[INFO] cloning repository https://github.com/Riuchando/adventofcode2018 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Riuchando/adventofcode2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiuchando%2Fadventofcode2018", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiuchando%2Fadventofcode2018'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 53026c56aa3438b9d2b56c6ca5c2d8730070b105 [INFO] testing Riuchando/adventofcode2018 against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiuchando%2Fadventofcode2018" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Riuchando/adventofcode2018 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Riuchando/adventofcode2018 [INFO] finished tweaking git repo https://github.com/Riuchando/adventofcode2018 [INFO] tweaked toml for git repo https://github.com/Riuchando/adventofcode2018 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/Riuchando/adventofcode2018 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e54e7d4d03db1d537b8b6330ae1f5856cea098f322afafce0354687c22a9a077 [INFO] running `Command { std: "docker" "start" "-a" "e54e7d4d03db1d537b8b6330ae1f5856cea098f322afafce0354687c22a9a077", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e54e7d4d03db1d537b8b6330ae1f5856cea098f322afafce0354687c22a9a077", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e54e7d4d03db1d537b8b6330ae1f5856cea098f322afafce0354687c22a9a077", kill_on_drop: false }` [INFO] [stdout] e54e7d4d03db1d537b8b6330ae1f5856cea098f322afafce0354687c22a9a077 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e4f74b02a0a4f68efc320eea42b8c40b5036bbb980508341304c9f82802ef49e [INFO] running `Command { std: "docker" "start" "-a" "e4f74b02a0a4f68efc320eea42b8c40b5036bbb980508341304c9f82802ef49e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling either v1.5.0 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling time v0.1.40 [INFO] [stderr] Compiling daggy v0.6.0 [INFO] [stderr] Compiling chrono v0.4.6 [INFO] [stderr] Compiling adventofcode2018 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::hash::Hash` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::hash::Hash; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `itertools::Itertools` [INFO] [stdout] --> src/day4.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::Ordering` [INFO] [stdout] --> src/day4.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp::Ordering; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude::*` [INFO] [stdout] --> src/day5.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use chrono::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `itertools::Itertools` [INFO] [stdout] --> src/day5.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::Ordering` [INFO] [stdout] --> src/day5.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp::Ordering; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/day5.rs:56:27 [INFO] [stdout] | [INFO] [stdout] 56 | } else if (ascii_int as u8 as char == character.to_ascii_uppercase() [INFO] [stdout] | ^ [INFO] [stdout] 57 | || ascii_int as u8 as char == character.to_ascii_lowercase()) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 56 ~ } else if ascii_int as u8 as char == character.to_ascii_uppercase() [INFO] [stdout] 57 ~ || ascii_int as u8 as char == character.to_ascii_lowercase() [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/day5.rs:60:27 [INFO] [stdout] | [INFO] [stdout] 60 | } else if (match left_vec.last() { [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 70 | }) { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 60 ~ } else if match left_vec.last() { [INFO] [stdout] 61 | Some(x) => { [INFO] [stdout] 62 | (x.is_ascii_uppercase() [INFO] [stdout] 63 | && character.is_ascii_lowercase() [INFO] [stdout] 64 | && character.to_ascii_uppercase() == *x [INFO] [stdout] 65 | || (left_vec.last().unwrap().is_ascii_lowercase() [INFO] [stdout] ... [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/day5.rs:62:25 [INFO] [stdout] | [INFO] [stdout] 62 | (x.is_ascii_uppercase() [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 67 | && character.to_ascii_lowercase() == *left_vec.last().unwrap())) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 62 ~ x.is_ascii_uppercase() [INFO] [stdout] 63 | && character.is_ascii_lowercase() [INFO] [stdout] 64 | && character.to_ascii_uppercase() == *x [INFO] [stdout] 65 | || (left_vec.last().unwrap().is_ascii_lowercase() [INFO] [stdout] 66 | && character.is_ascii_uppercase() [INFO] [stdout] 67 ~ && character.to_ascii_lowercase() == *left_vec.last().unwrap()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude::*` [INFO] [stdout] --> src/day6.