[INFO] cloning repository https://github.com/kooryan/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/kooryan/Advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkooryan%2FAdvent-of-code-2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkooryan%2FAdvent-of-code-2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c64191aa5d636399f513daee600f67f21a7aa34
[INFO] checking kooryan/Advent-of-code-2019 against 1.95.0-beta.7 for beta-1.95-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkooryan%2FAdvent-of-code-2019" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kooryan/Advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/kooryan/Advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/kooryan/Advent-of-code-2019 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kooryan/Advent-of-code-2019 on toolchain 1.95.0-beta.7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kooryan/Advent-of-code-2019 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" "+1.95.0-beta.7" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking kooryan/Advent-of-code-2019 against 1.95.0-beta.7 for beta-1.95-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkooryan%2FAdvent-of-code-2019" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kooryan/Advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/kooryan/Advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/kooryan/Advent-of-code-2019 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kooryan/Advent-of-code-2019 on toolchain 1.95.0-beta.7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kooryan/Advent-of-code-2019 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" "+1.95.0-beta.7" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63f4d27601dd89f0a4111da94c396ff4ba7a47b505dea465891016e7b01c26ca
[INFO] running `Command { std: "docker" "start" "-a" "63f4d27601dd89f0a4111da94c396ff4ba7a47b505dea465891016e7b01c26ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63f4d27601dd89f0a4111da94c396ff4ba7a47b505dea465891016e7b01c26ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63f4d27601dd89f0a4111da94c396ff4ba7a47b505dea465891016e7b01c26ca", kill_on_drop: false }`
[INFO] [stdout] 63f4d27601dd89f0a4111da94c396ff4ba7a47b505dea465891016e7b01c26ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a73e548e0616ed28d0197bfed7a2fded6439c19a1f1953a856b041906ff6fad
[INFO] running `Command { std: "docker" "start" "-a" "9a73e548e0616ed28d0197bfed7a2fded6439c19a1f1953a856b041906ff6fad", kill_on_drop: false }`
[INFO] [stderr]     Checking Advent-of-code-2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/Day1/day1.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::{File, read_to_string};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/Day3/day3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitAnd` and `Sub`
[INFO] [stdout]  --> src/Day4/day4.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Sub, BitAnd};
[INFO] [stdout]   |                ^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/Day1/day1.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::{File, read_to_string};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime` and `UNIX_EPOCH`
[INFO] [stdout]  --> src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::{SystemTime, UNIX_EPOCH, Instant};
[INFO] [stdout]   |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/Day3/day3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitAnd` and `Sub`
[INFO] [stdout]  --> src/Day4/day4.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Sub, BitAnd};
[INFO] [stdout]   |                ^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime` and `UNIX_EPOCH`
[INFO] [stdout]  --> src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::{SystemTime, UNIX_EPOCH, Instant};
[INFO] [stdout]   |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/Day2/day2.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut intcode: Vec<u32> = file
[INFO] [stdout]   |         ----^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/Day2/day2.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut intcode: Vec<u32> = file
[INFO] [stdout]   |         ----^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day2/day2.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn instructions(mut memory: Vec<u32>) -> u32 {
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day2/day2.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn instructions(mut memory: Vec<u32>) -> u32 {
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]   --> src/Day2/day2.rs:71:27
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut result: u32 = 0;
[INFO] [stdout]    |                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]   --> src/Day2/day2.rs:71:27
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut result: u32 = 0;
[INFO] [stdout]    |                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/Day3/day3.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut wires: Vec<String> = file
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut wire1: Vec<String> = wires[0].split(",").map(|s| s.parse().unwrap()).collect();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/Day3/day3.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut wires: Vec<String> = file
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut wire2: Vec<String> = wires[1].split(",").map(|s| s.parse().unwrap()).collect();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut wire1: Vec<String> = wires[0].split(",").map(|s| s.parse().unwrap()).collect();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wire1`
[INFO] [stdout]   --> src/Day3/day3.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut wire1: Vec<String> = wires[0].split(",").map(|s| s.parse().unwrap()).collect();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wire1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut wire2: Vec<String> = wires[1].split(",").map(|s| s.parse().unwrap()).collect();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wire2`
[INFO] [stdout]   --> src/Day3/day3.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut wire2: Vec<String> = wires[1].split(",").map(|s| s.parse().unwrap()).collect();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wire2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |                       ----^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |                                            ----^^^^^
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wire1`
[INFO] [stdout]   --> src/Day3/day3.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut wire1: Vec<String> = wires[0].split(",").map(|s| s.parse().unwrap()).collect();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wire1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut closestDistance = std::u32::MAX;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wire2`
[INFO] [stdout]   --> src/Day3/day3.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut wire2: Vec<String> = wires[1].split(",").map(|s| s.parse().unwrap()).collect();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wire2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wire1`
[INFO] [stdout]   --> src/Day3/day3.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wire1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |                       ----^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wire2`
[INFO] [stdout]   --> src/Day3/day3.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |                                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wire2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |                                            ----^^^^^
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `closestDistance`
[INFO] [stdout]   --> src/Day3/day3.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut closestDistance = std::u32::MAX;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_closestDistance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day3/day3.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut closestDistance = std::u32::MAX;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wire1`
[INFO] [stdout]   --> src/Day3/day3.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wire1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wire2`
[INFO] [stdout]   --> src/Day3/day3.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |                                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wire2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `closestDistance`
[INFO] [stdout]   --> src/Day3/day3.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut closestDistance = std::u32::MAX;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_closestDistance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/Day4/day4.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut pass_range: Vec<u32> = file
