Oct 27 06:33:45.559 INFO checking conundrumer/crossword against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 06:33:45.560 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-4/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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 27 06:33:46.029 INFO blam! 297b533e98dea599544269e6a5cf23d7484a06972e62d45539c3bf54711ed6db
Oct 27 06:33:46.032 INFO running `"docker" "start" "-a" "297b533e98dea599544269e6a5cf23d7484a06972e62d45539c3bf54711ed6db"`
Oct 27 06:33:47.875 INFO kablam! usermod: no changes
Oct 27 06:33:47.955 INFO kablam!     Checking crossword v0.1.0 (/source)
Oct 27 06:33:48.775 INFO kablam! warning: unnecessary parentheses around function argument
Oct 27 06:33:48.775 INFO kablam!   --> src/grid.rs:25:21
Oct 27 06:33:48.775 INFO kablam!    |
Oct 27 06:33:48.775 INFO kablam! 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Oct 27 06:33:48.775 INFO kablam!    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Oct 27 06:33:48.775 INFO kablam!    |
Oct 27 06:33:48.775 INFO kablam!    = note: #[warn(unused_parens)] on by default
Oct 27 06:33:48.775 INFO kablam! 
Oct 27 06:33:48.979 INFO kablam! warning: unnecessary parentheses around function argument
Oct 27 06:33:48.979 INFO kablam!   --> src/grid.rs:25:21
Oct 27 06:33:48.979 INFO kablam!    |
Oct 27 06:33:48.979 INFO kablam! 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Oct 27 06:33:48.979 INFO kablam!    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Oct 27 06:33:48.979 INFO kablam!    |
Oct 27 06:33:48.979 INFO kablam!    = note: #[warn(unused_parens)] on by default
Oct 27 06:33:48.979 INFO kablam! 
Oct 27 06:33:49.419 INFO kablam! warning: variable does not need to be mutable
Oct 27 06:33:49.419 INFO kablam!    --> src/filter.rs:115:17
Oct 27 06:33:49.419 INFO kablam!     |
Oct 27 06:33:49.419 INFO kablam! 115 |             let mut seen = &mut self.seen.borrow_mut();
Oct 27 06:33:49.419 INFO kablam!     |                 ----^^^^
Oct 27 06:33:49.419 INFO kablam!     |                 |
Oct 27 06:33:49.419 INFO kablam!     |                 help: remove this `mut`
Oct 27 06:33:49.419 INFO kablam!     |
Oct 27 06:33:49.419 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 27 06:33:49.419 INFO kablam! 
Oct 27 06:33:49.497 INFO kablam! warning: type alias is never used: `GridCellPos`
Oct 27 06:33:49.497 INFO kablam!  --> src/grid_cell.rs:4:1
Oct 27 06:33:49.497 INFO kablam!   |
Oct 27 06:33:49.497 INFO kablam! 4 | type GridCellPos = (GridCell, (i8, i8));
Oct 27 06:33:49.497 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:49.497 INFO kablam!   |
Oct 27 06:33:49.497 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 27 06:33:49.499 INFO kablam! 
Oct 27 06:33:49.499 INFO kablam! warning: method is never used: `is_valid`
Oct 27 06:33:49.499 INFO kablam!   --> src/crossword.rs:38:5
Oct 27 06:33:49.499 INFO kablam!    |
Oct 27 06:33:49.499 INFO kablam! 38 |     pub fn is_valid(&self) -> bool {
Oct 27 06:33:49.499 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:49.499 INFO kablam! 
Oct 27 06:33:49.499 INFO kablam! warning: method is never used: `iter`
Oct 27 06:33:49.499 INFO kablam!   --> src/generate.rs:41:5
Oct 27 06:33:49.499 INFO kablam!    |
Oct 27 06:33:49.499 INFO kablam! 41 |     pub fn iter<'b>(&'b self) -> Box<Iterator<Item=Crossword> + 'b> {
Oct 27 06:33:49.499 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:49.499 INFO kablam! 
Oct 27 06:33:49.499 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Oct 27 06:33:49.499 INFO kablam!  --> src/main.rs:1:12
Oct 27 06:33:49.499 INFO kablam!   |
Oct 27 06:33:49.499 INFO kablam! 1 | #![feature(conservative_impl_trait)]
Oct 27 06:33:49.499 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:49.499 INFO kablam!   |
Oct 27 06:33:49.499 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 27 06:33:49.499 INFO kablam! 
Oct 27 06:33:49.797 INFO kablam! warning: variable does not need to be mutable
Oct 27 06:33:49.798 INFO kablam!    --> src/filter.rs:115:17
Oct 27 06:33:49.799 INFO kablam!     |
Oct 27 06:33:49.799 INFO kablam! 115 |             let mut seen = &mut self.seen.borrow_mut();
Oct 27 06:33:49.800 INFO kablam!     |                 ----^^^^
Oct 27 06:33:49.800 INFO kablam!     |                 |
Oct 27 06:33:49.801 INFO kablam!     |                 help: remove this `mut`
Oct 27 06:33:49.802 INFO kablam!     |
Oct 27 06:33:49.802 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 27 06:33:49.803 INFO kablam! 
Oct 27 06:33:49.848 INFO kablam! warning: type alias is never used: `GridCellPos`
Oct 27 06:33:49.849 INFO kablam!  --> src/grid_cell.rs:4:1
Oct 27 06:33:49.850 INFO kablam!   |
Oct 27 06:33:49.851 INFO kablam! 4 | type GridCellPos = (GridCell, (i8, i8));
Oct 27 06:33:49.851 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:49.852 INFO kablam!   |
Oct 27 06:33:49.852 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 27 06:33:49.853 INFO kablam! 
Oct 27 06:33:49.854 INFO kablam! warning: type alias is never used: `WordPosition`
Oct 27 06:33:49.854 INFO kablam!    --> src/generate.rs:185:5
Oct 27 06:33:49.855 INFO kablam!     |
Oct 27 06:33:49.855 INFO kablam! 185 |     type WordPosition = (&'static str, Position);
Oct 27 06:33:49.856 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:49.857 INFO kablam! 
Oct 27 06:33:49.857 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Oct 27 06:33:49.858 INFO kablam!  --> src/main.rs:1:12
Oct 27 06:33:49.862 INFO kablam!   |
Oct 27 06:33:49.862 INFO kablam! 1 | #![feature(conservative_impl_trait)]
Oct 27 06:33:49.862 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:49.862 INFO kablam!   |
Oct 27 06:33:49.862 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 27 06:33:49.862 INFO kablam! 
Oct 27 06:33:49.899 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
Oct 27 06:33:49.902 INFO kablam! su: No module specific data is present
Oct 27 06:33:51.256 INFO running `"docker" "rm" "-f" "297b533e98dea599544269e6a5cf23d7484a06972e62d45539c3bf54711ed6db"`
Oct 27 06:33:51.572 INFO blam! 297b533e98dea599544269e6a5cf23d7484a06972e62d45539c3bf54711ed6db