[INFO] cloning repository https://github.com/boylede/aoc2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/boylede/aoc2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboylede%2Faoc2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboylede%2Faoc2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fcadcc4580819046006fa3541905a3a530ff21cb
[INFO] testing boylede/aoc2018 against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboylede%2Faoc2018" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/boylede/aoc2018 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/boylede/aoc2018
[INFO] finished tweaking git repo https://github.com/boylede/aoc2018
[INFO] tweaked toml for git repo https://github.com/boylede/aoc2018 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/boylede/aoc2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77157fa5b8fe6bca4d33ff46c3ae2f476fada334d374dc7bdb357395d3ac70ec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "77157fa5b8fe6bca4d33ff46c3ae2f476fada334d374dc7bdb357395d3ac70ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77157fa5b8fe6bca4d33ff46c3ae2f476fada334d374dc7bdb357395d3ac70ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77157fa5b8fe6bca4d33ff46c3ae2f476fada334d374dc7bdb357395d3ac70ec", kill_on_drop: false }`
[INFO] [stdout] 77157fa5b8fe6bca4d33ff46c3ae2f476fada334d374dc7bdb357395d3ac70ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0ef440d8ec85d9b3a2d91aadd435735db69aba8c8b290c38e303daef843401c4
[INFO] running `Command { std: "docker" "start" "-a" "0ef440d8ec85d9b3a2d91aadd435735db69aba8c8b290c38e303daef843401c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf-8 v0.7.4
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[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
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[INFO] [stderr]    Compiling parking_lot_core v0.3.1
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[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
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[INFO] [stderr]    Compiling tokio-threadpool v0.1.9
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[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
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[INFO] [stderr]    Compiling tokio v0.1.13
[INFO] [stderr]    Compiling h2 v0.1.13
[INFO] [stderr]    Compiling hyper v0.12.16
[INFO] [stderr]    Compiling select v0.4.2
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling reqwest v0.9.5
[INFO] [stderr]    Compiling aoc2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Attr`, `Class`
[INFO] [stdout]   --> src/lib.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 | use select::predicate::{Predicate, Attr, Class, Name};
[INFO] [stdout]    |                                    ^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:133:6
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     write!(buf, "## {}\n",node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:136:6
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     write!(buf, "{}\n\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:139:6
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     write!(buf, "\t{}\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:142:6
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     write!(buf, "\n");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:144:6
[INFO] [stdout]     |
[INFO] [stdout] 144 |                     write!(buf, "\n");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:147:6
[INFO] [stdout]     |
[INFO] [stdout] 147 |                     write!(buf, "  * {}\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:150:6
[INFO] [stdout]     |
[INFO] [stdout] 150 |                     write!(buf, "\n<{}>\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:160:2
[INFO] [stdout]     |
[INFO] [stdout] 160 |     buf.seek(SeekFrom::Start(0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/day6/mod.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     } else if (distance == shortest_distance) {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day7/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::Entry::Occupied`
[INFO] [stdout]   --> src/day7/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::collections::hash_map::Entry::Occupied;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/day8/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day8/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day8/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Formatter`
[INFO] [stdout]  --> src/day8/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fmt::Formatter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/day8/mod.rs:71:36
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn visit_all(&self, visitor: &mut FnMut(&LicenseNode) ) {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&LicenseNode)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day9/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day9/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day9/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day10/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day10/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day10/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day11/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day11/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day11/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day12/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day12/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day12/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day13/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day13/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day13/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day14/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day14/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day14/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day15/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day15/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day15/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day16/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day16/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day16/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day17/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day17/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day17/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day18/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day18/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day18/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day19/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day19/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day19/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day20/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day20/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day20/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day21/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day21/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day21/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day22/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day22/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day22/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day23/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day23/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day23/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day24/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day24/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day24/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day25/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day25/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day25/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/day6/mod.rs:134:10
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]    --> src/day6/mod.rs:200:7
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let parent = 0;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `distance`
[INFO] [stdout]    --> src/day6/mod.rs:201:7
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let distance = 0;
