Sep 01 14:25:04.638 INFO checking matrix_display-0.2.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 14:25:04.638 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 14:25:04.639 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-1/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 14:25:04.823 INFO blam! 13d7525d688a656404a03f8784185604166bdd77710c120a52c6453a73ffa905
Sep 01 14:25:04.825 INFO running `"docker" "start" "-a" "13d7525d688a656404a03f8784185604166bdd77710c120a52c6453a73ffa905"`
Sep 01 14:25:05.554 INFO kablam!     Checking matrix_display v0.2.0 (file:///source)
Sep 01 14:25:06.445 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 01 14:25:06.445 INFO kablam!    --> src/lib.rs:258:9
Sep 01 14:25:06.445 INFO kablam!     |
Sep 01 14:25:06.445 INFO kablam! 258 | /         self.mat
Sep 01 14:25:06.445 INFO kablam! 259 | |             .enumerate_cells()
Sep 01 14:25:06.445 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 01 14:25:06.445 INFO kablam! 261 | |             .into_iter()
Sep 01 14:25:06.445 INFO kablam! ...   |
Sep 01 14:25:06.445 INFO kablam! 269 | |             })
Sep 01 14:25:06.445 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 01 14:25:06.445 INFO kablam!     | |_________________________________^
Sep 01 14:25:06.445 INFO kablam!     |
Sep 01 14:25:06.445 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 01 14:25:06.445 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 01 14:25:06.445 INFO kablam! 
Sep 01 14:25:07.042 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 01 14:25:07.042 INFO kablam!    --> src/lib.rs:258:9
Sep 01 14:25:07.042 INFO kablam!     |
Sep 01 14:25:07.042 INFO kablam! 258 | /         self.mat
Sep 01 14:25:07.042 INFO kablam! 259 | |             .enumerate_cells()
Sep 01 14:25:07.042 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 01 14:25:07.042 INFO kablam! 261 | |             .into_iter()
Sep 01 14:25:07.042 INFO kablam! ...   |
Sep 01 14:25:07.042 INFO kablam! 269 | |             })
Sep 01 14:25:07.042 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 01 14:25:07.042 INFO kablam!     | |_________________________________^
Sep 01 14:25:07.042 INFO kablam!     |
Sep 01 14:25:07.042 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 01 14:25:07.042 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 01 14:25:07.042 INFO kablam! 
Sep 01 14:25:07.231 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
Sep 01 14:25:07.234 INFO kablam! su: No module specific data is present
Sep 01 14:25:07.779 INFO running `"docker" "rm" "-f" "13d7525d688a656404a03f8784185604166bdd77710c120a52c6453a73ffa905"`
Sep 01 14:25:07.868 INFO blam! 13d7525d688a656404a03f8784185604166bdd77710c120a52c6453a73ffa905