[INFO] updating cached repository https://github.com/ctm/mdck
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7151cc6b9163d6f45026b1367bbda75af6b1676a
[INFO] testing ctm/mdck against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctm%2Fmdck" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ctm/mdck on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ctm/mdck
[INFO] finished tweaking git repo https://github.com/ctm/mdck
[INFO] tweaked toml for git repo https://github.com/ctm/mdck written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ctm/mdck already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 95abb8ebf3442f4967576ed31bf465f7f9f2d51aacf5424f816fbca2e457c838
[INFO] running `"docker" "start" "-a" "95abb8ebf3442f4967576ed31bf465f7f9f2d51aacf5424f816fbca2e457c838"`
[INFO] [stderr]    Compiling bytecount v0.5.0
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling structopt v0.2.14
[INFO] [stderr]    Compiling mdck v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/error.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut walkdir_err;
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.25s
[INFO] running `"docker" "inspect" "95abb8ebf3442f4967576ed31bf465f7f9f2d51aacf5424f816fbca2e457c838"`
[INFO] running `"docker" "rm" "-f" "95abb8ebf3442f4967576ed31bf465f7f9f2d51aacf5424f816fbca2e457c838"`
[INFO] [stdout] 95abb8ebf3442f4967576ed31bf465f7f9f2d51aacf5424f816fbca2e457c838
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3d2c252791413bb4e9568de4cc01a1bb4e59a976dd6105e0b17cc7de5a4adb51
[INFO] running `"docker" "start" "-a" "3d2c252791413bb4e9568de4cc01a1bb4e59a976dd6105e0b17cc7de5a4adb51"`
[INFO] [stderr]    Compiling mdck v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/error.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut walkdir_err;
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "3d2c252791413bb4e9568de4cc01a1bb4e59a976dd6105e0b17cc7de5a4adb51"`
[INFO] running `"docker" "rm" "-f" "3d2c252791413bb4e9568de4cc01a1bb4e59a976dd6105e0b17cc7de5a4adb51"`
[INFO] [stdout] 3d2c252791413bb4e9568de4cc01a1bb4e59a976dd6105e0b17cc7de5a4adb51
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 6d93e4c06cb1c4a6f938104dba38119073a314d10c9ff27e2f5c799d0130ea8e
[INFO] running `"docker" "start" "-a" "6d93e4c06cb1c4a6f938104dba38119073a314d10c9ff27e2f5c799d0130ea8e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mdck-0027f27b63218612
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mdck-43893643aa7ed125
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mdck
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6d93e4c06cb1c4a6f938104dba38119073a314d10c9ff27e2f5c799d0130ea8e"`
[INFO] running `"docker" "rm" "-f" "6d93e4c06cb1c4a6f938104dba38119073a314d10c9ff27e2f5c799d0130ea8e"`
[INFO] [stdout] 6d93e4c06cb1c4a6f938104dba38119073a314d10c9ff27e2f5c799d0130ea8e