[INFO] cloning repository https://github.com/reedspool/aoc-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reedspool/aoc-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freedspool%2Faoc-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freedspool%2Faoc-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b3fc2040da0d841d24befe435b32b02b1814941
[INFO] checking reedspool/aoc-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freedspool%2Faoc-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/reedspool/aoc-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/reedspool/aoc-rust
[INFO] finished tweaking git repo https://github.com/reedspool/aoc-rust
[INFO] tweaked toml for git repo https://github.com/reedspool/aoc-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/reedspool/aoc-rust 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d71ea4f349504143535ad6170322f7374ee33a698ce8fbdb58993fe57db5e193
[INFO] running `Command { std: "docker" "start" "-a" "d71ea4f349504143535ad6170322f7374ee33a698ce8fbdb58993fe57db5e193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d71ea4f349504143535ad6170322f7374ee33a698ce8fbdb58993fe57db5e193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d71ea4f349504143535ad6170322f7374ee33a698ce8fbdb58993fe57db5e193", kill_on_drop: false }`
[INFO] [stdout] d71ea4f349504143535ad6170322f7374ee33a698ce8fbdb58993fe57db5e193
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08a897c99e99560fe4823b55509fb0753c7653ba40e026380ee5dc116aa562d2
[INFO] running `Command { std: "docker" "start" "-a" "08a897c99e99560fe4823b55509fb0753c7653ba40e026380ee5dc116aa562d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.78
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bumpalo v3.8.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.78
[INFO] [stderr]     Checking rust-advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `OpCode`
[INFO] [stdout]  --> src/intcode_interpreter.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::intcode_interpreter::operation::{OpCode, Operation};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 78 +                 let output_location = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:89:21
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 89 +                 let output = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/intcode_interpreter/operation.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |     ) -> (i32) {
[INFO] [stdout]     |          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 -     ) -> (i32) {
[INFO] [stdout] 153 +     ) -> i32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpCode`
[INFO] [stdout]  --> src/intcode_interpreter.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::intcode_interpreter::operation::{OpCode, Operation};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpCode`
[INFO] [stdout]  --> src/intcode_interpreter.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::intcode_interpreter::operation::{OpCode, Operation};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 78 +                 let output_location = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:89:21
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 89 +                 let output = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/intcode_interpreter/operation.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |     ) -> (i32) {
[INFO] [stdout]     |          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 -     ) -> (i32) {
[INFO] [stdout] 153 +     ) -> i32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `directions` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum directions {
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `Directions`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     forward,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     down
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/aoc_2021/day_4.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpCode`
[INFO] [stdout]  --> src/intcode_interpreter.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::intcode_interpreter::operation::{OpCode, Operation};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 78 +                 let output_location = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:89:21
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 89 +                 let output = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/intcode_interpreter/operation.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |     ) -> (i32) {
[INFO] [stdout]     |          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 -     ) -> (i32) {
[INFO] [stdout] 153 +     ) -> i32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/aoc_2021/day_9.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stdout]  --> src/aoc_2021/day_10.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/aoc_2021/day_12.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/aoc_2021/day_12.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |         if (infinite_loop_trap == 0) {
[INFO] [stdout]    |            ^                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         if (infinite_loop_trap == 0) {
[INFO] [stdout] 71 +         if infinite_loop_trap == 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 78 +                 let output_location = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:89:21
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 89 +                 let output = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/intcode_interpreter/operation.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |     ) -> (i32) {
[INFO] [stdout]     |          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 -     ) -> (i32) {
[INFO] [stdout] 153 +     ) -> i32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::advent_utilities::read_input`
[INFO] [stdout]   --> src/aoc_2015/day_1.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     use crate::advent_utilities::read_input;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `directions` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum directions {
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `Directions`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     forward,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     down
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/aoc_2021/day_4.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/aoc_2021/day_9.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stdout]  --> src/aoc_2021/day_10.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/aoc_2021/day_12.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/aoc_2021/day_12.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |         if (infinite_loop_trap == 0) {
[INFO] [stdout]    |            ^                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         if (infinite_loop_trap == 0) {
[INFO] [stdout] 71 +         if infinite_loop_trap == 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output_location`
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut program = Program::parse(input);
[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: unused variable: `output_location`
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/intcode_interpreter.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let mut program = Program::parse("4,0,99");
[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/intcode_interpreter.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut program = Program::parse("1102,4,3,0,99");
[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/intcode_interpreter.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let mut program = Program::parse("1002,4,3,0,99");
[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/intcode_interpreter.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let mut program = Program::parse("102,4,3,0,99");
[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/lib.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut program = Program::parse(input);
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]  --> src/aoc_2021/day_4.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::BufRead;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output_location`
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_string`
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut current_string: &str;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut current_string = &current.to_string();
[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: unused variable: `current_string`
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut current_string: &str;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut current_string = &current.to_string();
[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/aoc_2021/day_3.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut num_bits = lines[0].len();
[INFO] [stdout]   |         ----^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:157:10
[INFO] [stdout]     |
[INFO] [stdout] 157 |     for (index, byte) in oxygen_rating_candidates[0].as_bytes().iter().enumerate() {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:166:10
[INFO] [stdout]     |
[INFO] [stdout] 166 |     for (index, byte) in co2_rating_candidates[0].as_bytes().iter().enumerate() {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_3.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut lines = input.trim().split("\n");
[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/aoc_2021/day_3.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut lines_vec = lines.clone().collect::<Vec<&str>>();
[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/aoc_2021/day_3.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut counts = count_it(lines_vec);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newborn`
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         for newborn in 0..reproducing {
