Oct 12 12:43:31.657 INFO checking swizzard/boggler against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 12:43:31.658 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 12:43:32.059 INFO blam! df0f0a3f0080cecf592f7984f8a261dbd050b13b9fa76b5a67739e111d14388c
Oct 12 12:43:32.064 INFO running `"docker" "start" "-a" "df0f0a3f0080cecf592f7984f8a261dbd050b13b9fa76b5a67739e111d14388c"`
Oct 12 12:43:33.427 INFO kablam! usermod: no changes
Oct 12 12:43:33.524 INFO kablam!     Checking rand v0.5.1
Oct 12 12:43:36.382 INFO kablam!     Checking boggler v0.1.0 (/source)
Oct 12 12:43:36.766 INFO kablam! warning: unused variable: `seen`
Oct 12 12:43:36.768 INFO kablam!    --> src/solver.rs:156:17
Oct 12 12:43:36.768 INFO kablam!     |
Oct 12 12:43:36.768 INFO kablam! 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Oct 12 12:43:36.768 INFO kablam!     |                 ^^^^ help: consider using `_seen` instead
Oct 12 12:43:36.768 INFO kablam!     |
Oct 12 12:43:36.768 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 12 12:43:36.769 INFO kablam! 
Oct 12 12:43:36.769 INFO kablam! warning: unused variable: `adjcts`
Oct 12 12:43:36.769 INFO kablam!    --> src/solver.rs:158:17
Oct 12 12:43:36.769 INFO kablam!     |
Oct 12 12:43:36.769 INFO kablam! 158 |             let adjcts = board.adjacents(x, y);
Oct 12 12:43:36.769 INFO kablam!     |                 ^^^^^^ help: consider using `_adjcts` instead
Oct 12 12:43:36.770 INFO kablam! 
Oct 12 12:43:36.808 INFO kablam! warning: variable does not need to be mutable
Oct 12 12:43:36.808 INFO kablam!    --> src/solver.rs:154:13
Oct 12 12:43:36.808 INFO kablam!     |
Oct 12 12:43:36.808 INFO kablam! 154 |         let mut x = 0;
Oct 12 12:43:36.808 INFO kablam!     |             ----^
Oct 12 12:43:36.808 INFO kablam!     |             |
Oct 12 12:43:36.808 INFO kablam!     |             help: remove this `mut`
Oct 12 12:43:36.808 INFO kablam!     |
Oct 12 12:43:36.808 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 12 12:43:36.808 INFO kablam! 
Oct 12 12:43:36.808 INFO kablam! warning: variable does not need to be mutable
Oct 12 12:43:36.808 INFO kablam!    --> src/solver.rs:155:13
Oct 12 12:43:36.808 INFO kablam!     |
Oct 12 12:43:36.808 INFO kablam! 155 |         let mut y = 0;
Oct 12 12:43:36.808 INFO kablam!     |             ----^
Oct 12 12:43:36.808 INFO kablam!     |             |
Oct 12 12:43:36.808 INFO kablam!     |             help: remove this `mut`
Oct 12 12:43:36.808 INFO kablam! 
Oct 12 12:43:36.808 INFO kablam! warning: variable does not need to be mutable
Oct 12 12:43:36.808 INFO kablam!    --> src/solver.rs:156:13
Oct 12 12:43:36.808 INFO kablam!     |
Oct 12 12:43:36.808 INFO kablam! 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Oct 12 12:43:36.808 INFO kablam!     |             ----^^^^
Oct 12 12:43:36.808 INFO kablam!     |             |
Oct 12 12:43:36.808 INFO kablam!     |             help: remove this `mut`
Oct 12 12:43:36.808 INFO kablam! 
