[INFO] updating cached repository aishsingh/nine-mens-morris [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/aishsingh/nine-mens-morris [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/aishsingh/nine-mens-morris" "work/ex/beta-1.37-6/sources/1.36.0/gh/aishsingh/nine-mens-morris"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/aishsingh/nine-mens-morris'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/aishsingh/nine-mens-morris" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aishsingh/nine-mens-morris"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aishsingh/nine-mens-morris'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 057e60876ac6d8a707f59aa69650745c7a1ebc5c [INFO] sha for GitHub repo aishsingh/nine-mens-morris: 057e60876ac6d8a707f59aa69650745c7a1ebc5c [INFO] validating manifest of aishsingh/nine-mens-morris on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of aishsingh/nine-mens-morris on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing aishsingh/nine-mens-morris [INFO] finished frobbing aishsingh/nine-mens-morris [INFO] frobbed toml for aishsingh/nine-mens-morris written to work/ex/beta-1.37-6/sources/1.36.0/gh/aishsingh/nine-mens-morris/Cargo.toml [INFO] started frobbing aishsingh/nine-mens-morris [INFO] finished frobbing aishsingh/nine-mens-morris [INFO] frobbed toml for aishsingh/nine-mens-morris written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aishsingh/nine-mens-morris/Cargo.toml [INFO] crate aishsingh/nine-mens-morris already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/aishsingh/nine-mens-morris/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing aishsingh/nine-mens-morris against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aishsingh/nine-mens-morris:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] ef70e7b3907c03634de1be7d1477d68e2f48f94fae9cedbe9950353c124f4448 [INFO] running `"docker" "start" "-a" "ef70e7b3907c03634de1be7d1477d68e2f48f94fae9cedbe9950353c124f4448"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling sdl2-sys v0.19.0 [INFO] [stderr] Compiling sdl2 v0.19.0 [INFO] [stderr] Compiling sdl2_ttf v0.19.0 [INFO] [stderr] Compiling nine-mens-morris v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `sdl2::pixels::Color` [INFO] [stderr] --> src/piece.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use sdl2::pixels::Color; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant `placed` should have an upper camel case name [INFO] [stderr] --> src/piece.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | placed { p: Piece }, [INFO] [stderr] | ^^^^^^ help: convert the identifier to upper camel case: `Placed` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_camel_case_types)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant `empty` should have an upper camel case name [INFO] [stderr] --> src/piece.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | empty [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `Empty` [INFO] [stderr] [INFO] [stderr] warning: variant `completed` should have an upper camel case name [INFO] [stderr] --> src/action.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | completed, [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to upper camel case: `Completed` [INFO] [stderr] [INFO] [stderr] warning: variant `stopped` should have an upper camel case name [INFO] [stderr] --> src/action.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | stopped, [INFO] [stderr] | ^^^^^^^ help: convert the identifier to upper camel case: `Stopped` [INFO] [stderr] [INFO] [stderr] warning: variant `mill_detected` should have an upper camel case name [INFO] [stderr] --> src/action.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | mill_detected [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MillDetected` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:73:40 [INFO] [stderr] | [INFO] [stderr] 73 | Event::MouseButtonDown{x, y, ..} => { [INFO] [stderr] | ^ help: try ignoring the field: `x: _` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:73:43 [INFO] [stderr] | [INFO] [stderr] 73 | Event::MouseButtonDown{x, y, ..