Dec 04 09:09:20.660 INFO checking swizzard/boggler against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 09:09:20.660 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-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 04 09:09:21.215 INFO [stdout] 33dc779aae7e1aaf0e30f67c4143668743eba9f074984fd2e2b8b919b2c1c55e
Dec 04 09:09:21.217 INFO running `"docker" "start" "-a" "33dc779aae7e1aaf0e30f67c4143668743eba9f074984fd2e2b8b919b2c1c55e"`
Dec 04 09:09:23.139 INFO [stderr] usermod: no changes
Dec 04 09:09:23.239 INFO [stderr]     Checking ascii v0.8.7
Dec 04 09:09:23.251 INFO [stderr]     Checking rand v0.5.1
Dec 04 09:09:26.375 INFO [stderr]     Checking boggler v0.1.0 (/source)
Dec 04 09:09:27.111 INFO [stderr] warning: unused variable: `seen`
Dec 04 09:09:27.111 INFO [stderr]    --> src/solver.rs:156:17
Dec 04 09:09:27.111 INFO [stderr]     |
Dec 04 09:09:27.111 INFO [stderr] 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Dec 04 09:09:27.111 INFO [stderr]     |                 ^^^^ help: consider using `_seen` instead
Dec 04 09:09:27.111 INFO [stderr]     |
Dec 04 09:09:27.111 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 09:09:27.111 INFO [stderr] 
Dec 04 09:09:27.111 INFO [stderr] warning: unused variable: `adjcts`
Dec 04 09:09:27.111 INFO [stderr]    --> src/solver.rs:158:17
Dec 04 09:09:27.111 INFO [stderr]     |
Dec 04 09:09:27.111 INFO [stderr] 158 |             let adjcts = board.adjacents(x, y);
Dec 04 09:09:27.111 INFO [stderr]     |                 ^^^^^^ help: consider using `_adjcts` instead
Dec 04 09:09:27.111 INFO [stderr] 
Dec 04 09:09:27.163 INFO [stderr] warning: variable does not need to be mutable
Dec 04 09:09:27.163 INFO [stderr]    --> src/solver.rs:154:13
Dec 04 09:09:27.163 INFO [stderr]     |
Dec 04 09:09:27.163 INFO [stderr] 154 |         let mut x = 0;
Dec 04 09:09:27.163 INFO [stderr]     |             ----^
Dec 04 09:09:27.163 INFO [stderr]     |             |
Dec 04 09:09:27.163 INFO [stderr]     |             help: remove this `mut`
Dec 04 09:09:27.163 INFO [stderr]     |
Dec 04 09:09:27.163 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 09:09:27.163 INFO [stderr] 
Dec 04 09:09:27.163 INFO [stderr] warning: variable does not need to be mutable
Dec 04 09:09:27.163 INFO [stderr]    --> src/solver.rs:155:13
Dec 04 09:09:27.163 INFO [stderr]     |
Dec 04 09:09:27.163 INFO [stderr] 155 |         let mut y = 0;
Dec 04 09:09:27.163 INFO [stderr]     |             ----^
Dec 04 09:09:27.163 INFO [stderr]     |             |
Dec 04 09:09:27.163 INFO [stderr]     |             help: remove this `mut`
Dec 04 09:09:27.163 INFO [stderr] 
Dec 04 09:09:27.163 INFO [stderr] warning: variable does not need to be mutable
Dec 04 09:09:27.163 INFO [stderr]    --> src/solver.rs:156:13
Dec 04 09:09:27.163 INFO [stderr]     |
Dec 04 09:09:27.163 INFO [stderr] 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Dec 04 09:09:27.163 INFO [stderr]     |             ----^^^^
Dec 04 09:09:27.163 INFO [stderr]     |             |
Dec 04 09:09:27.163 INFO [stderr]     |             help: remove this `mut`
Dec 04 09:09:27.163 INFO [stderr] 
Dec 04 09:09:27.167 INFO [stderr] warning: method is never used: `find_letter`
Dec 04 09:09:27.167 INFO [stderr]    --> src/solver.rs:149:5
