[INFO] updating cached repository voelklmichael/varidor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/voelklmichael/varidor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/voelklmichael/varidor" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/voelklmichael/varidor"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/voelklmichael/varidor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/voelklmichael/varidor" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/voelklmichael/varidor"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/voelklmichael/varidor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ba8691397116cc03e96eb6721db8449ff1bfca68
[INFO] sha for GitHub repo voelklmichael/varidor: ba8691397116cc03e96eb6721db8449ff1bfca68
[INFO] validating manifest of voelklmichael/varidor on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of voelklmichael/varidor on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing voelklmichael/varidor
[INFO] finished frobbing voelklmichael/varidor
[INFO] frobbed toml for voelklmichael/varidor written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/voelklmichael/varidor/Cargo.toml
[INFO] started frobbing voelklmichael/varidor
[INFO] finished frobbing voelklmichael/varidor
[INFO] frobbed toml for voelklmichael/varidor written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/voelklmichael/varidor/Cargo.toml
[INFO] crate voelklmichael/varidor has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing voelklmichael/varidor against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 1404485fbe0687f27cfd22226604747f7a30dc3accc39262883428f73cf97106
[INFO] running `"docker" "start" "-a" "1404485fbe0687f27cfd22226604747f7a30dc3accc39262883428f73cf97106"`
[INFO] [stderr]    Compiling varidor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: type alias is never used: `Usize4`
[INFO] [stderr]   --> src/board_square/type_level_integers.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub type Usize4 = UsizeNext<Usize3>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Usize5`
[INFO] [stderr]   --> src/board_square/type_level_integers.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub type Usize5 = UsizeNext<Usize4>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `wall_lookup_unsafe`
[INFO] [stderr]    --> src/board_square/square_board.rs:200:5
[INFO] [stderr]     |
[INFO] [stderr] 200 | /     pub fn wall_lookup_unsafe(
[INFO] [stderr] 201 | |         &self,
[INFO] [stderr] 202 | |         lower_left_field: FieldIndexSquare<T>,
[INFO] [stderr] 203 | |         is_left_or_right: bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 209 | |         )
[INFO] [stderr] 210 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `croosing_lookup_unsafe`
[INFO] [stderr]    --> src/board_square/square_board.rs:211:5
[INFO] [stderr]     |
[INFO] [stderr] 211 |     pub fn croosing_lookup_unsafe(&self, lower_left_field: FieldIndexSquare<T>) -> WallCrossing {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SquareBoard5`
[INFO] [stderr]   --> src/board_square/square_board5.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / pub type SquareBoard5 =
[INFO] [stderr] 37 | |     SquareBoard<usize, Usize5, [WallPlaced; 2 * 5 * (5 - 1)], [WallCrossing; (5 - 1) * (5 - 1)]>;
[INFO] [stderr]    | |_________________________________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SquareBoard4`
[INFO] [stderr]   --> src/board_square/square_board4.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / pub type SquareBoard4 =
[INFO] [stderr] 37 | |     SquareBoard<usize, Usize4, [WallPlaced; 2 * 4 * (4 - 1)], [WallCrossing; (4 - 1) * (4 - 1)]>;
[INFO] [stderr]    | |_________________________________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotConnected`
[INFO] [stderr]   --> src/board_square/mod.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     NotConnected,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FieldsNotAdjacent`
[INFO] [stderr]   --> src/board_square/mod.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     FieldsNotAdjacent,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]    --> src/board_square/mod.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 | /             new_visited_fields
[INFO] [stderr] 176 | |                 .iter()
[INFO] [stderr] 177 | |                 .map(|&x| visited_fields.push(x))
[INFO] [stderr] 178 | |                 .collect::<Vec<_>>();
[INFO] [stderr]     | |_____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SquareBoard3`
[INFO] [stderr]   --> src/board_square/square_board3.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / pub type SquareBoard3 =
[INFO] [stderr] 37 | |     SquareBoard<usize, Usize3, [WallPlaced; 2 * 3 * (3 - 1)], [WallCrossing; (3 - 1) * (3 - 1)]>;
[INFO] [stderr]    | |_________________________________________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SquareBoard4`
[INFO] [stderr]   --> src/board_square/square_board4.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / pub type SquareBoard4 =
[INFO] [stderr] 37 | |     SquareBoard<usize, Usize4, [WallPlaced; 2 * 4 * (4 - 1)], [WallCrossing; (4 - 1) * (4 - 1)]>;
[INFO] [stderr]    | |_________________________________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]    --> src/board_square/mod.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 | /             new_visited_fields
[INFO] [stderr] 176 | |                 .iter()
[INFO] [stderr] 177 | |                 .map(|&x| visited_fields.push(x))