} => { [INFO] [stderr] | ^ help: try ignoring the field: `y: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:77:36 [INFO] [stderr] | [INFO] [stderr] 77 | Event::MouseMotion{x, y, ..} => { [INFO] [stderr] | ^ help: try ignoring the field: `x: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:77:39 [INFO] [stderr] | [INFO] [stderr] 77 | Event::MouseMotion{x, y, ..} => { [INFO] [stderr] | ^ help: try ignoring the field: `y: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/action.rs:50:26 [INFO] [stderr] | [INFO] [stderr] 50 | fn move_piece(&self, p: &piece::Piece) -> ActionResult { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/action.rs:55:26 [INFO] [stderr] | [INFO] [stderr] 55 | fn jump_piece(&self, p: &piece::Piece) -> ActionResult { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:231:9 [INFO] [stderr] | [INFO] [stderr] 231 | let mut renderer = window.renderer().build().unwrap(); [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:234:9 [INFO] [stderr] | [INFO] [stderr] 234 | let mut font = ttf_context.load_font(Path::new("font/Arvo-Regular.ttf"), 24).unwrap(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `remove_piece` [INFO] [stderr] --> src/player.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | pub fn remove_piece(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:145:17 [INFO] [stderr] | [INFO] [stderr] 145 | self.sdl_renderer.fill_rect(Rect::new(board[i][j][0], board[i][j][1], 5, 5)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:150:9 [INFO] [stderr] | [INFO] [stderr] 150 | self.sdl_renderer.draw_line(Point::new(2+board[0][3][0], 2+board[0][3][1]), Point::new(2+board[2][3][0], 2+board[2][3][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:151:9 [INFO] [stderr] | [INFO] [stderr] 151 | self.sdl_renderer.draw_line(Point::new(2+board[4][3][0], 2+board[4][3][1]), Point::new(2+board[6][3][0], 2+board[6][3][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 152 | self.sdl_renderer.draw_line(Point::new(2+board[3][0][0], 2+board[3][0][1]), Point::new(2+board[3][2][0], 2+board[3][2][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:153:9 [INFO] [stderr] | [INFO] [stderr] 153 | self.sdl_renderer.draw_line(Point::new(2+board[3][4][0], 2+board[3][4][1]), Point::new(2+board[3][6][0], 2+board[3][6][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:156:9 [INFO] [stderr] | [INFO] [stderr] 156 | self.sdl_renderer.draw_line(Point::new(2+board[0][0][0], 2+board[0][0][1]), Point::new(2+board[0][6][0], 2+board[0][6][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:157:9 [INFO] [stderr] | [INFO] [stderr] 157 | self.sdl_renderer.draw_line(Point::new(2+board[6][0][0], 2+board[6][0][1]), Point::new(2+board[6][6][0], 2+board[6][6][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:158:9 [INFO] [stderr] | [INFO] [stderr] 158 | self.sdl_renderer.draw_line(Point::new(2+board[0][0][0], 2+board[0][0][1]), Point::new(2+board[6][0][0], 2+board[6][0][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:159:9 [INFO] [stderr] | [INFO] [stderr] 159 | self.sdl_renderer.draw_line(Point::new(2+board[0][6][0], 2+board[0][6][1]), Point::new(2+board[6][6][0], 2+board[6][6][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:162:9 [INFO] [stderr] | [INFO] [stderr] 162 | self.sdl_renderer.draw_line(Point::new(2+board[1][1][0], 2+board[1][1][1]), Point::new(2+board[1][5][0], 2+board[1][5][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:163:9 [INFO] [stderr] | [INFO] [stderr] 163 | self.sdl_renderer.draw_line(Point::new(2+board[5][1][0], 2+board[5][1][1]), Point::new(2+board[5][5][0], 2+board[5][5][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:164:9 [INFO] [stderr] | [INFO] [stderr] 164 | self.sdl_renderer.draw_line(Point::new(2+board[1][1][0], 2+board[1][1][1]), Point::new(2+board[5][1][0], 2+board[5][1][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:165:9 [INFO] [stderr] | [INFO] [stderr] 165 | self.sdl_renderer.draw_line(Point::new(2+board[1][5][0], 2+board[1][5][1]), Point::new(2+board[5][5][0], 2+board[5][5][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:168:9 [INFO] [stderr] | [INFO] [stderr] 168 | self.sdl_renderer.draw_line(Point::new(2+board[2][2][0], 2+board[2][2][1]), Point::new(2+board[2][4][0], 2+board[2][4][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:169:9 [INFO] [stderr] | [INFO] [stderr] 169 | self.sdl_renderer.draw_line(Point::new(2+board[4][2][0], 2+board[4][2][1]), Point::new(2+board[4][4][0], 2+board[4][4][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:170:9 [INFO] [stderr] | [INFO] [stderr] 170 | self.sdl_renderer.draw_line(Point::new(2+board[2][2][0], 2+board[2][2][1]), Point::new(2+board[4][2][0], 2+board[4][2][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:171:9 [INFO] [stderr] | [INFO] [stderr] 171 | self.sdl_renderer.draw_line(Point::new(2+board[2][4][0], 2+board[2][4][1]), Point::new(2+board[4][4][0], 2+board[4][4][1])); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/piece.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | renderer.fill_rect(Rect::new(self.x - (30/2), self.y - (30/2), 30, 30)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] error: linking with `cc` failed: exit code: 1 [INFO] [stderr] | [INFO] [stderr] = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nine_mens_morris.5trpzeg4-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28" "/opt/crater/target/debug/deps/nine_mens_morris-9040ea3f9a95aa28.nb2zkt2d9vr8esv.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libsdl2_ttf-b5c26d17c41efee8.rlib" "/opt/crater/target/debug/deps/libbitflags-02eac7b11f4d7bd5.rlib" "/opt/crater/target/debug/deps/libsdl2-1b757c0dfe3748fe.rlib" "/opt/crater/target/debug/deps/librand-e08ba8aab010d886.rlib" "/opt/crater/target/debug/deps/libsdl2_sys-2c670080bafe5629.rlib" "/opt/crater/target/debug/deps/libbitflags-1006552bb95b6140.rlib" "/opt/crater/target/debug/deps/liblazy_static-0e1e36676eed3924.rlib" "/opt/crater/target/debug/deps/libnum-56232bbc3481d7e4.rlib" "/opt/crater/target/debug/deps/libnum_rational-4b67caa4c49810a7.rlib" "/opt/crater/target/debug/deps/libnum_bigint-1fd4b19cd24ff983.rlib" "/opt/crater/target/debug/deps/librand-12c0152561214ea4.rlib" "/opt/crater/target/debug/deps/liblibc-15b143653abd1ffe.rlib" "/opt/crater/target/debug/deps/libnum_complex-2c45d74b57ccfed4.rlib" "/opt/crater/target/debug/deps/librustc_serialize-349ba31664dfb847.rlib" "/opt/crater/target/debug/deps/libnum_iter-6aa8c2e263944e3d.rlib" "/opt/crater/target/debug/deps/libnum_integer-35be16e7600d6cb9.rlib" "/opt/crater/target/debug/deps/libnum_traits-04277105b9bd2221.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a80a1e8e09cafef8.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e0e6351da805c468.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e04f54bafc95e331.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-67901d3322495bd5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-bd390b1abaceaec1.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-312dd37fdc7bedfc.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8ed0e51d58d644a3.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-8a423c320a6c707f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d6a95598e2238263.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d231614b153016eb.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3821619027f463e4.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-1cfd794d18771a44.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-dcf33cf10c2452ef.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-c258fea34bf64bce.rlib" "-Wl,-Bdynamic" "-lSDL2_ttf" "-lSDL2" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /usr/bin/ld: cannot find -lSDL2_ttf [INFO] [stderr] collect2: error: ld returned 1 exit status [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] error: Could not compile `nine-mens-morris`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "ef70e7b3907c03634de1be7d1477d68e2f48f94fae9cedbe9950353c124f4448"` [INFO] running `"docker" "rm" "-f" "ef70e7b3907c03634de1be7d1477d68e2f48f94fae9cedbe9950353c124f4448"` [INFO] [stdout] ef70e7b3907c03634de1be7d1477d68e2f48f94fae9cedbe9950353c124f4448