[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] checking Riuchando/adventofcode2018 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiuchando%2Fadventofcode2018" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[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-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Riuchando/adventofcode2018 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Riuchando/adventofcode2018 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9c50b6e8d0ce6de18ca1a41b4bb54c8b7932ffac2bb8f50971a8af0d7fada1e
[INFO] running `Command { std: "docker" "start" "-a" "a9c50b6e8d0ce6de18ca1a41b4bb54c8b7932ffac2bb8f50971a8af0d7fada1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9c50b6e8d0ce6de18ca1a41b4bb54c8b7932ffac2bb8f50971a8af0d7fada1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c50b6e8d0ce6de18ca1a41b4bb54c8b7932ffac2bb8f50971a8af0d7fada1e", kill_on_drop: false }`
[INFO] [stdout] a9c50b6e8d0ce6de18ca1a41b4bb54c8b7932ffac2bb8f50971a8af0d7fada1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 289b18c0d608da6200e9d57cb5f2349ba4e88b48154eb89760d81b7a818ba9e1
[INFO] running `Command { std: "docker" "start" "-a" "289b18c0d608da6200e9d57cb5f2349ba4e88b48154eb89760d81b7a818ba9e1", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking daggy v0.6.0
[INFO] [stderr]     Checking 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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] ...
[INFO] [stdout] 69 |                     None => false,
[INFO] [stdout] 70 ~                 }  {
[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] ...
[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`, and `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`, and `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`, and `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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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] ...
[INFO] [stdout] 69 |                     None => false,
[INFO] [stdout] 70 ~                 }  {
[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] ...
[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`, and `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`, and `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`, and `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)]` (part of `#[warn(unused)]`) on by default
[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 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 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: 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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) 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: 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: function `part1_wavefront` is never used
[INFO] [stdout]   --> src/day6.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn part1_wavefront() -> Result<u32, Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1_wavefront` is never used
[INFO] [stdout]   --> src/day6.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn part1_wavefront() -> Result<u32, Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day2.rs:51:18
[INFO] [stdout]    |
[INFO] [stdout] 51 |           vec.push(line?
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 52 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day2.rs:51:18
[INFO] [stdout]    |
[INFO] [stdout] 51 |           vec.push(line?
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 52 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day2.rs:80:18
[INFO] [stdout]    |
[INFO] [stdout] 80 |           vec.push(line?
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 81 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day2.rs:80:18
[INFO] [stdout]    |
[INFO] [stdout] 80 |           vec.push(line?
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 81 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day3.rs:137:26
[INFO] [stdout]     |
[INFO] [stdout] 137 |           let line_split = line?
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 138 | |             .parse::<String>()
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day4.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 19 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day4.rs:141:26
[INFO] [stdout]     |
[INFO] [stdout] 141 |           let line_split = line?
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 142 | |             .parse::<String>()
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day5.rs:16:26
[INFO] [stdout]    |
[INFO] [stdout] 16 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 17 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day5.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 45 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day6.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 19 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day6.rs:196:26
[INFO] [stdout]     |
[INFO] [stdout] 196 |           let line_split = line?
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 197 | |             .parse::<String>()
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day6.rs:253:26
[INFO] [stdout]     |
[INFO] [stdout] 253 |           let line_split = line?
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 254 | |             .parse::<String>()
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day7.rs:60:26
[INFO] [stdout]    |
[INFO] [stdout] 60 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 61 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day3.rs:137:26
[INFO] [stdout]     |
[INFO] [stdout] 137 |           let line_split = line?
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 138 | |             .parse::<String>()
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day4.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 19 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day4.rs:141:26
[INFO] [stdout]     |
[INFO] [stdout] 141 |           let line_split = line?
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 142 | |             .parse::<String>()
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day5.rs:16:26
[INFO] [stdout]    |
[INFO] [stdout] 16 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 17 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day5.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 45 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day6.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 19 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day6.rs:196:26
[INFO] [stdout]     |
[INFO] [stdout] 196 |           let line_split = line?
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 197 | |             .parse::<String>()
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day6.rs:253:26
[INFO] [stdout]     |
[INFO] [stdout] 253 |           let line_split = line?
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 254 | |             .parse::<String>()
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day7.rs:60:26
[INFO] [stdout]    |
[INFO] [stdout] 60 |           let line_split = line?
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 61 | |             .parse::<String>()
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adventofcode2018` (bin "adventofcode2018") due to 11 previous errors; 29 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `adventofcode2018` (bin "adventofcode2018" test) due to 11 previous errors; 29 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "289b18c0d608da6200e9d57cb5f2349ba4e88b48154eb89760d81b7a818ba9e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "289b18c0d608da6200e9d57cb5f2349ba4e88b48154eb89760d81b7a818ba9e1", kill_on_drop: false }`
[INFO] [stdout] 289b18c0d608da6200e9d57cb5f2349ba4e88b48154eb89760d81b7a818ba9e1