Aug 30 11:32:59.561 INFO checking matrix_display-0.2.0 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707 Aug 30 11:32:59.561 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets Aug 30 11:32:59.561 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-1/try#2d477f9981361618ac78253c28051a66b6cea125:/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 +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"` Aug 30 11:32:59.723 INFO blam! 52fbd3ad2ff11e221ec95506a9dbe14c61e7b30e2325358ca90bda8853bea2da Aug 30 11:32:59.725 INFO running `"docker" "start" "-a" "52fbd3ad2ff11e221ec95506a9dbe14c61e7b30e2325358ca90bda8853bea2da"` Aug 30 11:33:00.551 INFO kablam! Checking matrix_display v0.2.0 (file:///source) Aug 30 11:33:01.465 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used Aug 30 11:33:01.465 INFO kablam! --> src/lib.rs:258:9 Aug 30 11:33:01.465 INFO kablam! | Aug 30 11:33:01.465 INFO kablam! 258 | / self.mat Aug 30 11:33:01.465 INFO kablam! 259 | | .enumerate_cells() Aug 30 11:33:01.465 INFO kablam! 260 | | .chunks(self.n_cols()) Aug 30 11:33:01.465 INFO kablam! 261 | | .into_iter() Aug 30 11:33:01.465 INFO kablam! ... | Aug 30 11:33:01.465 INFO kablam! 269 | | }) Aug 30 11:33:01.465 INFO kablam! 270 | | .collect::>(); Aug 30 11:33:01.465 INFO kablam! | |_________________________________^ Aug 30 11:33:01.466 INFO kablam! | Aug 30 11:33:01.466 INFO kablam! = note: #[warn(unused_must_use)] on by default Aug 30 11:33:01.466 INFO kablam! = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Aug 30 11:33:01.466 INFO kablam! Aug 30 11:33:02.256 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used Aug 30 11:33:02.256 INFO kablam! --> src/lib.rs:258:9 Aug 30 11:33:02.256 INFO kablam! | Aug 30 11:33:02.256 INFO kablam! 258 | / self.mat Aug 30 11:33:02.256 INFO kablam! 259 | | .enumerate_cells() Aug 30 11:33:02.256 INFO kablam! 260 | | .chunks(self.n_cols()) Aug 30 11:33:02.257 INFO kablam! 261 | | .into_iter() Aug 30 11:33:02.257 INFO kablam! ... | Aug 30 11:33:02.257 INFO kablam! 269 | | }) Aug 30 11:33:02.257 INFO kablam! 270 | | .collect::>(); Aug 30 11:33:02.257 INFO kablam! | |_________________________________^ Aug 30 11:33:02.257 INFO kablam! | Aug 30 11:33:02.258 INFO kablam! = note: #[warn(unused_must_use)] on by default Aug 30 11:33:02.258 INFO kablam! = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Aug 30 11:33:02.258 INFO kablam! Aug 30 11:33:02.336 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 1.80s Aug 30 11:33:02.338 INFO kablam! su: No module specific data is present Aug 30 11:33:02.789 INFO running `"docker" "rm" "-f" "52fbd3ad2ff11e221ec95506a9dbe14c61e7b30e2325358ca90bda8853bea2da"` Aug 30 11:33:02.876 INFO blam! 52fbd3ad2ff11e221ec95506a9dbe14c61e7b30e2325358ca90bda8853bea2da