Dec 04 11:51:00.863 INFO checking rcoverick/rust_dailyprogrammer against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 11:51:00.863 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 11:51:01.185 INFO [stdout] fd07efc005fd5ea1dc6d3113137745f4bb7d8155ba96c545d4ad62f5acb1b54d
Dec 04 11:51:01.188 INFO running `"docker" "start" "-a" "fd07efc005fd5ea1dc6d3113137745f4bb7d8155ba96c545d4ad62f5acb1b54d"`
Dec 04 11:51:02.083 INFO [stderr] usermod: no changes
Dec 04 11:51:02.147 INFO [stderr]     Checking dailyprogrammer v0.1.0 (/source)
Dec 04 11:51:02.351 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 11:51:02.351 INFO [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:3:5
Dec 04 11:51:02.351 INFO [stderr]   |
Dec 04 11:51:02.351 INFO [stderr] 3 |     ///Numerals need to be in order. Each pair of numerals can be swapped to form a different number. 
Dec 04 11:51:02.351 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 11:51:02.351 INFO [stderr]   |
Dec 04 11:51:02.351 INFO [stderr]   = note: #[warn(unused_doc_comments)] on by default
Dec 04 11:51:02.351 INFO [stderr] 
Dec 04 11:51:02.351 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 04 11:51:02.351 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
Dec 04 11:51:02.351 INFO [stderr]    |
Dec 04 11:51:02.351 INFO [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
Dec 04 11:51:02.351 INFO [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
Dec 04 11:51:02.351 INFO [stderr]    |
Dec 04 11:51:02.351 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 04 11:51:02.351 INFO [stderr] 
Dec 04 11:51:02.483 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 11:51:02.483 INFO [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:3:5
Dec 04 11:51:02.483 INFO [stderr]   |
Dec 04 11:51:02.483 INFO [stderr] 3 |     ///Numerals need to be in order. Each pair of numerals can be swapped to form a different number. 
Dec 04 11:51:02.483 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 11:51:02.483 INFO [stderr]   |
Dec 04 11:51:02.483 INFO [stderr]   = note: #[warn(unused_doc_comments)] on by default
Dec 04 11:51:02.483 INFO [stderr] 
Dec 04 11:51:02.483 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 04 11:51:02.483 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
Dec 04 11:51:02.483 INFO [stderr]    |
Dec 04 11:51:02.483 INFO [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
Dec 04 11:51:02.483 INFO [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
Dec 04 11:51:02.483 INFO [stderr]    |
Dec 04 11:51:02.483 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 04 11:51:02.483 INFO [stderr] 
Dec 04 11:51:02.703 INFO [stderr] warning: variable does not need to be mutable
Dec 04 11:51:02.703 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:38:41
Dec 04 11:51:02.703 INFO [stderr]    |
Dec 04 11:51:02.703 INFO [stderr] 38 |     res.chunks_mut(width as usize).map(|mut x| x.reverse()).count();
Dec 04 11:51:02.703 INFO [stderr]    |                                         ----^
Dec 04 11:51:02.703 INFO [stderr]    |                                         |
Dec 04 11:51:02.703 INFO [stderr]    |                                         help: remove this `mut`
Dec 04 11:51:02.703 INFO [stderr]    |
Dec 04 11:51:02.703 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 11:51:02.703 INFO [stderr] 
Dec 04 11:51:03.003 INFO [stderr] warning: variable does not need to be mutable
Dec 04 11:51:03.003 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:38:41
Dec 04 11:51:03.003 INFO [stderr]    |
Dec 04 11:51:03.003 INFO [stderr] 38 |     res.chunks_mut(width as usize).map(|mut x| x.reverse()).count();
Dec 04 11:51:03.003 INFO [stderr]    |                                         ----^
Dec 04 11:51:03.003 INFO [stderr]    |                                         |
Dec 04 11:51:03.003 INFO [stderr]    |                                         help: remove this `mut`
Dec 04 11:51:03.003 INFO [stderr]    |
Dec 04 11:51:03.003 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 11:51:03.003 INFO [stderr] 
Dec 04 11:51:03.210 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Dec 04 11:51:03.223 INFO [stderr] su: No module specific data is present
Dec 04 11:51:03.725 INFO running `"docker" "inspect" "fd07efc005fd5ea1dc6d3113137745f4bb7d8155ba96c545d4ad62f5acb1b54d"`
Dec 04 11:51:04.039 INFO running `"docker" "rm" "-f" "fd07efc005fd5ea1dc6d3113137745f4bb7d8155ba96c545d4ad62f5acb1b54d"`
Dec 04 11:51:04.335 INFO [stdout] fd07efc005fd5ea1dc6d3113137745f4bb7d8155ba96c545d4ad62f5acb1b54d