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use chrono::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::Ordering` [INFO] [stdout] --> src/day6.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp::Ordering; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::EdgeType` [INFO] [stdout] --> src/day7.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use petgraph::EdgeType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `dominators`, `has_path_connecting`, `is_cyclic_undirected`, `is_isomorphic_matching`, `min_spanning_tree` [INFO] [stdout] --> src/day7.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | dominators, has_path_connecting, is_cyclic_undirected, is_isomorphic_matching, [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 15 | min_spanning_tree, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::graph::node_index as n` [INFO] [stdout] --> src/day7.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use petgraph::graph::node_index as n; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `DfsSpace`, `astar`, `dijkstra` [INFO] [stdout] --> src/day7.rs:21:22 [INFO] [stdout] | [INFO] [stdout] 21 | use petgraph::algo::{astar, dijkstra, DfsSpace}; [INFO] [stdout] | ^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `IntoNodeIdentifiers`, `NodeFiltered`, `Reversed`, `Topo`, `VisitMap`, `Walker` [INFO] [stdout] --> src/day7.rs:23:20 [INFO] [stdout] | [INFO] [stdout] 23 | IntoNeighbors, IntoNodeIdentifiers, NodeFiltered, Reversed, Topo, VisitMap, Walker, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^ ^^^^ ^^^^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::dot::Dot` [INFO] [stdout] --> src/day7.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | use petgraph::dot::Dot; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/day7.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::hash::Hash` [INFO] [stdout] --> src/day7.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | use std::hash::Hash; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::prelude::*` [INFO] [stdout] --> src/day7.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | use petgraph::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate-level attribute should be in the root module [INFO] [stdout] --> src/day7.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(extern_prelude)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::graph::IndexType` [INFO] [stdout] --> src/day7.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | use petgraph::graph::IndexType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `IntoNeighbors` [INFO] [stdout] --> src/day7.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | IntoNeighbors, IntoNodeIdentifiers, NodeFiltered, Reversed, Topo, VisitMap, Walker, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/day6.rs:186:42 [INFO] [stdout] | [INFO] [stdout] 186 | Ok(match index_sizes.iter().max_by(|(k, v), (a, b)| v.cmp(a)) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/day6.rs:186:53 [INFO] [stdout] | [INFO] [stdout] 186 | Ok(match index_sizes.iter().max_by(|(k, v), (a, b)| v.cmp(a)) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/day7.rs:128:9 [INFO] [stdout] | [INFO] [stdout] 128 | let f = BufReader::new(f); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day6.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let mut ring = 0; [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: function is never used: `part1_wavefront` [INFO] [stdout] --> src/day6.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn part1_wavefront() -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 29 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.32s [INFO] running `Command { std: "docker" "inspect" "e4f74b02a0a4f68efc320eea42b8c40b5036bbb980508341304c9f82802ef49e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4f74b02a0a4f68efc320eea42b8c40b5036bbb980508341304c9f82802ef49e", kill_on_drop: false }` [INFO] [stdout] e4f74b02a0a4f68efc320eea42b8c40b5036bbb980508341304c9f82802ef49e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5780ea8df167398fcc2452982c01403c770cf09ab6fb1335ae14526b0fc9cb74 [INFO] running `Command { std: "docker" "start" "-a" "5780ea8df167398fcc2452982c01403c770cf09ab6fb1335ae14526b0fc9cb74", kill_on_drop: false }` [INFO] [stderr] Compiling adventofcode2018 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::hash::Hash` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::hash::Hash; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `itertools::Itertools` [INFO] [stdout] --> src/day4.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::Ordering` [INFO] [stdout] --> src/day4.