Sep 10 14:49:42.199 INFO checking matrix_display-0.2.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 14:49:42.199 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 14:49:42.199 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-1/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 14:49:42.365 INFO blam! 70bcdbcd73ab1b2598abf7c67e7f547c1fb90b349bd8c1c1a3b19a9f698ec18d
Sep 10 14:49:42.367 INFO running `"docker" "start" "-a" "70bcdbcd73ab1b2598abf7c67e7f547c1fb90b349bd8c1c1a3b19a9f698ec18d"`
Sep 10 14:49:43.695 INFO kablam! usermod: no changes
Sep 10 14:49:43.722 INFO kablam!     Checking matrix_display v0.2.0 (file:///source)
Sep 10 14:49:44.068 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 10 14:49:44.068 INFO kablam!    --> src/lib.rs:258:9
Sep 10 14:49:44.068 INFO kablam!     |
Sep 10 14:49:44.068 INFO kablam! 258 | /         self.mat
Sep 10 14:49:44.068 INFO kablam! 259 | |             .enumerate_cells()
Sep 10 14:49:44.068 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 10 14:49:44.068 INFO kablam! 261 | |             .into_iter()
Sep 10 14:49:44.068 INFO kablam! ...   |
Sep 10 14:49:44.068 INFO kablam! 269 | |             })
Sep 10 14:49:44.068 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 10 14:49:44.068 INFO kablam!     | |_________________________________^
Sep 10 14:49:44.068 INFO kablam!     |
Sep 10 14:49:44.068 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 14:49:44.068 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 10 14:49:44.068 INFO kablam! 
Sep 10 14:49:44.239 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 10 14:49:44.239 INFO kablam!    --> src/lib.rs:258:9
Sep 10 14:49:44.239 INFO kablam!     |
Sep 10 14:49:44.239 INFO kablam! 258 | /         self.mat
Sep 10 14:49:44.239 INFO kablam! 259 | |             .enumerate_cells()
Sep 10 14:49:44.239 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 10 14:49:44.239 INFO kablam! 261 | |             .into_iter()
Sep 10 14:49:44.239 INFO kablam! ...   |
Sep 10 14:49:44.239 INFO kablam! 269 | |             })
Sep 10 14:49:44.239 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 10 14:49:44.239 INFO kablam!     | |_________________________________^
Sep 10 14:49:44.239 INFO kablam!     |
Sep 10 14:49:44.239 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 14:49:44.239 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 10 14:49:44.239 INFO kablam! 
Sep 10 14:49:44.337 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
Sep 10 14:49:44.340 INFO kablam! su: No module specific data is present
Sep 10 14:49:45.071 INFO running `"docker" "rm" "-f" "70bcdbcd73ab1b2598abf7c67e7f547c1fb90b349bd8c1c1a3b19a9f698ec18d"`
Sep 10 14:49:45.157 INFO blam! 70bcdbcd73ab1b2598abf7c67e7f547c1fb90b349bd8c1c1a3b19a9f698ec18d