Dec 19 05:58:09.167 INFO checking voelklmichael/varidor against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 05:58:09.167 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/voelklmichael/varidor:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 05:58:09.494 INFO [stdout] fb7f608c7fca33e153981a00c4fbb526469bc15590ac4de9c33e6377703b06ae
Dec 19 05:58:09.496 INFO running `"docker" "start" "-a" "fb7f608c7fca33e153981a00c4fbb526469bc15590ac4de9c33e6377703b06ae"`
Dec 19 05:58:11.320 INFO [stderr]     Checking varidor v0.1.0 (/opt/crater/workdir)
Dec 19 05:58:12.328 INFO [stderr] warning: type alias is never used: `SquareBoard3`
Dec 19 05:58:12.328 INFO [stderr]   --> src/board_square/square_board3.rs:36:1
Dec 19 05:58:12.328 INFO [stderr]    |
Dec 19 05:58:12.328 INFO [stderr] 36 | / pub type SquareBoard3 =
Dec 19 05:58:12.328 INFO [stderr] 37 | |     SquareBoard<usize, Usize3, [WallPlaced; 2 * 3 * (3 - 1)], [WallCrossing; (3 - 1) * (3 - 1)]>;
Dec 19 05:58:12.328 INFO [stderr]    | |_________________________________________________________________________________________________^
Dec 19 05:58:12.328 INFO [stderr]    |
Dec 19 05:58:12.328 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 05:58:12.328 INFO [stderr] 
Dec 19 05:58:12.328 INFO [stderr] warning: type alias is never used: `SquareBoard4`
Dec 19 05:58:12.328 INFO [stderr]   --> src/board_square/square_board4.rs:36:1
Dec 19 05:58:12.328 INFO [stderr]    |
Dec 19 05:58:12.328 INFO [stderr] 36 | / pub type SquareBoard4 =
Dec 19 05:58:12.328 INFO [stderr] 37 | |     SquareBoard<usize, Usize4, [WallPlaced; 2 * 4 * (4 - 1)], [WallCrossing; (4 - 1) * (4 - 1)]>;
Dec 19 05:58:12.328 INFO [stderr]    | |_________________________________________________________________________________________________^
Dec 19 05:58:12.328 INFO [stderr] 
Dec 19 05:58:12.328 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 19 05:58:12.328 INFO [stderr]    --> src/board_square/mod.rs:175:13
Dec 19 05:58:12.329 INFO [stderr]     |
Dec 19 05:58:12.329 INFO [stderr] 175 | /             new_visited_fields
Dec 19 05:58:12.329 INFO [stderr] 176 | |                 .iter()
Dec 19 05:58:12.329 INFO [stderr] 177 | |                 .map(|&x| visited_fields.push(x))
Dec 19 05:58:12.329 INFO [stderr] 178 | |                 .collect::<Vec<_>>();
Dec 19 05:58:12.329 INFO [stderr]     | |_____________________________________^
Dec 19 05:58:12.329 INFO [stderr]     |
Dec 19 05:58:12.329 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 05:58:12.329 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 19 05:58:12.329 INFO [stderr] 
Dec 19 05:58:12.432 INFO [stderr] warning: type alias is never used: `Usize4`
Dec 19 05:58:12.432 INFO [stderr]   --> src/board_square/type_level_integers.rs:33:1
Dec 19 05:58:12.432 INFO [stderr]    |
Dec 19 05:58:12.432 INFO [stderr] 33 | pub type Usize4 = UsizeNext<Usize3>;
Dec 19 05:58:12.432 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:58:12.436 INFO [stderr]    |
Dec 19 05:58:12.436 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 05:58:12.436 INFO [stderr] 
Dec 19 05:58:12.436 INFO [stderr] warning: type alias is never used: `Usize5`
Dec 19 05:58:12.436 INFO [stderr]   --> src/board_square/type_level_integers.rs:34:1
Dec 19 05:58:12.436 INFO [stderr]    |
Dec 19 05:58:12.436 INFO [stderr] 34 | pub type Usize5 = UsizeNext<Usize4>;
Dec 19 05:58:12.436 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:58:12.436 INFO [stderr] 
Dec 19 05:58:12.436 INFO [stderr] warning: method is never used: `wall_lookup_unsafe`
Dec 19 05:58:12.436 INFO [stderr]    --> src/board_square/square_board.rs:200:5
