Sep 06 00:37:38.128 INFO checking rusty-santa-0.1.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 00:37:38.128 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 00:37:38.128 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-7/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 00:37:38.329 INFO blam! 2eab9be1a90ae56b1519d54d3b02e2db0e80cddbe28d24cda3f4941da7205ef5
Sep 06 00:37:38.331 INFO running `"docker" "start" "-a" "2eab9be1a90ae56b1519d54d3b02e2db0e80cddbe28d24cda3f4941da7205ef5"`
Sep 06 00:37:39.461 INFO kablam! usermod: no changes
Sep 06 00:37:39.561 INFO kablam!     Checking rusty-santa v0.1.0 (file:///source)
Sep 06 00:37:40.074 INFO kablam! warning: method is never used: `get`
Sep 06 00:37:40.074 INFO kablam!   --> src/lib.rs:64:5
Sep 06 00:37:40.074 INFO kablam!    |
Sep 06 00:37:40.074 INFO kablam! 64 |     pub fn get(&self, x: &str, y: &str) -> bool {
Sep 06 00:37:40.074 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 00:37:40.074 INFO kablam!    |
Sep 06 00:37:40.074 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 06 00:37:40.074 INFO kablam! 
Sep 06 00:37:40.074 INFO kablam! warning: method is never used: `size`
Sep 06 00:37:40.074 INFO kablam!    --> src/lib.rs:103:5
Sep 06 00:37:40.074 INFO kablam!     |
Sep 06 00:37:40.074 INFO kablam! 103 |     pub fn size(&self) -> usize {
Sep 06 00:37:40.074 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 00:37:40.074 INFO kablam! 
Sep 06 00:37:40.213 INFO kablam! warning: unused variable: `i`
Sep 06 00:37:40.213 INFO kablam!    --> src/lib.rs:357:13
Sep 06 00:37:40.213 INFO kablam!     |
Sep 06 00:37:40.213 INFO kablam! 357 |         for i in 0..1000 {
Sep 06 00:37:40.213 INFO kablam!     |             ^ help: consider using `_i` instead
Sep 06 00:37:40.213 INFO kablam!     |
Sep 06 00:37:40.213 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 06 00:37:40.213 INFO kablam! 
Sep 06 00:37:40.250 INFO kablam! warning: variable does not need to be mutable
Sep 06 00:37:40.250 INFO kablam!    --> src/lib.rs:279:13
Sep 06 00:37:40.250 INFO kablam!     |
Sep 06 00:37:40.250 INFO kablam! 279 |         let mut matrix = Matrix::new(keys);
Sep 06 00:37:40.250 INFO kablam!     |             ----^^^^^^
Sep 06 00:37:40.250 INFO kablam!     |             |
Sep 06 00:37:40.250 INFO kablam!     |             help: remove this `mut`
Sep 06 00:37:40.250 INFO kablam!     |
Sep 06 00:37:40.250 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 06 00:37:40.250 INFO kablam! 
Sep 06 00:37:40.266 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 00:37:40.266 INFO kablam!    --> src/lib.rs:358:13
Sep 06 00:37:40.266 INFO kablam!     |
Sep 06 00:37:40.266 INFO kablam! 358 |             group.assign();
Sep 06 00:37:40.266 INFO kablam!     |             ^^^^^^^^^^^^^^^
Sep 06 00:37:40.266 INFO kablam!     |
Sep 06 00:37:40.266 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 06 00:37:40.266 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 00:37:40.266 INFO kablam! 
Sep 06 00:37:40.718 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
Sep 06 00:37:40.722 INFO kablam! su: No module specific data is present
Sep 06 00:37:41.570 INFO running `"docker" "rm" "-f" "2eab9be1a90ae56b1519d54d3b02e2db0e80cddbe28d24cda3f4941da7205ef5"`
Sep 06 00:37:41.684 INFO blam! 2eab9be1a90ae56b1519d54d3b02e2db0e80cddbe28d24cda3f4941da7205ef5