[INFO] cloning repository https://github.com/js-sb/adventofcode2021 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/js-sb/adventofcode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs-sb%2Fadventofcode2021", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs-sb%2Fadventofcode2021'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 418c2909f9a78a369619030bcf8eddb7cea20265 [INFO] checking js-sb/adventofcode2021 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs-sb%2Fadventofcode2021" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/js-sb/adventofcode2021 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/js-sb/adventofcode2021 [INFO] finished tweaking git repo https://github.com/js-sb/adventofcode2021 [INFO] tweaked toml for git repo https://github.com/js-sb/adventofcode2021 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/js-sb/adventofcode2021 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 913aadb35eaa0402d5b698fbb99f086c157a7dd062ce1d4cf1702a461823f994 [INFO] running `Command { std: "docker" "start" "-a" "913aadb35eaa0402d5b698fbb99f086c157a7dd062ce1d4cf1702a461823f994", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "913aadb35eaa0402d5b698fbb99f086c157a7dd062ce1d4cf1702a461823f994", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "913aadb35eaa0402d5b698fbb99f086c157a7dd062ce1d4cf1702a461823f994", kill_on_drop: false }` [INFO] [stdout] 913aadb35eaa0402d5b698fbb99f086c157a7dd062ce1d4cf1702a461823f994 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4d87525ae38a9371fbf4610c920e7fcc2b20deb5a581e7ca0838f96a85b6327c [INFO] running `Command { std: "docker" "start" "-a" "4d87525ae38a9371fbf4610c920e7fcc2b20deb5a581e7ca0838f96a85b6327c", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling libc v0.2.109 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling crc32fast v1.3.0 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking weezl v0.1.5 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking color_quant v1.1.0 [INFO] [stderr] Checking bytemuck v1.7.2 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking miniz_oxide v0.3.7 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking deflate v0.8.6 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Checking gif v0.11.3 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking png v0.16.8 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking num-complex v0.4.0 [INFO] [stderr] Checking num v0.4.0 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking tiff v0.6.1 [INFO] [stderr] Checking image v0.23.14 [INFO] [stderr] Checking advent_of_code v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `size` is never read [INFO] [stdout] --> src/day15.rs:123:5 [INFO] [stdout] | [INFO] [stdout] 119 | struct Zones { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 123 | size: Position, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Zones` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/day4.rs:22:15 [INFO] [stdout] | [INFO] [stdout] 22 | board.clone().into_iter() [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[i32]` does not implement `Clone`, so calling `clone` on `&[i32]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `size` is never read [INFO] [stdout] --> src/day15.rs:123:5 [INFO] [stdout] | [INFO] [stdout] 119 | struct Zones { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 123 | size: Position, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Zones` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/day4.rs:22:15 [INFO] [stdout] | [INFO] [stdout] 22 | board.clone().into_iter() [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[i32]` does not implement `Clone`, so calling `clone` on `&[i32]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.29s [INFO] running `Command { std: "docker" "inspect" "4d87525ae38a9371fbf4610c920e7fcc2b20deb5a581e7ca0838f96a85b6327c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d87525ae38a9371fbf4610c920e7fcc2b20deb5a581e7ca0838f96a85b6327c", kill_on_drop: false }` [INFO] [stdout] 4d87525ae38a9371fbf4610c920e7fcc2b20deb5a581e7ca0838f96a85b6327c [INFO] checking js-sb/adventofcode2021 against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs-sb%2Fadventofcode2021" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/js-sb/adventofcode2021 on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/js-sb/adventofcode2021 [INFO] finished tweaking git repo https://github.com/js-sb/adventofcode2021 [INFO] tweaked toml for git repo https://github.com/js-sb/adventofcode2021 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/js-sb/adventofcode2021 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d8879b02854a660c3462b558ecf9f7c62cb3b3d8cea035d7475239e89e7887d9 [INFO] running `Command { std: "docker" "start" "-a" "d8879b02854a660c3462b558ecf9f7c62cb3b3d8cea035d7475239e89e7887d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d8879b02854a660c3462b558ecf9f7c62cb3b3d8cea035d7475239e89e7887d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8879b02854a660c3462b558ecf9f7c62cb3b3d8cea035d7475239e89e7887d9", kill_on_drop: false }` [INFO] [stdout] d8879b02854a660c3462b558ecf9f7c62cb3b3d8cea035d7475239e89e7887d9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail_expr_drop_order" "-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 680d2e76b540a101936467022b605449124eeb69f7f5bde584ceef0e9122687d [INFO] running `Command { std: "docker" "start" "-a" "680d2e76b540a101936467022b605449124eeb69f7f5bde584ceef0e9122687d", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling libc v0.2.109 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling crc32fast v1.3.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking weezl v0.1.5 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking color_quant v1.1.0 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking bytemuck v1.7.2 [INFO] [stderr] Checking miniz_oxide v0.3.7 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking deflate v0.8.6 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Checking gif v0.11.3 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking png v0.16.8 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking num-complex v0.4.0 [INFO] [stderr] Checking num v0.4.0 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking tiff v0.6.1 [INFO] [stderr] Checking image v0.23.14 [INFO] [stderr] Checking advent_of_code v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `size` is never read [INFO] [stdout] --> src/day15.rs:123:5 [INFO] [stdout] | [INFO] [stdout] 119 | struct Zones { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 123 | size: Position, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Zones` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | fn into_tuple(self, needle:&str) -> Vec<(String, i32)> { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 14 | / self.map(|l| [INFO] [stdout] 15 | | (l.as_ref().expect("unable to read line") [INFO] [stdout] 16 | | .split(needle).nth(0).expect("no object").to_string(), [INFO] [stdout] 17 | | l.as_ref().expect("unable to read line") [INFO] [stdout] 18 | | .split(needle).nth(1).expect("no object") [INFO] [stdout] 19 | | .parse::().expect("unable to parse"))) [INFO] [stdout] | |____________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/day4.rs:22:15 [INFO] [stdout] | [INFO] [stdout] 22 | board.clone().into_iter() [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[i32]` does not implement `Clone`, so calling `clone` on `&[i32]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `size` is never read [INFO] [stdout] --> src/day15.rs:123:5 [INFO] [stdout] | [INFO] [stdout] 119 | struct Zones { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 123 | size: Position, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Zones` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | fn into_tuple(self, needle:&str) -> Vec<(String, i32)> { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 14 | / self.map(|l| [INFO] [stdout] 15 | | (l.as_ref().expect("unable to read line") [INFO] [stdout] 16 | | .split(needle).nth(0).expect("no object").to_string(), [INFO] [stdout] 17 | | l.as_ref().expect("unable to read line") [INFO] [stdout] 18 | | .split(needle).nth(1).expect("no object") [INFO] [stdout] 19 | | .parse::().expect("unable to parse"))) [INFO] [stdout] | |____________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/day4.rs:22:15 [INFO] [stdout] | [INFO] [stdout] 22 | board.clone().into_iter() [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[i32]` does not implement `Clone`, so calling `clone` on `&[i32]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `advent_of_code` (bin "advent_of_code" test) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `advent_of_code` (bin "advent_of_code") due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "680d2e76b540a101936467022b605449124eeb69f7f5bde584ceef0e9122687d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "680d2e76b540a101936467022b605449124eeb69f7f5bde584ceef0e9122687d", kill_on_drop: false }` [INFO] [stdout] 680d2e76b540a101936467022b605449124eeb69f7f5bde584ceef0e9122687d