Dec 19 14:23:16.168 INFO checking kgtkr/othello against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 14:23:16.168 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/kgtkr/othello:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 14:23:16.642 INFO [stdout] 701692f07bca70e896c956131157454cc87cb9d0c60748abbbfd0ad02f93ddcb
Dec 19 14:23:16.644 INFO running `"docker" "start" "-a" "701692f07bca70e896c956131157454cc87cb9d0c60748abbbfd0ad02f93ddcb"`
Dec 19 14:23:18.328 INFO [stderr]     Checking othello v0.1.0 (/opt/crater/workdir)
Dec 19 14:23:18.586 INFO [stderr] warning: variant is never constructed: `Black`
Dec 19 14:23:18.586 INFO [stderr]  --> src/game.rs:3:3
Dec 19 14:23:18.586 INFO [stderr]   |
Dec 19 14:23:18.586 INFO [stderr] 3 |   Black,
Dec 19 14:23:18.586 INFO [stderr]   |   ^^^^^
Dec 19 14:23:18.586 INFO [stderr]   |
Dec 19 14:23:18.586 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 14:23:18.586 INFO [stderr] 
Dec 19 14:23:18.586 INFO [stderr] warning: variant is never constructed: `While`
Dec 19 14:23:18.586 INFO [stderr]  --> src/game.rs:4:3
Dec 19 14:23:18.587 INFO [stderr]   |
Dec 19 14:23:18.587 INFO [stderr] 4 |   While,
Dec 19 14:23:18.587 INFO [stderr]   |   ^^^^^
Dec 19 14:23:18.587 INFO [stderr] 
Dec 19 14:23:18.587 INFO [stderr] warning: type alias is never used: `Cell`
Dec 19 14:23:18.587 INFO [stderr]  --> src/game.rs:7:1
Dec 19 14:23:18.587 INFO [stderr]   |
Dec 19 14:23:18.587 INFO [stderr] 7 | type Cell = Option<Piece>;
Dec 19 14:23:18.587 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.587 INFO [stderr] 
Dec 19 14:23:18.587 INFO [stderr] warning: type alias is never used: `Board`
Dec 19 14:23:18.587 INFO [stderr]  --> src/game.rs:8:1
Dec 19 14:23:18.587 INFO [stderr]   |
Dec 19 14:23:18.587 INFO [stderr] 8 | type Board = [[Cell; 8]; 8];
Dec 19 14:23:18.587 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.587 INFO [stderr] 
Dec 19 14:23:18.587 INFO [stderr] warning: variant is never constructed: `Next`
Dec 19 14:23:18.587 INFO [stderr]   --> src/game.rs:12:3
Dec 19 14:23:18.587 INFO [stderr]    |
Dec 19 14:23:18.587 INFO [stderr] 12 |   Next(Piece),
Dec 19 14:23:18.587 INFO [stderr]    |   ^^^^^^^^^^^
Dec 19 14:23:18.587 INFO [stderr] 
Dec 19 14:23:18.587 INFO [stderr] warning: variant is never constructed: `Pass`
Dec 19 14:23:18.587 INFO [stderr]   --> src/game.rs:13:3
Dec 19 14:23:18.587 INFO [stderr]    |
Dec 19 14:23:18.587 INFO [stderr] 13 |   Pass(Piece),
Dec 19 14:23:18.587 INFO [stderr]    |   ^^^^^^^^^^^
Dec 19 14:23:18.587 INFO [stderr] 
Dec 19 14:23:18.587 INFO [stderr] warning: variant is never constructed: `IndexOutOf`
Dec 19 14:23:18.587 INFO [stderr]   --> src/game.rs:14:3
Dec 19 14:23:18.587 INFO [stderr]    |
Dec 19 14:23:18.587 INFO [stderr] 14 |   IndexOutOf,
Dec 19 14:23:18.587 INFO [stderr]    |   ^^^^^^^^^^
Dec 19 14:23:18.587 INFO [stderr] 
Dec 19 14:23:18.588 INFO [stderr] warning: variant is never constructed: `Already`
Dec 19 14:23:18.588 INFO [stderr]   --> src/game.rs:15:3
Dec 19 14:23:18.588 INFO [stderr]    |
Dec 19 14:23:18.588 INFO [stderr] 15 |   Already,
Dec 19 14:23:18.588 INFO [stderr]    |   ^^^^^^^
Dec 19 14:23:18.588 INFO [stderr] 
Dec 19 14:23:18.588 INFO [stderr] warning: variant is never constructed: `ZeroReverse`
Dec 19 14:23:18.588 INFO [stderr]   --> src/game.rs:16:3
Dec 19 14:23:18.588 INFO [stderr]    |
Dec 19 14:23:18.588 INFO [stderr] 16 |   ZeroReverse,
Dec 19 14:23:18.588 INFO [stderr]    |   ^^^^^^^^^^^
Dec 19 14:23:18.588 INFO [stderr] 
Dec 19 14:23:18.588 INFO [stderr] warning: variant is never constructed: `End`
Dec 19 14:23:18.588 INFO [stderr]   --> src/game.rs:17:3
Dec 19 14:23:18.588 INFO [stderr]    |
