Sep 10 10:29:52.132 INFO checking rusty-santa-0.1.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 10:29:52.132 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 10:29:52.132 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/try#3a2610c2a16575649896925631bf8cec4f4b1961:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 10:29:52.274 INFO blam! 9fbc6f4079d1c6ef2840c38dde37d2f5ccd6678f6c99359dcbed96d165a80250
Sep 10 10:29:52.276 INFO running `"docker" "start" "-a" "9fbc6f4079d1c6ef2840c38dde37d2f5ccd6678f6c99359dcbed96d165a80250"`
Sep 10 10:29:52.939 INFO kablam! usermod: no changes
Sep 10 10:29:52.977 INFO kablam!     Checking rusty-santa v0.1.0 (file:///source)
Sep 10 10:29:53.338 INFO kablam! warning: method is never used: `get`
Sep 10 10:29:53.338 INFO kablam!   --> src/lib.rs:64:5
Sep 10 10:29:53.338 INFO kablam!    |
Sep 10 10:29:53.338 INFO kablam! 64 |     pub fn get(&self, x: &str, y: &str) -> bool {
Sep 10 10:29:53.338 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 10:29:53.338 INFO kablam!    |
Sep 10 10:29:53.338 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 10:29:53.338 INFO kablam! 
Sep 10 10:29:53.338 INFO kablam! warning: method is never used: `size`
Sep 10 10:29:53.338 INFO kablam!    --> src/lib.rs:103:5
Sep 10 10:29:53.338 INFO kablam!     |
Sep 10 10:29:53.338 INFO kablam! 103 |     pub fn size(&self) -> usize {
Sep 10 10:29:53.338 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 10:29:53.338 INFO kablam! 
Sep 10 10:29:53.369 INFO kablam! warning: unused variable: `i`
Sep 10 10:29:53.369 INFO kablam!    --> src/lib.rs:357:13
Sep 10 10:29:53.369 INFO kablam!     |
Sep 10 10:29:53.369 INFO kablam! 357 |         for i in 0..1000 {
Sep 10 10:29:53.369 INFO kablam!     |             ^ help: consider using `_i` instead
Sep 10 10:29:53.374 INFO kablam!     |
Sep 10 10:29:53.374 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 10 10:29:53.374 INFO kablam! 
Sep 10 10:29:53.430 INFO kablam! warning: variable does not need to be mutable
Sep 10 10:29:53.430 INFO kablam!    --> src/lib.rs:279:13
Sep 10 10:29:53.430 INFO kablam!     |
Sep 10 10:29:53.430 INFO kablam! 279 |         let mut matrix = Matrix::new(keys);
Sep 10 10:29:53.430 INFO kablam!     |             ----^^^^^^
Sep 10 10:29:53.430 INFO kablam!     |             |
Sep 10 10:29:53.430 INFO kablam!     |             help: remove this `mut`
Sep 10 10:29:53.430 INFO kablam!     |
Sep 10 10:29:53.430 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 10 10:29:53.430 INFO kablam! 
Sep 10 10:29:53.455 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 10:29:53.455 INFO kablam!    --> src/lib.rs:358:13
Sep 10 10:29:53.456 INFO kablam!     |
Sep 10 10:29:53.456 INFO kablam! 358 |             group.assign();
Sep 10 10:29:53.456 INFO kablam!     |             ^^^^^^^^^^^^^^^
Sep 10 10:29:53.456 INFO kablam!     |
Sep 10 10:29:53.456 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 10:29:53.456 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 10:29:53.456 INFO kablam! 
Sep 10 10:29:53.774 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Sep 10 10:29:53.779 INFO kablam! su: No module specific data is present
Sep 10 10:29:54.360 INFO running `"docker" "rm" "-f" "9fbc6f4079d1c6ef2840c38dde37d2f5ccd6678f6c99359dcbed96d165a80250"`
Sep 10 10:29:54.482 INFO blam! 9fbc6f4079d1c6ef2840c38dde37d2f5ccd6678f6c99359dcbed96d165a80250