[INFO] fetching crate bufreaderwriter 0.1.2...
[INFO] testing bufreaderwriter-0.1.2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate bufreaderwriter 0.1.2 into /workspace/builds/worker-58/source
[INFO] validating manifest of crates.io crate bufreaderwriter 0.1.2 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bufreaderwriter 0.1.2
[INFO] finished tweaking crates.io crate bufreaderwriter 0.1.2
[INFO] tweaked toml for crates.io crate bufreaderwriter 0.1.2 written to /workspace/builds/worker-58/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-2022-02-22" "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-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c6b8e1bddbe38d7e7aacf4c1f288d3ed542ad4f83073f9d04ccfe8c04dc63c9
[INFO] running `Command { std: "docker" "start" "-a" "2c6b8e1bddbe38d7e7aacf4c1f288d3ed542ad4f83073f9d04ccfe8c04dc63c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c6b8e1bddbe38d7e7aacf4c1f288d3ed542ad4f83073f9d04ccfe8c04dc63c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c6b8e1bddbe38d7e7aacf4c1f288d3ed542ad4f83073f9d04ccfe8c04dc63c9", kill_on_drop: false }`
[INFO] [stdout] 2c6b8e1bddbe38d7e7aacf4c1f288d3ed542ad4f83073f9d04ccfe8c04dc63c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8313926a3964a59d55292f2fdf20adee12e44c21eecc917e9a919d30f71e7255
[INFO] running `Command { std: "docker" "start" "-a" "8313926a3964a59d55292f2fdf20adee12e44c21eecc917e9a919d30f71e7255", kill_on_drop: false }`
[INFO] [stderr]    Compiling bufreaderwriter v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "8313926a3964a59d55292f2fdf20adee12e44c21eecc917e9a919d30f71e7255", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8313926a3964a59d55292f2fdf20adee12e44c21eecc917e9a919d30f71e7255", kill_on_drop: false }`
[INFO] [stdout] 8313926a3964a59d55292f2fdf20adee12e44c21eecc917e9a919d30f71e7255
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54b09bd2d7d2c584ea15bf2f4e13cf04d19bfeb776b1d34976d1514c2020a809
[INFO] running `Command { std: "docker" "start" "-a" "54b09bd2d7d2c584ea15bf2f4e13cf04d19bfeb776b1d34976d1514c2020a809", kill_on_drop: false }`
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling bufreaderwriter v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "54b09bd2d7d2c584ea15bf2f4e13cf04d19bfeb776b1d34976d1514c2020a809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b09bd2d7d2c584ea15bf2f4e13cf04d19bfeb776b1d34976d1514c2020a809", kill_on_drop: false }`
[INFO] [stdout] 54b09bd2d7d2c584ea15bf2f4e13cf04d19bfeb776b1d34976d1514c2020a809
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 713608442e9d083fb95675595a1d8b75ab2cabbf32681a67048590777fca49e4
[INFO] running `Command { std: "docker" "start" "-a" "713608442e9d083fb95675595a1d8b75ab2cabbf32681a67048590777fca49e4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bufreaderwriter-242b7344fd5716f1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bufreaderwriter
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 12) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "713608442e9d083fb95675595a1d8b75ab2cabbf32681a67048590777fca49e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "713608442e9d083fb95675595a1d8b75ab2cabbf32681a67048590777fca49e4", kill_on_drop: false }`
[INFO] [stdout] 713608442e9d083fb95675595a1d8b75ab2cabbf32681a67048590777fca49e4