Dec 17 20:56:45.309 INFO checking lalaithion/errorcorrection against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 20:56:45.309 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/lalaithion/errorcorrection:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 20:56:45.781 INFO [stdout] 2db7f64fb4aeea996919577ebd0479fb69f98e85e873f10bf2f85a8f5c8d257d
Dec 17 20:56:45.783 INFO running `"docker" "start" "-a" "2db7f64fb4aeea996919577ebd0479fb69f98e85e873f10bf2f85a8f5c8d257d"`
Dec 17 20:56:48.280 INFO [stderr]     Checking argparse v0.2.1
Dec 17 20:56:49.091 INFO [stderr]     Checking eccfile v0.1.0 (/opt/crater/workdir)
Dec 17 20:56:49.892 INFO [stderr] warning: type alias is never used: `MatchWords`
Dec 17 20:56:49.892 INFO [stderr]   --> src/bitvec.rs:18:1
Dec 17 20:56:49.892 INFO [stderr]    |
Dec 17 20:56:49.892 INFO [stderr] 18 | type MatchWords<'a> = Chain<Enumerate<Blocks<'a>>, Skip<Take<Enumerate<Repeat<u32>>>>>;
Dec 17 20:56:49.892 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 20:56:49.892 INFO [stderr]    |
Dec 17 20:56:49.892 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 20:56:49.892 INFO [stderr] 
Dec 17 20:56:50.043 INFO [stderr] warning: unused variable: `i`
Dec 17 20:56:50.043 INFO [stderr]    --> src/hamming.rs:377:14
Dec 17 20:56:50.044 INFO [stderr]     |
Dec 17 20:56:50.044 INFO [stderr] 377 |         let (i, result) = arrange(&plain, i, 3);
Dec 17 20:56:50.045 INFO [stderr]     |              ^ help: consider using `_i` instead
Dec 17 20:56:50.048 INFO [stderr]     |
Dec 17 20:56:50.048 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 20:56:50.048 INFO [stderr] 
Dec 17 20:56:50.248 INFO [stderr] warning: type alias is never used: `MatchWords`
Dec 17 20:56:50.249 INFO [stderr]   --> src/bitvec.rs:18:1
Dec 17 20:56:50.249 INFO [stderr]    |
Dec 17 20:56:50.249 INFO [stderr] 18 | type MatchWords<'a> = Chain<Enumerate<Blocks<'a>>, Skip<Take<Enumerate<Repeat<u32>>>>>;
Dec 17 20:56:50.250 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 20:56:50.250 INFO [stderr]    |
Dec 17 20:56:50.250 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 20:56:50.252 INFO [stderr] 
Dec 17 20:56:50.296 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
Dec 17 20:56:51.153 INFO running `"docker" "inspect" "2db7f64fb4aeea996919577ebd0479fb69f98e85e873f10bf2f85a8f5c8d257d"`
Dec 17 20:56:51.508 INFO running `"docker" "rm" "-f" "2db7f64fb4aeea996919577ebd0479fb69f98e85e873f10bf2f85a8f5c8d257d"`
Dec 17 20:56:51.816 INFO [stdout] 2db7f64fb4aeea996919577ebd0479fb69f98e85e873f10bf2f85a8f5c8d257d