Dec 18 05:15:56.102 INFO checking TechnoCrunch/huffman-rs against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:15:56.102 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/TechnoCrunch/huffman-rs:/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 18 05:15:56.358 INFO [stdout] 721ee8631cd516780ecf9f35417e8192ac7d5a41780ca2cc983ba81d18dd0ca3
Dec 18 05:15:56.366 INFO running `"docker" "start" "-a" "721ee8631cd516780ecf9f35417e8192ac7d5a41780ca2cc983ba81d18dd0ca3"`
Dec 18 05:15:57.244 INFO [stderr]     Checking huffman v0.1.0 (/opt/crater/workdir)
Dec 18 05:15:57.431 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 05:15:57.431 INFO [stderr]   --> src/main.rs:65:43
Dec 18 05:15:57.431 INFO [stderr]    |
Dec 18 05:15:57.431 INFO [stderr] 65 |             generate_code(l, huffman_map, (s.clone() + "0"));
Dec 18 05:15:57.431 INFO [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 05:15:57.431 INFO [stderr]    |
Dec 18 05:15:57.431 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 05:15:57.431 INFO [stderr] 
Dec 18 05:15:57.431 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 05:15:57.431 INFO [stderr]   --> src/main.rs:68:43
Dec 18 05:15:57.431 INFO [stderr]    |
Dec 18 05:15:57.431 INFO [stderr] 68 |             generate_code(r, huffman_map, (s.clone() + "1"));
Dec 18 05:15:57.436 INFO [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 05:15:57.436 INFO [stderr] 
Dec 18 05:15:57.544 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 05:15:57.544 INFO [stderr]   --> src/main.rs:65:43
Dec 18 05:15:57.544 INFO [stderr]    |
Dec 18 05:15:57.544 INFO [stderr] 65 |             generate_code(l, huffman_map, (s.clone() + "0"));
Dec 18 05:15:57.544 INFO [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 05:15:57.544 INFO [stderr]    |
Dec 18 05:15:57.544 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 05:15:57.544 INFO [stderr] 
Dec 18 05:15:57.544 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 05:15:57.544 INFO [stderr]   --> src/main.rs:68:43
Dec 18 05:15:57.544 INFO [stderr]    |
Dec 18 05:15:57.544 INFO [stderr] 68 |             generate_code(r, huffman_map, (s.clone() + "1"));
Dec 18 05:15:57.544 INFO [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 05:15:57.544 INFO [stderr] 
Dec 18 05:15:57.674 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Dec 18 05:15:58.095 INFO running `"docker" "inspect" "721ee8631cd516780ecf9f35417e8192ac7d5a41780ca2cc983ba81d18dd0ca3"`
Dec 18 05:15:58.255 INFO running `"docker" "rm" "-f" "721ee8631cd516780ecf9f35417e8192ac7d5a41780ca2cc983ba81d18dd0ca3"`
Dec 18 05:15:58.391 INFO [stdout] 721ee8631cd516780ecf9f35417e8192ac7d5a41780ca2cc983ba81d18dd0ca3