[INFO] cloning repository https://github.com/MiguelSlim/adventofcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MiguelSlim/adventofcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiguelSlim%2Fadventofcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiguelSlim%2Fadventofcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77d8d3b03d0d220e45d099084c5555ff2078460f
[INFO] checking MiguelSlim/adventofcode against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiguelSlim%2Fadventofcode" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MiguelSlim/adventofcode on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MiguelSlim/adventofcode
[INFO] finished tweaking git repo https://github.com/MiguelSlim/adventofcode
[INFO] tweaked toml for git repo https://github.com/MiguelSlim/adventofcode written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MiguelSlim/adventofcode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking MiguelSlim/adventofcode against try#80d5fe37e16a0befb4128414cb6a11d544788c0a for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiguelSlim%2Fadventofcode" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MiguelSlim/adventofcode on toolchain 80d5fe37e16a0befb4128414cb6a11d544788c0a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MiguelSlim/adventofcode
[INFO] finished tweaking git repo https://github.com/MiguelSlim/adventofcode
[INFO] tweaked toml for git repo https://github.com/MiguelSlim/adventofcode written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MiguelSlim/adventofcode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c271dcd4c469c2db671c821696fc7b978f8815417dee91f33bbd807953c5f5dd
[INFO] running `Command { std: "docker" "start" "-a" "c271dcd4c469c2db671c821696fc7b978f8815417dee91f33bbd807953c5f5dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c271dcd4c469c2db671c821696fc7b978f8815417dee91f33bbd807953c5f5dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c271dcd4c469c2db671c821696fc7b978f8815417dee91f33bbd807953c5f5dd", kill_on_drop: false }`
[INFO] [stdout] c271dcd4c469c2db671c821696fc7b978f8815417dee91f33bbd807953c5f5dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eb6244ba30c67bc268721c7d65bd1a29c916fe2c728873f516e11069c3e0406
[INFO] running `Command { std: "docker" "start" "-a" "2eb6244ba30c67bc268721c7d65bd1a29c916fe2c728873f516e11069c3e0406", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking regex v1.7.0
[INFO] [stderr]     Checking adventofcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`, `VecDeque`
[INFO] [stdout]  --> src/main.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`, `VecDeque`
[INFO] [stdout]  --> src/main.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/day_7.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/day_8.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_1::day_1_part_2`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use day_1::day_1_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_2::day_2_part_2`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use day_2::day_2_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_3::day_3_part_2`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use day_3::day_3_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_4::day_4_part_2`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use day_4::day_4_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_5::day_5_part_2`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use day_5::day_5_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `day_6_part_1`, `day_6_part_2`
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 | use day_6::{day_6_part_1, day_6_part_2};
[INFO] [stdout]    |             ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `day_7_part_1`, `day_7_part_2`
[INFO] [stdout]   --> src/main.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 | use day_7::{day_7_part_1, day_7_part_2};
[INFO] [stdout]    |             ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_8_part_1`
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | use day_8::{day_8_part_1, day_8_part_2};
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/day_7.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/day_8.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_1::day_1_part_2`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use day_1::day_1_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_2::day_2_part_2`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use day_2::day_2_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_3::day_3_part_2`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use day_3::day_3_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_4::day_4_part_2`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use day_4::day_4_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_5::day_5_part_2`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use day_5::day_5_part_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `day_6_part_1`, `day_6_part_2`
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 | use day_6::{day_6_part_1, day_6_part_2};
[INFO] [stdout]    |             ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `day_7_part_1`, `day_7_part_2`
[INFO] [stdout]   --> src/main.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 | use day_7::{day_7_part_1, day_7_part_2};
[INFO] [stdout]    |             ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day_8_part_1`
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | use day_8::{day_8_part_1, day_8_part_2};
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr_me`
[INFO] [stdout]  --> src/day_2.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let arr_me = ["X", "Y", "Z"];
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_arr_me`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/day_3.rs:26:56
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     let badge = bla.into_iter().find(|(c, a)| **a == 3).unwrap();
[INFO] [stdout]    |                                                        ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day_3.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut bla = &mut char_map;
[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/day_5.rs:12:21
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 let mut quantity = if let Some(quantity) = re.captures(&item) {
[INFO] [stdout]    |                     ----^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr_me`
[INFO] [stdout]  --> src/day_2.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let arr_me = ["X", "Y", "Z"];
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_arr_me`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]  --> src/day_7.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 |             if let Ok(item) = line {}
[INFO] [stdout]   |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/day_3.rs:26:56
