Dec 13 01:21:05.301 INFO testing swizzard/boggler against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 01:21:05.301 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 01:21:05.778 INFO [stdout] 82ce709f1806125f436c2d27b5dff49f8229e53e09026fe04d98b3525a3c241d
Dec 13 01:21:05.781 INFO running `"docker" "start" "-a" "82ce709f1806125f436c2d27b5dff49f8229e53e09026fe04d98b3525a3c241d"`
Dec 13 01:21:07.711 INFO [stderr] usermod: no changes
Dec 13 01:21:07.811 INFO [stderr]    Compiling ascii v0.8.7
Dec 13 01:21:07.819 INFO [stderr]    Compiling textwrap v0.9.0
Dec 13 01:21:09.603 INFO [stderr]    Compiling clap v2.31.2
Dec 13 01:21:20.774 INFO [stderr]    Compiling boggler v0.1.0 (/source)
Dec 13 01:21:21.197 INFO [stderr] warning: unused variable: `seen`
Dec 13 01:21:21.197 INFO [stderr]    --> src/solver.rs:156:17
Dec 13 01:21:21.197 INFO [stderr]     |
Dec 13 01:21:21.197 INFO [stderr] 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Dec 13 01:21:21.197 INFO [stderr]     |                 ^^^^ help: consider using `_seen` instead
Dec 13 01:21:21.197 INFO [stderr]     |
Dec 13 01:21:21.197 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 01:21:21.197 INFO [stderr] 
Dec 13 01:21:21.197 INFO [stderr] warning: unused variable: `adjcts`
Dec 13 01:21:21.197 INFO [stderr]    --> src/solver.rs:158:17
Dec 13 01:21:21.197 INFO [stderr]     |
Dec 13 01:21:21.197 INFO [stderr] 158 |             let adjcts = board.adjacents(x, y);
Dec 13 01:21:21.197 INFO [stderr]     |                 ^^^^^^ help: consider using `_adjcts` instead
Dec 13 01:21:21.197 INFO [stderr] 
Dec 13 01:21:21.237 INFO [stderr] warning: variable does not need to be mutable
Dec 13 01:21:21.237 INFO [stderr]    --> src/solver.rs:154:13
Dec 13 01:21:21.238 INFO [stderr]     |
Dec 13 01:21:21.238 INFO [stderr] 154 |         let mut x = 0;
Dec 13 01:21:21.238 INFO [stderr]     |             ----^
Dec 13 01:21:21.238 INFO [stderr]     |             |
Dec 13 01:21:21.238 INFO [stderr]     |             help: remove this `mut`
Dec 13 01:21:21.238 INFO [stderr]     |
Dec 13 01:21:21.238 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 13 01:21:21.238 INFO [stderr] 
Dec 13 01:21:21.238 INFO [stderr] warning: variable does not need to be mutable
Dec 13 01:21:21.238 INFO [stderr]    --> src/solver.rs:155:13
Dec 13 01:21:21.238 INFO [stderr]     |
Dec 13 01:21:21.238 INFO [stderr] 155 |         let mut y = 0;
Dec 13 01:21:21.238 INFO [stderr]     |             ----^
Dec 13 01:21:21.238 INFO [stderr]     |             |
Dec 13 01:21:21.238 INFO [stderr]     |             help: remove this `mut`
Dec 13 01:21:21.238 INFO [stderr] 
Dec 13 01:21:21.238 INFO [stderr] warning: variable does not need to be mutable
Dec 13 01:21:21.238 INFO [stderr]    --> src/solver.rs:156:13
Dec 13 01:21:21.238 INFO [stderr]     |
Dec 13 01:21:21.238 INFO [stderr] 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Dec 13 01:21:21.238 INFO [stderr]     |             ----^^^^
Dec 13 01:21:21.238 INFO [stderr]     |             |
Dec 13 01:21:21.238 INFO [stderr]     |             help: remove this `mut`
Dec 13 01:21:21.238 INFO [stderr] 
Dec 13 01:21:21.238 INFO [stderr] warning: method is never used: `find_letter`
Dec 13 01:21:21.238 INFO [stderr]    --> src/solver.rs:149:5
Dec 13 01:21:21.238 INFO [stderr]     |
Dec 13 01:21:21.238 INFO [stderr] 149 |     fn find_letter(&self, chr: &AsciiChar) -> Option<&BTNode> {
Dec 13 01:21:21.238 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 01:21:21.238 INFO [stderr]     |
