[INFO] cloning repository https://github.com/NickChubb/ReversiMCTS [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NickChubb/ReversiMCTS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickChubb%2FReversiMCTS", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickChubb%2FReversiMCTS'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b5b97f02148b27f86abe29ef2208ba68e003234e [INFO] checking NickChubb/ReversiMCTS against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickChubb%2FReversiMCTS" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NickChubb/ReversiMCTS 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/NickChubb/ReversiMCTS [INFO] finished tweaking git repo https://github.com/NickChubb/ReversiMCTS [INFO] tweaked toml for git repo https://github.com/NickChubb/ReversiMCTS written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/NickChubb/ReversiMCTS 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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded hashbrown v0.8.1 [INFO] [stderr] Downloaded libmath v0.2.1 [INFO] [stderr] Downloaded indexmap v1.5.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b1a5ce94412292a8eafe9018329800d4025fd009ecdc8216fd4513ad3ca63082 [INFO] running `Command { std: "docker" "start" "-a" "b1a5ce94412292a8eafe9018329800d4025fd009ecdc8216fd4513ad3ca63082", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b1a5ce94412292a8eafe9018329800d4025fd009ecdc8216fd4513ad3ca63082", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b1a5ce94412292a8eafe9018329800d4025fd009ecdc8216fd4513ad3ca63082", kill_on_drop: false }` [INFO] [stdout] b1a5ce94412292a8eafe9018329800d4025fd009ecdc8216fd4513ad3ca63082 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7801da963b9ff3c420c7f0101bf8243c02031c3f6cf0be2dcf4ccc74794e3103 [INFO] running `Command { std: "docker" "start" "-a" "7801da963b9ff3c420c7f0101bf8243c02031c3f6cf0be2dcf4ccc74794e3103", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling hashbrown v0.8.1 [INFO] [stderr] Compiling indexmap v1.5.0 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking libmath v0.2.1 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking reversi v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `debug` [INFO] [stdout] --> src/main.rs:128:21 [INFO] [stdout] | [INFO] [stdout] 128 | fn print(&self, debug: bool) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_debug` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:181:17 [INFO] [stdout] | [INFO] [stdout] 181 | let mut u: u8 = 1; [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: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:320:17 [INFO] [stdout] | [INFO] [stdout] 320 | let mut u: u8 = 1; // used as the iter for get_new_pos() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prev_player_score` [INFO] [stdout] --> src/main.rs:841:10 [INFO] [stdout] | [INFO] [stdout] 841 | let (prev_player_score, prev_cpu_score): (u8, u8) = b.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `player_score` [INFO] [stdout] --> src/main.rs:857:14 [INFO] [stdout] | [INFO] [stdout] 857 | let (player_score, cpu_score): (u8, u8) = new_board.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `difficulty` [INFO] [stdout] --> src/main.rs:886:13 [INFO] [stdout] | [INFO] [stdout] 886 | let difficulty: String = match cpu_diff.trim().to_string().as_str() { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `debug` [INFO] [stdout] --> src/main.rs:128:21 [INFO] [stdout] | [INFO] [stdout] 128 | fn print(&self, debug: bool) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_debug` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:715:34 [INFO] [stdout] | [INFO] [stdout] 715 | if !debug { print!("."); stdout().flush(); } [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] 715 | if !debug { print!("."); let _ = stdout().flush(); } [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:181:17 [INFO] [stdout] | [INFO] [stdout] 181 | let mut u: u8 = 1; [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: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:320:17 [INFO] [stdout] | [INFO] [stdout] 320 | let mut u: u8 = 1; // used as the iter for get_new_pos() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prev_player_score` [INFO] [stdout] --> src/main.rs:841:10 [INFO] [stdout] | [INFO] [stdout] 841 | let (prev_player_score, prev_cpu_score): (u8, u8) = b.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `player_score` [INFO] [stdout] --> src/main.rs:857:14 [INFO] [stdout] | [INFO] [stdout] 857 | let (player_score, cpu_score): (u8, u8) = new_board.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `difficulty` [INFO] [stdout] --> src/main.rs:886:13 [INFO] [stdout] | [INFO] [stdout] 886 | let difficulty: String = match cpu_diff.trim().to_string().as_str() { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:715:34 [INFO] [stdout] | [INFO] [stdout] 715 | if !debug { print!("."); stdout().flush(); } [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] 715 | if !debug { print!