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     let badge = bla.into_iter().find(|(c, a)| **a == 3).unwrap();
[INFO] [stdout]    |                                                        ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day_3.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut bla = &mut char_map;
[INFO] [stdout]   |             ----^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_1_part_2` is never used
[INFO] [stdout]  --> src/day_1.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn day_1_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_2_part_2` is never used
[INFO] [stdout]  --> src/day_2.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn day_2_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_3_part_2` is never used
[INFO] [stdout]  --> src/day_3.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn day_3_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_char_val` is never used
[INFO] [stdout]   --> src/day_3.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn get_char_val(c: char) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_4_part_2` is never used
[INFO] [stdout]  --> src/day_4.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn day_4_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_range` is never used
[INFO] [stdout]   --> src/day_4.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn get_range(range_str: &str) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_5_part_2` is never used
[INFO] [stdout]  --> src/day_5.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn day_5_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Stack` is never used
[INFO] [stdout]   --> src/day_5.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 | type Stack = VecDeque<char>;
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Stacks` is never used
[INFO] [stdout]   --> src/day_5.rs:61:6
[INFO] [stdout]    |
[INFO] [stdout] 61 | type Stacks = HashMap<usize, Stack>;
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_stacks` is never used
[INFO] [stdout]   --> src/day_5.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn get_stacks() -> Stacks {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_6_part_1` is never used
[INFO] [stdout]  --> src/day_6.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn day_6_part_1() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_6_part_2` is never used
[INFO] [stdout]   --> src/day_6.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn day_6_part_2() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_7_part_1` is never used
[INFO] [stdout]  --> src/day_7.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn day_7_part_1() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_7_part_2` is never used
[INFO] [stdout]   --> src/day_7.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn day_7_part_2() {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_8_part_1` is never used
[INFO] [stdout]  --> src/day_8.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn day_8_part_1() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_hidden` is never used
[INFO] [stdout]   --> src/day_8.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn is_hidden(grid: &TreeGrid, position: (usize, usize)) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_5.rs:12:21
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 let mut quantity = if let Some(quantity) = re.captures(&item) {
[INFO] [stdout]    |                     ----^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]  --> src/day_7.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 |             if let Ok(item) = line {}
[INFO] [stdout]   |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_1_part_2` is never used
[INFO] [stdout]  --> src/day_1.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn day_1_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_2_part_2` is never used
[INFO] [stdout]  --> src/day_2.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn day_2_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_3_part_2` is never used
[INFO] [stdout]  --> src/day_3.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn day_3_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_char_val` is never used
[INFO] [stdout]   --> src/day_3.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn get_char_val(c: char) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_4_part_2` is never used
[INFO] [stdout]  --> src/day_4.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn day_4_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_range` is never used
[INFO] [stdout]   --> src/day_4.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn get_range(range_str: &str) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_5_part_2` is never used
[INFO] [stdout]  --> src/day_5.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn day_5_part_2() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Stack` is never used
[INFO] [stdout]   --> src/day_5.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 | type Stack = VecDeque<char>;
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Stacks` is never used
[INFO] [stdout]   --> src/day_5.rs:61:6
[INFO] [stdout]    |
[INFO] [stdout] 61 | type Stacks = HashMap<usize, Stack>;
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_stacks` is never used
[INFO] [stdout]   --> src/day_5.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn get_stacks() -> Stacks {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_6_part_1` is never used
[INFO] [stdout]  --> src/day_6.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn day_6_part_1() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_6_part_2` is never used
[INFO] [stdout]   --> src/day_6.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn day_6_part_2() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_7_part_1` is never used
[INFO] [stdout]  --> src/day_7.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn day_7_part_1() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_7_part_2` is never used
[INFO] [stdout]   --> src/day_7.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn day_7_part_2() {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_8_part_1` is never used
[INFO] [stdout]  --> src/day_8.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn day_8_part_1() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_hidden` is never used
[INFO] [stdout]   --> src/day_8.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn is_hidden(grid: &TreeGrid, position: (usize, usize)) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "2eb6244ba30c67bc268721c7d65bd1a29c916fe2c728873f516e11069c3e0406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eb6244ba30c67bc268721c7d65bd1a29c916fe2c728873f516e11069c3e0406", kill_on_drop: false }`
[INFO] [stdout] 2eb6244ba30c67bc268721c7d65bd1a29c916fe2c728873f516e11069c3e0406