Dec 19 14:23:18.597 INFO [stderr] 17 |   End(usize, usize),
Dec 19 14:23:18.597 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.597 INFO [stderr] 
Dec 19 14:23:18.597 INFO [stderr] warning: struct is never constructed: `Game`
Dec 19 14:23:18.597 INFO [stderr]   --> src/game.rs:20:1
Dec 19 14:23:18.597 INFO [stderr]    |
Dec 19 14:23:18.597 INFO [stderr] 20 | struct Game {
Dec 19 14:23:18.597 INFO [stderr]    | ^^^^^^^^^^^
Dec 19 14:23:18.597 INFO [stderr] 
Dec 19 14:23:18.597 INFO [stderr] warning: associated const is never used: `size`
Dec 19 14:23:18.597 INFO [stderr]   --> src/game.rs:26:3
Dec 19 14:23:18.597 INFO [stderr]    |
Dec 19 14:23:18.597 INFO [stderr] 26 |   const size: usize = 8;
Dec 19 14:23:18.597 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.597 INFO [stderr] 
Dec 19 14:23:18.597 INFO [stderr] warning: method is never used: `new`
Dec 19 14:23:18.597 INFO [stderr]   --> src/game.rs:28:3
Dec 19 14:23:18.597 INFO [stderr]    |
Dec 19 14:23:18.597 INFO [stderr] 28 |   pub fn new() -> Game {
Dec 19 14:23:18.597 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.597 INFO [stderr] 
Dec 19 14:23:18.597 INFO [stderr] warning: method is never used: `next`
Dec 19 14:23:18.597 INFO [stderr]   --> src/game.rs:63:3
Dec 19 14:23:18.597 INFO [stderr]    |
Dec 19 14:23:18.597 INFO [stderr] 63 |   pub fn next() -> GameResult {
Dec 19 14:23:18.597 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.597 INFO [stderr] 
Dec 19 14:23:18.597 INFO [stderr] warning: associated constant `size` should have an upper case name such as `SIZE`
Dec 19 14:23:18.597 INFO [stderr]   --> src/game.rs:26:3
Dec 19 14:23:18.597 INFO [stderr]    |
Dec 19 14:23:18.597 INFO [stderr] 26 |   const size: usize = 8;
Dec 19 14:23:18.597 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.597 INFO [stderr]    |
Dec 19 14:23:18.597 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 19 14:23:18.597 INFO [stderr] 
Dec 19 14:23:18.673 INFO [stderr] warning: variant is never constructed: `Black`
Dec 19 14:23:18.673 INFO [stderr]  --> src/game.rs:3:3
Dec 19 14:23:18.673 INFO [stderr]   |
Dec 19 14:23:18.673 INFO [stderr] 3 |   Black,
Dec 19 14:23:18.673 INFO [stderr]   |   ^^^^^
Dec 19 14:23:18.674 INFO [stderr]   |
Dec 19 14:23:18.674 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 14:23:18.674 INFO [stderr] 
Dec 19 14:23:18.674 INFO [stderr] warning: variant is never constructed: `While`
Dec 19 14:23:18.674 INFO [stderr]  --> src/game.rs:4:3
Dec 19 14:23:18.674 INFO [stderr]   |
Dec 19 14:23:18.674 INFO [stderr] 4 |   While,
Dec 19 14:23:18.674 INFO [stderr]   |   ^^^^^
Dec 19 14:23:18.675 INFO [stderr] 
Dec 19 14:23:18.675 INFO [stderr] warning: type alias is never used: `Cell`
Dec 19 14:23:18.675 INFO [stderr]  --> src/game.rs:7:1
Dec 19 14:23:18.675 INFO [stderr]   |
Dec 19 14:23:18.675 INFO [stderr] 7 | type Cell = Option<Piece>;
Dec 19 14:23:18.675 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.675 INFO [stderr] 
Dec 19 14:23:18.675 INFO [stderr] warning: type alias is never used: `Board`
Dec 19 14:23:18.675 INFO [stderr]  --> src/game.rs:8:1
Dec 19 14:23:18.675 INFO [stderr]   |
Dec 19 14:23:18.675 INFO [stderr] 8 | type Board = [[Cell; 8]; 8];
Dec 19 14:23:18.675 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.675 INFO [stderr] 
Dec 19 14:23:18.675 INFO [stderr] warning: variant is never constructed: `Next`
Dec 19 14:23:18.675 INFO [stderr]   --> src/game.rs:12:3
Dec 19 14:23:18.675 INFO [stderr]    |
Dec 19 14:23:18.675 INFO [stderr] 12 |   Next(Piece),
Dec 19 14:23:18.675 INFO [stderr]    |   ^^^^^^^^^^^
Dec 19 14:23:18.675 INFO [stderr] 
Dec 19 14:23:18.675 INFO [stderr] warning: variant is never constructed: `Pass`
