[INFO] updating cached repository jfoley/minesweeper [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/jfoley/minesweeper [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/jfoley/minesweeper" "work/ex/beta-1.38-1/sources/1.37.0/gh/jfoley/minesweeper"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jfoley/minesweeper'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/jfoley/minesweeper" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jfoley/minesweeper"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jfoley/minesweeper'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4facf4815518270ff20dd936b80f5f4079896e2b [INFO] sha for GitHub repo jfoley/minesweeper: 4facf4815518270ff20dd936b80f5f4079896e2b [INFO] validating manifest of jfoley/minesweeper on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of jfoley/minesweeper on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing jfoley/minesweeper [INFO] finished frobbing jfoley/minesweeper [INFO] frobbed toml for jfoley/minesweeper written to work/ex/beta-1.38-1/sources/1.37.0/gh/jfoley/minesweeper/Cargo.toml [INFO] started frobbing jfoley/minesweeper [INFO] finished frobbing jfoley/minesweeper [INFO] frobbed toml for jfoley/minesweeper written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jfoley/minesweeper/Cargo.toml [INFO] crate jfoley/minesweeper already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jfoley/minesweeper/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needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing jfoley/minesweeper against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jfoley/minesweeper:/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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 1e280f55118b527b38c8265abf2c6914ad43c61f418f6f24874907f26e665f59 [INFO] running `"docker" "start" "-a" "1e280f55118b527b38c8265abf2c6914ad43c61f418f6f24874907f26e665f59"` [INFO] [stderr] Compiling minesweeper v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 31 | for i in 0..mine_count { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:60:13 [INFO] [stderr] | [INFO] [stderr] 60 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:84:13 [INFO] [stderr] | [INFO] [stderr] 84 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:96:13 [INFO] [stderr] | [INFO] [stderr] 96 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Point` [INFO] [stderr] --> src/board.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | struct Point { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Board` [INFO] [stderr] --> src/board.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | pub struct Board { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static item is never used: `TOP_LEFT` [INFO] [stderr] --> src/board.rs:15:1 [INFO] [stderr] | [INFO] [stderr] 15 | static TOP_LEFT: &'static str = "┌"; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static item is never used: `TOP_RIGHT` [INFO] [stderr] --> src/board.rs:16:1 [INFO] [stderr] | [INFO] [stderr] 16 | static TOP_RIGHT: &'static str = "┐"; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static item is never used: `TOP` [INFO] [stderr] --> src/board.rs:17:1 [INFO] [stderr] | [INFO] [stderr] 17 | static TOP: &'static str = "─"; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static item is never used: `TOP_MID` [INFO] [stderr] --> src/board.rs:18:1 [INFO] [stderr] | [INFO] [stderr] 18 | static TOP_MID: &'static str = "┬"; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static item is never used: `MID` [INFO] [stderr] --> src/board.rs:19:1 [INFO] [stderr] | [INFO] [stderr] 19 | static MID: &'static str = "│"; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static item is never used: `BOTTOM` [INFO] [stderr] --> src/board.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | static BOTTOM: &'static str = "─"; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static item is never used: `BOTTOM_LEFT` [INFO] [stderr] --> src/board.rs:21:1 [INFO] [stderr] | [INFO] [stderr] 21 | static BOTTOM_LEFT: &'static str = "└"; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static item is never used: `BOTTOM_MID` [INFO] [stderr] --> src/board.rs:22:1 [INFO] [stderr] | [INFO] [stderr] 22 | static BOTTOM_MID: &'static str = "┴"; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static item is never used: `BOTTOM_RIGHT` [INFO] [stderr] --> src/board.rs:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | static BOTTOM_RIGHT: &'static str = "┘"; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/board.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | pub fn new(size: isize, mine_count: isize) -> Board { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print` [INFO] [stderr] --> src/board.rs:38:5 [INFO] [stderr] | [INFO] [stderr] 38 | pub fn print(&self, s: &mut String) -> () { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `size` [INFO] [stderr] --> src/board.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | pub fn size(&self) -> & isize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `mine_size` [INFO] [stderr] --> src/board.rs:52:5 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn mine_size(&self) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print_header` [INFO] [stderr] --> src/board.