[INFO] updating cached repository kgtkr/othello
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kgtkr/othello
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kgtkr/othello" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/kgtkr/othello"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/kgtkr/othello'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kgtkr/othello" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/kgtkr/othello"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/kgtkr/othello'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 98701536d5c8700feaae439a78d0c4d6a7c0425f
[INFO] sha for GitHub repo kgtkr/othello: 98701536d5c8700feaae439a78d0c4d6a7c0425f
[INFO] validating manifest of kgtkr/othello on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kgtkr/othello on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kgtkr/othello
[INFO] finished frobbing kgtkr/othello
[INFO] frobbed toml for kgtkr/othello written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/kgtkr/othello/Cargo.toml
[INFO] started frobbing kgtkr/othello
[INFO] finished frobbing kgtkr/othello
[INFO] frobbed toml for kgtkr/othello written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/kgtkr/othello/Cargo.toml
[INFO] crate kgtkr/othello already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kgtkr/othello against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-5/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/kgtkr/othello:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e7b3854d3422d041db06f0cb597458f0cb90707b9be6fa6fa4c51dc1ea4cb3bf
[INFO] running `"docker" "start" "-a" "e7b3854d3422d041db06f0cb597458f0cb90707b9be6fa6fa4c51dc1ea4cb3bf"`
[INFO] [stderr]     Checking othello v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Black`
[INFO] [stderr]  --> src/game.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   Black,
[INFO] [stderr]   |   ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `While`
[INFO] [stderr]  --> src/game.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   While,
[INFO] [stderr]   |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Cell`
[INFO] [stderr]  --> src/game.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | type Cell = Option<Piece>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Board`
[INFO] [stderr]  --> src/game.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | type Board = [[Cell; 8]; 8];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Next`
[INFO] [stderr]   --> src/game.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   Next(Piece),
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pass`
[INFO] [stderr]   --> src/game.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   Pass(Piece),
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IndexOutOf`
[INFO] [stderr]   --> src/game.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   IndexOutOf,
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Already`
[INFO] [stderr]   --> src/game.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   Already,
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ZeroReverse`
[INFO] [stderr]   --> src/game.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   ZeroReverse,
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `End`
[INFO] [stderr]   --> src/game.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |   End(usize, usize),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Game`
[INFO] [stderr]   --> src/game.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct Game {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `size`
[INFO] [stderr]   --> src/game.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   const size: usize = 8;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/game.rs:28:3
[INFO] [stderr]    |
[INFO] [stderr] 28 |   pub fn new() -> Game {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next`
[INFO] [stderr]   --> src/game.rs:63:3
[INFO] [stderr]    |
[INFO] [stderr] 63 |   pub fn next() -> GameResult {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant `size` should have an upper case name
[INFO] [stderr]   --> src/game.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |   const size: usize = 8;
[INFO] [stderr]    |         ^^^^ help: convert the identifier to upper case: `SIZE`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Black`
[INFO] [stderr]  --> src/game.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   Black,
[INFO] [stderr]   |   ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `While`
[INFO] [stderr]  --> src/game.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   While,
[INFO] [stderr]   |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Cell`
[INFO] [stderr]  --> src/game.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | type Cell = Option<Piece>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Board`
[INFO] [stderr]  --> src/game.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | type Board = [[Cell; 8]; 8];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Next`
[INFO] [stderr]   --> src/game.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   Next(Piece),
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pass`
[INFO] [stderr]   --> src/game.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   Pass(Piece),
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IndexOutOf`
[INFO] [stderr]   --> src/game.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   IndexOutOf,
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Already`
[INFO] [stderr]   --> src/game.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   Already,
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ZeroReverse`
[INFO] [stderr]   --> src/game.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   ZeroReverse,
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `End`
[INFO] [stderr]   --> src/game.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |   End(usize, usize),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Game`
[INFO] [stderr]   --> src/game.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct Game {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `size`
[INFO] [stderr]   --> src/game.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   const size: usize = 8;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/game.rs:28:3
[INFO] [stderr]    |
[INFO] [stderr] 28 |   pub fn new() -> Game {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next`
[INFO] [stderr]   --> src/game.rs:63:3
[INFO] [stderr]    |
[INFO] [stderr] 63 |   pub fn next() -> GameResult {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant `size` should have an upper case name
[INFO] [stderr]   --> src/game.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |   const size: usize = 8;
[INFO] [stderr]    |         ^^^^ help: convert the identifier to upper case: `SIZE`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `"docker" "inspect" "e7b3854d3422d041db06f0cb597458f0cb90707b9be6fa6fa4c51dc1ea4cb3bf"`
[INFO] running `"docker" "rm" "-f" "e7b3854d3422d041db06f0cb597458f0cb90707b9be6fa6fa4c51dc1ea4cb3bf"`
[INFO] [stdout] e7b3854d3422d041db06f0cb597458f0cb90707b9be6fa6fa4c51dc1ea4cb3bf