[INFO] fetching crate top_n_tail 0.1.0...
[INFO] testing top_n_tail-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate top_n_tail 0.1.0 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate top_n_tail 0.1.0 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 top_n_tail 0.1.0
[INFO] finished tweaking crates.io crate top_n_tail 0.1.0
[INFO] tweaked toml for crates.io crate top_n_tail 0.1.0 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate crates.io crate top_n_tail 0.1.0 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] c1edfa7ae6f3090f272706803dba73bce51247814736f4ed6c021d7cc0efa046
[INFO] running `Command { std: "docker" "start" "-a" "c1edfa7ae6f3090f272706803dba73bce51247814736f4ed6c021d7cc0efa046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1edfa7ae6f3090f272706803dba73bce51247814736f4ed6c021d7cc0efa046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1edfa7ae6f3090f272706803dba73bce51247814736f4ed6c021d7cc0efa046", kill_on_drop: false }`
[INFO] [stdout] c1edfa7ae6f3090f272706803dba73bce51247814736f4ed6c021d7cc0efa046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] e4baf0b172d0415289b17f770587fe70017cd50fcaf167a45293f94c54108dc1
[INFO] running `Command { std: "docker" "start" "-a" "e4baf0b172d0415289b17f770587fe70017cd50fcaf167a45293f94c54108dc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling top_n_tail v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.68s
[INFO] running `Command { std: "docker" "inspect" "e4baf0b172d0415289b17f770587fe70017cd50fcaf167a45293f94c54108dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4baf0b172d0415289b17f770587fe70017cd50fcaf167a45293f94c54108dc1", kill_on_drop: false }`
[INFO] [stdout] e4baf0b172d0415289b17f770587fe70017cd50fcaf167a45293f94c54108dc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 82191050da9036ad2ab951d21f2819f080f048ff67c20c481559c6e9b9e9bc42
[INFO] running `Command { std: "docker" "start" "-a" "82191050da9036ad2ab951d21f2819f080f048ff67c20c481559c6e9b9e9bc42", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling top_n_tail v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "82191050da9036ad2ab951d21f2819f080f048ff67c20c481559c6e9b9e9bc42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82191050da9036ad2ab951d21f2819f080f048ff67c20c481559c6e9b9e9bc42", kill_on_drop: false }`
[INFO] [stdout] 82191050da9036ad2ab951d21f2819f080f048ff67c20c481559c6e9b9e9bc42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 07a095e599264ea453aadd5ca3ee1cb88d0c38cc71bcecaa28ac7ce717f891ad
[INFO] running `Command { std: "docker" "start" "-a" "07a095e599264ea453aadd5ca3ee1cb88d0c38cc71bcecaa28ac7ce717f891ad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tnt-04afb86802f1d0a6)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::filter::start_and_end_all_lines ... ok
[INFO] [stdout] test tests::filter::start_and_end_equal ... ok
[INFO] [stdout] test tests::filter::start_and_end_subset_bottom ... ok
[INFO] [stdout] test tests::filter::start_and_end_greater_than_end_of_file ... ok
[INFO] [stdout] test tests::filter::start_and_end_subset_top ... ok
[INFO] [stdout] test tests::filter::start_only_greater_than_end_of_file ... ok
[INFO] [stdout] test tests::filter::start_only_subset ... ok
[INFO] [stdout] test tests::filter::start_only_zero_whole_file ... ok
[INFO] [stdout] test tests::filter::start_valid_but_end_greater_than_end_of_file ... ok
[INFO] [stdout] test tests::filter::start_greater_than_end - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07a095e599264ea453aadd5ca3ee1cb88d0c38cc71bcecaa28ac7ce717f891ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a095e599264ea453aadd5ca3ee1cb88d0c38cc71bcecaa28ac7ce717f891ad", kill_on_drop: false }`
[INFO] [stdout] 07a095e599264ea453aadd5ca3ee1cb88d0c38cc71bcecaa28ac7ce717f891ad