Nov 17 06:11:54.575 INFO testing conundrumer/crossword against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 06:11:54.576 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 06:11:54.886 INFO [stdout] 14ac44546d9e749fe9d5c2451b4c0dbd1f55770fecd381aace178ef781590a2a
Nov 17 06:11:54.897 INFO running `"docker" "start" "-a" "14ac44546d9e749fe9d5c2451b4c0dbd1f55770fecd381aace178ef781590a2a"`
Nov 17 06:11:55.842 INFO [stderr] usermod: no changes
Nov 17 06:11:55.915 INFO [stderr]    Compiling crossword v0.1.0 (/source)
Nov 17 06:11:56.455 INFO [stderr] warning: unnecessary parentheses around function argument
Nov 17 06:11:56.455 INFO [stderr]   --> src/grid.rs:25:21
Nov 17 06:11:56.455 INFO [stderr]    |
Nov 17 06:11:56.455 INFO [stderr] 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Nov 17 06:11:56.455 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 06:11:56.455 INFO [stderr]    |
Nov 17 06:11:56.455 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 17 06:11:56.455 INFO [stderr] 
Nov 17 06:11:56.778 INFO [stderr] warning: variable does not need to be mutable
Nov 17 06:11:56.778 INFO [stderr]    --> src/filter.rs:115:17
Nov 17 06:11:56.778 INFO [stderr]     |
Nov 17 06:11:56.778 INFO [stderr] 115 |             let mut seen = &mut self.seen.borrow_mut();
Nov 17 06:11:56.778 INFO [stderr]     |                 ----^^^^
Nov 17 06:11:56.778 INFO [stderr]     |                 |
Nov 17 06:11:56.778 INFO [stderr]     |                 help: remove this `mut`
Nov 17 06:11:56.778 INFO [stderr]     |
Nov 17 06:11:56.778 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 17 06:11:56.778 INFO [stderr] 
Nov 17 06:11:56.823 INFO [stderr] warning: type alias is never used: `GridCellPos`
Nov 17 06:11:56.823 INFO [stderr]  --> src/grid_cell.rs:4:1
Nov 17 06:11:56.823 INFO [stderr]   |
Nov 17 06:11:56.823 INFO [stderr] 4 | type GridCellPos = (GridCell, (i8, i8));
Nov 17 06:11:56.823 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 06:11:56.823 INFO [stderr]   |
Nov 17 06:11:56.823 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 06:11:56.823 INFO [stderr] 
Nov 17 06:11:56.823 INFO [stderr] warning: method is never used: `is_valid`
Nov 17 06:11:56.823 INFO [stderr]   --> src/crossword.rs:38:5
Nov 17 06:11:56.823 INFO [stderr]    |
Nov 17 06:11:56.825 INFO [stderr] 38 |     pub fn is_valid(&self) -> bool {
Nov 17 06:11:56.825 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 06:11:56.825 INFO [stderr] 
Nov 17 06:11:56.825 INFO [stderr] warning: method is never used: `iter`
Nov 17 06:11:56.825 INFO [stderr]   --> src/generate.rs:41:5
Nov 17 06:11:56.825 INFO [stderr]    |
Nov 17 06:11:56.825 INFO [stderr] 41 |     pub fn iter<'b>(&'b self) -> Box<Iterator<Item=Crossword> + 'b> {
Nov 17 06:11:56.825 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 06:11:56.825 INFO [stderr] 
Nov 17 06:11:56.825 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 17 06:11:56.825 INFO [stderr]  --> src/main.rs:1:12
Nov 17 06:11:56.825 INFO [stderr]   |
Nov 17 06:11:56.825 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Nov 17 06:11:56.825 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 06:11:56.825 INFO [stderr]   |
Nov 17 06:11:56.825 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 17 06:11:56.825 INFO [stderr] 