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp::Ordering; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude::*` [INFO] [stdout] --> src/day5.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use chrono::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `itertools::Itertools` [INFO] [stdout] --> src/day5.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::Ordering` [INFO] [stdout] --> src/day5.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp::Ordering; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/day5.rs:56:27 [INFO] [stdout] | [INFO] [stdout] 56 | } else if (ascii_int as u8 as char == character.to_ascii_uppercase() [INFO] [stdout] | ^ [INFO] [stdout] 57 | || ascii_int as u8 as char == character.to_ascii_lowercase()) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 56 ~ } else if ascii_int as u8 as char == character.to_ascii_uppercase() [INFO] [stdout] 57 ~ || ascii_int as u8 as char == character.to_ascii_lowercase() [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/day5.rs:60:27 [INFO] [stdout] | [INFO] [stdout] 60 | } else if (match left_vec.last() { [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 70 | }) { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 60 ~ } else if match left_vec.last() { [INFO] [stdout] 61 | Some(x) => { [INFO] [stdout] 62 | (x.is_ascii_uppercase() [INFO] [stdout] 63 | && character.is_ascii_lowercase() [INFO] [stdout] 64 | && character.to_ascii_uppercase() == *x [INFO] [stdout] 65 | || (left_vec.last().unwrap().is_ascii_lowercase() [INFO] [stdout] ... [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/day5.rs:62:25 [INFO] [stdout] | [INFO] [stdout] 62 | (x.is_ascii_uppercase() [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 67 | && character.to_ascii_lowercase() == *left_vec.last().unwrap())) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 62 ~ x.is_ascii_uppercase() [INFO] [stdout] 63 | && character.is_ascii_lowercase() [INFO] [stdout] 64 | && character.to_ascii_uppercase() == *x [INFO] [stdout] 65 | || (left_vec.last().unwrap().is_ascii_lowercase() [INFO] [stdout] 66 | && character.is_ascii_uppercase() [INFO] [stdout] 67 ~ && character.to_ascii_lowercase() == *left_vec.last().unwrap()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude::*` [INFO] [stdout] --> src/day6.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use chrono::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::Ordering` [INFO] [stdout] --> src/day6.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp::Ordering; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::EdgeType` [INFO] [stdout] --> src/day7.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use petgraph::EdgeType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `dominators`, `has_path_connecting`, `is_cyclic_undirected`, `is_isomorphic_matching`, `min_spanning_tree` [INFO] [stdout] --> src/day7.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | dominators, has_path_connecting, is_cyclic_undirected, is_isomorphic_matching, [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 15 | min_spanning_tree, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::graph::node_index as n` [INFO] [stdout] --> src/day7.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use petgraph::graph::node_index as n; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `DfsSpace`, `astar`, `dijkstra` [INFO] [stdout] --> src/day7.rs:21:22 [INFO] [stdout] | [INFO] [stdout] 21 | use petgraph::algo::{astar, dijkstra, DfsSpace}; [INFO] [stdout] | ^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `IntoNodeIdentifiers`, `NodeFiltered`, `Reversed`, `Topo`, `VisitMap`, `Walker` [INFO] [stdout] --> src/day7.rs:23:20 [INFO] [stdout] | [INFO] [stdout] 23 | IntoNeighbors, IntoNodeIdentifiers, NodeFiltered, Reversed, Topo, VisitMap, Walker, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^ ^^^^ ^^^^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::dot::Dot` [INFO] [stdout] --> src/day7.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | use petgraph::dot::Dot; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/day7.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::hash::Hash` [INFO] [stdout] --> src/day7.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | use std::hash::Hash; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::prelude::*` [INFO] [stdout] --> src/day7.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | use petgraph::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate-level attribute should be in the root module [INFO] [stdout] --> src/day7.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(extern_prelude)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `petgraph::graph::IndexType` [INFO] [stdout] --> src/day7.