Dec 13 01:21:21.238 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 13 01:21:21.238 INFO [stderr] 
Dec 13 01:21:23.643 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.92s
Dec 13 01:21:23.648 INFO [stderr] su: No module specific data is present
Dec 13 01:21:24.226 INFO running `"docker" "inspect" "82ce709f1806125f436c2d27b5dff49f8229e53e09026fe04d98b3525a3c241d"`
Dec 13 01:21:24.491 INFO running `"docker" "rm" "-f" "82ce709f1806125f436c2d27b5dff49f8229e53e09026fe04d98b3525a3c241d"`
Dec 13 01:21:24.691 INFO [stdout] 82ce709f1806125f436c2d27b5dff49f8229e53e09026fe04d98b3525a3c241d
Dec 13 01:21:24.695 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 01:21:25.048 INFO [stdout] 74544d3b83ab973e0ea1872f07719f3b0f7d054f9bb40cf9591530434b356dda
Dec 13 01:21:25.050 INFO running `"docker" "start" "-a" "74544d3b83ab973e0ea1872f07719f3b0f7d054f9bb40cf9591530434b356dda"`
Dec 13 01:21:25.499 INFO [stderr] usermod: no changes
Dec 13 01:21:25.560 INFO [stderr]    Compiling boggler v0.1.0 (/source)
Dec 13 01:21:25.895 INFO [stderr] warning: unused variable: `seen`
Dec 13 01:21:25.895 INFO [stderr]    --> src/solver.rs:156:17
Dec 13 01:21:25.895 INFO [stderr]     |
Dec 13 01:21:25.895 INFO [stderr] 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Dec 13 01:21:25.895 INFO [stderr]     |                 ^^^^ help: consider using `_seen` instead
Dec 13 01:21:25.895 INFO [stderr]     |
Dec 13 01:21:25.895 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 01:21:25.895 INFO [stderr] 
Dec 13 01:21:25.895 INFO [stderr] warning: unused variable: `adjcts`
Dec 13 01:21:25.895 INFO [stderr]    --> src/solver.rs:158:17
Dec 13 01:21:25.895 INFO [stderr]     |
Dec 13 01:21:25.895 INFO [stderr] 158 |             let adjcts = board.adjacents(x, y);
Dec 13 01:21:25.895 INFO [stderr]     |                 ^^^^^^ help: consider using `_adjcts` instead
Dec 13 01:21:25.895 INFO [stderr] 
Dec 13 01:21:25.946 INFO [stderr] warning: variable does not need to be mutable
Dec 13 01:21:25.946 INFO [stderr]    --> src/solver.rs:154:13
Dec 13 01:21:25.946 INFO [stderr]     |
Dec 13 01:21:25.946 INFO [stderr] 154 |         let mut x = 0;
Dec 13 01:21:25.946 INFO [stderr]     |             ----^
Dec 13 01:21:25.946 INFO [stderr]     |             |
Dec 13 01:21:25.946 INFO [stderr]     |             help: remove this `mut`
Dec 13 01:21:25.946 INFO [stderr]     |
Dec 13 01:21:25.946 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 13 01:21:25.946 INFO [stderr] 
Dec 13 01:21:25.946 INFO [stderr] warning: variable does not need to be mutable
Dec 13 01:21:25.946 INFO [stderr]    --> src/solver.rs:155:13
Dec 13 01:21:25.946 INFO [stderr]     |
Dec 13 01:21:25.946 INFO [stderr] 155 |         let mut y = 0;
Dec 13 01:21:25.946 INFO [stderr]     |             ----^
Dec 13 01:21:25.946 INFO [stderr]     |             |
Dec 13 01:21:25.946 INFO [stderr]     |             help: remove this `mut`
Dec 13 01:21:25.946 INFO [stderr] 
Dec 13 01:21:25.946 INFO [stderr] warning: variable does not need to be mutable
Dec 13 01:21:25.946 INFO [stderr]    --> src/solver.rs:156:13
Dec 13 01:21:25.946 INFO [stderr]     |
Dec 13 01:21:25.946 INFO [stderr] 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Dec 13 01:21:25.946 INFO [stderr]     |             ----^^^^
Dec 13 01:21:25.946 INFO [stderr]     |             |
Dec 13 01:21:25.946 INFO [stderr]     |             help: remove this `mut`
Dec 13 01:21:25.946 INFO [stderr] 
