Nov 04 08:38:50.061 INFO checking conundrumer/crossword against master#2ad8c7b3502616aff142a4640cce911c6c2c5463 for pr-55655
Nov 04 08:38:50.061 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-6/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55655/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/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 +2ad8c7b3502616aff142a4640cce911c6c2c5463-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"`
Nov 04 08:38:50.479 INFO blam! ab35692f64908f86f33c7ffd65ba08d063fedc1befbf5a4ea7c02bc3abb9cfe9
Nov 04 08:38:50.480 INFO running `"docker" "start" "-a" "ab35692f64908f86f33c7ffd65ba08d063fedc1befbf5a4ea7c02bc3abb9cfe9"`
Nov 04 08:38:51.595 INFO kablam! usermod: no changes
Nov 04 08:38:51.668 INFO kablam!     Checking crossword v0.1.0 (/source)
Nov 04 08:38:52.175 INFO kablam! warning: unnecessary parentheses around function argument
Nov 04 08:38:52.175 INFO kablam!   --> src/grid.rs:25:21
Nov 04 08:38:52.176 INFO kablam!    |
Nov 04 08:38:52.176 INFO kablam! 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Nov 04 08:38:52.176 INFO kablam!    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 04 08:38:52.176 INFO kablam!    |
Nov 04 08:38:52.177 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 04 08:38:52.177 INFO kablam! 
Nov 04 08:38:52.279 INFO kablam! warning: unnecessary parentheses around function argument
Nov 04 08:38:52.280 INFO kablam!   --> src/grid.rs:25:21
Nov 04 08:38:52.280 INFO kablam!    |
Nov 04 08:38:52.280 INFO kablam! 25 |         vec![Empty; ((bb.width() as usize) * (bb.height() as usize))]
Nov 04 08:38:52.280 INFO kablam!    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 04 08:38:52.281 INFO kablam!    |
Nov 04 08:38:52.281 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 04 08:38:52.281 INFO kablam! 
Nov 04 08:38:52.483 INFO kablam! warning: variable does not need to be mutable
Nov 04 08:38:52.483 INFO kablam!    --> src/filter.rs:115:17
Nov 04 08:38:52.483 INFO kablam!     |
Nov 04 08:38:52.483 INFO kablam! 115 |             let mut seen = &mut self.seen.borrow_mut();
Nov 04 08:38:52.483 INFO kablam!     |                 ----^^^^
Nov 04 08:38:52.483 INFO kablam!     |                 |
Nov 04 08:38:52.483 INFO kablam!     |                 help: remove this `mut`
Nov 04 08:38:52.483 INFO kablam!     |
Nov 04 08:38:52.483 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 04 08:38:52.483 INFO kablam! 
Nov 04 08:38:52.550 INFO kablam! warning: type alias is never used: `GridCellPos`
Nov 04 08:38:52.550 INFO kablam!  --> src/grid_cell.rs:4:1
Nov 04 08:38:52.550 INFO kablam!   |
Nov 04 08:38:52.550 INFO kablam! 4 | type GridCellPos = (GridCell, (i8, i8));
Nov 04 08:38:52.550 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 08:38:52.550 INFO kablam!   |
Nov 04 08:38:52.550 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 04 08:38:52.550 INFO kablam! 
Nov 04 08:38:52.550 INFO kablam! warning: method is never used: `is_valid`
Nov 04 08:38:52.550 INFO kablam!   --> src/crossword.rs:38:5
Nov 04 08:38:52.550 INFO kablam!    |
Nov 04 08:38:52.550 INFO kablam! 38 |     pub fn is_valid(&self) -> bool {
Nov 04 08:38:52.550 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 08:38:52.550 INFO kablam! 
Nov 04 08:38:52.550 INFO kablam! warning: method is never used: `iter`
Nov 04 08:38:52.550 INFO kablam!   --> src/generate.rs:41:5
Nov 04 08:38:52.550 INFO kablam!    |
Nov 04 08:38:52.550 INFO kablam! 41 |     pub fn iter<'b>(&'b self) -> Box<Iterator<Item=Crossword> + 'b> {
Nov 04 08:38:52.550 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 08:38:52.550 INFO kablam! 
Nov 04 08:38:52.551 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 04 08:38:52.551 INFO kablam!  --> src/main.rs:1:12
Nov 04 08:38:52.551 INFO kablam!   |
Nov 04 08:38:52.551 INFO kablam! 1 | #![feature(conservative_impl_trait)]
Nov 04 08:38:52.551 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 08:38:52.551 INFO kablam!   |
Nov 04 08:38:52.551 INFO kablam!   = note: #[warn(stable_features)] on by default
Nov 04 08:38:52.551 INFO kablam! 
Nov 04 08:38:52.801 INFO kablam! warning: variable does not need to be mutable
Nov 04 08:38:52.801 INFO kablam!    --> src/filter.rs:115:17
Nov 04 08:38:52.801 INFO kablam!     |
Nov 04 08:38:52.801 INFO kablam! 115 |             let mut seen = &mut self.seen.borrow_mut();
Nov 04 08:38:52.801 INFO kablam!     |                 ----^^^^
Nov 04 08:38:52.801 INFO kablam!     |                 |
Nov 04 08:38:52.801 INFO kablam!     |                 help: remove this `mut`
Nov 04 08:38:52.801 INFO kablam!     |
Nov 04 08:38:52.801 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 04 08:38:52.801 INFO kablam! 
Nov 04 08:38:52.855 INFO kablam! warning: type alias is never used: `GridCellPos`
Nov 04 08:38:52.855 INFO kablam!  --> src/grid_cell.rs:4:1
Nov 04 08:38:52.855 INFO kablam!   |
Nov 04 08:38:52.856 INFO kablam! 4 | type GridCellPos = (GridCell, (i8, i8));
Nov 04 08:38:52.856 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 08:38:52.856 INFO kablam!   |
Nov 04 08:38:52.856 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 04 08:38:52.856 INFO kablam! 
Nov 04 08:38:52.856 INFO kablam! warning: type alias is never used: `WordPosition`
Nov 04 08:38:52.856 INFO kablam!    --> src/generate.rs:185:5
Nov 04 08:38:52.856 INFO kablam!     |
Nov 04 08:38:52.856 INFO kablam! 185 |     type WordPosition = (&'static str, Position);
Nov 04 08:38:52.856 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 08:38:52.856 INFO kablam! 
Nov 04 08:38:52.856 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 04 08:38:52.856 INFO kablam!  --> src/main.rs:1:12
Nov 04 08:38:52.856 INFO kablam!   |
Nov 04 08:38:52.856 INFO kablam! 1 | #![feature(conservative_impl_trait)]
Nov 04 08:38:52.856 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 08:38:52.856 INFO kablam!   |
Nov 04 08:38:52.856 INFO kablam!   = note: #[warn(stable_features)] on by default
Nov 04 08:38:52.856 INFO kablam! 
Nov 04 08:38:52.893 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
Nov 04 08:38:52.899 INFO kablam! su: No module specific data is present
Nov 04 08:38:53.377 INFO running `"docker" "rm" "-f" "ab35692f64908f86f33c7ffd65ba08d063fedc1befbf5a4ea7c02bc3abb9cfe9"`
Nov 04 08:38:53.535 INFO blam! ab35692f64908f86f33c7ffd65ba08d063fedc1befbf5a4ea7c02bc3abb9cfe9