[INFO] fetching crate tbunread 0.0.5...
[INFO] testing tbunread-0.0.5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tbunread 0.0.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate tbunread 0.0.5 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] removed /workspace/builds/worker-1/source/rust-toolchain
[INFO] started tweaking crates.io crate tbunread 0.0.5
[INFO] finished tweaking crates.io crate tbunread 0.0.5
[INFO] tweaked toml for crates.io crate tbunread 0.0.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate tbunread 0.0.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hotwatch v0.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 34e3264351c9110c0d9f0c74100dd3ed45ff8eecdf1c7aaf00a65d1d720f336d
[INFO] running `Command { std: "docker" "start" "-a" "34e3264351c9110c0d9f0c74100dd3ed45ff8eecdf1c7aaf00a65d1d720f336d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34e3264351c9110c0d9f0c74100dd3ed45ff8eecdf1c7aaf00a65d1d720f336d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34e3264351c9110c0d9f0c74100dd3ed45ff8eecdf1c7aaf00a65d1d720f336d", kill_on_drop: false }`
[INFO] [stdout] 34e3264351c9110c0d9f0c74100dd3ed45ff8eecdf1c7aaf00a65d1d720f336d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] a6696bbb9479bb680ce3780c3e4f17dd9c977cd59893630c26878bd5e9c699fd
[INFO] running `Command { std: "docker" "start" "-a" "a6696bbb9479bb680ce3780c3e4f17dd9c977cd59893630c26878bd5e9c699fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling argh_shared v0.1.4
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]    Compiling rustc-demangle v0.1.19
[INFO] [stderr]    Compiling object v0.24.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling os_type v2.3.0
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling notify v4.0.17
[INFO] [stderr]    Compiling hotwatch v0.4.5
[INFO] [stderr]    Compiling dlv-list v0.2.3
[INFO] [stderr]    Compiling addr2line v0.15.1
[INFO] [stderr]    Compiling ordered-multimap v0.3.1
[INFO] [stderr]    Compiling rust-ini v0.17.0
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling argh v0.1.4
[INFO] [stderr]    Compiling human-panic v1.0.3
[INFO] [stderr]    Compiling tbunread v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.80s
[INFO] running `Command { std: "docker" "inspect" "a6696bbb9479bb680ce3780c3e4f17dd9c977cd59893630c26878bd5e9c699fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6696bbb9479bb680ce3780c3e4f17dd9c977cd59893630c26878bd5e9c699fd", kill_on_drop: false }`
[INFO] [stdout] a6696bbb9479bb680ce3780c3e4f17dd9c977cd59893630c26878bd5e9c699fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 0787b0086e5f20a651a6a7b10898b25df382e2d11f6ccebfe46097b00f8ab45d
[INFO] running `Command { std: "docker" "start" "-a" "0787b0086e5f20a651a6a7b10898b25df382e2d11f6ccebfe46097b00f8ab45d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tbunread v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "0787b0086e5f20a651a6a7b10898b25df382e2d11f6ccebfe46097b00f8ab45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0787b0086e5f20a651a6a7b10898b25df382e2d11f6ccebfe46097b00f8ab45d", kill_on_drop: false }`
[INFO] [stdout] 0787b0086e5f20a651a6a7b10898b25df382e2d11f6ccebfe46097b00f8ab45d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 2dd7df5c3d197c776308df65a46564c0c3e718620d9ba68503178a072a56f2be
[INFO] running `Command { std: "docker" "start" "-a" "2dd7df5c3d197c776308df65a46564c0c3e718620d9ba68503178a072a56f2be", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tbunread-3bcd3c96fb1890d9)
[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" "2dd7df5c3d197c776308df65a46564c0c3e718620d9ba68503178a072a56f2be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dd7df5c3d197c776308df65a46564c0c3e718620d9ba68503178a072a56f2be", kill_on_drop: false }`
[INFO] [stdout] 2dd7df5c3d197c776308df65a46564c0c3e718620d9ba68503178a072a56f2be