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `step_id`
[INFO] [stdout]   --> src/day7/mod.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 |     while outline.iter().any(|(step_id, step)| {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_step_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/day7/mod.rs:124:10
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day8/mod.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_index`
[INFO] [stdout]    --> src/day8/mod.rs:102:6
[INFO] [stdout]     |
[INFO] [stdout] 102 |     for node_index in 0..*node_count {
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `meta_index`
[INFO] [stdout]    --> src/day8/mod.rs:106:6
[INFO] [stdout]     |
[INFO] [stdout] 106 |     for meta_index in 0..*meta_count {
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_meta_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day9/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day9/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day10/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day10/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day11/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day11/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day12/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day12/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day13/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day13/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day14/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day14/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day15/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day15/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day16/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day16/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day17/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day17/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day18/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day18/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day19/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day19/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day20/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day20/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day21/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day21/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day22/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day22/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day23/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day23/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day24/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day24/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day25/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day25/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day6/mod.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut field = Grid::with_coordinates(&coordinates);
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/day7/mod.rs:104:16
[INFO] [stdout]     |
[INFO] [stdout] 104 |     for (step_id, mut step) in outline.iter() {
[INFO] [stdout]     |                   ----^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unoccupied`
[INFO] [stdout]   --> src/day3/mod.rs:67:2
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Unoccupied,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]    --> src/day6/mod.rs:159:2
[INFO] [stdout]     |
[INFO] [stdout] 159 |     parent: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `distance`
[INFO] [stdout]    --> src/day6/mod.rs:160:2
[INFO] [stdout]     |
[INFO] [stdout] 160 |     distance: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cells`
[INFO] [stdout]    --> src/day6/mod.rs:164:2
[INFO] [stdout]     |
[INFO] [stdout] 164 |     cells: Vec<Position>,    // voronoi input points
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AnyError`
[INFO] [stdout]    --> src/day7/mod.rs:157:2
[INFO] [stdout]     |
[INFO] [stdout] 157 |     AnyError,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `l`
[INFO] [stdout]    --> src/day8/mod.rs:116:2
[INFO] [stdout]     |
[INFO] [stdout] 116 |     l: &'a LicenseNode,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `index`
[INFO] [stdout]    --> src/day8/mod.rs:117:2
[INFO] [stdout]     |
[INFO] [stdout] 117 |     index: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]    --> src/day8/mod.rs:137:2
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Error,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minus`
[INFO] [stdout]   --> src/day25/mod.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn minus(&self, b: &Point4d) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `distance`
[INFO] [stdout]   --> src/day25/mod.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn distance(a: i32, b: i32) -> i32{
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/day7/mod.rs:205:4
[INFO] [stdout]     |
[INFO] [stdout] 205 |             write!(f, "{:?}:[", self.status);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/day7/mod.rs:207:5
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 write!(f, "{},", step);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/day7/mod.rs:209:4
[INFO] [stdout]     |
[INFO] [stdout] 209 |             write!(f, "]");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/day7/mod.rs:211:4
[INFO] [stdout]     |
[INFO] [stdout] 211 |             write!(f, "{:?}", self.status);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 117 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "0ef440d8ec85d9b3a2d91aadd435735db69aba8c8b290c38e303daef843401c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ef440d8ec85d9b3a2d91aadd435735db69aba8c8b290c38e303daef843401c4", kill_on_drop: false }`
[INFO] [stdout] 0ef440d8ec85d9b3a2d91aadd435735db69aba8c8b290c38e303daef843401c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ae89d54fb34a30f4af1ca41ebca42254eeb7c1a54e9779ebf60ab192bb68aa5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6ae89d54fb34a30f4af1ca41ebca42254eeb7c1a54e9779ebf60ab192bb68aa5", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Attr`, `Class`
[INFO] [stdout]   --> src/lib.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 | use select::predicate::{Predicate, Attr, Class, Name};
[INFO] [stdout]    |                                    ^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:133:6
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     write!(buf, "## {}\n",node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:136:6
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     write!(buf, "{}\n\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:139:6
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     write!(buf, "\t{}\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:142:6
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     write!(buf, "\n");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:144:6
[INFO] [stdout]     |
[INFO] [stdout] 144 |                     write!(buf, "\n");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:147:6
[INFO] [stdout]     |
[INFO] [stdout] 147 |                     write!(buf, "  * {}\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:150:6
[INFO] [stdout]     |
[INFO] [stdout] 150 |                     write!(buf, "\n<{}>\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:160:2
[INFO] [stdout]     |
[INFO] [stdout] 160 |     buf.seek(SeekFrom::Start(0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Attr`, `Class`
[INFO] [stdout]   --> src/lib.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 | use select::predicate::{Predicate, Attr, Class, Name};
[INFO] [stdout]    |                                    ^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/day6/mod.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     } else if (distance == shortest_distance) {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day7/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::Entry::Occupied`
[INFO] [stdout]   --> src/day7/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::collections::hash_map::Entry::Occupied;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/day8/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day8/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day8/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Formatter`