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | fn print_header(&self, s: &mut String) -> () { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print_row` [INFO] [stderr] --> src/board.rs:80:5 [INFO] [stderr] | [INFO] [stderr] 80 | fn print_row(&self, s: &mut String, row: isize) -> () { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print_footer` [INFO] [stderr] --> src/board.rs:93:5 [INFO] [stderr] | [INFO] [stderr] 93 | fn print_footer(&self, s: &mut String) -> () { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Io` [INFO] [stderr] --> src/ui.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | pub enum Io { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `RealUi` [INFO] [stderr] --> src/ui.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | pub struct RealUi; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/ui.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn new() -> RealUi { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `MockUi` [INFO] [stderr] --> src/ui.rs:32:1 [INFO] [stderr] | [INFO] [stderr] 32 | pub struct MockUi { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/ui.rs:38:5 [INFO] [stderr] | [INFO] [stderr] 38 | pub fn new() -> MockUi { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `expect` [INFO] [stderr] --> src/ui.rs:45:5 [INFO] [stderr] | [INFO] [stderr] 45 | pub fn expect(&mut self, expecation: Io) -> &mut Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | io::stdout().write(buf.as_bytes()); [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/ui.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | io::stdin().read_line(buf); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:20:24 [INFO] [stderr] | [INFO] [stderr] 20 | fn print_menu(ui: &mut Ui) { [INFO] [stderr] | ^^ help: use `dyn`: `dyn Ui` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:27:18 [INFO] [stderr] | [INFO] [stderr] 27 | fn menu(ui: &mut Ui) { [INFO] [stderr] | ^^ help: use `dyn`: `dyn Ui` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:41:24 [INFO] [stderr] | [INFO] [stderr] 41 | fn get_coords(ui: &mut Ui) { [INFO] [stderr] | ^^ help: use `dyn`: `dyn Ui` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 31 | for i in 0..mine_count { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:60:13 [INFO] [stderr] | [INFO] [stderr] 60 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:84:13 [INFO] [stderr] | [INFO] [stderr] 84 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:96:13 [INFO] [stderr] | [INFO] [stderr] 96 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/board.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | x: isize, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/board.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | y: isize [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `mines` [INFO] [stderr] --> src/board.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | mines: Vec [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `size` [INFO] [stderr] --> src/board.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | pub fn size(&self) -> & isize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `mine_size` [INFO] [stderr] --> src/board.rs:52:5 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn mine_size(&self) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Io` [INFO] [stderr] --> src/ui.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | pub enum Io { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `MockUi` [INFO] [stderr] --> src/ui.rs:32:1 [INFO] [stderr] | [INFO] [stderr] 32 | pub struct MockUi { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/ui.rs:38:5 [INFO] [stderr] | [INFO] [stderr] 38 | pub fn new() -> MockUi { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `expect` [INFO] [stderr] --> src/ui.rs:45:5 [INFO] [stderr] | [INFO] [stderr] 45 | pub fn expect(&mut self, expecation: Io) -> &mut Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `menu_expectation` [INFO] [stderr] --> src/main.rs:59:1 [INFO] [stderr] | [INFO] [stderr] 59 | fn menu_expectation(ui: &mut MockUi) -> () { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | io::stdout().write(buf.as_bytes()); [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/ui.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | io::stdin().read_line(buf); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.24s [INFO] running `"docker" "inspect" "1e280f55118b527b38c8265abf2c6914ad43c61f418f6f24874907f26e665f59"` [INFO] running `"docker" "rm" "-f" "1e280f55118b527b38c8265abf2c6914ad43c61f418f6f24874907f26e665f59"` [INFO] [stdout] 1e280f55118b527b38c8265abf2c6914ad43c61f418f6f24874907f26e665f59 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jfoley/minesweeper:/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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 26cb0a50226cd53919e2fd0c194c4bf18eeeeb415b207d83c6e89e33f80f097e [INFO] running `"docker" "start" "-a" "26cb0a50226cd53919e2fd0c194c4bf18eeeeb415b207d83c6e89e33f80f097e"` [INFO] [stderr] Compiling minesweeper v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:20:24 [INFO] [stderr] | [INFO] [stderr] 20 | fn print_menu(ui: &mut Ui) { [INFO] [stderr] | ^^ help: use `dyn`: `dyn Ui` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:27:18 [INFO] [stderr] | [INFO] [stderr] 27 | fn menu(ui: &mut