Dec 19 14:45:31.601 INFO checking justinbarclay/diff against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 14:45:31.601 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 14:45:32.040 INFO [stdout] d7df7435b4628e35b231cd18a76bee138868014200e0d69a0214622d99ee9d48
Dec 19 14:45:32.042 INFO running `"docker" "start" "-a" "d7df7435b4628e35b231cd18a76bee138868014200e0d69a0214622d99ee9d48"`
Dec 19 14:45:34.428 INFO [stderr]     Checking rdiff v0.1.0 (/opt/crater/workdir)
Dec 19 14:45:34.904 INFO [stderr] warning: unused import: `time::now`
Dec 19 14:45:34.905 INFO [stderr]  --> src/diff.rs:7:5
Dec 19 14:45:34.905 INFO [stderr]   |
Dec 19 14:45:34.905 INFO [stderr] 7 | use time::now;
Dec 19 14:45:34.906 INFO [stderr]   |     ^^^^^^^^^
Dec 19 14:45:34.906 INFO [stderr]   |
Dec 19 14:45:34.906 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 14:45:34.907 INFO [stderr] 
Dec 19 14:45:34.907 INFO [stderr] warning: unused imports: `Edit`, `decorate_differences`, `diff_greedy`
Dec 19 14:45:34.907 INFO [stderr]  --> src/main.rs:9:12
Dec 19 14:45:34.908 INFO [stderr]   |
Dec 19 14:45:34.908 INFO [stderr] 9 | use diff::{diff_greedy, Edit, decorate_differences};
Dec 19 14:45:34.908 INFO [stderr]   |            ^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^^^^^^^^
Dec 19 14:45:34.908 INFO [stderr] 
Dec 19 14:45:34.996 INFO [stderr] warning: unused import: `time::now`
Dec 19 14:45:34.997 INFO [stderr]  --> src/diff.rs:7:5
Dec 19 14:45:34.997 INFO [stderr]   |
Dec 19 14:45:34.997 INFO [stderr] 7 | use time::now;
Dec 19 14:45:34.997 INFO [stderr]   |     ^^^^^^^^^
Dec 19 14:45:34.998 INFO [stderr]   |
Dec 19 14:45:34.998 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 14:45:34.998 INFO [stderr] 
Dec 19 14:45:34.998 INFO [stderr] warning: unused imports: `Edit`, `decorate_differences`, `diff_greedy`
Dec 19 14:45:34.999 INFO [stderr]  --> src/main.rs:9:12
Dec 19 14:45:34.999 INFO [stderr]   |
Dec 19 14:45:34.999 INFO [stderr] 9 | use diff::{diff_greedy, Edit, decorate_differences};
Dec 19 14:45:35.000 INFO [stderr]   |            ^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^^^^^^^^
Dec 19 14:45:35.000 INFO [stderr] 
Dec 19 14:45:35.177 INFO [stderr] warning: unused variable: `algo`
Dec 19 14:45:35.177 INFO [stderr]   --> src/main.rs:56:7
Dec 19 14:45:35.177 INFO [stderr]    |
Dec 19 14:45:35.177 INFO [stderr] 56 |   let algo = matches.value_of("ALGORITHM").unwrap_or("greedy");
Dec 19 14:45:35.178 INFO [stderr]    |       ^^^^ help: consider using `_algo` instead
Dec 19 14:45:35.178 INFO [stderr]    |
Dec 19 14:45:35.178 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:45:35.179 INFO [stderr] 
Dec 19 14:45:35.265 INFO [stderr] warning: method is never used: `get`
Dec 19 14:45:35.265 INFO [stderr]   --> src/negative_array.rs:52:3
Dec 19 14:45:35.266 INFO [stderr]    |
Dec 19 14:45:35.266 INFO [stderr] 52 |   pub fn get(&self, offset: isize) -> isize {
Dec 19 14:45:35.266 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:45:35.267 INFO [stderr]    |
Dec 19 14:45:35.267 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 14:45:35.267 INFO [stderr] 
Dec 19 14:45:35.268 INFO [stderr] warning: method is never used: `set`
Dec 19 14:45:35.268 INFO [stderr]   --> src/negative_array.rs:62:3
Dec 19 14:45:35.268 INFO [stderr]    |
Dec 19 14:45:35.269 INFO [stderr] 62 |   pub fn set(&mut self, offset: isize, value: isize) -> &mut NegativeArray {
Dec 19 14:45:35.269 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:45:35.269 INFO [stderr] 
Dec 19 14:45:35.430 INFO [stderr] warning: unused variable: `algo`
Dec 19 14:45:35.430 INFO [stderr]   --> src/main.rs:56:7
Dec 19 14:45:35.431 INFO [stderr]    |
Dec 19 14:45:35.431 INFO [stderr] 56 |   let algo = matches.value_of("ALGORITHM").unwrap_or("greedy");
Dec 19 14:45:35.431 INFO [stderr]    |       ^^^^ help: consider using `_algo` instead
Dec 19 14:45:35.432 INFO [stderr]    |
Dec 19 14:45:35.432 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:45:35.432 INFO [stderr] 
Dec 19 14:45:35.540 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:45:35.540 INFO [stderr]   --> src/negative_array.rs:83:9
Dec 19 14:45:35.540 INFO [stderr]    |
Dec 19 14:45:35.540 INFO [stderr] 83 |     let mut arr = NegativeArray::new(10);
Dec 19 14:45:35.540 INFO [stderr]    |         ----^^^
Dec 19 14:45:35.540 INFO [stderr]    |         |
Dec 19 14:45:35.540 INFO [stderr]    |         help: remove this `mut`
Dec 19 14:45:35.540 INFO [stderr]    |
Dec 19 14:45:35.540 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 14:45:35.540 INFO [stderr] 
Dec 19 14:45:35.606 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
Dec 19 14:45:36.868 INFO running `"docker" "inspect" "d7df7435b4628e35b231cd18a76bee138868014200e0d69a0214622d99ee9d48"`
Dec 19 14:45:37.242 INFO running `"docker" "rm" "-f" "d7df7435b4628e35b231cd18a76bee138868014200e0d69a0214622d99ee9d48"`
Dec 19 14:45:37.564 INFO [stdout] d7df7435b4628e35b231cd18a76bee138868014200e0d69a0214622d99ee9d48