Oct 27 06:33:51.654 INFO checking conundrumer/crossword against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192-2
Oct 27 06:33:51.656 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-4/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 06:33:52.080 INFO blam! 2da2160673b374f12ac3ca867da91594997010a9a4cc5fe9c7309a68dc6d368c
Oct 27 06:33:52.083 INFO running `"docker" "start" "-a" "2da2160673b374f12ac3ca867da91594997010a9a4cc5fe9c7309a68dc6d368c"`
Oct 27 06:33:54.227 INFO kablam! usermod: no changes
Oct 27 06:33:54.331 INFO kablam!     Checking crossword v0.1.0 (/source)
Oct 27 06:33:54.909 INFO kablam! warning: unnecessary parentheses around function argument
Oct 27 06:33:54.910 INFO kablam!   --> src/grid.rs:25:21
Oct 27 06:33:54.910 INFO kablam!    |
Oct 27 06:33:54.911 INFO kablam! 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Oct 27 06:33:54.912 INFO kablam!    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Oct 27 06:33:54.912 INFO kablam!    |
Oct 27 06:33:54.913 INFO kablam!    = note: #[warn(unused_parens)] on by default
Oct 27 06:33:54.914 INFO kablam! 
Oct 27 06:33:55.059 INFO kablam! warning: unnecessary parentheses around function argument
Oct 27 06:33:55.060 INFO kablam!   --> src/grid.rs:25:21
Oct 27 06:33:55.060 INFO kablam!    |
Oct 27 06:33:55.061 INFO kablam! 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Oct 27 06:33:55.061 INFO kablam!    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Oct 27 06:33:55.062 INFO kablam!    |
Oct 27 06:33:55.063 INFO kablam!    = note: #[warn(unused_parens)] on by default
Oct 27 06:33:55.063 INFO kablam! 
Oct 27 06:33:55.755 INFO kablam! warning: variable does not need to be mutable
Oct 27 06:33:55.756 INFO kablam!    --> src/filter.rs:115:17
Oct 27 06:33:55.756 INFO kablam!     |
Oct 27 06:33:55.757 INFO kablam! 115 |             let mut seen = &mut self.seen.borrow_mut();
Oct 27 06:33:55.758 INFO kablam!     |                 ----^^^^
Oct 27 06:33:55.758 INFO kablam!     |                 |
Oct 27 06:33:55.759 INFO kablam!     |                 help: remove this `mut`
Oct 27 06:33:55.760 INFO kablam!     |
Oct 27 06:33:55.760 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 27 06:33:55.761 INFO kablam! 
Oct 27 06:33:55.795 INFO kablam! warning: variable does not need to be mutable
Oct 27 06:33:55.796 INFO kablam!    --> src/filter.rs:115:17
Oct 27 06:33:55.797 INFO kablam!     |
Oct 27 06:33:55.797 INFO kablam! 115 |             let mut seen = &mut self.seen.borrow_mut();
Oct 27 06:33:55.798 INFO kablam!     |                 ----^^^^
Oct 27 06:33:55.798 INFO kablam!     |                 |
Oct 27 06:33:55.799 INFO kablam!     |                 help: remove this `mut`
Oct 27 06:33:55.800 INFO kablam!     |
Oct 27 06:33:55.800 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 27 06:33:55.801 INFO kablam! 
Oct 27 06:33:55.859 INFO kablam! warning: type alias is never used: `GridCellPos`
Oct 27 06:33:55.860 INFO kablam!  --> src/grid_cell.rs:4:1
Oct 27 06:33:55.860 INFO kablam!   |
Oct 27 06:33:55.861 INFO kablam! 4 | type GridCellPos = (GridCell, (i8, i8));
Oct 27 06:33:55.861 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:55.862 INFO kablam! warning: type alias is never used: `GridCellPos`
Oct 27 06:33:55.863 INFO kablam!  --> src/grid_cell.rs:4:1
Oct 27 06:33:55.863 INFO kablam!   |
Oct 27 06:33:55.864 INFO kablam! 4 | type GridCellPos = (GridCell, (i8, i8));
Oct 27 06:33:55.864 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:55.865 INFO kablam!   |
Oct 27 06:33:55.866 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 27 06:33:55.866 INFO kablam! 
Oct 27 06:33:55.867 INFO kablam! warning: method is never used: `is_valid`
Oct 27 06:33:55.868 INFO kablam!   --> src/crossword.rs:38:5
Oct 27 06:33:55.868 INFO kablam!    |
Oct 27 06:33:55.868 INFO kablam! 38 |     pub fn is_valid(&self) -> bool {
Oct 27 06:33:55.868 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:55.868 INFO kablam! 
Oct 27 06:33:55.868 INFO kablam! warning: method is never used: `iter`
Oct 27 06:33:55.868 INFO kablam!   --> src/generate.rs:41:5
Oct 27 06:33:55.868 INFO kablam!    |
Oct 27 06:33:55.868 INFO kablam! 41 |     pub fn iter<'b>(&'b self) -> Box<Iterator<Item=Crossword> + 'b> {
Oct 27 06:33:55.868 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:55.868 INFO kablam! 
Oct 27 06:33:55.868 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 06:33:55.868 INFO kablam!  --> src/main.rs:1:12
Oct 27 06:33:55.868 INFO kablam!   |
Oct 27 06:33:55.871 INFO kablam! 1 | #![feature(conservative_impl_trait)]
Oct 27 06:33:55.871 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:55.871 INFO kablam!   |
Oct 27 06:33:55.871 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 27 06:33:55.871 INFO kablam! 
Oct 27 06:33:55.871 INFO kablam!   |
Oct 27 06:33:55.871 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 27 06:33:55.871 INFO kablam! 
Oct 27 06:33:55.873 INFO kablam! warning: type alias is never used: `WordPosition`
Oct 27 06:33:55.874 INFO kablam!    --> src/generate.rs:185:5
Oct 27 06:33:55.874 INFO kablam!     |
Oct 27 06:33:55.874 INFO kablam! 185 |     type WordPosition = (&'static str, Position);
Oct 27 06:33:55.874 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:55.875 INFO kablam! 
Oct 27 06:33:55.875 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 06:33:55.875 INFO kablam!  --> src/main.rs:1:12
Oct 27 06:33:55.875 INFO kablam!   |
Oct 27 06:33:55.875 INFO kablam! 1 | #![feature(conservative_impl_trait)]
Oct 27 06:33:55.875 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 06:33:55.878 INFO kablam!   |
Oct 27 06:33:55.879 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 27 06:33:55.879 INFO kablam! 
Oct 27 06:33:55.964 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
Oct 27 06:33:55.973 INFO kablam! su: No module specific data is present
Oct 27 06:33:57.430 INFO running `"docker" "rm" "-f" "2da2160673b374f12ac3ca867da91594997010a9a4cc5fe9c7309a68dc6d368c"`
Oct 27 06:33:57.699 INFO blam! 2da2160673b374f12ac3ca867da91594997010a9a4cc5fe9c7309a68dc6d368c