[INFO] cloning repository https://github.com/Chiminakust/mines-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Chiminakust/mines-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChiminakust%2Fmines-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChiminakust%2Fmines-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0a8cc462ae5895e9a22335988c361164dd0f4d24 [INFO] checking Chiminakust/mines-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChiminakust%2Fmines-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Chiminakust/mines-rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Chiminakust/mines-rs [INFO] finished tweaking git repo https://github.com/Chiminakust/mines-rs [INFO] tweaked toml for git repo https://github.com/Chiminakust/mines-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Chiminakust/mines-rs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded argparse v0.2.2 [INFO] [stderr] Downloaded sdl2 v0.35.2 [INFO] [stderr] Downloaded version-compare v0.1.1 [INFO] [stderr] Downloaded sdl2-sys v0.35.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0d36fbb14fbf44bcad616796b84d2b292db0aebf26b7a3a02ce52f0a7af5e961 [INFO] running `Command { std: "docker" "start" "-a" "0d36fbb14fbf44bcad616796b84d2b292db0aebf26b7a3a02ce52f0a7af5e961", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0d36fbb14fbf44bcad616796b84d2b292db0aebf26b7a3a02ce52f0a7af5e961", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d36fbb14fbf44bcad616796b84d2b292db0aebf26b7a3a02ce52f0a7af5e961", kill_on_drop: false }` [INFO] [stdout] 0d36fbb14fbf44bcad616796b84d2b292db0aebf26b7a3a02ce52f0a7af5e961 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89fb5c4f6d86a3874ddfbc289dff5783cb24a6add945f5b6c96d60a204e7b236 [INFO] running `Command { std: "docker" "start" "-a" "89fb5c4f6d86a3874ddfbc289dff5783cb24a6add945f5b6c96d60a204e7b236", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling version-compare v0.1.1 [INFO] [stderr] Compiling sdl2 v0.35.2 [INFO] [stderr] Checking argparse v0.2.2 [INFO] [stderr] Compiling sdl2-sys v0.35.2 [INFO] [stderr] Checking getrandom v0.2.8 [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 mines v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:132:13 [INFO] [stdout] | [INFO] [stdout] 132 | let mut tiles = vec![ [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/lib.rs:132:13 [INFO] [stdout] | [INFO] [stdout] 132 | let mut tiles = vec![ [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: unreachable pattern [INFO] [stdout] --> src/lib.rs:264:13 [INFO] [stdout] | [INFO] [stdout] 264 | _ => {} [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_flag` is never read [INFO] [stdout] --> src/lib.rs:297:17 [INFO] [stdout] | [INFO] [stdout] 297 | let mut new_flag: Option = None; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flag` [INFO] [stdout] --> src/lib.rs:372:25 [INFO] [stdout] | [INFO] [stdout] 372 | if let Some(flag) = self.tiles[*x][*y].flag.clone() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_flag` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/lib.rs:264:13 [INFO] [stdout] | [INFO] [stdout] 264 | _ => {} [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_flag` is never read [INFO] [stdout] --> src/lib.rs:297:17 [INFO] [stdout] | [INFO] [stdout] 297 | let mut new_flag: Option = None; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flag` [INFO] [stdout] --> src/lib.rs:372:25 [INFO] [stdout] | [INFO] [stdout] 372 | if let Some(flag) = self.tiles[*x][*y].flag.clone() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_flag` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hide_tile` is never used [INFO] [stdout] --> src/lib.rs:270:12 [INFO] [stdout] | [INFO] [stdout] 130 | impl Minefield { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 270 | pub fn hide_tile(&mut self, tile_number: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:103:9 [INFO] [stdout] | [INFO] [stdout] 103 | minefield_renderer.draw_tiles(&mut canvas, &minefield); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 103 | let _ = minefield_renderer.draw_tiles(&mut canvas, &minefield); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hide_tile` is never used [INFO] [stdout] --> src/lib.rs:270:12 [INFO] [stdout] | [INFO] [stdout] 130 | impl Minefield { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 270 | pub fn hide_tile(&mut self, tile_number: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:103:9 [INFO] [stdout] | [INFO] [stdout] 103 | minefield_renderer.draw_tiles(&mut canvas, &minefield); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 103 | let _ = minefield_renderer.draw_tiles(&mut canvas, &minefield); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.78s [INFO] running `Command { std: "docker" "inspect" "89fb5c4f6d86a3874ddfbc289dff5783cb24a6add945f5b6c96d60a204e7b236", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89fb5c4f6d86a3874ddfbc289dff5783cb24a6add945f5b6c96d60a204e7b236", kill_on_drop: false }` [INFO] [stdout] 89fb5c4f6d86a3874ddfbc289dff5783cb24a6add945f5b6c96d60a204e7b236 [INFO] checking Chiminakust/mines-rs against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChiminakust%2Fmines-rs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Chiminakust/mines-rs on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Chiminakust/mines-rs [INFO] finished tweaking git repo https://github.com/Chiminakust/mines-rs [INFO] tweaked toml for git repo https://github.com/Chiminakust/mines-rs written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Chiminakust/mines-rs 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fb510480239c0c7079ea5402185d09f222e3ccf466433097aa37d1b640bf8e9c [INFO] running `Command { std: "docker" "start" "-a" "fb510480239c0c7079ea5402185d09f222e3ccf466433097aa37d1b640bf8e9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fb510480239c0c7079ea5402185d09f222e3ccf466433097aa37d1b640bf8e9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb510480239c0c7079ea5402185d09f222e3ccf466433097aa37d1b640bf8e9c", kill_on_drop: false }` [INFO] [stdout] fb510480239c0c7079ea5402185d09f222e3ccf466433097aa37d1b640bf8e9c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1044e8c213555e9f22c172f3d4184bdd7b5950fdbcff4dc6239ca3ff75d502b5 [INFO] running `Command { std: "docker" "start" "-a" "1044e8c213555e9f22c172f3d4184bdd7b5950fdbcff4dc6239ca3ff75d502b5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling version-compare v0.1.1 [INFO] [stderr] Compiling sdl2 v0.35.2 [INFO] [stderr] Checking argparse v0.2.2 [INFO] [stderr] Compiling sdl2-sys v0.35.2 [INFO] [stderr] Checking getrandom v0.2.8 [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 mines v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:132:13 [INFO] [stdout] | [INFO] [stdout] 132 | let mut tiles = vec![ [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: unreachable pattern [INFO] [stdout] --> src/lib.rs:264:13 [INFO] [stdout] | [INFO] [stdout] 264 | _ => {} [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_flag` is never read [INFO] [stdout] --> src/lib.rs:297:17 [INFO] [stdout] | [INFO] [stdout] 297 | let mut new_flag: Option = None; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flag` [INFO] [stdout] --> src/lib.rs:372:25 [INFO] [stdout] | [INFO] [stdout] 372 | if let Some(flag) = self.tiles[*x][*y].flag.clone() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_flag` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hide_tile` is never used [INFO] [stdout] --> src/lib.rs:270:12 [INFO] [stdout] | [INFO] [stdout] 130 | impl Minefield { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 270 | pub fn hide_tile(&mut self, tile_number: usize) { [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/lib.rs:132:13 [INFO] [stdout] | [INFO] [stdout] 132 | let mut tiles = vec![ [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: unreachable pattern [INFO] [stdout] --> src/lib.rs:264:13 [INFO] [stdout] | [INFO] [stdout] 264 | _ => {} [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:103:9 [INFO] [stdout] | [INFO] [stdout] 103 | minefield_renderer.draw_tiles(&mut canvas, &minefield); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 103 | let _ = minefield_renderer.draw_tiles(&mut canvas, &minefield); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_flag` is never read [INFO] [stdout] --> src/lib.rs:297:17 [INFO] [stdout] | [INFO] [stdout] 297 | let mut new_flag: Option = None; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flag` [INFO] [stdout] --> src/lib.rs:372:25 [INFO] [stdout] | [INFO] [stdout] 372 | if let Some(flag) = self.tiles[*x][*y].flag.clone() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_flag` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hide_tile` is never used [INFO] [stdout] --> src/lib.rs:270:12 [INFO] [stdout] | [INFO] [stdout] 130 | impl Minefield { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 270 | pub fn hide_tile(&mut self, tile_number: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:103:9 [INFO] [stdout] | [INFO] [stdout] 103 | minefield_renderer.draw_tiles(&mut canvas, &minefield); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 103 | let _ = minefield_renderer.draw_tiles(&mut canvas, &minefield); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.29s [INFO] running `Command { std: "docker" "inspect" "1044e8c213555e9f22c172f3d4184bdd7b5950fdbcff4dc6239ca3ff75d502b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1044e8c213555e9f22c172f3d4184bdd7b5950fdbcff4dc6239ca3ff75d502b5", kill_on_drop: false }` [INFO] [stdout] 1044e8c213555e9f22c172f3d4184bdd7b5950fdbcff4dc6239ca3ff75d502b5