Dec 19 05:58:12.436 INFO [stderr]     |
Dec 19 05:58:12.436 INFO [stderr] 200 | /     pub fn wall_lookup_unsafe(
Dec 19 05:58:12.436 INFO [stderr] 201 | |         &self,
Dec 19 05:58:12.436 INFO [stderr] 202 | |         lower_left_field: FieldIndexSquare<T>,
Dec 19 05:58:12.436 INFO [stderr] 203 | |         is_left_or_right: bool,
Dec 19 05:58:12.436 INFO [stderr] ...   |
Dec 19 05:58:12.436 INFO [stderr] 209 | |         )
Dec 19 05:58:12.436 INFO [stderr] 210 | |     }
Dec 19 05:58:12.436 INFO [stderr]     | |_____^
Dec 19 05:58:12.436 INFO [stderr] 
Dec 19 05:58:12.436 INFO [stderr] warning: method is never used: `croosing_lookup_unsafe`
Dec 19 05:58:12.436 INFO [stderr]    --> src/board_square/square_board.rs:211:5
Dec 19 05:58:12.436 INFO [stderr]     |
Dec 19 05:58:12.436 INFO [stderr] 211 |     pub fn croosing_lookup_unsafe(&self, lower_left_field: FieldIndexSquare<T>) -> WallCrossing {
Dec 19 05:58:12.436 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:58:12.436 INFO [stderr] 
Dec 19 05:58:12.436 INFO [stderr] warning: type alias is never used: `SquareBoard5`
Dec 19 05:58:12.436 INFO [stderr]   --> src/board_square/square_board5.rs:36:1
Dec 19 05:58:12.436 INFO [stderr]    |
Dec 19 05:58:12.436 INFO [stderr] 36 | / pub type SquareBoard5 =
Dec 19 05:58:12.436 INFO [stderr] 37 | |     SquareBoard<usize, Usize5, [WallPlaced; 2 * 5 * (5 - 1)], [WallCrossing; (5 - 1) * (5 - 1)]>;
Dec 19 05:58:12.436 INFO [stderr]    | |_________________________________________________________________________________________________^
Dec 19 05:58:12.436 INFO [stderr] 
Dec 19 05:58:12.436 INFO [stderr] warning: type alias is never used: `SquareBoard4`
Dec 19 05:58:12.436 INFO [stderr]   --> src/board_square/square_board4.rs:36:1
Dec 19 05:58:12.436 INFO [stderr]    |
Dec 19 05:58:12.436 INFO [stderr] 36 | / pub type SquareBoard4 =
Dec 19 05:58:12.436 INFO [stderr] 37 | |     SquareBoard<usize, Usize4, [WallPlaced; 2 * 4 * (4 - 1)], [WallCrossing; (4 - 1) * (4 - 1)]>;
Dec 19 05:58:12.436 INFO [stderr]    | |_________________________________________________________________________________________________^
Dec 19 05:58:12.436 INFO [stderr] 
Dec 19 05:58:12.436 INFO [stderr] warning: variant is never constructed: `NotConnected`
Dec 19 05:58:12.436 INFO [stderr]   --> src/board_square/mod.rs:48:5
Dec 19 05:58:12.436 INFO [stderr]    |
Dec 19 05:58:12.436 INFO [stderr] 48 |     NotConnected,
Dec 19 05:58:12.436 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 19 05:58:12.436 INFO [stderr] 
Dec 19 05:58:12.436 INFO [stderr] warning: variant is never constructed: `FieldsNotAdjacent`
Dec 19 05:58:12.436 INFO [stderr]   --> src/board_square/mod.rs:53:5
Dec 19 05:58:12.437 INFO [stderr]    |
Dec 19 05:58:12.437 INFO [stderr] 53 |     FieldsNotAdjacent,
Dec 19 05:58:12.437 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 05:58:12.437 INFO [stderr] 
Dec 19 05:58:12.437 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 19 05:58:12.437 INFO [stderr]    --> src/board_square/mod.rs:175:13
Dec 19 05:58:12.437 INFO [stderr]     |
Dec 19 05:58:12.437 INFO [stderr] 175 | /             new_visited_fields
Dec 19 05:58:12.437 INFO [stderr] 176 | |                 .iter()
Dec 19 05:58:12.437 INFO [stderr] 177 | |                 .map(|&x| visited_fields.push(x))
Dec 19 05:58:12.437 INFO [stderr] 178 | |                 .collect::<Vec<_>>();
Dec 19 05:58:12.437 INFO [stderr]     | |_____________________________________^
Dec 19 05:58:12.437 INFO [stderr]     |
Dec 19 05:58:12.437 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 05:58:12.437 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 19 05:58:12.437 INFO [stderr] 
