Nov 28 18:39:57.698 INFO checking rusty-santa-0.1.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 18:39:57.700 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 18:39:58.168 INFO [stdout] f51e3f529e97a128f38e503559948810a7fb2062b98e1fb520ec5ba295f2aa3e
Nov 28 18:39:58.170 INFO running `"docker" "start" "-a" "f51e3f529e97a128f38e503559948810a7fb2062b98e1fb520ec5ba295f2aa3e"`
Nov 28 18:39:59.640 INFO [stderr] usermod: no changes
Nov 28 18:39:59.748 INFO [stderr]     Checking rusty-santa v0.1.0 (/source)
Nov 28 18:40:01.324 INFO [stderr] warning: method is never used: `get`
Nov 28 18:40:01.324 INFO [stderr]   --> src/lib.rs:64:5
Nov 28 18:40:01.324 INFO [stderr]    |
Nov 28 18:40:01.324 INFO [stderr] 64 |     pub fn get(&self, x: &str, y: &str) -> bool {
Nov 28 18:40:01.324 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 18:40:01.324 INFO [stderr]    |
Nov 28 18:40:01.324 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 18:40:01.324 INFO [stderr] 
Nov 28 18:40:01.324 INFO [stderr] warning: method is never used: `size`
Nov 28 18:40:01.324 INFO [stderr]    --> src/lib.rs:103:5
Nov 28 18:40:01.324 INFO [stderr]     |
Nov 28 18:40:01.324 INFO [stderr] 103 |     pub fn size(&self) -> usize {
Nov 28 18:40:01.324 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 18:40:01.324 INFO [stderr] 
Nov 28 18:40:01.468 INFO [stderr] warning: unused variable: `i`
Nov 28 18:40:01.468 INFO [stderr]    --> src/lib.rs:357:13
Nov 28 18:40:01.469 INFO [stderr]     |
Nov 28 18:40:01.469 INFO [stderr] 357 |         for i in 0..1000 {
Nov 28 18:40:01.473 INFO [stderr]     |             ^ help: consider using `_i` instead
Nov 28 18:40:01.473 INFO [stderr]     |
Nov 28 18:40:01.473 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 18:40:01.473 INFO [stderr] 
Nov 28 18:40:01.530 INFO [stderr] warning: variable does not need to be mutable
Nov 28 18:40:01.530 INFO [stderr]    --> src/lib.rs:279:13
Nov 28 18:40:01.530 INFO [stderr]     |
Nov 28 18:40:01.530 INFO [stderr] 279 |         let mut matrix = Matrix::new(keys);
Nov 28 18:40:01.530 INFO [stderr]     |             ----^^^^^^
Nov 28 18:40:01.530 INFO [stderr]     |             |
Nov 28 18:40:01.530 INFO [stderr]     |             help: remove this `mut`
Nov 28 18:40:01.530 INFO [stderr]     |
Nov 28 18:40:01.530 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 18:40:01.530 INFO [stderr] 
Nov 28 18:40:01.542 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 18:40:01.542 INFO [stderr]    --> src/lib.rs:358:13
Nov 28 18:40:01.542 INFO [stderr]     |
Nov 28 18:40:01.542 INFO [stderr] 358 |             group.assign();
Nov 28 18:40:01.542 INFO [stderr]     |             ^^^^^^^^^^^^^^^
Nov 28 18:40:01.542 INFO [stderr]     |
Nov 28 18:40:01.542 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 18:40:01.542 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 18:40:01.542 INFO [stderr] 
Nov 28 18:40:03.078 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.42s
Nov 28 18:40:03.083 INFO [stderr] su: No module specific data is present
Nov 28 18:40:03.625 INFO running `"docker" "inspect" "f51e3f529e97a128f38e503559948810a7fb2062b98e1fb520ec5ba295f2aa3e"`
Nov 28 18:40:04.037 INFO running `"docker" "rm" "-f" "f51e3f529e97a128f38e503559948810a7fb2062b98e1fb520ec5ba295f2aa3e"`
Nov 28 18:40:04.400 INFO [stdout] f51e3f529e97a128f38e503559948810a7fb2062b98e1fb520ec5ba295f2aa3e