a9dd62a38a812542997e9946ea72f9f21703c929056811e5c203642643bd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "897a9dd62a38a812542997e9946ea72f9f21703c929056811e5c203642643bd5", kill_on_drop: false }`
[INFO] [stdout] 897a9dd62a38a812542997e9946ea72f9f21703c929056811e5c203642643bd5