Sep 06 00:37:38.561 INFO checking rusty-santa-0.1.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 00:37:38.561 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 00:37:38.561 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 00:37:38.769 INFO blam! 979d546799c8b7d9bf4646549f9b7e5a60cfebef375d73264b5c40e8a9a85c67
Sep 06 00:37:38.774 INFO running `"docker" "start" "-a" "979d546799c8b7d9bf4646549f9b7e5a60cfebef375d73264b5c40e8a9a85c67"`
Sep 06 00:37:39.942 INFO kablam! usermod: no changes
Sep 06 00:37:40.038 INFO kablam!     Checking rusty-santa v0.1.0 (file:///source)
Sep 06 00:37:40.494 INFO kablam! warning: method is never used: `get`
Sep 06 00:37:40.494 INFO kablam!   --> src/lib.rs:64:5
Sep 06 00:37:40.494 INFO kablam!    |
Sep 06 00:37:40.494 INFO kablam! 64 |     pub fn get(&self, x: &str, y: &str) -> bool {
Sep 06 00:37:40.494 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 00:37:40.494 INFO kablam!    |
Sep 06 00:37:40.494 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 06 00:37:40.494 INFO kablam! 
Sep 06 00:37:40.494 INFO kablam! warning: method is never used: `size`
Sep 06 00:37:40.494 INFO kablam!    --> src/lib.rs:103:5
Sep 06 00:37:40.494 INFO kablam!     |
Sep 06 00:37:40.494 INFO kablam! 103 |     pub fn size(&self) -> usize {
Sep 06 00:37:40.494 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 00:37:40.494 INFO kablam! 
Sep 06 00:37:40.950 INFO kablam! warning: unused variable: `i`
Sep 06 00:37:40.950 INFO kablam!    --> src/lib.rs:357:13
Sep 06 00:37:40.950 INFO kablam!     |
Sep 06 00:37:40.950 INFO kablam! 357 |         for i in 0..1000 {
Sep 06 00:37:40.950 INFO kablam!     |             ^ help: consider using `_i` instead
Sep 06 00:37:40.950 INFO kablam!     |
Sep 06 00:37:40.950 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 06 00:37:40.950 INFO kablam! 
Sep 06 00:37:40.982 INFO kablam! warning: variable does not need to be mutable
Sep 06 00:37:40.982 INFO kablam!    --> src/lib.rs:279:13
Sep 06 00:37:40.982 INFO kablam!     |
Sep 06 00:37:40.982 INFO kablam! 279 |         let mut matrix = Matrix::new(keys);
Sep 06 00:37:40.982 INFO kablam!     |             ----^^^^^^
Sep 06 00:37:40.982 INFO kablam!     |             |
Sep 06 00:37:40.982 INFO kablam!     |             help: remove this `mut`
Sep 06 00:37:40.982 INFO kablam!     |
Sep 06 00:37:40.982 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 06 00:37:40.982 INFO kablam! 
Sep 06 00:37:40.993 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 00:37:40.993 INFO kablam!    --> src/lib.rs:358:13
Sep 06 00:37:40.993 INFO kablam!     |
Sep 06 00:37:40.993 INFO kablam! 358 |             group.assign();
Sep 06 00:37:40.993 INFO kablam!     |             ^^^^^^^^^^^^^^^
Sep 06 00:37:40.993 INFO kablam!     |
Sep 06 00:37:40.993 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 06 00:37:40.993 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 00:37:40.993 INFO kablam! 
Sep 06 00:37:41.216 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
Sep 06 00:37:41.216 INFO kablam! su: No module specific data is present
Sep 06 00:37:41.908 INFO running `"docker" "rm" "-f" "979d546799c8b7d9bf4646549f9b7e5a60cfebef375d73264b5c40e8a9a85c67"`
Sep 06 00:37:42.023 INFO blam! 979d546799c8b7d9bf4646549f9b7e5a60cfebef375d73264b5c40e8a9a85c67