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | use petgraph::graph::IndexType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `IntoNeighbors` [INFO] [stdout] --> src/day7.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | IntoNeighbors, IntoNodeIdentifiers, NodeFiltered, Reversed, Topo, VisitMap, Walker, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/day6.rs:186:42 [INFO] [stdout] | [INFO] [stdout] 186 | Ok(match index_sizes.iter().max_by(|(k, v), (a, b)| v.cmp(a)) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/day6.rs:186:53 [INFO] [stdout] | [INFO] [stdout] 186 | Ok(match index_sizes.iter().max_by(|(k, v), (a, b)| v.cmp(a)) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/day7.rs:128:9 [INFO] [stdout] | [INFO] [stdout] 128 | let f = BufReader::new(f); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day6.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let mut ring = 0; [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: function is never used: `part1_wavefront` [INFO] [stdout] --> src/day6.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn part1_wavefront() -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 29 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.42s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/adventofcode2018-750dd13bfb99a2a6) [INFO] running `Command { std: "docker" "inspect" "5780ea8df167398fcc2452982c01403c770cf09ab6fb1335ae14526b0fc9cb74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5780ea8df167398fcc2452982c01403c770cf09ab6fb1335ae14526b0fc9cb74", kill_on_drop: false }` [INFO] [stdout] 5780ea8df167398fcc2452982c01403c770cf09ab6fb1335ae14526b0fc9cb74 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a3417a49d0f4f94e7eff38a77766f7ba351e7f04ab1b7f1b21a07f6f5e100ab2 [INFO] running `Command { std: "docker" "start" "-a" "a3417a49d0f4f94e7eff38a77766f7ba351e7f04ab1b7f1b21a07f6f5e100ab2", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::collections::HashSet` [INFO] [stderr] --> src/main.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use std::collections::HashSet; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::hash::Hash` [INFO] [stderr] --> src/main.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | use std::hash::Hash; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `itertools::Itertools` [INFO] [stderr] --> src/day4.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use itertools::Itertools; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::Ordering` [INFO] [stderr] --> src/day4.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::cmp::Ordering; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `chrono::prelude::*` [INFO] [stderr] --> src/day5.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use chrono::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `itertools::Itertools` [INFO] [stderr] --> src/day5.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use itertools::Itertools; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::Ordering` [INFO] [stderr] --> src/day5.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::cmp::Ordering; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/day5.rs:56:27 [INFO] [stderr] | [INFO] [stderr] 56 | } else if (ascii_int as u8 as char == character.to_ascii_uppercase() [INFO] [stderr] | ^ [INFO] [stderr] 57 | || ascii_int as u8 as char == character.to_ascii_lowercase()) [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 56 ~ } else if ascii_int as u8 as char == character.to_ascii_uppercase() [INFO] [stderr] 57 ~ || ascii_int as u8 as char == character.to_ascii_lowercase() [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/day5.rs:60:27 [INFO] [stderr] | [INFO] [stderr] 60 | } else if (match left_vec.last() { [INFO] [stderr] | ^ [INFO] [stderr] ... [INFO] [stderr] 70 | }) { [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 60 ~ } else if match left_vec.last() { [INFO] [stderr] 61 | Some(x) => { [INFO] [stderr] 62 | (x.is_ascii_uppercase() [INFO] [stderr] 63 | && character.is_ascii_lowercase() [INFO] [stderr] 64 | && character.to_ascii_uppercase() == *x [INFO] [stderr] 65 | || (left_vec.last().unwrap().is_ascii_lowercase() [INFO] [stderr] ... [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/day5.rs:62:25 [INFO] [stderr] | [INFO] [stderr] 62 | (x.is_ascii_uppercase() [INFO] [stderr] | ^ [INFO] [stderr] ... [INFO] [stderr] 67 | && character.to_ascii_lowercase() == *left_vec.last().unwrap())) [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 62 ~ x.is_ascii_uppercase() [INFO] [stderr] 63 | && character.is_ascii_lowercase() [INFO] [stderr] 64 | && character.to_ascii_uppercase() == *x [INFO] [stderr] 65 | || (left_vec.last().unwrap().is_ascii_lowercase() [INFO] [stderr] 66 | && character.is_ascii_uppercase() [INFO] [stderr] 67 ~ && character.to_ascii_lowercase() == *left_vec.last().unwrap()) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused import: `chrono::prelude::*` [INFO] [stderr] --> src/day6.