[INFO] updating cached repository Thomas2511/Gomoku
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Thomas2511/Gomoku
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Thomas2511/Gomoku" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/Thomas2511/Gomoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/Thomas2511/Gomoku'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Thomas2511/Gomoku" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/Thomas2511/Gomoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/Thomas2511/Gomoku'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4d9c73b2a3b137b3d22be1a0e9d84349e2dc81a7
[INFO] sha for GitHub repo Thomas2511/Gomoku: 4d9c73b2a3b137b3d22be1a0e9d84349e2dc81a7
[INFO] validating manifest of Thomas2511/Gomoku on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Thomas2511/Gomoku on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Thomas2511/Gomoku
[INFO] finished frobbing Thomas2511/Gomoku
[INFO] frobbed toml for Thomas2511/Gomoku written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/Thomas2511/Gomoku/Cargo.toml
[INFO] started frobbing Thomas2511/Gomoku
[INFO] finished frobbing Thomas2511/Gomoku
[INFO] frobbed toml for Thomas2511/Gomoku written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/Thomas2511/Gomoku/Cargo.toml
[INFO] crate Thomas2511/Gomoku already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Thomas2511/Gomoku against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-0/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/Thomas2511/Gomoku:/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" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b67fbbe02943e4263275840294ed6872ec98d5cd76080617bbe59d3e94af1803
[INFO] running `"docker" "start" "-a" "b67fbbe02943e4263275840294ed6872ec98d5cd76080617bbe59d3e94af1803"`
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]    Compiling freetype-sys v0.4.0
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking cgmath v0.12.0
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking clap v2.19.3
[INFO] [stderr]     Checking rayon v0.6.0
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking glium_text v0.11.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.11
[INFO] [stderr]     Checking image v0.12.1
[INFO] [stderr]     Checking gomoku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/board/board.rs:44:18
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fun: Box<Fn(usize) -> (usize, usize)>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> (usize, usize)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:215:38
[INFO] [stderr]     |
[INFO] [stderr] 215 |                 if !(0..19).contains(x) || !(0..19).contains(y) {
[INFO] [stderr]     |                                      ^
[INFO] [stderr]     |                                      |
[INFO] [stderr]     |                                      expected reference, found usize
[INFO] [stderr]     |                                      help: consider borrowing here: `&x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `usize`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:215:62
[INFO] [stderr]     |
[INFO] [stderr] 215 |                 if !(0..19).contains(x) || !(0..19).contains(y) {
[INFO] [stderr]     |                                                              ^
[INFO] [stderr]     |                                                              |
[INFO] [stderr]     |                                                              expected reference, found usize
[INFO] [stderr]     |                                                              help: consider borrowing here: `&y`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `usize`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:280:29
[INFO] [stderr]     |
[INFO] [stderr] 280 |         if (0..19).contains(x + 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:284:29
[INFO] [stderr]     |
[INFO] [stderr] 284 |         if (0..19).contains(x + 1) && (0..19).contains(y + 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:284:56
[INFO] [stderr]     |
[INFO] [stderr] 284 |         if (0..19).contains(x + 1) && (0..19).contains(y + 1)
[INFO] [stderr]     |                                                        ^^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        expected reference, found i32
[INFO] [stderr]     |                                                        help: consider borrowing here: `&(y + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:288:29
[INFO] [stderr]     |
[INFO] [stderr] 288 |         if (0..19).contains(y + 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(y + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:292:29
[INFO] [stderr]     |
[INFO] [stderr] 292 |         if (0..19).contains(x - 1) && (0..19).contains(y + 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:292:56
[INFO] [stderr]     |
[INFO] [stderr] 292 |         if (0..19).contains(x - 1) && (0..19).contains(y + 1)
[INFO] [stderr]     |                                                        ^^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        expected reference, found i32
[INFO] [stderr]     |                                                        help: consider borrowing here: `&(y + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:296:29
[INFO] [stderr]     |
[INFO] [stderr] 296 |         if (0..19).contains(x - 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:300:29
[INFO] [stderr]     |
[INFO] [stderr] 300 |         if (0..19).contains(x - 1) && (0..19).contains(y - 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:300:56
[INFO] [stderr]     |
[INFO] [stderr] 300 |         if (0..19).contains(x - 1) && (0..19).contains(y - 1)
[INFO] [stderr]     |                                                        ^^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        expected reference, found i32
[INFO] [stderr]     |                                                        help: consider borrowing here: `&(y - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:304:29