Dec 04 09:09:27.167 INFO [stderr]     |
Dec 04 09:09:27.167 INFO [stderr] 149 |     fn find_letter(&self, chr: &AsciiChar) -> Option<&BTNode> {
Dec 04 09:09:27.167 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:09:27.167 INFO [stderr]     |
Dec 04 09:09:27.167 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 09:09:27.167 INFO [stderr] 
Dec 04 09:09:27.658 INFO [stderr] warning: unused variable: `seen`
Dec 04 09:09:27.659 INFO [stderr]    --> src/solver.rs:156:17
Dec 04 09:09:27.659 INFO [stderr]     |
Dec 04 09:09:27.659 INFO [stderr] 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Dec 04 09:09:27.660 INFO [stderr]     |                 ^^^^ help: consider using `_seen` instead
Dec 04 09:09:27.663 INFO [stderr]     |
Dec 04 09:09:27.663 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 09:09:27.663 INFO [stderr] 
Dec 04 09:09:27.663 INFO [stderr] warning: unused variable: `adjcts`
Dec 04 09:09:27.663 INFO [stderr]    --> src/solver.rs:158:17
Dec 04 09:09:27.663 INFO [stderr]     |
Dec 04 09:09:27.663 INFO [stderr] 158 |             let adjcts = board.adjacents(x, y);
Dec 04 09:09:27.663 INFO [stderr]     |                 ^^^^^^ help: consider using `_adjcts` instead
Dec 04 09:09:27.663 INFO [stderr] 
Dec 04 09:09:27.823 INFO [stderr] warning: variable does not need to be mutable
Dec 04 09:09:27.823 INFO [stderr]    --> src/solver.rs:154:13
Dec 04 09:09:27.823 INFO [stderr]     |
Dec 04 09:09:27.823 INFO [stderr] 154 |         let mut x = 0;
Dec 04 09:09:27.823 INFO [stderr]     |             ----^
Dec 04 09:09:27.823 INFO [stderr]     |             |
Dec 04 09:09:27.823 INFO [stderr]     |             help: remove this `mut`
Dec 04 09:09:27.823 INFO [stderr]     |
Dec 04 09:09:27.823 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 09:09:27.823 INFO [stderr] 
Dec 04 09:09:27.823 INFO [stderr] warning: variable does not need to be mutable
Dec 04 09:09:27.823 INFO [stderr]    --> src/solver.rs:155:13
Dec 04 09:09:27.823 INFO [stderr]     |
Dec 04 09:09:27.823 INFO [stderr] 155 |         let mut y = 0;
Dec 04 09:09:27.823 INFO [stderr]     |             ----^
Dec 04 09:09:27.823 INFO [stderr]     |             |
Dec 04 09:09:27.823 INFO [stderr]     |             help: remove this `mut`
Dec 04 09:09:27.823 INFO [stderr] 
Dec 04 09:09:27.823 INFO [stderr] warning: variable does not need to be mutable
Dec 04 09:09:27.823 INFO [stderr]    --> src/solver.rs:156:13
Dec 04 09:09:27.823 INFO [stderr]     |
Dec 04 09:09:27.823 INFO [stderr] 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Dec 04 09:09:27.823 INFO [stderr]     |             ----^^^^
Dec 04 09:09:27.823 INFO [stderr]     |             |
Dec 04 09:09:27.823 INFO [stderr]     |             help: remove this `mut`
Dec 04 09:09:27.823 INFO [stderr] 
Dec 04 09:09:28.171 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.01s
Dec 04 09:09:28.175 INFO [stderr] su: No module specific data is present
Dec 04 09:09:29.654 INFO running `"docker" "inspect" "33dc779aae7e1aaf0e30f67c4143668743eba9f074984fd2e2b8b919b2c1c55e"`
Dec 04 09:09:30.033 INFO running `"docker" "rm" "-f" "33dc779aae7e1aaf0e30f67c4143668743eba9f074984fd2e2b8b919b2c1c55e"`
Dec 04 09:09:30.459 INFO [stdout] 33dc779aae7e1aaf0e30f67c4143668743eba9f074984fd2e2b8b919b2c1c55e