Nov 17 06:12:00.047 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.15s
Nov 17 06:12:00.050 INFO [stderr] su: No module specific data is present
Nov 17 06:12:00.601 INFO running `"docker" "inspect" "14ac44546d9e749fe9d5c2451b4c0dbd1f55770fecd381aace178ef781590a2a"`
Nov 17 06:12:00.939 INFO running `"docker" "rm" "-f" "14ac44546d9e749fe9d5c2451b4c0dbd1f55770fecd381aace178ef781590a2a"`
Nov 17 06:12:01.187 INFO [stdout] 14ac44546d9e749fe9d5c2451b4c0dbd1f55770fecd381aace178ef781590a2a
Nov 17 06:12:01.197 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 06:12:01.651 INFO [stdout] dad5701f014bcfb9b0856c660b02228dfcb494c969e20be823ecc22259b85cdc
Nov 17 06:12:01.653 INFO running `"docker" "start" "-a" "dad5701f014bcfb9b0856c660b02228dfcb494c969e20be823ecc22259b85cdc"`
Nov 17 06:12:02.127 INFO [stderr] usermod: no changes
Nov 17 06:12:02.211 INFO [stderr]    Compiling crossword v0.1.0 (/source)
Nov 17 06:12:02.663 INFO [stderr] warning: unnecessary parentheses around function argument
Nov 17 06:12:02.663 INFO [stderr]   --> src/grid.rs:25:21
Nov 17 06:12:02.663 INFO [stderr]    |
Nov 17 06:12:02.663 INFO [stderr] 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Nov 17 06:12:02.663 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 06:12:02.663 INFO [stderr]    |
Nov 17 06:12:02.663 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 17 06:12:02.663 INFO [stderr] 
Nov 17 06:12:03.155 INFO [stderr] warning: variable does not need to be mutable
Nov 17 06:12:03.155 INFO [stderr]    --> src/filter.rs:115:17
Nov 17 06:12:03.155 INFO [stderr]     |
Nov 17 06:12:03.155 INFO [stderr] 115 |             let mut seen = &mut self.seen.borrow_mut();
Nov 17 06:12:03.155 INFO [stderr]     |                 ----^^^^
Nov 17 06:12:03.156 INFO [stderr]     |                 |
Nov 17 06:12:03.160 INFO [stderr]     |                 help: remove this `mut`
Nov 17 06:12:03.160 INFO [stderr]     |
Nov 17 06:12:03.160 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 17 06:12:03.160 INFO [stderr] 
Nov 17 06:12:03.216 INFO [stderr] warning: type alias is never used: `GridCellPos`
Nov 17 06:12:03.216 INFO [stderr]  --> src/grid_cell.rs:4:1
Nov 17 06:12:03.216 INFO [stderr]   |
Nov 17 06:12:03.216 INFO [stderr] 4 | type GridCellPos = (GridCell, (i8, i8));
Nov 17 06:12:03.216 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 06:12:03.216 INFO [stderr]   |
Nov 17 06:12:03.216 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 06:12:03.216 INFO [stderr] 
Nov 17 06:12:03.223 INFO [stderr] warning: type alias is never used: `WordPosition`
Nov 17 06:12:03.223 INFO [stderr]    --> src/generate.rs:185:5
Nov 17 06:12:03.223 INFO [stderr]     |
Nov 17 06:12:03.223 INFO [stderr] 185 |     type WordPosition = (&'static str, Position);
Nov 17 06:12:03.223 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 06:12:03.223 INFO [stderr] 
Nov 17 06:12:03.223 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 17 06:12:03.223 INFO [stderr]  --> src/main.rs:1:12
Nov 17 06:12:03.223 INFO [stderr]   |
Nov 17 06:12:03.223 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Nov 17 06:12:03.223 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 06:12:03.223 INFO [stderr]   |