[INFO] [stderr] 178 | |                 .collect::<Vec<_>>();
[INFO] [stderr]     | |_____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `"docker" "inspect" "1404485fbe0687f27cfd22226604747f7a30dc3accc39262883428f73cf97106"`
[INFO] running `"docker" "rm" "-f" "1404485fbe0687f27cfd22226604747f7a30dc3accc39262883428f73cf97106"`
[INFO] [stdout] 1404485fbe0687f27cfd22226604747f7a30dc3accc39262883428f73cf97106
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2404eec48779bf626645d9ca0798665ddb216aecb6d00dc313d4f6d4ce598788
[INFO] running `"docker" "start" "-a" "2404eec48779bf626645d9ca0798665ddb216aecb6d00dc313d4f6d4ce598788"`
[INFO] [stderr]    Compiling varidor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: type alias is never used: `SquareBoard3`
[INFO] [stderr]   --> src/board_square/square_board3.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / pub type SquareBoard3 =
[INFO] [stderr] 37 | |     SquareBoard<usize, Usize3, [WallPlaced; 2 * 3 * (3 - 1)], [WallCrossing; (3 - 1) * (3 - 1)]>;
[INFO] [stderr]    | |_________________________________________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SquareBoard4`
[INFO] [stderr]   --> src/board_square/square_board4.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / pub type SquareBoard4 =
[INFO] [stderr] 37 | |     SquareBoard<usize, Usize4, [WallPlaced; 2 * 4 * (4 - 1)], [WallCrossing; (4 - 1) * (4 - 1)]>;
[INFO] [stderr]    | |_________________________________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]    --> src/board_square/mod.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 | /             new_visited_fields
[INFO] [stderr] 176 | |                 .iter()
[INFO] [stderr] 177 | |                 .map(|&x| visited_fields.push(x))
[INFO] [stderr] 178 | |                 .collect::<Vec<_>>();
[INFO] [stderr]     | |_____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Usize4`
[INFO] [stderr]   --> src/board_square/type_level_integers.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub type Usize4 = UsizeNext<Usize3>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Usize5`
[INFO] [stderr]   --> src/board_square/type_level_integers.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub type Usize5 = UsizeNext<Usize4>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `wall_lookup_unsafe`
[INFO] [stderr]    --> src/board_square/square_board.rs:200:5
[INFO] [stderr]     |
[INFO] [stderr] 200 | /     pub fn wall_lookup_unsafe(
[INFO] [stderr] 201 | |         &self,
[INFO] [stderr] 202 | |         lower_left_field: FieldIndexSquare<T>,
[INFO] [stderr] 203 | |         is_left_or_right: bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 209 | |         )
[INFO] [stderr] 210 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `croosing_lookup_unsafe`
[INFO] [stderr]    --> src/board_square/square_board.rs:211:5
[INFO] [stderr]     |
[INFO] [stderr] 211 |     pub fn croosing_lookup_unsafe(&self, lower_left_field: FieldIndexSquare<T>) -> WallCrossing {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SquareBoard5`
[INFO] [stderr]   --> src/board_square/square_board5.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / pub type SquareBoard5 =
[INFO] [stderr] 37 | |     SquareBoard<usize, Usize5, [WallPlaced; 2 * 5 * (5 - 1)], [WallCrossing; (5 - 1) * (5 - 1)]>;
[INFO] [stderr]    | |_________________________________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SquareBoard4`
[INFO] [stderr]   --> src/board_square/square_board4.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / pub type SquareBoard4 =
[INFO] [stderr] 37 | |     SquareBoard<usize, Usize4, [WallPlaced; 2 * 4 * (4 - 1)], [WallCrossing; (4 - 1) * (4 - 1)]>;
[INFO] [stderr]    | |_________________________________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotConnected`
[INFO] [stderr]   --> src/board_square/mod.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     NotConnected,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FieldsNotAdjacent`
[INFO] [stderr]   --> src/board_square/mod.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     FieldsNotAdjacent,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]    --> src/board_square/mod.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 | /             new_visited_fields
[INFO] [stderr] 176 | |                 .iter()
[INFO] [stderr] 177 | |                 .map(|&x| visited_fields.push(x))
[INFO] [stderr] 178 | |                 .collect::<Vec<_>>();
[INFO] [stderr]     | |_____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `"docker" "inspect" "2404eec48779bf626645d9ca0798665ddb216aecb6d00dc313d4f6d4ce598788"`
[INFO] running `"docker" "rm" "-f" "2404eec48779bf626645d9ca0798665ddb216aecb6d00dc313d4f6d4ce598788"`
[INFO] [stdout] 2404eec48779bf626645d9ca0798665ddb216aecb6d00dc313d4f6d4ce598788
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 09fc21ef7a930dfdd12527adaf7c19e9fca7ac8e11d6646ce9e55a254a2f0c07
[INFO] running `"docker" "start" "-a" "09fc21ef7a930dfdd12527adaf7c19e9fca7ac8e11d6646ce9e55a254a2f0c07"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/varidor-64b64144941bca6c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/varidor-02adf96747fb5a80
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "09fc21ef7a930dfdd12527adaf7c19e9fca7ac8e11d6646ce9e55a254a2f0c07"`
[INFO] running `"docker" "rm" "-f" "09fc21ef7a930dfdd12527adaf7c19e9fca7ac8e11d6646ce9e55a254a2f0c07"`
[INFO] [stdout] 09fc21ef7a930dfdd12527adaf7c19e9fca7ac8e11d6646ce9e55a254a2f0c07