[INFO] [stdout]  --> src/day8/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fmt::Formatter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/day8/mod.rs:71:36
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn visit_all(&self, visitor: &mut FnMut(&LicenseNode) ) {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&LicenseNode)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day9/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day9/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day9/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day10/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day10/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day10/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day11/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day11/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day11/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day12/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day12/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day12/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day13/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day13/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day13/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day14/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day14/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day14/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day15/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day15/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day15/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day16/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day16/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day16/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day17/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day17/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day17/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day18/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day18/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day18/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day19/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day19/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day19/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day20/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day20/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day20/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day21/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day21/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day21/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day22/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day22/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day22/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day23/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day23/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day23/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day24/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day24/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day24/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseIntError`
[INFO] [stdout]  --> src/day25/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::ParseIntError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/day25/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day25/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:133:6
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     write!(buf, "## {}\n",node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:136:6
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     write!(buf, "{}\n\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:139:6
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     write!(buf, "\t{}\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:142:6
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     write!(buf, "\n");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:144:6
[INFO] [stdout]     |
[INFO] [stdout] 144 |                     write!(buf, "\n");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:147:6
[INFO] [stdout]     |
[INFO] [stdout] 147 |                     write!(buf, "  * {}\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:150:6
[INFO] [stdout]     |
[INFO] [stdout] 150 |                     write!(buf, "\n<{}>\n", node.text());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:160:2
[INFO] [stdout]     |
[INFO] [stdout] 160 |     buf.seek(SeekFrom::Start(0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/day6/mod.rs:134:10
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]    --> src/day6/mod.rs:200:7
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let parent = 0;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `distance`
[INFO] [stdout]    --> src/day6/mod.rs:201:7
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let distance = 0;
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `step_id`
[INFO] [stdout]   --> src/day7/mod.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 |     while outline.iter().any(|(step_id, step)| {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_step_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/day7/mod.rs:124:10
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day8/mod.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_index`
[INFO] [stdout]    --> src/day8/mod.rs:102:6
[INFO] [stdout]     |
[INFO] [stdout] 102 |     for node_index in 0..*node_count {
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `meta_index`
[INFO] [stdout]    --> src/day8/mod.rs:106:6
[INFO] [stdout]     |
[INFO] [stdout] 106 |     for meta_index in 0..*meta_count {
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_meta_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day9/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day9/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day10/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day10/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day11/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day11/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day12/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day12/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day13/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day13/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day14/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day14/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day15/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day15/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day16/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day16/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day17/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day17/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day18/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day18/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day19/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day19/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day20/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day20/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day21/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day21/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day22/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day22/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day23/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day23/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day24/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day24/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day25/mod.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day25/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day6/mod.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut field = Grid::with_coordinates(&coordinates);
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/day7/mod.rs:104:16
[INFO] [stdout]     |
[INFO] [stdout] 104 |     for (step_id, mut step) in outline.iter() {