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use chrono::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::Ordering` [INFO] [stderr] --> src/day6.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::cmp::Ordering; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `petgraph::EdgeType` [INFO] [stderr] --> src/day7.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use petgraph::EdgeType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `dominators`, `has_path_connecting`, `is_cyclic_undirected`, `is_isomorphic_matching`, `min_spanning_tree` [INFO] [stderr] --> src/day7.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | dominators, has_path_connecting, is_cyclic_undirected, is_isomorphic_matching, [INFO] [stderr] | ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 15 | min_spanning_tree, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `petgraph::graph::node_index as n` [INFO] [stderr] --> src/day7.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | use petgraph::graph::node_index as n; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `DfsSpace`, `astar`, `dijkstra` [INFO] [stderr] --> src/day7.rs:21:22 [INFO] [stderr] | [INFO] [stderr] 21 | use petgraph::algo::{astar, dijkstra, DfsSpace}; [INFO] [stderr] | ^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `IntoNodeIdentifiers`, `NodeFiltered`, `Reversed`, `Topo`, `VisitMap`, `Walker` [INFO] [stderr] --> src/day7.rs:23:20 [INFO] [stderr] | [INFO] [stderr] 23 | IntoNeighbors, IntoNodeIdentifiers, NodeFiltered, Reversed, Topo, VisitMap, Walker, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^ ^^^^ ^^^^^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `petgraph::dot::Dot` [INFO] [stderr] --> src/day7.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | use petgraph::dot::Dot; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashSet` [INFO] [stderr] --> src/day7.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | use std::collections::HashSet; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::hash::Hash` [INFO] [stderr] --> src/day7.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | use std::hash::Hash; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `petgraph::prelude::*` [INFO] [stderr] --> src/day7.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | use petgraph::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: crate-level attribute should be in the root module [INFO] [stderr] --> src/day7.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(extern_prelude)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_attributes)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `petgraph::graph::IndexType` [INFO] [stderr] --> src/day7.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | use petgraph::graph::IndexType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `IntoNeighbors` [INFO] [stderr] --> src/day7.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | IntoNeighbors, IntoNodeIdentifiers, NodeFiltered, Reversed, Topo, VisitMap, Walker, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `k` [INFO] [stderr] --> src/day6.rs:186:42 [INFO] [stderr] | [INFO] [stderr] 186 | Ok(match index_sizes.iter().max_by(|(k, v), (a, b)| v.cmp(a)) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/day6.rs:186:53 [INFO] [stderr] | [INFO] [stderr] 186 | Ok(match index_sizes.iter().max_by(|(k, v), (a, b)| v.cmp(a)) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/day7.rs:128:9 [INFO] [stderr] | [INFO] [stderr] 128 | let f = BufReader::new(f); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/day6.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let mut ring = 0; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `part1_wavefront` [INFO] [stderr] --> src/day6.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn part1_wavefront() -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `adventofcode2018` (bin "adventofcode2018" test) generated 29 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/adventofcode2018-750dd13bfb99a2a6) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a3417a49d0f4f94e7eff38a77766f7ba351e7f04ab1b7f1b21a07f6f5e100ab2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3417a49d0f4f94e7eff38a77766f7ba351e7f04ab1b7f1b21a07f6f5e100ab2", kill_on_drop: false }` [INFO] [stdout] a3417a49d0f4f94e7eff38a77766f7ba351e7f04ab1b7f1b21a07f6f5e100ab2