Dec 13 01:21:26.802 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
Dec 13 01:21:26.821 INFO [stderr] su: No module specific data is present
Dec 13 01:21:27.280 INFO running `"docker" "inspect" "74544d3b83ab973e0ea1872f07719f3b0f7d054f9bb40cf9591530434b356dda"`
Dec 13 01:21:27.410 INFO running `"docker" "rm" "-f" "74544d3b83ab973e0ea1872f07719f3b0f7d054f9bb40cf9591530434b356dda"`
Dec 13 01:21:27.595 INFO [stdout] 74544d3b83ab973e0ea1872f07719f3b0f7d054f9bb40cf9591530434b356dda
Dec 13 01:21:27.669 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 01:21:27.883 INFO [stdout] 3309ff410a508fb250975dfd1f173db1f5a0880ad2cfe204897e62b420e4d5c6
Dec 13 01:21:27.885 INFO running `"docker" "start" "-a" "3309ff410a508fb250975dfd1f173db1f5a0880ad2cfe204897e62b420e4d5c6"`
Dec 13 01:21:28.460 INFO [stderr] usermod: no changes
Dec 13 01:21:28.541 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 13 01:21:28.544 INFO [stderr]      Running /target/debug/deps/boggler-e455c55731e6df54
Dec 13 01:21:28.557 INFO [stdout] 
Dec 13 01:21:28.557 INFO [stdout] running 16 tests
Dec 13 01:21:28.557 INFO [stdout] test board::test::test_adjacents_middle ... ok
Dec 13 01:21:28.558 INFO [stdout] test board::test::test_adjacents_right_side ... ok
Dec 13 01:21:28.558 INFO [stdout] test board::test::test_adjacents_top ... ok
Dec 13 01:21:28.558 INFO [stdout] test board::test::test_adjacents_upper_right_corner ... ok
Dec 13 01:21:28.558 INFO [stdout] test board::test::test_adjacents_bottom ... ok
Dec 13 01:21:28.563 INFO [stdout] test board::test::test_adjacents_left_side ... ok
Dec 13 01:21:28.563 INFO [stdout] test board::test::test_adjacents_upper_left_corner ... ok
Dec 13 01:21:28.563 INFO [stdout] test solver::test::count_word_no_q ... ok
Dec 13 01:21:28.567 INFO [stdout] test solver::test::count_word_q ... ok
Dec 13 01:21:28.567 INFO [stdout] test solver::test::count_word_u_no_q ... ok
Dec 13 01:21:28.567 INFO [stdout] test solver::test::find_letter ... ok
Dec 13 01:21:28.567 INFO [stdout] test solver::test::prepare_word_lowercase ... ok
Dec 13 01:21:28.567 INFO [stdout] test solver::test::new_empty ... ok
Dec 13 01:21:28.567 INFO [stdout] test solver::test::new_one_word ... ok
Dec 13 01:21:28.567 INFO [stdout] test solver::test::find ... ok
Dec 13 01:21:28.579 INFO [stdout] test solver::test::two_new_words ... ok
Dec 13 01:21:28.579 INFO [stderr]      Running /target/debug/deps/boggler-2f28ec8fa5d6846b
Dec 13 01:21:28.579 INFO [stdout] 
Dec 13 01:21:28.579 INFO [stderr]    Doc-tests boggler
Dec 13 01:21:28.579 INFO [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 01:21:28.579 INFO [stdout] 
Dec 13 01:21:28.579 INFO [stdout] 
Dec 13 01:21:28.579 INFO [stdout] running 0 tests
Dec 13 01:21:28.579 INFO [stdout] 
Dec 13 01:21:28.579 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 01:21:28.579 INFO [stdout] 
Dec 13 01:21:28.841 INFO [stdout] 
Dec 13 01:21:28.841 INFO [stdout] running 0 tests
Dec 13 01:21:28.841 INFO [stdout] 
Dec 13 01:21:28.841 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 01:21:28.841 INFO [stdout] 
Dec 13 01:21:28.848 INFO [stderr] su: No module specific data is present
Dec 13 01:21:29.371 INFO running `"docker" "inspect" "3309ff410a508fb250975dfd1f173db1f5a0880ad2cfe204897e62b420e4d5c6"`
Dec 13 01:21:29.659 INFO running `"docker" "rm" "-f" "3309ff410a508fb250975dfd1f173db1f5a0880ad2cfe204897e62b420e4d5c6"`
Dec 13 01:21:29.859 INFO [stdout] 3309ff410a508fb250975dfd1f173db1f5a0880ad2cfe204897e62b420e4d5c6