Dec 11 15:54:40.609 INFO checking justinbarclay/diff against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 15:54:40.609 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 15:54:41.163 INFO [stdout] ada13d8130d575c5fd96a39148c0b9100219209cc917a1e54104b91e925b0891
Dec 11 15:54:41.167 INFO running `"docker" "start" "-a" "ada13d8130d575c5fd96a39148c0b9100219209cc917a1e54104b91e925b0891"`
Dec 11 15:54:42.960 INFO [stderr] usermod: no changes
Dec 11 15:54:43.090 INFO [stderr]     Checking rdiff v0.1.0 (/source)
Dec 11 15:54:43.812 INFO [stderr] warning: unused import: `time::now`
Dec 11 15:54:43.813 INFO [stderr]  --> src/diff.rs:7:5
Dec 11 15:54:43.813 INFO [stderr]   |
Dec 11 15:54:43.814 INFO [stderr] 7 | use time::now;
Dec 11 15:54:43.814 INFO [stderr]   |     ^^^^^^^^^
Dec 11 15:54:43.814 INFO [stderr]   |
Dec 11 15:54:43.815 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 15:54:43.815 INFO [stderr] 
Dec 11 15:54:43.815 INFO [stderr] warning: unused imports: `Edit`, `decorate_differences`, `diff_greedy`
Dec 11 15:54:43.815 INFO [stderr]  --> src/main.rs:9:12
Dec 11 15:54:43.816 INFO [stderr]   |
Dec 11 15:54:43.816 INFO [stderr] 9 | use diff::{diff_greedy, Edit, decorate_differences};
Dec 11 15:54:43.816 INFO [stderr]   |            ^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^^^^^^^^
Dec 11 15:54:43.816 INFO [stderr] 
Dec 11 15:54:44.112 INFO [stderr] warning: unused variable: `algo`
Dec 11 15:54:44.112 INFO [stderr]   --> src/main.rs:56:7
Dec 11 15:54:44.112 INFO [stderr]    |
Dec 11 15:54:44.112 INFO [stderr] 56 |   let algo = matches.value_of("ALGORITHM").unwrap_or("greedy");
Dec 11 15:54:44.112 INFO [stderr]    |       ^^^^ help: consider using `_algo` instead
Dec 11 15:54:44.112 INFO [stderr]    |
Dec 11 15:54:44.112 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 15:54:44.112 INFO [stderr] 
Dec 11 15:54:44.135 INFO [stderr] warning: unused import: `time::now`
Dec 11 15:54:44.136 INFO [stderr]  --> src/diff.rs:7:5
Dec 11 15:54:44.136 INFO [stderr]   |
Dec 11 15:54:44.136 INFO [stderr] 7 | use time::now;
Dec 11 15:54:44.136 INFO [stderr]   |     ^^^^^^^^^
Dec 11 15:54:44.136 INFO [stderr]   |
Dec 11 15:54:44.136 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 15:54:44.136 INFO [stderr] 
Dec 11 15:54:44.145 INFO [stderr] warning: unused imports: `Edit`, `decorate_differences`, `diff_greedy`
Dec 11 15:54:44.145 INFO [stderr]  --> src/main.rs:9:12
Dec 11 15:54:44.145 INFO [stderr]   |
Dec 11 15:54:44.145 INFO [stderr] 9 | use diff::{diff_greedy, Edit, decorate_differences};
Dec 11 15:54:44.145 INFO [stderr]   |            ^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^^^^^^^^
Dec 11 15:54:44.145 INFO [stderr] 
Dec 11 15:54:44.216 INFO [stderr] warning: method is never used: `get`
Dec 11 15:54:44.216 INFO [stderr]   --> src/negative_array.rs:52:3
Dec 11 15:54:44.216 INFO [stderr]    |
Dec 11 15:54:44.216 INFO [stderr] 52 |   pub fn get(&self, offset: isize) -> isize {
Dec 11 15:54:44.216 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 15:54:44.217 INFO [stderr]    |
Dec 11 15:54:44.217 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 15:54:44.217 INFO [stderr] 
Dec 11 15:54:44.217 INFO [stderr] warning: method is never used: `set`
Dec 11 15:54:44.217 INFO [stderr]   --> src/negative_array.rs:62:3
Dec 11 15:54:44.217 INFO [stderr]    |
Dec 11 15:54:44.217 INFO [stderr] 62 |   pub fn set(&mut self, offset: isize, value: isize) -> &mut NegativeArray {
Dec 11 15:54:44.217 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 15:54:44.217 INFO [stderr] 
Dec 11 15:54:44.474 INFO [stderr] warning: unused variable: `algo`
Dec 11 15:54:44.474 INFO [stderr]   --> src/main.rs:56:7
Dec 11 15:54:44.474 INFO [stderr]    |
Dec 11 15:54:44.474 INFO [stderr] 56 |   let algo = matches.value_of("ALGORITHM").unwrap_or("greedy");
Dec 11 15:54:44.474 INFO [stderr]    |       ^^^^ help: consider using `_algo` instead
Dec 11 15:54:44.474 INFO [stderr]    |
Dec 11 15:54:44.474 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 15:54:44.474 INFO [stderr] 
Dec 11 15:54:44.561 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:54:44.561 INFO [stderr]   --> src/negative_array.rs:83:9
Dec 11 15:54:44.561 INFO [stderr]    |
Dec 11 15:54:44.561 INFO [stderr] 83 |     let mut arr = NegativeArray::new(10);
Dec 11 15:54:44.561 INFO [stderr]    |         ----^^^
Dec 11 15:54:44.561 INFO [stderr]    |         |
Dec 11 15:54:44.561 INFO [stderr]    |         help: remove this `mut`
Dec 11 15:54:44.561 INFO [stderr]    |
Dec 11 15:54:44.561 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 15:54:44.561 INFO [stderr] 
Dec 11 15:54:44.610 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
Dec 11 15:54:44.617 INFO [stderr] su: No module specific data is present
Dec 11 15:54:46.060 INFO running `"docker" "inspect" "ada13d8130d575c5fd96a39148c0b9100219209cc917a1e54104b91e925b0891"`
Dec 11 15:54:46.505 INFO running `"docker" "rm" "-f" "ada13d8130d575c5fd96a39148c0b9100219209cc917a1e54104b91e925b0891"`
Dec 11 15:54:46.892 INFO [stdout] ada13d8130d575c5fd96a39148c0b9100219209cc917a1e54104b91e925b0891