Dec 04 16:12:35.212 INFO checking justinbarclay/diff against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 16:12:35.212 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 16:12:35.572 INFO [stdout] b1c5aee3ba2506a6fd101e98c1448a0e9c12a9544b4114e1597a3853bc212519
Dec 04 16:12:35.579 INFO running `"docker" "start" "-a" "b1c5aee3ba2506a6fd101e98c1448a0e9c12a9544b4114e1597a3853bc212519"`
Dec 04 16:12:37.114 INFO [stderr] usermod: no changes
Dec 04 16:12:37.260 INFO [stderr]     Checking rdiff v0.1.0 (/source)
Dec 04 16:12:38.215 INFO [stderr] warning: unused import: `time::now`
Dec 04 16:12:38.215 INFO [stderr]  --> src/diff.rs:7:5
Dec 04 16:12:38.215 INFO [stderr]   |
Dec 04 16:12:38.215 INFO [stderr] 7 | use time::now;
Dec 04 16:12:38.215 INFO [stderr]   |     ^^^^^^^^^
Dec 04 16:12:38.215 INFO [stderr]   |
Dec 04 16:12:38.215 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 16:12:38.215 INFO [stderr] 
Dec 04 16:12:38.215 INFO [stderr] warning: unused imports: `Edit`, `decorate_differences`, `diff_greedy`
Dec 04 16:12:38.215 INFO [stderr]  --> src/main.rs:9:12
Dec 04 16:12:38.215 INFO [stderr]   |
Dec 04 16:12:38.215 INFO [stderr] 9 | use diff::{diff_greedy, Edit, decorate_differences};
Dec 04 16:12:38.215 INFO [stderr]   |            ^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^^^^^^^^
Dec 04 16:12:38.215 INFO [stderr] 
Dec 04 16:12:38.427 INFO [stderr] warning: unused import: `time::now`
Dec 04 16:12:38.427 INFO [stderr]  --> src/diff.rs:7:5
Dec 04 16:12:38.427 INFO [stderr]   |
Dec 04 16:12:38.427 INFO [stderr] 7 | use time::now;
Dec 04 16:12:38.427 INFO [stderr]   |     ^^^^^^^^^
Dec 04 16:12:38.427 INFO [stderr]   |
Dec 04 16:12:38.427 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 16:12:38.427 INFO [stderr] 
Dec 04 16:12:38.427 INFO [stderr] warning: unused imports: `Edit`, `decorate_differences`, `diff_greedy`
Dec 04 16:12:38.427 INFO [stderr]  --> src/main.rs:9:12
Dec 04 16:12:38.427 INFO [stderr]   |
Dec 04 16:12:38.427 INFO [stderr] 9 | use diff::{diff_greedy, Edit, decorate_differences};
Dec 04 16:12:38.427 INFO [stderr]   |            ^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^^^^^^^^
Dec 04 16:12:38.427 INFO [stderr] 
Dec 04 16:12:38.515 INFO [stderr] warning: unused variable: `algo`
Dec 04 16:12:38.515 INFO [stderr]   --> src/main.rs:56:7
Dec 04 16:12:38.515 INFO [stderr]    |
Dec 04 16:12:38.515 INFO [stderr] 56 |   let algo = matches.value_of("ALGORITHM").unwrap_or("greedy");
Dec 04 16:12:38.515 INFO [stderr]    |       ^^^^ help: consider using `_algo` instead
Dec 04 16:12:38.515 INFO [stderr]    |
Dec 04 16:12:38.515 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 16:12:38.515 INFO [stderr] 
Dec 04 16:12:38.575 INFO [stderr] warning: method is never used: `get`
Dec 04 16:12:38.575 INFO [stderr]   --> src/negative_array.rs:52:3
Dec 04 16:12:38.575 INFO [stderr]    |
Dec 04 16:12:38.575 INFO [stderr] 52 |   pub fn get(&self, offset: isize) -> isize {
Dec 04 16:12:38.575 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:12:38.575 INFO [stderr]    |
Dec 04 16:12:38.575 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 16:12:38.575 INFO [stderr] 
Dec 04 16:12:38.575 INFO [stderr] warning: method is never used: `set`
Dec 04 16:12:38.575 INFO [stderr]   --> src/negative_array.rs:62:3
Dec 04 16:12:38.575 INFO [stderr]    |
Dec 04 16:12:38.575 INFO [stderr] 62 |   pub fn set(&mut self, offset: isize, value: isize) -> &mut NegativeArray {
Dec 04 16:12:38.575 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:12:38.575 INFO [stderr] 
Dec 04 16:12:38.763 INFO [stderr] warning: unused variable: `algo`
Dec 04 16:12:38.763 INFO [stderr]   --> src/main.rs:56:7
Dec 04 16:12:38.763 INFO [stderr]    |
Dec 04 16:12:38.763 INFO [stderr] 56 |   let algo = matches.value_of("ALGORITHM").unwrap_or("greedy");
Dec 04 16:12:38.763 INFO [stderr]    |       ^^^^ help: consider using `_algo` instead
Dec 04 16:12:38.763 INFO [stderr]    |
Dec 04 16:12:38.763 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 16:12:38.763 INFO [stderr] 
Dec 04 16:12:38.854 INFO [stderr] warning: variable does not need to be mutable
Dec 04 16:12:38.854 INFO [stderr]   --> src/negative_array.rs:83:9
Dec 04 16:12:38.854 INFO [stderr]    |
Dec 04 16:12:38.854 INFO [stderr] 83 |     let mut arr = NegativeArray::new(10);
Dec 04 16:12:38.854 INFO [stderr]    |         ----^^^
Dec 04 16:12:38.854 INFO [stderr]    |         |
Dec 04 16:12:38.854 INFO [stderr]    |         help: remove this `mut`
Dec 04 16:12:38.854 INFO [stderr]    |
Dec 04 16:12:38.855 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 16:12:38.855 INFO [stderr] 
Dec 04 16:12:38.905 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
Dec 04 16:12:38.923 INFO [stderr] su: No module specific data is present
Dec 04 16:12:39.857 INFO running `"docker" "inspect" "b1c5aee3ba2506a6fd101e98c1448a0e9c12a9544b4114e1597a3853bc212519"`
Dec 04 16:12:40.231 INFO running `"docker" "rm" "-f" "b1c5aee3ba2506a6fd101e98c1448a0e9c12a9544b4114e1597a3853bc212519"`
Dec 04 16:12:40.547 INFO [stdout] b1c5aee3ba2506a6fd101e98c1448a0e9c12a9544b4114e1597a3853bc212519