Ui) { [INFO] [stderr] | ^^ help: use `dyn`: `dyn Ui` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:41:24 [INFO] [stderr] | [INFO] [stderr] 41 | fn get_coords(ui: &mut Ui) { [INFO] [stderr] | ^^ help: use `dyn`: `dyn Ui` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:55:26 [INFO] [stderr] | [INFO] [stderr] 55 | menu(&mut ui as &mut Ui); [INFO] [stderr] | ^^ help: use `dyn`: `dyn Ui` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:84:26 [INFO] [stderr] | [INFO] [stderr] 84 | menu(&mut ui as &mut Ui); [INFO] [stderr] | ^^ help: use `dyn`: `dyn Ui` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 31 | for i in 0..mine_count { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:60:13 [INFO] [stderr] | [INFO] [stderr] 60 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:84:13 [INFO] [stderr] | [INFO] [stderr] 84 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:96:13 [INFO] [stderr] | [INFO] [stderr] 96 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/board.rs:111:9 [INFO] [stderr] | [INFO] [stderr] 111 | let mut board = Board::new(10, 10); [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/board.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | let mut board = Board::new(1, 1); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/board.rs:137:9 [INFO] [stderr] | [INFO] [stderr] 137 | let mut board = Board::new(5, 1); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/board.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | x: isize, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/board.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | y: isize [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `RealUi` [INFO] [stderr] --> src/ui.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | pub struct RealUi; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/ui.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn new() -> RealUi { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | io::stdout().write(buf.as_bytes()); [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/ui.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | io::stdin().read_line(buf); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 31 | for i in 0..mine_count { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:60:13 [INFO] [stderr] | [INFO] [stderr] 60 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:84:13 [INFO] [stderr] | [INFO] [stderr] 84 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:96:13 [INFO] [stderr] | [INFO] [stderr] 96 | for i in 0..self.size { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/board.rs:111:9 [INFO] [stderr] | [INFO] [stderr] 111 | let mut board = Board::new(10, 10); [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/board.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | let mut board = Board::new(1, 1); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/board.rs:137:9 [INFO] [stderr] | [INFO] [stderr] 137 | let mut board = Board::new(5, 1); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/board.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | x: isize, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/board.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | y: isize [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | io::stdout().write(buf.as_bytes()); [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/ui.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | io::stdin().read_line(buf); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.99s [INFO] running `"docker" "inspect" "26cb0a50226cd53919e2fd0c194c4bf18eeeeb415b207d83c6e89e33f80f097e"` [INFO] running `"docker" "rm" "-f" "26cb0a50226cd53919e2fd0c194c4bf18eeeeb415b207d83c6e89e33f80f097e"` [INFO] [stdout] 26cb0a50226cd53919e2fd0c194c4bf18eeeeb415b207d83c6e89e33f80f097e [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jfoley/minesweeper:/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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 3b1e0106534fb1f03eb820538a48923b8e4ed21518557198d6a01144ffe2623c [INFO] running `"docker" "start" "-a" "3b1e0106534fb1f03eb820538a48923b8e4ed21518557198d6a01144ffe2623c"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/minesweeper-4b017b2aa6b26cef [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test board::print_board ... ok [INFO] [stderr] Running /opt/crater/target/debug/deps/minesweeper-1435f35f3f9ef383 [INFO] [stdout] test ui::get_input_works ... ok [INFO] [stdout] test ui::input_and_output ... ok [INFO] [stdout] test board::print_bigger_board ... ok [INFO] [stdout] test board::generate_board ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test ui::get_input_works ... ok [INFO] [stdout] test ui::input_and_output ... ok [INFO] [stdout] test it_can_flag ... ok [INFO] [stdout] test it_can_quit ... ok [INFO] [stdout] test board::print_bigger_board ... ok [INFO] [stdout] test board::print_board ... ok [INFO] [stdout] test board::generate_board ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests minesweeper [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" "3b1e0106534fb1f03eb820538a48923b8e4ed21518557198d6a01144ffe2623c"` [INFO] running `"docker" "rm" "-f" "3b1e0106534fb1f03eb820538a48923b8e4ed21518557198d6a01144ffe2623c"` [INFO] [stdout] 3b1e0106534fb1f03eb820538a48923b8e4ed21518557198d6a01144ffe2623c