Dec 17 17:12:39.751 INFO checking rcoverick/rust_dailyprogrammer against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 17:12:39.751 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/rcoverick/rust_dailyprogrammer:/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 17:12:40.002 INFO [stdout] f709943623bd1ccd32b0d2ad7129252ee64930103916b0118bc53a1b024b7197
Dec 17 17:12:40.008 INFO running `"docker" "start" "-a" "f709943623bd1ccd32b0d2ad7129252ee64930103916b0118bc53a1b024b7197"`
Dec 17 17:12:40.995 INFO [stderr]     Checking dailyprogrammer v0.1.0 (/opt/crater/workdir)
Dec 17 17:12:41.167 INFO [stderr] warning: doc comment not used by rustdoc
Dec 17 17:12:41.167 INFO [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:3:5
Dec 17 17:12:41.167 INFO [stderr]   |
Dec 17 17:12:41.167 INFO [stderr] 3 |     ///Numerals need to be in order. Each pair of numerals can be swapped to form a different number. 
Dec 17 17:12:41.167 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:12:41.167 INFO [stderr]   |
Dec 17 17:12:41.167 INFO [stderr]   = note: #[warn(unused_doc_comments)] on by default
Dec 17 17:12:41.167 INFO [stderr] 
Dec 17 17:12:41.168 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 17 17:12:41.168 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
Dec 17 17:12:41.168 INFO [stderr]    |
Dec 17 17:12:41.168 INFO [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
Dec 17 17:12:41.168 INFO [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
Dec 17 17:12:41.168 INFO [stderr]    |
Dec 17 17:12:41.168 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 17 17:12:41.168 INFO [stderr] 
Dec 17 17:12:41.203 INFO [stderr] warning: doc comment not used by rustdoc
Dec 17 17:12:41.204 INFO [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:3:5
Dec 17 17:12:41.204 INFO [stderr]   |
Dec 17 17:12:41.204 INFO [stderr] 3 |     ///Numerals need to be in order. Each pair of numerals can be swapped to form a different number. 
Dec 17 17:12:41.204 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:12:41.205 INFO [stderr]   |
Dec 17 17:12:41.205 INFO [stderr]   = note: #[warn(unused_doc_comments)] on by default
Dec 17 17:12:41.205 INFO [stderr] 
Dec 17 17:12:41.206 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 17 17:12:41.207 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
Dec 17 17:12:41.207 INFO [stderr]    |
Dec 17 17:12:41.207 INFO [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
Dec 17 17:12:41.207 INFO [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
Dec 17 17:12:41.207 INFO [stderr]    |
Dec 17 17:12:41.208 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 17 17:12:41.208 INFO [stderr] 
Dec 17 17:12:41.560 INFO [stderr] warning: variable does not need to be mutable
Dec 17 17:12:41.561 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:38:41
Dec 17 17:12:41.564 INFO [stderr]    |
Dec 17 17:12:41.564 INFO [stderr] 38 |     res.chunks_mut(width as usize).map(|mut x| x.reverse()).count();
Dec 17 17:12:41.564 INFO [stderr]    |                                         ----^
Dec 17 17:12:41.564 INFO [stderr]    |                                         |
Dec 17 17:12:41.564 INFO [stderr]    |                                         help: remove this `mut`
Dec 17 17:12:41.564 INFO [stderr]    |
Dec 17 17:12:41.564 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 17:12:41.564 INFO [stderr] 
Dec 17 17:12:41.575 INFO [stderr] warning: variable does not need to be mutable
Dec 17 17:12:41.575 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:38:41
Dec 17 17:12:41.575 INFO [stderr]    |
Dec 17 17:12:41.575 INFO [stderr] 38 |     res.chunks_mut(width as usize).map(|mut x| x.reverse()).count();
Dec 17 17:12:41.575 INFO [stderr]    |                                         ----^
Dec 17 17:12:41.575 INFO [stderr]    |                                         |
Dec 17 17:12:41.575 INFO [stderr]    |                                         help: remove this `mut`
Dec 17 17:12:41.575 INFO [stderr]    |
Dec 17 17:12:41.575 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 17:12:41.575 INFO [stderr] 
Dec 17 17:12:41.802 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
Dec 17 17:12:42.266 INFO running `"docker" "inspect" "f709943623bd1ccd32b0d2ad7129252ee64930103916b0118bc53a1b024b7197"`
Dec 17 17:12:42.434 INFO running `"docker" "rm" "-f" "f709943623bd1ccd32b0d2ad7129252ee64930103916b0118bc53a1b024b7197"`
Dec 17 17:12:42.612 INFO [stdout] f709943623bd1ccd32b0d2ad7129252ee64930103916b0118bc53a1b024b7197