[INFO] cloning repository https://github.com/aarish98/rust_minesweeper [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aarish98/rust_minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faarish98%2Frust_minesweeper", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faarish98%2Frust_minesweeper'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5cd34bcef4b27a672175825015cab6f0a8251313 [INFO] checking aarish98/rust_minesweeper against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faarish98%2Frust_minesweeper" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aarish98/rust_minesweeper on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aarish98/rust_minesweeper [INFO] finished tweaking git repo https://github.com/aarish98/rust_minesweeper [INFO] tweaked toml for git repo https://github.com/aarish98/rust_minesweeper written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/aarish98/rust_minesweeper already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d8a62f40a753e8af190104148cd4b88eea42edc70fbd7c386ef97b41f5abd31d [INFO] running `Command { std: "docker" "start" "-a" "d8a62f40a753e8af190104148cd4b88eea42edc70fbd7c386ef97b41f5abd31d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d8a62f40a753e8af190104148cd4b88eea42edc70fbd7c386ef97b41f5abd31d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8a62f40a753e8af190104148cd4b88eea42edc70fbd7c386ef97b41f5abd31d", kill_on_drop: false }` [INFO] [stdout] d8a62f40a753e8af190104148cd4b88eea42edc70fbd7c386ef97b41f5abd31d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6c2ef4eaaf6843f4ca579d6ac1a32cb2141bf5cc4a9a35d3ae335ce6e53770c0 [INFO] running `Command { std: "docker" "start" "-a" "6c2ef4eaaf6843f4ca579d6ac1a32cb2141bf5cc4a9a35d3ae335ce6e53770c0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.142 [INFO] [stderr] Checking getrandom v0.2.9 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rust_minesweeper v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `collections::btree_map::Range` [INFO] [stdout] --> src/main.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{io, collections::btree_map::Range}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `collections::btree_map::Range` [INFO] [stdout] --> src/main.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{io, collections::btree_map::Range}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `grid` [INFO] [stdout] --> src/main.rs:69:17 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_grid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mineSweeper` [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mineSweeper` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `grid` [INFO] [stdout] --> src/main.rs:69:17 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_grid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mineSweeper` [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mineSweeper` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width`, `height`, `open_cells`, `mines`, and `flagged_cells` are never read [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct MineSweeper { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 7 | width: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 8 | height: i32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 9 | open_cells: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 10 | mines: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 11 | flagged_cells: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mineSweeper` should have a snake case name [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `mine_sweeper` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width`, `height`, `open_cells`, `mines`, and `flagged_cells` are never read [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct MineSweeper { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 7 | width: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 8 | height: i32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 9 | open_cells: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 10 | mines: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 11 | flagged_cells: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mineSweeper` should have a snake case name [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `mine_sweeper` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.40s [INFO] running `Command { std: "docker" "inspect" "6c2ef4eaaf6843f4ca579d6ac1a32cb2141bf5cc4a9a35d3ae335ce6e53770c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c2ef4eaaf6843f4ca579d6ac1a32cb2141bf5cc4a9a35d3ae335ce6e53770c0", kill_on_drop: false }` [INFO] [stdout] 6c2ef4eaaf6843f4ca579d6ac1a32cb2141bf5cc4a9a35d3ae335ce6e53770c0 [INFO] checking aarish98/rust_minesweeper against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faarish98%2Frust_minesweeper" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aarish98/rust_minesweeper on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aarish98/rust_minesweeper [INFO] finished tweaking git repo https://github.com/aarish98/rust_minesweeper [INFO] tweaked toml for git repo https://github.com/aarish98/rust_minesweeper written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/aarish98/rust_minesweeper already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 769acab557a1a810c572fde0056860fbb950a82d3929885563ab829d6dafaba1 [INFO] running `Command { std: "docker" "start" "-a" "769acab557a1a810c572fde0056860fbb950a82d3929885563ab829d6dafaba1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "769acab557a1a810c572fde0056860fbb950a82d3929885563ab829d6dafaba1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "769acab557a1a810c572fde0056860fbb950a82d3929885563ab829d6dafaba1", kill_on_drop: false }` [INFO] [stdout] 769acab557a1a810c572fde0056860fbb950a82d3929885563ab829d6dafaba1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dc6b00f1a1167004129275b83d32be90a8bb5eed26f576a05d08079b569f2c06 [INFO] running `Command { std: "docker" "start" "-a" "dc6b00f1a1167004129275b83d32be90a8bb5eed26f576a05d08079b569f2c06", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.142 [INFO] [stderr] Checking getrandom v0.2.9 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rust_minesweeper v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `collections::btree_map::Range` [INFO] [stdout] --> src/main.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{io, collections::btree_map::Range}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `collections::btree_map::Range` [INFO] [stdout] --> src/main.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{io, collections::btree_map::Range}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/main.rs:57:5 [INFO] [stdout] | [INFO] [stdout] 57 | / match trimmed.parse::() { [INFO] [stdout] 58 | | Ok(i) => return i, [INFO] [stdout] 59 | | Err(..) => return 0, [INFO] [stdout] 60 | | }; [INFO] [stdout] | |_____^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/main.rs:57:5 [INFO] [stdout] | [INFO] [stdout] 57 | / match trimmed.parse::() { [INFO] [stdout] 58 | | Ok(i) => return i, [INFO] [stdout] 59 | | Err(..) => return 0, [INFO] [stdout] 60 | | }; [INFO] [stdout] | |_____^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `grid` [INFO] [stdout] --> src/main.rs:69:17 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_grid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mineSweeper` [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mineSweeper` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `grid` [INFO] [stdout] --> src/main.rs:69:17 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_grid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mineSweeper` [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mineSweeper` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_minesweeper` (bin "rust_minesweeper") due to 2 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `rust_minesweeper` (bin "rust_minesweeper" test) due to 2 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "dc6b00f1a1167004129275b83d32be90a8bb5eed26f576a05d08079b569f2c06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc6b00f1a1167004129275b83d32be90a8bb5eed26f576a05d08079b569f2c06", kill_on_drop: false }` [INFO] [stdout] dc6b00f1a1167004129275b83d32be90a8bb5eed26f576a05d08079b569f2c06