Sep 21 07:12:59.509 INFO checking matrix_display-0.2.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 07:12:59.509 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 07:12:59.509 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-3/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 07:12:59.703 INFO blam! d78cb56e6340b8433d8f257327bf8c1bbe868e2566355dce680df8d60536f459
Sep 21 07:12:59.704 INFO running `"docker" "start" "-a" "d78cb56e6340b8433d8f257327bf8c1bbe868e2566355dce680df8d60536f459"`
Sep 21 07:13:00.873 INFO kablam! usermod: no changes
Sep 21 07:13:00.907 INFO kablam!     Checking matrix_display v0.2.0 (/source)
Sep 21 07:13:01.204 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 21 07:13:01.204 INFO kablam!    --> src/lib.rs:258:9
Sep 21 07:13:01.204 INFO kablam!     |
Sep 21 07:13:01.204 INFO kablam! 258 | /         self.mat
Sep 21 07:13:01.204 INFO kablam! 259 | |             .enumerate_cells()
Sep 21 07:13:01.204 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 21 07:13:01.204 INFO kablam! 261 | |             .into_iter()
Sep 21 07:13:01.204 INFO kablam! ...   |
Sep 21 07:13:01.204 INFO kablam! 269 | |             })
Sep 21 07:13:01.204 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 21 07:13:01.204 INFO kablam!     | |_________________________________^
Sep 21 07:13:01.204 INFO kablam!     |
Sep 21 07:13:01.204 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 21 07:13:01.204 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 21 07:13:01.204 INFO kablam! 
Sep 21 07:13:01.466 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 21 07:13:01.466 INFO kablam!    --> src/lib.rs:258:9
Sep 21 07:13:01.466 INFO kablam!     |
Sep 21 07:13:01.466 INFO kablam! 258 | /         self.mat
Sep 21 07:13:01.466 INFO kablam! 259 | |             .enumerate_cells()
Sep 21 07:13:01.466 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 21 07:13:01.466 INFO kablam! 261 | |             .into_iter()
Sep 21 07:13:01.466 INFO kablam! ...   |
Sep 21 07:13:01.466 INFO kablam! 269 | |             })
Sep 21 07:13:01.466 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 21 07:13:01.466 INFO kablam!     | |_________________________________^
Sep 21 07:13:01.466 INFO kablam!     |
Sep 21 07:13:01.466 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 21 07:13:01.466 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 21 07:13:01.466 INFO kablam! 
Sep 21 07:13:01.630 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Sep 21 07:13:01.635 INFO kablam! su: No module specific data is present
Sep 21 07:13:02.272 INFO running `"docker" "rm" "-f" "d78cb56e6340b8433d8f257327bf8c1bbe868e2566355dce680df8d60536f459"`
Sep 21 07:13:02.373 INFO blam! d78cb56e6340b8433d8f257327bf8c1bbe868e2566355dce680df8d60536f459