Dec 19 05:58:12.611 INFO [stderr] warning: type alias is never used: `Usize4`
Dec 19 05:58:12.611 INFO [stderr]   --> src/board_square/type_level_integers.rs:33:1
Dec 19 05:58:12.612 INFO [stderr]    |
Dec 19 05:58:12.612 INFO [stderr] 33 | pub type Usize4 = UsizeNext<Usize3>;
Dec 19 05:58:12.612 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:58:12.612 INFO [stderr]    |
Dec 19 05:58:12.612 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 05:58:12.612 INFO [stderr] 
Dec 19 05:58:12.612 INFO [stderr] warning: type alias is never used: `Usize5`
Dec 19 05:58:12.612 INFO [stderr]   --> src/board_square/type_level_integers.rs:34:1
Dec 19 05:58:12.612 INFO [stderr]    |
Dec 19 05:58:12.612 INFO [stderr] 34 | pub type Usize5 = UsizeNext<Usize4>;
Dec 19 05:58:12.612 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:58:12.612 INFO [stderr] 
Dec 19 05:58:12.612 INFO [stderr] warning: method is never used: `wall_lookup_unsafe`
Dec 19 05:58:12.612 INFO [stderr]    --> src/board_square/square_board.rs:200:5
Dec 19 05:58:12.612 INFO [stderr]     |
Dec 19 05:58:12.612 INFO [stderr] 200 | /     pub fn wall_lookup_unsafe(
Dec 19 05:58:12.612 INFO [stderr] 201 | |         &self,
Dec 19 05:58:12.612 INFO [stderr] 202 | |         lower_left_field: FieldIndexSquare<T>,
Dec 19 05:58:12.612 INFO [stderr] 203 | |         is_left_or_right: bool,
Dec 19 05:58:12.612 INFO [stderr] ...   |
Dec 19 05:58:12.612 INFO [stderr] 209 | |         )
Dec 19 05:58:12.612 INFO [stderr] 210 | |     }
Dec 19 05:58:12.612 INFO [stderr]     | |_____^
Dec 19 05:58:12.612 INFO [stderr] 
Dec 19 05:58:12.616 INFO [stderr] warning: method is never used: `croosing_lookup_unsafe`
Dec 19 05:58:12.616 INFO [stderr]    --> src/board_square/square_board.rs:211:5
Dec 19 05:58:12.616 INFO [stderr]     |
Dec 19 05:58:12.616 INFO [stderr] 211 |     pub fn croosing_lookup_unsafe(&self, lower_left_field: FieldIndexSquare<T>) -> WallCrossing {
Dec 19 05:58:12.616 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:58:12.616 INFO [stderr] 
Dec 19 05:58:12.616 INFO [stderr] warning: type alias is never used: `SquareBoard5`
Dec 19 05:58:12.616 INFO [stderr]   --> src/board_square/square_board5.rs:36:1
Dec 19 05:58:12.616 INFO [stderr]    |
Dec 19 05:58:12.616 INFO [stderr] 36 | / pub type SquareBoard5 =
Dec 19 05:58:12.616 INFO [stderr] 37 | |     SquareBoard<usize, Usize5, [WallPlaced; 2 * 5 * (5 - 1)], [WallCrossing; (5 - 1) * (5 - 1)]>;
Dec 19 05:58:12.616 INFO [stderr]    | |_________________________________________________________________________________________________^
Dec 19 05:58:12.616 INFO [stderr] 
Dec 19 05:58:12.616 INFO [stderr] warning: type alias is never used: `SquareBoard4`
Dec 19 05:58:12.616 INFO [stderr]   --> src/board_square/square_board4.rs:36:1
Dec 19 05:58:12.616 INFO [stderr]    |
Dec 19 05:58:12.616 INFO [stderr] 36 | / pub type SquareBoard4 =
Dec 19 05:58:12.616 INFO [stderr] 37 | |     SquareBoard<usize, Usize4, [WallPlaced; 2 * 4 * (4 - 1)], [WallCrossing; (4 - 1) * (4 - 1)]>;
Dec 19 05:58:12.616 INFO [stderr]    | |_________________________________________________________________________________________________^
Dec 19 05:58:12.616 INFO [stderr] 
Dec 19 05:58:12.616 INFO [stderr] warning: variant is never constructed: `NotConnected`
Dec 19 05:58:12.616 INFO [stderr]   --> src/board_square/mod.rs:48:5
Dec 19 05:58:12.616 INFO [stderr]    |
Dec 19 05:58:12.616 INFO [stderr] 48 |     NotConnected,
Dec 19 05:58:12.616 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 19 05:58:12.616 INFO [stderr] 
