Dec 06 03:23:25.587 INFO testing conundrumer/crossword against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 03:23:25.587 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 03:23:26.067 INFO [stdout] 1a5f6bba855957edb33808b2af03b31366fee6b827b69f7b053727d60f19b3e6
Dec 06 03:23:26.069 INFO running `"docker" "start" "-a" "1a5f6bba855957edb33808b2af03b31366fee6b827b69f7b053727d60f19b3e6"`
Dec 06 03:23:27.299 INFO [stderr] usermod: no changes
Dec 06 03:23:27.348 INFO [stderr]    Compiling crossword v0.1.0 (/source)
Dec 06 03:23:27.668 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 06 03:23:27.668 INFO [stderr]   --> src/grid.rs:25:21
Dec 06 03:23:27.668 INFO [stderr]    |
Dec 06 03:23:27.668 INFO [stderr] 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Dec 06 03:23:27.668 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 06 03:23:27.668 INFO [stderr]    |
Dec 06 03:23:27.668 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 06 03:23:27.668 INFO [stderr] 
Dec 06 03:23:27.971 INFO [stderr] warning: variable does not need to be mutable
Dec 06 03:23:27.972 INFO [stderr]    --> src/filter.rs:115:17
Dec 06 03:23:27.972 INFO [stderr]     |
Dec 06 03:23:27.972 INFO [stderr] 115 |             let mut seen = &mut self.seen.borrow_mut();
Dec 06 03:23:27.972 INFO [stderr]     |                 ----^^^^
Dec 06 03:23:27.972 INFO [stderr]     |                 |
Dec 06 03:23:27.972 INFO [stderr]     |                 help: remove this `mut`
Dec 06 03:23:27.972 INFO [stderr]     |
Dec 06 03:23:27.972 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 06 03:23:27.972 INFO [stderr] 
Dec 06 03:23:28.005 INFO [stderr] warning: type alias is never used: `GridCellPos`
Dec 06 03:23:28.005 INFO [stderr]  --> src/grid_cell.rs:4:1
Dec 06 03:23:28.006 INFO [stderr]   |
Dec 06 03:23:28.006 INFO [stderr] 4 | type GridCellPos = (GridCell, (i8, i8));
Dec 06 03:23:28.006 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 03:23:28.006 INFO [stderr]   |
Dec 06 03:23:28.006 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 03:23:28.006 INFO [stderr] 
Dec 06 03:23:28.006 INFO [stderr] warning: method is never used: `is_valid`
Dec 06 03:23:28.006 INFO [stderr]   --> src/crossword.rs:38:5
Dec 06 03:23:28.006 INFO [stderr]    |
Dec 06 03:23:28.006 INFO [stderr] 38 |     pub fn is_valid(&self) -> bool {
Dec 06 03:23:28.006 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 03:23:28.006 INFO [stderr] 
Dec 06 03:23:28.006 INFO [stderr] warning: method is never used: `iter`
Dec 06 03:23:28.006 INFO [stderr]   --> src/generate.rs:41:5
Dec 06 03:23:28.006 INFO [stderr]    |
Dec 06 03:23:28.006 INFO [stderr] 41 |     pub fn iter<'b>(&'b self) -> Box<Iterator<Item=Crossword> + 'b> {
Dec 06 03:23:28.006 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 03:23:28.006 INFO [stderr] 
Dec 06 03:23:28.006 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 06 03:23:28.006 INFO [stderr]  --> src/main.rs:1:12
Dec 06 03:23:28.006 INFO [stderr]   |
Dec 06 03:23:28.006 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 06 03:23:28.006 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 03:23:28.006 INFO [stderr]   |
Dec 06 03:23:28.006 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 03:23:28.006 INFO [stderr] 