Nov 17 06:12:03.223 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 17 06:12:03.223 INFO [stderr] 
Nov 17 06:12:05.968 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.80s
Nov 17 06:12:05.971 INFO [stderr] su: No module specific data is present
Nov 17 06:12:07.021 INFO running `"docker" "inspect" "dad5701f014bcfb9b0856c660b02228dfcb494c969e20be823ecc22259b85cdc"`
Nov 17 06:12:07.332 INFO running `"docker" "rm" "-f" "dad5701f014bcfb9b0856c660b02228dfcb494c969e20be823ecc22259b85cdc"`
Nov 17 06:12:07.627 INFO [stdout] dad5701f014bcfb9b0856c660b02228dfcb494c969e20be823ecc22259b85cdc
Nov 17 06:12:07.634 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 06:12:08.032 INFO [stdout] c1b0517baf2f455b2d3e22be2fc29428a507100b0d3eeb024d03010fda133bf3
Nov 17 06:12:08.035 INFO running `"docker" "start" "-a" "c1b0517baf2f455b2d3e22be2fc29428a507100b0d3eeb024d03010fda133bf3"`
Nov 17 06:12:08.836 INFO [stderr] usermod: no changes
Nov 17 06:12:08.864 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Nov 17 06:12:08.865 INFO [stderr]      Running /target/debug/deps/crossword-5e52a93ad04575c6
Nov 17 06:12:08.869 INFO [stdout] 
Nov 17 06:12:08.869 INFO [stdout] running 21 tests
Nov 17 06:12:08.870 INFO [stdout] test crossword::tests::display ... ok
Nov 17 06:12:08.891 INFO [stdout] test crossword::tests::is_invalid_touching ... ok
Nov 17 06:12:08.891 INFO [stdout] test crossword::tests::bounding_box ... ok
Nov 17 06:12:08.891 INFO [stdout] test bench::generate_1 ... ok
Nov 17 06:12:08.891 INFO [stdout] test crossword::tests::is_invalid ... ok
Nov 17 06:12:08.906 INFO [stdout] test crossword::tests::is_invalid_adjacent ... ok
Nov 17 06:12:08.906 INFO [stdout] test crossword::tests::is_valid_diagonal ... ok
Nov 17 06:12:08.906 INFO [stdout] test generate::tests::display ... ok
Nov 17 06:12:08.911 INFO [stdout] test crossword::tests::is_valid ... ok
Nov 17 06:12:08.940 INFO [stdout] test grid_cell::tests::letter_block_collision ... ok
Nov 17 06:12:08.940 INFO [stdout] test generate::tests::letter_block_collision ... ok
Nov 17 06:12:08.940 INFO [stdout] test crossword::tests::letters ... ok
Nov 17 06:12:08.940 INFO [stdout] test crossword::tests::num_overlaps ... ok
Nov 17 06:12:08.940 INFO [stdout] test rand::tests::rand_range ... ok
Nov 17 06:12:08.940 INFO [stdout] test word_placements::tests::hash ... ok
Nov 17 06:12:08.940 INFO [stdout] test word_placements::tests::new ... ok
Nov 17 06:12:08.940 INFO [stdout] test word_placements::tests::set ... ok
Nov 17 06:12:08.947 INFO [stdout] test generate::tests::test_gen_iter ... ok
Nov 17 06:12:08.955 INFO [stdout] test bench::generate_2 ... ok
Nov 17 06:12:09.527 INFO [stdout] test bench::generate_3 ... ok
Nov 17 06:12:11.606 INFO [stdout] test bench::generate_4 ... ok
Nov 17 06:12:11.606 INFO [stdout] 
Nov 17 06:12:11.606 INFO [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 06:12:11.606 INFO [stdout] 
Nov 17 06:12:11.609 INFO [stderr] su: No module specific data is present
Nov 17 06:12:12.495 INFO running `"docker" "inspect" "c1b0517baf2f455b2d3e22be2fc29428a507100b0d3eeb024d03010fda133bf3"`
Nov 17 06:12:12.693 INFO running `"docker" "rm" "-f" "c1b0517baf2f455b2d3e22be2fc29428a507100b0d3eeb024d03010fda133bf3"`
Nov 17 06:12:12.935 INFO [stdout] c1b0517baf2f455b2d3e22be2fc29428a507100b0d3eeb024d03010fda133bf3