Dec 19 05:58:12.616 INFO [stderr] warning: variant is never constructed: `FieldsNotAdjacent`
Dec 19 05:58:12.616 INFO [stderr]   --> src/board_square/mod.rs:53:5
Dec 19 05:58:12.616 INFO [stderr]    |
Dec 19 05:58:12.616 INFO [stderr] 53 |     FieldsNotAdjacent,
Dec 19 05:58:12.616 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 05:58:12.616 INFO [stderr] 
Dec 19 05:58:12.616 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 19 05:58:12.616 INFO [stderr]    --> src/board_square/mod.rs:175:13
Dec 19 05:58:12.616 INFO [stderr]     |
Dec 19 05:58:12.616 INFO [stderr] 175 | /             new_visited_fields
Dec 19 05:58:12.616 INFO [stderr] 176 | |                 .iter()
Dec 19 05:58:12.616 INFO [stderr] 177 | |                 .map(|&x| visited_fields.push(x))
Dec 19 05:58:12.616 INFO [stderr] 178 | |                 .collect::<Vec<_>>();
Dec 19 05:58:12.616 INFO [stderr]     | |_____________________________________^
Dec 19 05:58:12.616 INFO [stderr]     |
Dec 19 05:58:12.616 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 05:58:12.616 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 19 05:58:12.616 INFO [stderr] 
Dec 19 05:58:12.676 INFO [stderr] warning: type alias is never used: `SquareBoard3`
Dec 19 05:58:12.676 INFO [stderr]   --> src/board_square/square_board3.rs:36:1
Dec 19 05:58:12.676 INFO [stderr]    |
Dec 19 05:58:12.676 INFO [stderr] 36 | / pub type SquareBoard3 =
Dec 19 05:58:12.676 INFO [stderr] 37 | |     SquareBoard<usize, Usize3, [WallPlaced; 2 * 3 * (3 - 1)], [WallCrossing; (3 - 1) * (3 - 1)]>;
Dec 19 05:58:12.676 INFO [stderr]    | |_________________________________________________________________________________________________^
Dec 19 05:58:12.676 INFO [stderr]    |
Dec 19 05:58:12.676 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 05:58:12.676 INFO [stderr] 
Dec 19 05:58:12.676 INFO [stderr] warning: type alias is never used: `SquareBoard4`
Dec 19 05:58:12.676 INFO [stderr]   --> src/board_square/square_board4.rs:36:1
Dec 19 05:58:12.676 INFO [stderr]    |
Dec 19 05:58:12.676 INFO [stderr] 36 | / pub type SquareBoard4 =
Dec 19 05:58:12.676 INFO [stderr] 37 | |     SquareBoard<usize, Usize4, [WallPlaced; 2 * 4 * (4 - 1)], [WallCrossing; (4 - 1) * (4 - 1)]>;
Dec 19 05:58:12.676 INFO [stderr]    | |_________________________________________________________________________________________________^
Dec 19 05:58:12.676 INFO [stderr] 
Dec 19 05:58:12.676 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 19 05:58:12.676 INFO [stderr]    --> src/board_square/mod.rs:175:13
Dec 19 05:58:12.676 INFO [stderr]     |
Dec 19 05:58:12.676 INFO [stderr] 175 | /             new_visited_fields
Dec 19 05:58:12.676 INFO [stderr] 176 | |                 .iter()
Dec 19 05:58:12.676 INFO [stderr] 177 | |                 .map(|&x| visited_fields.push(x))
Dec 19 05:58:12.676 INFO [stderr] 178 | |                 .collect::<Vec<_>>();
Dec 19 05:58:12.676 INFO [stderr]     | |_____________________________________^
Dec 19 05:58:12.676 INFO [stderr]     |
Dec 19 05:58:12.676 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 05:58:12.679 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 19 05:58:12.679 INFO [stderr] 
Dec 19 05:58:12.744 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
Dec 19 05:58:13.398 INFO running `"docker" "inspect" "fb7f608c7fca33e153981a00c4fbb526469bc15590ac4de9c33e6377703b06ae"`
Dec 19 05:58:13.578 INFO running `"docker" "rm" "-f" "fb7f608c7fca33e153981a00c4fbb526469bc15590ac4de9c33e6377703b06ae"`
Dec 19 05:58:13.860 INFO [stdout] fb7f608c7fca33e153981a00c4fbb526469bc15590ac4de9c33e6377703b06ae