[INFO] cloning repository https://github.com/lislis/advent-of-code-2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lislis/advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flislis%2Fadvent-of-code-2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flislis%2Fadvent-of-code-2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c07ecd1fac23a44ee9c019104cd75a3543d57ed5
[INFO] checking lislis/advent-of-code-2019 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flislis%2Fadvent-of-code-2019" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lislis/advent-of-code-2019 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lislis/advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/lislis/advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/lislis/advent-of-code-2019 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/lislis/advent-of-code-2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d9b5ed6b3d5daab7047b9f1f9f94b05210fb247ba0d1d751978a8fff0c579c5
[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" "0d9b5ed6b3d5daab7047b9f1f9f94b05210fb247ba0d1d751978a8fff0c579c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d9b5ed6b3d5daab7047b9f1f9f94b05210fb247ba0d1d751978a8fff0c579c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9b5ed6b3d5daab7047b9f1f9f94b05210fb247ba0d1d751978a8fff0c579c5", kill_on_drop: false }`
[INFO] [stdout] 0d9b5ed6b3d5daab7047b9f1f9f94b05210fb247ba0d1d751978a8fff0c579c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f77b7142fd692906124a534c51baab46737f51aa8f7176e11dda48e269cfe44
[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" "8f77b7142fd692906124a534c51baab46737f51aa8f7176e11dda48e269cfe44", kill_on_drop: false }`
[INFO] [stderr]     Checking advent-of-code-2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/days/day04.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/days/day04.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/days/day04.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/days/day04.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/days/day03.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |    let mut cable1 = follow_cable(&cables[0]);
[INFO] [stdout]    |        ----^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file`
[INFO] [stdout]  --> src/lib/mod.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn read_file(path: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_and_parse`
[INFO] [stdout]   --> src/lib/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn read_and_parse(path: &str) -> Vec<i64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_and_parse_one_line`
[INFO] [stdout]   --> src/lib/mod.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn read_and_parse_one_line(path: &str) -> Vec<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_and_parse_cables`
[INFO] [stdout]   --> src/lib/mod.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn read_and_parse_cables(path: &str) -> Vec<Vec<(char, usize)>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `convert_to_tuples`
[INFO] [stdout]   --> src/lib/mod.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn convert_to_tuples(content: String) -> Vec<Vec<(char, usize)>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_1`
[INFO] [stdout]  --> src/days/day01.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn part_1() -> i64 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calc_fuel`
[INFO] [stdout]   --> src/days/day01.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn calc_fuel(n: i64) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calc_fuel_deps`
[INFO] [stdout]   --> src/days/day01.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn calc_fuel_deps(n: i64) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_2`
[INFO] [stdout]   --> src/days/day01.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn part_2() -> i64 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `intcode`
[INFO] [stdout]  --> src/days/day02.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn intcode(mut vec: Vec<usize>) -> Vec<usize> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_1`
[INFO] [stdout]   --> src/days/day02.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn part_1() -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_output`
[INFO] [stdout]   --> src/days/day02.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn find_output(memory: Vec<usize>, needle: usize) -> (usize, usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_2`
[INFO] [stdout]   --> src/days/day02.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn part_2() -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Inst`
[INFO] [stdout]  --> src/days/day03.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Inst = (char, usize);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Coord`
[INFO] [stdout]  --> src/days/day03.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Coord = (i64, i64);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Cable`
[INFO] [stdout]  --> src/days/day03.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Cable = HashMap<Coord, usize>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `follow_cable`
[INFO] [stdout]   --> src/days/day03.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn follow_cable(cable: &Vec<Inst>) -> Cable {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `follow_all_cables`
[INFO] [stdout]   --> src/days/day03.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn follow_all_cables(cables: Vec<Vec<Inst>>) -> HashSet<Coord> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_distances`
[INFO] [stdout]   --> src/days/day03.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn get_distances(ints: HashSet<Coord>) -> Vec<i64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_1`
[INFO] [stdout]    --> src/days/day03.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn part_1() -> i64 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `follow_cable_count_steps`
[INFO] [stdout]    --> src/days/day03.rs:121:4
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn follow_cable_count_steps(cable: &Vec<Vec<Inst>>) -> Cable {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_2`
[INFO] [stdout]    --> src/days/day03.rs:233:8
[INFO] [stdout]     |
[INFO] [stdout] 233 | pub fn part_2() -> usize {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/days/day03.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |    let mut cable1 = follow_cable(&cables[0]);
[INFO] [stdout]    |        ----^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file`
[INFO] [stdout]  --> src/lib/mod.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn read_file(path: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_and_parse`
[INFO] [stdout]   --> src/lib/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn read_and_parse(path: &str) -> Vec<i64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_and_parse_one_line`
[INFO] [stdout]   --> src/lib/mod.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn read_and_parse_one_line(path: &str) -> Vec<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_and_parse_cables`
[INFO] [stdout]   --> src/lib/mod.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn read_and_parse_cables(path: &str) -> Vec<Vec<(char, usize)>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `convert_to_tuples`
[INFO] [stdout]   --> src/lib/mod.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn convert_to_tuples(content: String) -> Vec<Vec<(char, usize)>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_1`
[INFO] [stdout]  --> src/days/day01.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn part_1() -> i64 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_2`
[INFO] [stdout]   --> src/days/day01.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn part_2() -> i64 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_1`
[INFO] [stdout]   --> src/days/day02.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn part_1() -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_output`
[INFO] [stdout]   --> src/days/day02.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn find_output(memory: Vec<usize>, needle: usize) -> (usize, usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_2`
[INFO] [stdout]   --> src/days/day02.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn part_2() -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Inst`
[INFO] [stdout]  --> src/days/day03.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Inst = (char, usize);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Coord`
[INFO] [stdout]  --> src/days/day03.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Coord = (i64, i64);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Cable`
[INFO] [stdout]  --> src/days/day03.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Cable = HashMap<Coord, usize>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `follow_cable`
[INFO] [stdout]   --> src/days/day03.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn follow_cable(cable: &Vec<Inst>) -> Cable {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `follow_all_cables`
[INFO] [stdout]   --> src/days/day03.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn follow_all_cables(cables: Vec<Vec<Inst>>) -> HashSet<Coord> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_distances`
[INFO] [stdout]   --> src/days/day03.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn get_distances(ints: HashSet<Coord>) -> Vec<i64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_1`
[INFO] [stdout]    --> src/days/day03.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn part_1() -> i64 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `follow_cable_count_steps`
[INFO] [stdout]    --> src/days/day03.rs:121:4
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn follow_cable_count_steps(cable: &Vec<Vec<Inst>>) -> Cable {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_2`
[INFO] [stdout]    --> src/days/day03.rs:233:8
[INFO] [stdout]     |
[INFO] [stdout] 233 | pub fn part_2() -> usize {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "8f77b7142fd692906124a534c51baab46737f51aa8f7176e11dda48e269cfe44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f77b7142fd692906124a534c51baab46737f51aa8f7176e11dda48e269cfe44", kill_on_drop: false }`
[INFO] [stdout] 8f77b7142fd692906124a534c51baab46737f51aa8f7176e11dda48e269cfe44