[INFO] [stdout]   |         ----^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/Day4/day4.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut pass_range: Vec<u32> = file
[INFO] [stdout]   |         ----^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn repeated_twice(mut num: Vec<u32>) -> bool {
[INFO] [stdout]    |                   ----^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn repeated_twice(mut num: Vec<u32>) -> bool {
[INFO] [stdout]    |                   ----^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut count = 0;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut count = 0;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/Day4/day4.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut count = 0;
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/Day4/day4.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut count = 0;
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:35:30
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn constrained_combinations (mut range: Vec<u32>) -> u32 {
[INFO] [stdout]    |                              ----^^^^^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:35:30
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn constrained_combinations (mut range: Vec<u32>) -> u32 {
[INFO] [stdout]    |                              ----^^^^^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut number = split_number(x);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut number = split_number(x);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:51:27
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn calculate_combinations(mut range: Vec<u32>) -> u32 {
[INFO] [stdout]    |                           ----^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:51:27
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn calculate_combinations(mut range: Vec<u32>) -> u32 {
[INFO] [stdout]    |                           ----^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut number = split_number(x);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Day4/day4.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut number = split_number(x);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/Day1/day1.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_module` is never used
[INFO] [stdout]   --> src/Day1/day1.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn parse_module(line: &str) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/Day2/day2.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute_program` is never used
[INFO] [stdout]   --> src/Day2/day2.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn execute_program(mut code: Vec<u32>, noun: u32, verb: u32) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `instructions` is never used
[INFO] [stdout]   --> src/Day2/day2.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn instructions(mut memory: Vec<u32>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_distance` is never used
[INFO] [stdout]   --> src/Day3/day3.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/Day4/day4.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/Day1/day1.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_module` is never used
[INFO] [stdout]   --> src/Day1/day1.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn parse_module(line: &str) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `split_number` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn split_number(n: u32) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `repeated_twice` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn repeated_twice(mut num: Vec<u32>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/Day2/day2.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute_program` is never used
[INFO] [stdout]   --> src/Day2/day2.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn execute_program(mut code: Vec<u32>, noun: u32, verb: u32) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constrained_combinations` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn constrained_combinations (mut range: Vec<u32>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `instructions` is never used
[INFO] [stdout]   --> src/Day2/day2.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn instructions(mut memory: Vec<u32>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_distance` is never used
[INFO] [stdout]   --> src/Day3/day3.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn calculate_distance(mut wire1: Vec<u32>, mut wire2: Vec<u32>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_combinations` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn calculate_combinations(mut range: Vec<u32>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/Day4/day4.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `split_number` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn split_number(n: u32) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_repeating` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn is_repeating(num: Vec<u32>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `repeated_twice` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn repeated_twice(mut num: Vec<u32>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constrained_combinations` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn constrained_combinations (mut range: Vec<u32>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_increasing` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn is_increasing(num: Vec<u32>) -> bool  {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_combinations` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn calculate_combinations(mut range: Vec<u32>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_repeating` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn is_repeating(num: Vec<u32>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Day1` should have a snake case name
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod Day1 { pub mod day1; }
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `day1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_increasing` is never used
[INFO] [stdout]   --> src/Day4/day4.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn is_increasing(num: Vec<u32>) -> bool  {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Day2` should have a snake case name
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | mod Day2 { pub mod day2; }
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `day2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Day1` should have a snake case name
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod Day1 { pub mod day1; }
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `day1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Day3` should have a snake case name
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod Day3 { pub mod day3; }
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `day3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Day2` should have a snake case name
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | mod Day2 { pub mod day2; }
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `day2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Day4` should have a snake case name
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod Day4 { pub mod day4; }
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `day4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Day3` should have a snake case name
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod Day3 { pub mod day3; }
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `day3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Day4` should have a snake case name
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod Day4 { pub mod day4; }
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `day4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `closestDistance` should have a snake case name
[INFO] [stdout]   --> src/Day3/day3.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut closestDistance = std::u32::MAX;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `closest_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `closestDistance` should have a snake case name
[INFO] [stdout]   --> src/Day3/day3.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut closestDistance = std::u32::MAX;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `closest_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "9a73e548e0616ed28d0197bfed7a2fded6439c19a1f1953a856b041906ff6fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a73e548e0616ed28d0197bfed7a2fded6439c19a1f1953a856b041906ff6fad", kill_on_drop: false }`
[INFO] [stdout] 9a73e548e0616ed28d0197bfed7a2fded6439c19a1f1953a856b041906ff6fad