Dec 06 03:23:30.222 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
Dec 06 03:23:30.223 INFO [stderr] su: No module specific data is present
Dec 06 03:23:31.005 INFO running `"docker" "inspect" "1a5f6bba855957edb33808b2af03b31366fee6b827b69f7b053727d60f19b3e6"`
Dec 06 03:23:31.280 INFO running `"docker" "rm" "-f" "1a5f6bba855957edb33808b2af03b31366fee6b827b69f7b053727d60f19b3e6"`
Dec 06 03:23:31.668 INFO [stdout] 1a5f6bba855957edb33808b2af03b31366fee6b827b69f7b053727d60f19b3e6
Dec 06 03:23:31.668 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 03:23:32.129 INFO [stdout] f5e163416e47e113594a9b6cfaf4374fdd5b3b700596b91d27e4cbd98fa238a9
Dec 06 03:23:32.132 INFO running `"docker" "start" "-a" "f5e163416e47e113594a9b6cfaf4374fdd5b3b700596b91d27e4cbd98fa238a9"`
Dec 06 03:23:32.916 INFO [stderr] usermod: no changes
Dec 06 03:23:32.948 INFO [stderr]    Compiling crossword v0.1.0 (/source)
Dec 06 03:23:33.348 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 06 03:23:33.348 INFO [stderr]   --> src/grid.rs:25:21
Dec 06 03:23:33.348 INFO [stderr]    |
Dec 06 03:23:33.348 INFO [stderr] 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Dec 06 03:23:33.348 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 06 03:23:33.348 INFO [stderr]    |
Dec 06 03:23:33.348 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 06 03:23:33.348 INFO [stderr] 
Dec 06 03:23:33.817 INFO [stderr] warning: variable does not need to be mutable
Dec 06 03:23:33.817 INFO [stderr]    --> src/filter.rs:115:17
Dec 06 03:23:33.817 INFO [stderr]     |
Dec 06 03:23:33.817 INFO [stderr] 115 |             let mut seen = &mut self.seen.borrow_mut();
Dec 06 03:23:33.817 INFO [stderr]     |                 ----^^^^
Dec 06 03:23:33.817 INFO [stderr]     |                 |
Dec 06 03:23:33.818 INFO [stderr]     |                 help: remove this `mut`
Dec 06 03:23:33.818 INFO [stderr]     |
Dec 06 03:23:33.818 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 06 03:23:33.818 INFO [stderr] 
Dec 06 03:23:33.872 INFO [stderr] warning: type alias is never used: `GridCellPos`
Dec 06 03:23:33.872 INFO [stderr]  --> src/grid_cell.rs:4:1
Dec 06 03:23:33.872 INFO [stderr]   |
Dec 06 03:23:33.872 INFO [stderr] 4 | type GridCellPos = (GridCell, (i8, i8));
Dec 06 03:23:33.872 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 03:23:33.872 INFO [stderr]   |
Dec 06 03:23:33.872 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 03:23:33.872 INFO [stderr] 
Dec 06 03:23:33.873 INFO [stderr] warning: type alias is never used: `WordPosition`
Dec 06 03:23:33.873 INFO [stderr]    --> src/generate.rs:185:5
Dec 06 03:23:33.873 INFO [stderr]     |
Dec 06 03:23:33.873 INFO [stderr] 185 |     type WordPosition = (&'static str, Position);
Dec 06 03:23:33.873 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 03:23:33.873 INFO [stderr] 
Dec 06 03:23:33.873 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 06 03:23:33.873 INFO [stderr]  --> src/main.rs:1:12
Dec 06 03:23:33.873 INFO [stderr]   |
Dec 06 03:23:33.873 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 06 03:23:33.873 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 03:23:33.873 INFO [stderr]   |
Dec 06 03:23:33.873 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 03:23:33.873 INFO [stderr] 