("."); let _ = stdout().flush(); } [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.01s [INFO] running `Command { std: "docker" "inspect" "7801da963b9ff3c420c7f0101bf8243c02031c3f6cf0be2dcf4ccc74794e3103", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7801da963b9ff3c420c7f0101bf8243c02031c3f6cf0be2dcf4ccc74794e3103", kill_on_drop: false }` [INFO] [stdout] 7801da963b9ff3c420c7f0101bf8243c02031c3f6cf0be2dcf4ccc74794e3103 [INFO] checking NickChubb/ReversiMCTS against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickChubb%2FReversiMCTS" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NickChubb/ReversiMCTS on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/NickChubb/ReversiMCTS [INFO] finished tweaking git repo https://github.com/NickChubb/ReversiMCTS [INFO] tweaked toml for git repo https://github.com/NickChubb/ReversiMCTS written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/NickChubb/ReversiMCTS 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 86d69673450e2c64859c93d6acefc5a4e9a43ecd4c24d1dfb0c4d6b9d8281b0e [INFO] running `Command { std: "docker" "start" "-a" "86d69673450e2c64859c93d6acefc5a4e9a43ecd4c24d1dfb0c4d6b9d8281b0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "86d69673450e2c64859c93d6acefc5a4e9a43ecd4c24d1dfb0c4d6b9d8281b0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "86d69673450e2c64859c93d6acefc5a4e9a43ecd4c24d1dfb0c4d6b9d8281b0e", kill_on_drop: false }` [INFO] [stdout] 86d69673450e2c64859c93d6acefc5a4e9a43ecd4c24d1dfb0c4d6b9d8281b0e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 72c8ea787d2a919ddca07400c3023b7cd74d3660f0362404c6a27fc094667bf8 [INFO] running `Command { std: "docker" "start" "-a" "72c8ea787d2a919ddca07400c3023b7cd74d3660f0362404c6a27fc094667bf8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling hashbrown v0.8.1 [INFO] [stderr] Compiling indexmap v1.5.0 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking libmath v0.2.1 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking reversi v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `debug` [INFO] [stdout] --> src/main.rs:128:21 [INFO] [stdout] | [INFO] [stdout] 128 | fn print(&self, debug: bool) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_debug` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `debug` [INFO] [stdout] --> src/main.rs:128:21 [INFO] [stdout] | [INFO] [stdout] 128 | fn print(&self, debug: bool) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_debug` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:181:17 [INFO] [stdout] | [INFO] [stdout] 181 | let mut u: u8 = 1; [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: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:320:17 [INFO] [stdout] | [INFO] [stdout] 320 | let mut u: u8 = 1; // used as the iter for get_new_pos() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prev_player_score` [INFO] [stdout] --> src/main.rs:841:10 [INFO] [stdout] | [INFO] [stdout] 841 | let (prev_player_score, prev_cpu_score): (u8, u8) = b.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `player_score` [INFO] [stdout] --> src/main.rs:857:14 [INFO] [stdout] | [INFO] [stdout] 857 | let (player_score, cpu_score): (u8, u8) = new_board.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `difficulty` [INFO] [stdout] --> src/main.rs:886:13 [INFO] [stdout] | [INFO] [stdout] 886 | let difficulty: String = match cpu_diff.trim().to_string().as_str() { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:715:34 [INFO] [stdout] | [INFO] [stdout] 715 | if !debug { print!("."); stdout().flush(); } [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] 715 | if !debug { print!("."); let _ = stdout().flush(); } [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:181:17 [INFO] [stdout] | [INFO] [stdout] 181 | let mut u: u8 = 1; [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: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:320:17 [INFO] [stdout] | [INFO] [stdout] 320 | let mut u: u8 = 1; // used as the iter for get_new_pos() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prev_player_score` [INFO] [stdout] --> src/main.rs:841:10 [INFO] [stdout] | [INFO] [stdout] 841 | let (prev_player_score, prev_cpu_score): (u8, u8) = b.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `player_score` [INFO] [stdout] --> src/main.rs:857:14 [INFO] [stdout] | [INFO] [stdout] 857 | let (player_score, cpu_score): (u8, u8) = new_board.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `difficulty` [INFO] [stdout] --> src/main.rs:886:13 [INFO] [stdout] | [INFO] [stdout] 886 | let difficulty: String = match cpu_diff.trim().to_string().as_str() { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:715:34 [INFO] [stdout] | [INFO] [stdout] 715 | if !debug { print!("."); stdout().flush(); } [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] 715 | if !debug { print!("."); let _ = stdout().flush(); } [INFO] [stdout] | +++++++ [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 5.38s [INFO] running `Command { std: "docker" "inspect" "72c8ea787d2a919ddca07400c3023b7cd74d3660f0362404c6a27fc094667bf8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72c8ea787d2a919ddca07400c3023b7cd74d3660f0362404c6a27fc094667bf8", kill_on_drop: false }` [INFO] [stdout] 72c8ea787d2a919ddca07400c3023b7cd74d3660f0362404c6a27fc094667bf8