[INFO] [stderr]     |
[INFO] [stderr] 304 |         if (0..19).contains(y - 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(y - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:308:29
[INFO] [stderr]     |
[INFO] [stderr] 308 |         if (0..19).contains(x + 1) && (0..19).contains(y - 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:308:56
[INFO] [stderr]     |
[INFO] [stderr] 308 |         if (0..19).contains(x + 1) && (0..19).contains(y - 1)
[INFO] [stderr]     |                                                        ^^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        expected reference, found i32
[INFO] [stderr]     |                                                        help: consider borrowing here: `&(y - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `gomoku`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/board/board.rs:44:18
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fun: Box<Fn(usize) -> (usize, usize)>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> (usize, usize)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:215:38
[INFO] [stderr]     |
[INFO] [stderr] 215 |                 if !(0..19).contains(x) || !(0..19).contains(y) {
[INFO] [stderr]     |                                      ^
[INFO] [stderr]     |                                      |
[INFO] [stderr]     |                                      expected reference, found usize
[INFO] [stderr]     |                                      help: consider borrowing here: `&x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `usize`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:215:62
[INFO] [stderr]     |
[INFO] [stderr] 215 |                 if !(0..19).contains(x) || !(0..19).contains(y) {
[INFO] [stderr]     |                                                              ^
[INFO] [stderr]     |                                                              |
[INFO] [stderr]     |                                                              expected reference, found usize
[INFO] [stderr]     |                                                              help: consider borrowing here: `&y`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `usize`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:280:29
[INFO] [stderr]     |
[INFO] [stderr] 280 |         if (0..19).contains(x + 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:284:29
[INFO] [stderr]     |
[INFO] [stderr] 284 |         if (0..19).contains(x + 1) && (0..19).contains(y + 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:284:56
[INFO] [stderr]     |
[INFO] [stderr] 284 |         if (0..19).contains(x + 1) && (0..19).contains(y + 1)
[INFO] [stderr]     |                                                        ^^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        expected reference, found i32
[INFO] [stderr]     |                                                        help: consider borrowing here: `&(y + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:288:29
[INFO] [stderr]     |
[INFO] [stderr] 288 |         if (0..19).contains(y + 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(y + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:292:29
[INFO] [stderr]     |
[INFO] [stderr] 292 |         if (0..19).contains(x - 1) && (0..19).contains(y + 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:292:56
[INFO] [stderr]     |
[INFO] [stderr] 292 |         if (0..19).contains(x - 1) && (0..19).contains(y + 1)
[INFO] [stderr]     |                                                        ^^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        expected reference, found i32
[INFO] [stderr]     |                                                        help: consider borrowing here: `&(y + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:296:29
[INFO] [stderr]     |
[INFO] [stderr] 296 |         if (0..19).contains(x - 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:300:29
[INFO] [stderr]     |
[INFO] [stderr] 300 |         if (0..19).contains(x - 1) && (0..19).contains(y - 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:300:56
[INFO] [stderr]     |
[INFO] [stderr] 300 |         if (0..19).contains(x - 1) && (0..19).contains(y - 1)
[INFO] [stderr]     |                                                        ^^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        expected reference, found i32
[INFO] [stderr]     |                                                        help: consider borrowing here: `&(y - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:304:29
[INFO] [stderr]     |
[INFO] [stderr] 304 |         if (0..19).contains(y - 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(y - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:308:29
[INFO] [stderr]     |
[INFO] [stderr] 308 |         if (0..19).contains(x + 1) && (0..19).contains(y - 1)
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             expected reference, found i32
[INFO] [stderr]     |                             help: consider borrowing here: `&(x + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/board/board.rs:308:56
[INFO] [stderr]     |
[INFO] [stderr] 308 |         if (0..19).contains(x + 1) && (0..19).contains(y - 1)
[INFO] [stderr]     |                                                        ^^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        expected reference, found i32
[INFO] [stderr]     |                                                        help: consider borrowing here: `&(y - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&_`
[INFO] [stderr]                found type `i32`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `gomoku`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b67fbbe02943e4263275840294ed6872ec98d5cd76080617bbe59d3e94af1803"`
[INFO] running `"docker" "rm" "-f" "b67fbbe02943e4263275840294ed6872ec98d5cd76080617bbe59d3e94af1803"`
[INFO] [stdout] b67fbbe02943e4263275840294ed6872ec98d5cd76080617bbe59d3e94af1803