Oct 12 12:43:36.812 INFO kablam! warning: method is never used: `find_letter`
Oct 12 12:43:36.812 INFO kablam!    --> src/solver.rs:149:5
Oct 12 12:43:36.812 INFO kablam!     |
Oct 12 12:43:36.812 INFO kablam! 149 |     fn find_letter(&self, chr: &AsciiChar) -> Option<&BTNode> {
Oct 12 12:43:36.812 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:43:36.828 INFO kablam!     |
Oct 12 12:43:36.828 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 12:43:36.828 INFO kablam! 
Oct 12 12:43:37.128 INFO kablam! warning: unused variable: `seen`
Oct 12 12:43:37.128 INFO kablam!    --> src/solver.rs:156:17
Oct 12 12:43:37.128 INFO kablam!     |
Oct 12 12:43:37.128 INFO kablam! 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Oct 12 12:43:37.128 INFO kablam!     |                 ^^^^ help: consider using `_seen` instead
Oct 12 12:43:37.128 INFO kablam!     |
Oct 12 12:43:37.128 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 12 12:43:37.128 INFO kablam! 
Oct 12 12:43:37.128 INFO kablam! warning: unused variable: `adjcts`
Oct 12 12:43:37.128 INFO kablam!    --> src/solver.rs:158:17
Oct 12 12:43:37.128 INFO kablam!     |
Oct 12 12:43:37.128 INFO kablam! 158 |             let adjcts = board.adjacents(x, y);
Oct 12 12:43:37.128 INFO kablam!     |                 ^^^^^^ help: consider using `_adjcts` instead
Oct 12 12:43:37.128 INFO kablam! 
Oct 12 12:43:37.176 INFO kablam! warning: variable does not need to be mutable
Oct 12 12:43:37.176 INFO kablam!    --> src/solver.rs:154:13
Oct 12 12:43:37.176 INFO kablam!     |
Oct 12 12:43:37.176 INFO kablam! 154 |         let mut x = 0;
Oct 12 12:43:37.176 INFO kablam!     |             ----^
Oct 12 12:43:37.176 INFO kablam!     |             |
Oct 12 12:43:37.176 INFO kablam!     |             help: remove this `mut`
Oct 12 12:43:37.176 INFO kablam!     |
Oct 12 12:43:37.176 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 12 12:43:37.176 INFO kablam! 
Oct 12 12:43:37.176 INFO kablam! warning: variable does not need to be mutable
Oct 12 12:43:37.176 INFO kablam!    --> src/solver.rs:155:13
Oct 12 12:43:37.176 INFO kablam!     |
Oct 12 12:43:37.176 INFO kablam! 155 |         let mut y = 0;
Oct 12 12:43:37.176 INFO kablam!     |             ----^
Oct 12 12:43:37.176 INFO kablam!     |             |
Oct 12 12:43:37.176 INFO kablam!     |             help: remove this `mut`
Oct 12 12:43:37.176 INFO kablam! 
Oct 12 12:43:37.176 INFO kablam! warning: variable does not need to be mutable
Oct 12 12:43:37.176 INFO kablam!    --> src/solver.rs:156:13
Oct 12 12:43:37.176 INFO kablam!     |
Oct 12 12:43:37.176 INFO kablam! 156 |         let mut seen: HashSet<BoardPosition> = HashSet::with_capacity(16);
Oct 12 12:43:37.176 INFO kablam!     |             ----^^^^
Oct 12 12:43:37.176 INFO kablam!     |             |
Oct 12 12:43:37.176 INFO kablam!     |             help: remove this `mut`
Oct 12 12:43:37.176 INFO kablam! 
Oct 12 12:43:37.729 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.27s
Oct 12 12:43:37.736 INFO kablam! su: No module specific data is present
Oct 12 12:43:38.550 INFO running `"docker" "rm" "-f" "df0f0a3f0080cecf592f7984f8a261dbd050b13b9fa76b5a67739e111d14388c"`
Oct 12 12:43:38.952 INFO blam! df0f0a3f0080cecf592f7984f8a261dbd050b13b9fa76b5a67739e111d14388c