[INFO] [stdout]     |                   ----^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unoccupied`
[INFO] [stdout]   --> src/day3/mod.rs:67:2
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Unoccupied,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]    --> src/day6/mod.rs:159:2
[INFO] [stdout]     |
[INFO] [stdout] 159 |     parent: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `distance`
[INFO] [stdout]    --> src/day6/mod.rs:160:2
[INFO] [stdout]     |
[INFO] [stdout] 160 |     distance: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cells`
[INFO] [stdout]    --> src/day6/mod.rs:164:2
[INFO] [stdout]     |
[INFO] [stdout] 164 |     cells: Vec<Position>,    // voronoi input points
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AnyError`
[INFO] [stdout]    --> src/day7/mod.rs:157:2
[INFO] [stdout]     |
[INFO] [stdout] 157 |     AnyError,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `l`
[INFO] [stdout]    --> src/day8/mod.rs:116:2
[INFO] [stdout]     |
[INFO] [stdout] 116 |     l: &'a LicenseNode,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `index`
[INFO] [stdout]    --> src/day8/mod.rs:117:2
[INFO] [stdout]     |
[INFO] [stdout] 117 |     index: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]    --> src/day8/mod.rs:137:2
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Error,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minus`
[INFO] [stdout]   --> src/day25/mod.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn minus(&self, b: &Point4d) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `distance`
[INFO] [stdout]   --> src/day25/mod.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn distance(a: i32, b: i32) -> i32{
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/day7/mod.rs:205:4
[INFO] [stdout]     |
[INFO] [stdout] 205 |             write!(f, "{:?}:[", self.status);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/day7/mod.rs:207:5
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 write!(f, "{},", step);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/day7/mod.rs:209:4
[INFO] [stdout]     |
[INFO] [stdout] 209 |             write!(f, "]");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/day7/mod.rs:211:4
[INFO] [stdout]     |
[INFO] [stdout] 211 |             write!(f, "{:?}", self.status);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 117 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.19s
[INFO] running `Command { std: "docker" "inspect" "6ae89d54fb34a30f4af1ca41ebca42254eeb7c1a54e9779ebf60ab192bb68aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ae89d54fb34a30f4af1ca41ebca42254eeb7c1a54e9779ebf60ab192bb68aa5", kill_on_drop: false }`
[INFO] [stdout] 6ae89d54fb34a30f4af1ca41ebca42254eeb7c1a54e9779ebf60ab192bb68aa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ef1a0dfa27b2c8e8b63891d36ceb859e2a883581cd6beeb18056dc29ab27490
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7ef1a0dfa27b2c8e8b63891d36ceb859e2a883581cd6beeb18056dc29ab27490", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Attr`, `Class`
[INFO] [stderr]   --> src/lib.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 | use select::predicate::{Predicate, Attr, Class, Name};
[INFO] [stderr]    |                                    ^^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:133:6
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     write!(buf, "## {}\n",node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:136:6
[INFO] [stderr]     |
[INFO] [stderr] 136 |                     write!(buf, "{}\n\n", node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:139:6
[INFO] [stderr]     |
[INFO] [stderr] 139 |                     write!(buf, "\t{}\n", node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:142:6
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     write!(buf, "\n");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:144:6
[INFO] [stderr]     |
[INFO] [stderr] 144 |                     write!(buf, "\n");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:147:6
[INFO] [stderr]     |
[INFO] [stderr] 147 |                     write!(buf, "  * {}\n", node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:150:6
[INFO] [stderr]     |
[INFO] [stderr] 150 |                     write!(buf, "\n<{}>\n", node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:160:2
[INFO] [stderr]     |
[INFO] [stderr] 160 |     buf.seek(SeekFrom::Start(0));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Attr`, `Class`
[INFO] [stderr]   --> src/lib.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 | use select::predicate::{Predicate, Attr, Class, Name};
[INFO] [stderr]    |                                    ^^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:133:6
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     write!(buf, "## {}\n",node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:136:6
[INFO] [stderr]     |
[INFO] [stderr] 136 |                     write!(buf, "{}\n\n", node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:139:6
[INFO] [stderr]     |
[INFO] [stderr] 139 |                     write!(buf, "\t{}\n", node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:142:6
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     write!(buf, "\n");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:144:6
[INFO] [stderr]     |
[INFO] [stderr] 144 |                     write!(buf, "\n");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:147:6
[INFO] [stderr]     |
[INFO] [stderr] 147 |                     write!(buf, "  * {}\n", node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:150:6
[INFO] [stderr]     |
[INFO] [stderr] 150 |                     write!(buf, "\n<{}>\n", node.text());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:160:2
[INFO] [stderr]     |
[INFO] [stderr] 160 |     buf.seek(SeekFrom::Start(0));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/day6/mod.rs:117:12
[INFO] [stderr]     |
[INFO] [stderr] 117 |     } else if (distance == shortest_distance) {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day7/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::hash_map::Entry::Occupied`
[INFO] [stderr]   --> src/day7/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::collections::hash_map::Entry::Occupied;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/day8/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day8/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day8/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Formatter`
[INFO] [stderr]  --> src/day8/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::fmt::Formatter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day8/mod.rs:71:36
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn visit_all(&self, visitor: &mut FnMut(&LicenseNode) ) {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&LicenseNode)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day9/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day9/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day9/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day10/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day10/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day10/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day11/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day11/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day11/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day12/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day12/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day12/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day13/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day13/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day13/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day14/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day14/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day14/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day15/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day15/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day15/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day16/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day16/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day16/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