[INFO] cloning repository https://github.com/scarvalhojr/adventofcode2019 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scarvalhojr/adventofcode2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscarvalhojr%2Fadventofcode2019", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscarvalhojr%2Fadventofcode2019'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a7f02f3f77c5193c508a5431381c0748f805d368 [INFO] checking scarvalhojr/adventofcode2019 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscarvalhojr%2Fadventofcode2019" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/scarvalhojr/adventofcode2019 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/scarvalhojr/adventofcode2019 [INFO] finished tweaking git repo https://github.com/scarvalhojr/adventofcode2019 [INFO] tweaked toml for git repo https://github.com/scarvalhojr/adventofcode2019 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/scarvalhojr/adventofcode2019 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded num-traits v0.2.10 [INFO] [stderr] Downloaded itertools v0.8.2 [INFO] [stderr] Downloaded libc v0.2.66 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 63143efc1423cf1a757e3be4f962c5623756ab2a4bb604450cd833ee6d10ad2d [INFO] running `Command { std: "docker" "start" "-a" "63143efc1423cf1a757e3be4f962c5623756ab2a4bb604450cd833ee6d10ad2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "63143efc1423cf1a757e3be4f962c5623756ab2a4bb604450cd833ee6d10ad2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "63143efc1423cf1a757e3be4f962c5623756ab2a4bb604450cd833ee6d10ad2d", kill_on_drop: false }` [INFO] [stdout] 63143efc1423cf1a757e3be4f962c5623756ab2a4bb604450cd833ee6d10ad2d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7f5038b38bf376b24db369d30797081e17ffe4934c136efa9c4757f5693fa838 [INFO] running `Command { std: "docker" "start" "-a" "7f5038b38bf376b24db369d30797081e17ffe4934c136efa9c4757f5693fa838", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking intcode v0.1.0 (/opt/rustwide/workdir/intcode) [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking intcode2 v0.1.0 (/opt/rustwide/workdir/intcode2) [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.10 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking day05 v0.1.0 (/opt/rustwide/workdir/day05) [INFO] [stderr] Checking day15 v0.1.0 (/opt/rustwide/workdir/day15) [INFO] [stderr] Checking day19 v0.1.0 (/opt/rustwide/workdir/day19) [INFO] [stderr] Checking day21 v0.1.0 (/opt/rustwide/workdir/day21) [INFO] [stderr] Checking day02 v0.1.0 (/opt/rustwide/workdir/day02) [INFO] [stderr] Checking day06 v0.1.0 (/opt/rustwide/workdir/day06) [INFO] [stderr] Checking day09 v0.1.0 (/opt/rustwide/workdir/day09) [INFO] [stderr] Checking day01 v0.1.0 (/opt/rustwide/workdir/day01) [INFO] [stderr] Checking day22 v0.1.0 (/opt/rustwide/workdir/day22) [INFO] [stderr] Checking day18 v0.1.0 (/opt/rustwide/workdir/day18) [INFO] [stderr] Checking day07 v0.1.0 (/opt/rustwide/workdir/day07) [INFO] [stderr] Checking day13 v0.1.0 (/opt/rustwide/workdir/day13) [INFO] [stderr] Checking day17 v0.1.0 (/opt/rustwide/workdir/day17) [INFO] [stderr] Checking day11 v0.1.0 (/opt/rustwide/workdir/day11) [INFO] [stderr] Checking day23 v0.1.0 (/opt/rustwide/workdir/day23) [INFO] [stderr] Checking day20 v0.1.0 (/opt/rustwide/workdir/day20) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> day02/src/lib.rs:27:6 [INFO] [stdout] | [INFO] [stdout] 27 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking day16 v0.1.0 (/opt/rustwide/workdir/day16) [INFO] [stderr] Checking day12 v0.1.0 (/opt/rustwide/workdir/day12) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking day04 v0.1.0 (/opt/rustwide/workdir/day04) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> day13/src/lib.rs:159:41 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn part1(program: &[i64]) -> Option<(usize)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 159 - pub fn part1(program: &[i64]) -> Option<(usize)> { [INFO] [stdout] 159 + pub fn part1(program: &[i64]) -> Option { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> day22/src/deck.rs:38:17 [INFO] [stdout] | [INFO] [stdout] 38 | replace(&mut self.cards, cards); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 38 | let _ = replace(&mut self.cards, cards); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> day02/src/lib.rs:27:6 [INFO] [stdout] | [INFO] [stdout] 27 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> day13/src/lib.rs:159:41 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn part1(program: &[i64]) -> Option<(usize)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 159 - pub fn part1(program: &[i64]) -> Option<(usize)> { [INFO] [stdout] 159 + pub fn part1(program: &[i64]) -> Option { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> day22/src/deck.rs:38:17 [INFO] [stdout] | [INFO] [stdout] 38 | replace(&mut self.cards, cards); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 38 | let _ = replace(&mut self.cards, cards); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.65s [INFO] running `Command { std: "docker" "inspect" "7f5038b38bf376b24db369d30797081e17ffe4934c136efa9c4757f5693fa838", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f5038b38bf376b24db369d30797081e17ffe4934c136efa9c4757f5693fa838", kill_on_drop: false }` [INFO] [stdout] 7f5038b38bf376b24db369d30797081e17ffe4934c136efa9c4757f5693fa838 [INFO] checking scarvalhojr/adventofcode2019 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscarvalhojr%2Fadventofcode2019" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/scarvalhojr/adventofcode2019 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/scarvalhojr/adventofcode2019 [INFO] finished tweaking git repo https://github.com/scarvalhojr/adventofcode2019 [INFO] tweaked toml for git repo https://github.com/scarvalhojr/adventofcode2019 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/scarvalhojr/adventofcode2019 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a07b967a2d08ede9ae13ac939bb254998e77fdb7465fb01599003032638eca46 [INFO] running `Command { std: "docker" "start" "-a" "a07b967a2d08ede9ae13ac939bb254998e77fdb7465fb01599003032638eca46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a07b967a2d08ede9ae13ac939bb254998e77fdb7465fb01599003032638eca46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a07b967a2d08ede9ae13ac939bb254998e77fdb7465fb01599003032638eca46", kill_on_drop: false }` [INFO] [stdout] a07b967a2d08ede9ae13ac939bb254998e77fdb7465fb01599003032638eca46 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a436412b439b7b0582e3b67473474ddcb54ea95d2dfd132d47b5dec203d65787 [INFO] running `Command { std: "docker" "start" "-a" "a436412b439b7b0582e3b67473474ddcb54ea95d2dfd132d47b5dec203d65787", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking intcode v0.1.0 (/opt/rustwide/workdir/intcode) [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking intcode2 v0.1.0 (/opt/rustwide/workdir/intcode2) [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.10 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking day20 v0.1.0 (/opt/rustwide/workdir/day20) [INFO] [stderr] Checking day19 v0.1.0 (/opt/rustwide/workdir/day19) [INFO] [stderr] Checking day18 v0.1.0 (/opt/rustwide/workdir/day18) [INFO] [stderr] Checking day05 v0.1.0 (/opt/rustwide/workdir/day05) [INFO] [stderr] Checking day06 v0.1.0 (/opt/rustwide/workdir/day06) [INFO] [stderr] Checking day02 v0.1.0 (/opt/rustwide/workdir/day02) [INFO] [stderr] Checking day11 v0.1.0 (/opt/rustwide/workdir/day11) [INFO] [stderr] Checking day04 v0.1.0 (/opt/rustwide/workdir/day04) [INFO] [stderr] Checking day07 v0.1.0 (/opt/rustwide/workdir/day07) [INFO] [stderr] Checking day17 v0.1.0 (/opt/rustwide/workdir/day17) [INFO] [stderr] Checking day13 v0.1.0 (/opt/rustwide/workdir/day13) [INFO] [stderr] Checking day09 v0.1.0 (/opt/rustwide/workdir/day09) [INFO] [stderr] Checking day16 v0.1.0 (/opt/rustwide/workdir/day16) [INFO] [stderr] Checking day22 v0.1.0 (/opt/rustwide/workdir/day22) [INFO] [stderr] Checking day01 v0.1.0 (/opt/rustwide/workdir/day01) [INFO] [stderr] Checking day15 v0.1.0 (/opt/rustwide/workdir/day15) [INFO] [stderr] Checking day21 v0.1.0 (/opt/rustwide/workdir/day21) [INFO] [stderr] Checking day23 v0.1.0 (/opt/rustwide/workdir/day23) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> day02/src/lib.rs:27:6 [INFO] [stdout] | [INFO] [stdout] 27 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking day12 v0.1.0 (/opt/rustwide/workdir/day12) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> day13/src/lib.rs:159:41 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn part1(program: &[i64]) -> Option<(usize)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 159 - pub fn part1(program: &[i64]) -> Option<(usize)> { [INFO] [stdout] 159 + pub fn part1(program: &[i64]) -> Option { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> day22/src/deck.rs:38:17 [INFO] [stdout] | [INFO] [stdout] 38 | replace(&mut self.cards, cards); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 38 | let _ = replace(&mut self.cards, cards); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> day02/src/lib.rs:27:6 [INFO] [stdout] | [INFO] [stdout] 27 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> day13/src/lib.rs:159:41 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn part1(program: &[i64]) -> Option<(usize)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 159 - pub fn part1(program: &[i64]) -> Option<(usize)> { [INFO] [stdout] 159 + pub fn part1(program: &[i64]) -> Option { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> day22/src/deck.rs:38:17 [INFO] [stdout] | [INFO] [stdout] 38 | replace(&mut self.cards, cards); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 38 | let _ = replace(&mut self.cards, cards); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.98s [INFO] running `Command { std: "docker" "inspect" "a436412b439b7b0582e3b67473474ddcb54ea95d2dfd132d47b5dec203d65787", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a436412b439b7b0582e3b67473474ddcb54ea95d2dfd132d47b5dec203d65787", kill_on_drop: false }` [INFO] [stdout] a436412b439b7b0582e3b67473474ddcb54ea95d2dfd132d47b5dec203d65787