[INFO] cloning repository https://github.com/mapkts/fcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mapkts/fcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapkts%2Ffcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapkts%2Ffcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f5dafe0488533f0d988fc059923e5ae41e6a921
[INFO] testing mapkts/fcc against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapkts%2Ffcc" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mapkts/fcc on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mapkts/fcc
[INFO] finished tweaking git repo https://github.com/mapkts/fcc
[INFO] tweaked toml for git repo https://github.com/mapkts/fcc written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mapkts/fcc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a216b7067673d3020f295240c249c050808abb9c3e5f13dfa5f10591a764f3c
[INFO] running `Command { std: "docker" "start" "-a" "1a216b7067673d3020f295240c249c050808abb9c3e5f13dfa5f10591a764f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a216b7067673d3020f295240c249c050808abb9c3e5f13dfa5f10591a764f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a216b7067673d3020f295240c249c050808abb9c3e5f13dfa5f10591a764f3c", kill_on_drop: false }`
[INFO] [stdout] 1a216b7067673d3020f295240c249c050808abb9c3e5f13dfa5f10591a764f3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cb19c4d4bebc934963c6ee6d04254adefa995270adc9c25ae95b2f0c2fc11f5
[INFO] running `Command { std: "docker" "start" "-a" "6cb19c4d4bebc934963c6ee6d04254adefa995270adc9c25ae95b2f0c2fc11f5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling byteseeker v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling admerge v0.1.3
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling fcc v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.65s
[INFO] running `Command { std: "docker" "inspect" "6cb19c4d4bebc934963c6ee6d04254adefa995270adc9c25ae95b2f0c2fc11f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cb19c4d4bebc934963c6ee6d04254adefa995270adc9c25ae95b2f0c2fc11f5", kill_on_drop: false }`
[INFO] [stdout] 6cb19c4d4bebc934963c6ee6d04254adefa995270adc9c25ae95b2f0c2fc11f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e463d21d256d4854e1aff62089d4e2d38eb59b030d2a36155993781cfdbd7199
[INFO] running `Command { std: "docker" "start" "-a" "e463d21d256d4854e1aff62089d4e2d38eb59b030d2a36155993781cfdbd7199", kill_on_drop: false }`
[INFO] [stderr]    Compiling predicates-core v1.0.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling predicates-tree v1.0.0
[INFO] [stderr]    Compiling float-cmp v0.6.0
[INFO] [stderr]    Compiling predicates v1.0.4
[INFO] [stderr]    Compiling assert_cmd v1.0.1
[INFO] [stderr]    Compiling fcc v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.26s
[INFO] running `Command { std: "docker" "inspect" "e463d21d256d4854e1aff62089d4e2d38eb59b030d2a36155993781cfdbd7199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e463d21d256d4854e1aff62089d4e2d38eb59b030d2a36155993781cfdbd7199", kill_on_drop: false }`
[INFO] [stdout] e463d21d256d4854e1aff62089d4e2d38eb59b030d2a36155993781cfdbd7199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 65a8d5ef39990c595d6feb269d50e78b0a1de89243628cbd20875fe867d12a7f
[INFO] running `Command { std: "docker" "start" "-a" "65a8d5ef39990c595d6feb269d50e78b0a1de89243628cbd20875fe867d12a7f", 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]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fcc-ef468e7745bfb3b0)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/cli.rs (/opt/rustwide/target/debug/deps/cli-bb0dac8be62f950b)
[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] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test arg_headonce_works_as_expected ... ok
[INFO] [stdout] test arg_newline_style_works_as_expected ... ok
[INFO] [stdout] test arg_newline_works_as_expected ... ok
[INFO] [stdout] test arg_tailonce_works_as_expected ... ok
[INFO] [stdout] test can_accept_newline_and_space_separated_paths_through_stdin ... ok
[INFO] [stdout] test can_accept_paths_through_arg_i ... ok
[INFO] [stdout] test can_accept_space_separated_paths_through_stdin ... ok
[INFO] [stdout] test args_mixed_works_as_expected ... ok
[INFO] [stdout] test can_interact_with_stdio ... ok
[INFO] [stdout] test bin_fcc_exists ... ok
[INFO] [stdout] test can_write_output_to_a_file ... ok
[INFO] [stdout] test arg_skip_head_works_as_expected ... ok
[INFO] [stdout] test arg_skip_tail_works_as_expected ... ok
[INFO] [stdout] test arg_skip_tail_onces_works_as_expected ... ok
[INFO] [stdout] test arg_skip_head_bytes_works_as_expected ... ok
[INFO] [stdout] test skip_heads_cannot_provide_at_the_same_time ... ok
[INFO] [stdout] test arg_skip_tail_bytes_works_as_expected ... ok
[INFO] [stdout] test arg_padding_works_as_expected ... ok
[INFO] [stdout] test can_accept_newline_separated_paths_through_stdin ... ok
[INFO] [stdout] test skip_tails_cannot_provide_at_the_same_time ... ok
[INFO] [stdout] test arg_skip_head_once_works_as_expected ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "65a8d5ef39990c595d6feb269d50e78b0a1de89243628cbd20875fe867d12a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65a8d5ef39990c595d6feb269d50e78b0a1de89243628cbd20875fe867d12a7f", kill_on_drop: false }`
[INFO] [stdout] 65a8d5ef39990c595d6feb269d50e78b0a1de89243628cbd20875fe867d12a7f