Dec 17 21:53:22.707 INFO checking justinbarclay/diff against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:53:22.707 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/justinbarclay/diff:/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 21:53:23.154 INFO [stdout] a508fe545276e1c1760ef31abb8faad0bcd1176ffa48e5e6f33287cccb15e8e2
Dec 17 21:53:23.156 INFO running `"docker" "start" "-a" "a508fe545276e1c1760ef31abb8faad0bcd1176ffa48e5e6f33287cccb15e8e2"`
Dec 17 21:53:25.516 INFO [stderr]     Checking rdiff v0.1.0 (/opt/crater/workdir)
Dec 17 21:53:26.003 INFO [stderr] warning: unused import: `time::now`
Dec 17 21:53:26.003 INFO [stderr]  --> src/diff.rs:7:5
Dec 17 21:53:26.003 INFO [stderr]   |
Dec 17 21:53:26.003 INFO [stderr] 7 | use time::now;
Dec 17 21:53:26.003 INFO [stderr]   |     ^^^^^^^^^
Dec 17 21:53:26.003 INFO [stderr]   |
Dec 17 21:53:26.003 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:53:26.003 INFO [stderr] 
Dec 17 21:53:26.004 INFO [stderr] warning: unused imports: `Edit`, `decorate_differences`, `diff_greedy`
Dec 17 21:53:26.004 INFO [stderr]  --> src/main.rs:9:12
Dec 17 21:53:26.004 INFO [stderr]   |
Dec 17 21:53:26.004 INFO [stderr] 9 | use diff::{diff_greedy, Edit, decorate_differences};
Dec 17 21:53:26.004 INFO [stderr]   |            ^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^^^^^^^^
Dec 17 21:53:26.004 INFO [stderr] 
Dec 17 21:53:26.112 INFO [stderr] warning: unused import: `time::now`
Dec 17 21:53:26.112 INFO [stderr]  --> src/diff.rs:7:5
Dec 17 21:53:26.112 INFO [stderr]   |
Dec 17 21:53:26.112 INFO [stderr] 7 | use time::now;
Dec 17 21:53:26.112 INFO [stderr]   |     ^^^^^^^^^
Dec 17 21:53:26.112 INFO [stderr]   |
Dec 17 21:53:26.112 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:53:26.112 INFO [stderr] 
Dec 17 21:53:26.112 INFO [stderr] warning: unused imports: `Edit`, `decorate_differences`, `diff_greedy`
Dec 17 21:53:26.112 INFO [stderr]  --> src/main.rs:9:12
Dec 17 21:53:26.112 INFO [stderr]   |
Dec 17 21:53:26.112 INFO [stderr] 9 | use diff::{diff_greedy, Edit, decorate_differences};
Dec 17 21:53:26.112 INFO [stderr]   |            ^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^^^^^^^^
Dec 17 21:53:26.112 INFO [stderr] 
Dec 17 21:53:26.216 INFO [stderr] warning: unused variable: `algo`
Dec 17 21:53:26.216 INFO [stderr]   --> src/main.rs:56:7
Dec 17 21:53:26.216 INFO [stderr]    |
Dec 17 21:53:26.216 INFO [stderr] 56 |   let algo = matches.value_of("ALGORITHM").unwrap_or("greedy");
Dec 17 21:53:26.216 INFO [stderr]    |       ^^^^ help: consider using `_algo` instead
Dec 17 21:53:26.216 INFO [stderr]    |
Dec 17 21:53:26.216 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 21:53:26.216 INFO [stderr] 
Dec 17 21:53:26.276 INFO [stderr] warning: method is never used: `get`
Dec 17 21:53:26.276 INFO [stderr]   --> src/negative_array.rs:52:3
Dec 17 21:53:26.276 INFO [stderr]    |
Dec 17 21:53:26.276 INFO [stderr] 52 |   pub fn get(&self, offset: isize) -> isize {
Dec 17 21:53:26.276 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:53:26.276 INFO [stderr]    |
Dec 17 21:53:26.276 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 21:53:26.276 INFO [stderr] 
Dec 17 21:53:26.276 INFO [stderr] warning: method is never used: `set`
Dec 17 21:53:26.276 INFO [stderr]   --> src/negative_array.rs:62:3
Dec 17 21:53:26.276 INFO [stderr]    |
Dec 17 21:53:26.276 INFO [stderr] 62 |   pub fn set(&mut self, offset: isize, value: isize) -> &mut NegativeArray {
Dec 17 21:53:26.276 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:53:26.276 INFO [stderr] 
Dec 17 21:53:26.464 INFO [stderr] warning: unused variable: `algo`
Dec 17 21:53:26.464 INFO [stderr]   --> src/main.rs:56:7
Dec 17 21:53:26.464 INFO [stderr]    |
Dec 17 21:53:26.464 INFO [stderr] 56 |   let algo = matches.value_of("ALGORITHM").unwrap_or("greedy");
Dec 17 21:53:26.464 INFO [stderr]    |       ^^^^ help: consider using `_algo` instead
Dec 17 21:53:26.464 INFO [stderr]    |
Dec 17 21:53:26.464 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 21:53:26.464 INFO [stderr] 
Dec 17 21:53:26.544 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:53:26.544 INFO [stderr]   --> src/negative_array.rs:83:9
Dec 17 21:53:26.544 INFO [stderr]    |
Dec 17 21:53:26.544 INFO [stderr] 83 |     let mut arr = NegativeArray::new(10);
Dec 17 21:53:26.544 INFO [stderr]    |         ----^^^
Dec 17 21:53:26.544 INFO [stderr]    |         |
Dec 17 21:53:26.544 INFO [stderr]    |         help: remove this `mut`
Dec 17 21:53:26.544 INFO [stderr]    |
Dec 17 21:53:26.544 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 21:53:26.544 INFO [stderr] 
Dec 17 21:53:26.592 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
Dec 17 21:53:27.242 INFO running `"docker" "inspect" "a508fe545276e1c1760ef31abb8faad0bcd1176ffa48e5e6f33287cccb15e8e2"`
Dec 17 21:53:27.494 INFO running `"docker" "rm" "-f" "a508fe545276e1c1760ef31abb8faad0bcd1176ffa48e5e6f33287cccb15e8e2"`
Dec 17 21:53:27.805 INFO [stdout] a508fe545276e1c1760ef31abb8faad0bcd1176ffa48e5e6f33287cccb15e8e2