day17/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day17/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day17/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day18/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day18/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day18/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day19/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day19/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day19/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day20/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day20/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day20/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day21/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day21/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day21/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day22/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day22/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day22/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day23/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day23/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day23/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day24/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day24/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day24/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/day25/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/day25/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day25/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]    --> src/day6/mod.rs:134:10
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent`
[INFO] [stderr]    --> src/day6/mod.rs:200:7
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let parent = 0;
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `distance`
[INFO] [stderr]    --> src/day6/mod.rs:201:7
[INFO] [stderr]     |
[INFO] [stderr] 201 |         let distance = 0;
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_distance`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `step_id`
[INFO] [stderr]   --> src/day7/mod.rs:69:29
[INFO] [stderr]    |
[INFO] [stderr] 69 |     while outline.iter().any(|(step_id, step)| {
[INFO] [stderr]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_step_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]    --> src/day7/mod.rs:124:10
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day8/mod.rs:60:10
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node_index`
[INFO] [stderr]    --> src/day8/mod.rs:102:6
[INFO] [stderr]     |
[INFO] [stderr] 102 |     for node_index in 0..*node_count {
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `meta_index`
[INFO] [stderr]    --> src/day8/mod.rs:106:6
[INFO] [stderr]     |
[INFO] [stderr] 106 |     for meta_index in 0..*meta_count {
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_meta_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day9/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day9/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day10/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day10/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day11/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day11/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day12/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day12/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day13/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day13/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day14/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day14/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day15/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day15/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day16/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day16/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day17/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day17/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day18/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day18/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day19/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day19/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day20/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day20/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day21/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day21/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day22/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day22/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day23/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day23/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day24/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day24/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day25/mod.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn part1(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day25/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day6/mod.rs:48:6
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut field = Grid::with_coordinates(&coordinates);
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/day7/mod.rs:104:16
[INFO] [stderr]     |
[INFO] [stderr] 104 |     for (step_id, mut step) in outline.iter() {
[INFO] [stderr]     |                   ----^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unoccupied`
[INFO] [stderr]   --> src/day3/mod.rs:67:2
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Unoccupied,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `parent`
[INFO] [stderr]    --> src/day6/mod.rs:159:2
[INFO] [stderr]     |
[INFO] [stderr] 159 |     parent: i32,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `distance`
[INFO] [stderr]    --> src/day6/mod.rs:160:2
[INFO] [stderr]     |
[INFO] [stderr] 160 |     distance: i32,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cells`
[INFO] [stderr]    --> src/day6/mod.rs:164:2
[INFO] [stderr]     |
[INFO] [stderr] 164 |     cells: Vec<Position>,    // voronoi input points
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AnyError`
[INFO] [stderr]    --> src/day7/mod.rs:157:2
[INFO] [stderr]     |
[INFO] [stderr] 157 |     AnyError,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `l`
[INFO] [stderr]    --> src/day8/mod.rs:116:2
[INFO] [stderr]     |
[INFO] [stderr] 116 |     l: &'a LicenseNode,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `index`
[INFO] [stderr]    --> src/day8/mod.rs:117:2
[INFO] [stderr]     |
[INFO] [stderr] 117 |     index: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]    --> src/day8/mod.rs:137:2
[INFO] [stderr]     |
[INFO] [stderr] 137 |     Error,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minus`
[INFO] [stderr]   --> src/day25/mod.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn minus(&self, b: &Point4d) -> i32 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `distance`
[INFO] [stderr]   --> src/day25/mod.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn distance(a: i32, b: i32) -> i32{
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/day7/mod.rs:205:4
[INFO] [stderr]     |
[INFO] [stderr] 205 |             write!(f, "{:?}:[", self.status);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/day7/mod.rs:207:5
[INFO] [stderr]     |
[INFO] [stderr] 207 |                 write!(f, "{},", step);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/day7/mod.rs:209:4
[INFO] [stderr]     |
[INFO] [stderr] 209 |             write!(f, "]");
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/day7/mod.rs:211:4
[INFO] [stderr]     |
[INFO] [stderr] 211 |             write!(f, "{:?}", self.status);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 117 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/aoc2018-ea1e1eb788e225b1
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/aoc2018-11f92827c6edc74b
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests aoc2018
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ef1a0dfa27b2c8e8b63891d36ceb859e2a883581cd6beeb18056dc29ab27490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef1a0dfa27b2c8e8b63891d36ceb859e2a883581cd6beeb18056dc29ab27490", kill_on_drop: false }`
[INFO] [stdout] 7ef1a0dfa27b2c8e8b63891d36ceb859e2a883581cd6beeb18056dc29ab27490