Dec 06 03:23:35.854 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
Dec 06 03:23:35.857 INFO [stderr] su: No module specific data is present
Dec 06 03:23:36.279 INFO running `"docker" "inspect" "f5e163416e47e113594a9b6cfaf4374fdd5b3b700596b91d27e4cbd98fa238a9"`
Dec 06 03:23:36.402 INFO running `"docker" "rm" "-f" "f5e163416e47e113594a9b6cfaf4374fdd5b3b700596b91d27e4cbd98fa238a9"`
Dec 06 03:23:36.544 INFO [stdout] f5e163416e47e113594a9b6cfaf4374fdd5b3b700596b91d27e4cbd98fa238a9
Dec 06 03:23:36.550 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 03:23:36.853 INFO [stdout] ba9bd56667e22dfa4e8375c7689d320bc75b1d78726b29db9518a8639f4b87e4
Dec 06 03:23:36.855 INFO running `"docker" "start" "-a" "ba9bd56667e22dfa4e8375c7689d320bc75b1d78726b29db9518a8639f4b87e4"`
Dec 06 03:23:38.303 INFO [stderr] usermod: no changes
Dec 06 03:23:38.345 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 06 03:23:38.360 INFO [stdout] 
Dec 06 03:23:38.360 INFO [stdout] running 21 tests
Dec 06 03:23:38.360 INFO [stderr]      Running /target/debug/deps/crossword-21171c3c30c40e15
Dec 06 03:23:38.412 INFO [stdout] test crossword::tests::bounding_box ... ok
Dec 06 03:23:38.412 INFO [stdout] test bench::generate_1 ... ok
Dec 06 03:23:38.418 INFO [stdout] test crossword::tests::display ... ok
Dec 06 03:23:38.418 INFO [stdout] test crossword::tests::is_valid ... ok
Dec 06 03:23:38.418 INFO [stdout] test crossword::tests::is_valid_diagonal ... ok
Dec 06 03:23:38.418 INFO [stdout] test crossword::tests::is_invalid ... ok
Dec 06 03:23:38.432 INFO [stdout] test crossword::tests::letters ... ok
Dec 06 03:23:38.432 INFO [stdout] test crossword::tests::num_overlaps ... ok
Dec 06 03:23:38.432 INFO [stdout] test crossword::tests::is_invalid_touching ... ok
Dec 06 03:23:38.432 INFO [stdout] test generate::tests::display ... ok
Dec 06 03:23:38.440 INFO [stdout] test crossword::tests::is_invalid_adjacent ... ok
Dec 06 03:23:38.440 INFO [stdout] test generate::tests::letter_block_collision ... ok
Dec 06 03:23:38.440 INFO [stdout] test grid_cell::tests::letter_block_collision ... ok
Dec 06 03:23:38.440 INFO [stdout] test rand::tests::rand_range ... ok
Dec 06 03:23:38.448 INFO [stdout] test word_placements::tests::hash ... ok
Dec 06 03:23:38.448 INFO [stdout] test word_placements::tests::new ... ok
Dec 06 03:23:38.448 INFO [stdout] test word_placements::tests::set ... ok
Dec 06 03:23:38.477 INFO [stdout] test generate::tests::test_gen_iter ... ok
Dec 06 03:23:38.617 INFO [stdout] test bench::generate_2 ... ok
Dec 06 03:23:39.312 INFO [stdout] test bench::generate_3 ... ok
Dec 06 03:23:41.652 INFO [stdout] test bench::generate_4 ... ok
Dec 06 03:23:41.652 INFO [stdout] 
Dec 06 03:23:41.652 INFO [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 03:23:41.652 INFO [stdout] 
Dec 06 03:23:41.654 INFO [stderr] su: No module specific data is present
Dec 06 03:23:42.148 INFO running `"docker" "inspect" "ba9bd56667e22dfa4e8375c7689d320bc75b1d78726b29db9518a8639f4b87e4"`
Dec 06 03:23:42.264 INFO running `"docker" "rm" "-f" "ba9bd56667e22dfa4e8375c7689d320bc75b1d78726b29db9518a8639f4b87e4"`
Dec 06 03:23:42.413 INFO [stdout] ba9bd56667e22dfa4e8375c7689d320bc75b1d78726b29db9518a8639f4b87e4