Sep 06 04:00:24.174 INFO checking matrix_display-0.2.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 04:00:24.174 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 04:00:24.174 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-3/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 04:00:24.383 INFO blam! 3733dd10cece78f40eff00cb8df95231b05916c5165d9b21ab794a7cb7a6eb3b
Sep 06 04:00:24.388 INFO running `"docker" "start" "-a" "3733dd10cece78f40eff00cb8df95231b05916c5165d9b21ab794a7cb7a6eb3b"`
Sep 06 04:00:25.400 INFO kablam! usermod: no changes
Sep 06 04:00:25.432 INFO kablam!     Checking matrix_display v0.2.0 (file:///source)
Sep 06 04:00:25.747 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 06 04:00:25.747 INFO kablam!    --> src/lib.rs:258:9
Sep 06 04:00:25.747 INFO kablam!     |
Sep 06 04:00:25.747 INFO kablam! 258 | /         self.mat
Sep 06 04:00:25.747 INFO kablam! 259 | |             .enumerate_cells()
Sep 06 04:00:25.747 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 06 04:00:25.747 INFO kablam! 261 | |             .into_iter()
Sep 06 04:00:25.747 INFO kablam! ...   |
Sep 06 04:00:25.747 INFO kablam! 269 | |             })
Sep 06 04:00:25.747 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 06 04:00:25.747 INFO kablam!     | |_________________________________^
Sep 06 04:00:25.747 INFO kablam!     |
Sep 06 04:00:25.747 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 06 04:00:25.747 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 06 04:00:25.747 INFO kablam! 
Sep 06 04:00:26.032 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 06 04:00:26.032 INFO kablam!    --> src/lib.rs:258:9
Sep 06 04:00:26.032 INFO kablam!     |
Sep 06 04:00:26.032 INFO kablam! 258 | /         self.mat
Sep 06 04:00:26.032 INFO kablam! 259 | |             .enumerate_cells()
Sep 06 04:00:26.032 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 06 04:00:26.032 INFO kablam! 261 | |             .into_iter()
Sep 06 04:00:26.032 INFO kablam! ...   |
Sep 06 04:00:26.033 INFO kablam! 269 | |             })
Sep 06 04:00:26.033 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 06 04:00:26.033 INFO kablam!     | |_________________________________^
Sep 06 04:00:26.033 INFO kablam!     |
Sep 06 04:00:26.033 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 06 04:00:26.033 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 06 04:00:26.033 INFO kablam! 
Sep 06 04:00:26.218 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Sep 06 04:00:26.220 INFO kablam! su: No module specific data is present
Sep 06 04:00:26.761 INFO running `"docker" "rm" "-f" "3733dd10cece78f40eff00cb8df95231b05916c5165d9b21ab794a7cb7a6eb3b"`
Sep 06 04:00:26.814 INFO blam! 3733dd10cece78f40eff00cb8df95231b05916c5165d9b21ab794a7cb7a6eb3b