Dec 19 14:23:18.675 INFO [stderr]   --> src/game.rs:13:3
Dec 19 14:23:18.675 INFO [stderr]    |
Dec 19 14:23:18.675 INFO [stderr] 13 |   Pass(Piece),
Dec 19 14:23:18.676 INFO [stderr]    |   ^^^^^^^^^^^
Dec 19 14:23:18.676 INFO [stderr] 
Dec 19 14:23:18.676 INFO [stderr] warning: variant is never constructed: `IndexOutOf`
Dec 19 14:23:18.676 INFO [stderr]   --> src/game.rs:14:3
Dec 19 14:23:18.676 INFO [stderr]    |
Dec 19 14:23:18.676 INFO [stderr] 14 |   IndexOutOf,
Dec 19 14:23:18.676 INFO [stderr]    |   ^^^^^^^^^^
Dec 19 14:23:18.676 INFO [stderr] 
Dec 19 14:23:18.676 INFO [stderr] warning: variant is never constructed: `Already`
Dec 19 14:23:18.676 INFO [stderr]   --> src/game.rs:15:3
Dec 19 14:23:18.676 INFO [stderr]    |
Dec 19 14:23:18.676 INFO [stderr] 15 |   Already,
Dec 19 14:23:18.676 INFO [stderr]    |   ^^^^^^^
Dec 19 14:23:18.676 INFO [stderr] 
Dec 19 14:23:18.676 INFO [stderr] warning: variant is never constructed: `ZeroReverse`
Dec 19 14:23:18.676 INFO [stderr]   --> src/game.rs:16:3
Dec 19 14:23:18.676 INFO [stderr]    |
Dec 19 14:23:18.676 INFO [stderr] 16 |   ZeroReverse,
Dec 19 14:23:18.676 INFO [stderr]    |   ^^^^^^^^^^^
Dec 19 14:23:18.676 INFO [stderr] 
Dec 19 14:23:18.676 INFO [stderr] warning: variant is never constructed: `End`
Dec 19 14:23:18.676 INFO [stderr]   --> src/game.rs:17:3
Dec 19 14:23:18.676 INFO [stderr]    |
Dec 19 14:23:18.676 INFO [stderr] 17 |   End(usize, usize),
Dec 19 14:23:18.676 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.676 INFO [stderr] 
Dec 19 14:23:18.676 INFO [stderr] warning: struct is never constructed: `Game`
Dec 19 14:23:18.676 INFO [stderr]   --> src/game.rs:20:1
Dec 19 14:23:18.676 INFO [stderr]    |
Dec 19 14:23:18.676 INFO [stderr] 20 | struct Game {
Dec 19 14:23:18.676 INFO [stderr]    | ^^^^^^^^^^^
Dec 19 14:23:18.676 INFO [stderr] 
Dec 19 14:23:18.676 INFO [stderr] warning: associated const is never used: `size`
Dec 19 14:23:18.676 INFO [stderr]   --> src/game.rs:26:3
Dec 19 14:23:18.676 INFO [stderr]    |
Dec 19 14:23:18.676 INFO [stderr] 26 |   const size: usize = 8;
Dec 19 14:23:18.676 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.676 INFO [stderr] 
Dec 19 14:23:18.676 INFO [stderr] warning: method is never used: `new`
Dec 19 14:23:18.676 INFO [stderr]   --> src/game.rs:28:3
Dec 19 14:23:18.676 INFO [stderr]    |
Dec 19 14:23:18.676 INFO [stderr] 28 |   pub fn new() -> Game {
Dec 19 14:23:18.676 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.676 INFO [stderr] 
Dec 19 14:23:18.677 INFO [stderr] warning: method is never used: `next`
Dec 19 14:23:18.677 INFO [stderr]   --> src/game.rs:63:3
Dec 19 14:23:18.677 INFO [stderr]    |
Dec 19 14:23:18.677 INFO [stderr] 63 |   pub fn next() -> GameResult {
Dec 19 14:23:18.677 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.677 INFO [stderr] 
Dec 19 14:23:18.677 INFO [stderr] warning: associated constant `size` should have an upper case name such as `SIZE`
Dec 19 14:23:18.677 INFO [stderr]   --> src/game.rs:26:3
Dec 19 14:23:18.677 INFO [stderr]    |
Dec 19 14:23:18.677 INFO [stderr] 26 |   const size: usize = 8;
Dec 19 14:23:18.677 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:23:18.677 INFO [stderr]    |
Dec 19 14:23:18.677 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 19 14:23:18.677 INFO [stderr] 
Dec 19 14:23:18.701 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 19 14:23:19.794 INFO running `"docker" "inspect" "701692f07bca70e896c956131157454cc87cb9d0c60748abbbfd0ad02f93ddcb"`
Dec 19 14:23:20.058 INFO running `"docker" "rm" "-f" "701692f07bca70e896c956131157454cc87cb9d0c60748abbbfd0ad02f93ddcb"`
Dec 19 14:23:20.396 INFO [stdout] 701692f07bca70e896c956131157454cc87cb9d0c60748abbbfd0ad02f93ddcb