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newborn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     for day in 0..days {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_day`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut fish : Vec<usize> = input.trim().split(",").map(|f| f.parse().unwrap()).collect();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]   --> src/aoc_2021/day_7.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let max = xs.iter().max().unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_7.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut median;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side`
[INFO] [stdout]   --> src/aoc_2021/day_8.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |     for (left_side, right_side, all_digits) in &parts {
[INFO] [stdout]    |          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]  --> src/aoc_2021/day_4.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::BufRead;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output_location`
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/aoc_2021/day_9.rs:148:25
[INFO] [stdout]     |
[INFO] [stdout] 148 |                     let mut top_basin = basins.get_mut(top_basin_index).unwrap();
[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/aoc_2021/day_9.rs:158:25
[INFO] [stdout]     |
[INFO] [stdout] 158 |                     let mut left_basin = basins.get_mut(left_basin_index).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unknown`
[INFO] [stdout]   --> src/aoc_2021/day_10.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 unknown => panic!(),
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unknown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unknown`
[INFO] [stdout]   --> src/aoc_2021/day_10.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     unknown => panic!(),
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unknown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 71 |     for (point, value) in map.iter_mut() {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/intcode_interpreter.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let mut program = Program::parse("4,0,99");
[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/intcode_interpreter.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut program = Program::parse("1102,4,3,0,99");
[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/intcode_interpreter.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let mut program = Program::parse("1002,4,3,0,99");
[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/intcode_interpreter.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let mut program = Program::parse("102,4,3,0,99");
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `START` is never used
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const START: i32 = 271973;
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `END` is never used
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const END: i32 = 785961;
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_1` is never used
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn part_1() -> i32 {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_2` is never used
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn part_2() -> i32 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains_pairs` is never used
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn contains_pairs(value: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains_pairs_no_triples` is never used
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn contains_pairs_no_triples(value: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `next_decrease` is never used
[INFO] [stdout]    --> src/aoc_2019/day_4.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn next_decrease(value: &str) -> Option<(usize, u8)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_next_increase` is never used
[INFO] [stdout]    --> src/aoc_2019/day_4.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn find_next_increase(value: &str, place: (usize, u8)) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start` and `end` are never read
[INFO] [stdout]  --> src/aoc_2021/day_12.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cave {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 5 |     big: bool,
[INFO] [stdout] 6 |     start: bool,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     end: bool,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cave` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/aoc_2021/day_3.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 |     while index >= 0 {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:105:11
[INFO] [stdout]     |
[INFO] [stdout] 105 |     while index >= 0 {
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stepX` should have a snake case name
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let stepX: i32 = match line.beg.x < line.end.x {
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `step_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stepY` should have a snake case name
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |         let stepY: i32 = match line.beg.y < line.end.y {
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `step_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     input.trim().split("\n").map(|line| {
[INFO] [stdout] 14 | |         line.trim().chars().map(|energy| {
[INFO] [stdout] 15 | |
[INFO] [stdout] 16 | |             let energy = energy.to_string().parse::<u8>().unwrap();
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         y += 1;
[INFO] [stdout] 25 | |     }).collect::<()>();
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let _ = input.trim().split("\n").map(|line| {
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | /         line.trim().chars().map(|energy| {
[INFO] [stdout] 15 | |
[INFO] [stdout] 16 | |             let energy = energy.to_string().parse::<u8>().unwrap();
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |             x += 1;
[INFO] [stdout] 21 | |         }).collect::<()>();
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let _ = line.trim().chars().map(|energy| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 52 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_string`
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut current_string: &str;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut current_string = &current.to_string();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_string`
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut current_string: &str;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut current_string = &current.to_string();
[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/aoc_2021/day_3.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut num_bits = lines[0].len();
[INFO] [stdout]   |         ----^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:157:10
[INFO] [stdout]     |
[INFO] [stdout] 157 |     for (index, byte) in oxygen_rating_candidates[0].as_bytes().iter().enumerate() {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:166:10
[INFO] [stdout]     |
[INFO] [stdout] 166 |     for (index, byte) in co2_rating_candidates[0].as_bytes().iter().enumerate() {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_3.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut lines = input.trim().split("\n");
[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/aoc_2021/day_3.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut lines_vec = lines.clone().collect::<Vec<&str>>();
[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/aoc_2021/day_3.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut counts = count_it(lines_vec);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:346:13
[INFO] [stdout]     |
[INFO] [stdout] 346 |         for i in 1..=1 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newborn`
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         for newborn in 0..reproducing {
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newborn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     for day in 0..days {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_day`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut fish : Vec<usize> = input.trim().split(",").map(|f| f.parse().unwrap()).collect();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]   --> src/aoc_2021/day_7.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let max = xs.iter().max().unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_7.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut median;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side`
[INFO] [stdout]   --> src/aoc_2021/day_8.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |     for (left_side, right_side, all_digits) in &parts {
[INFO] [stdout]    |          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/aoc_2021/day_9.rs:148:25
[INFO] [stdout]     |
[INFO] [stdout] 148 |                     let mut top_basin = basins.get_mut(top_basin_index).unwrap();
[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/aoc_2021/day_9.rs:158:25
[INFO] [stdout]     |
[INFO] [stdout] 158 |                     let mut left_basin = basins.get_mut(left_basin_index).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unknown`
[INFO] [stdout]   --> src/aoc_2021/day_10.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 unknown => panic!(),
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unknown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unknown`
[INFO] [stdout]   --> src/aoc_2021/day_10.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     unknown => panic!(),
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unknown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 71 |     for (point, value) in map.iter_mut() {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_part_2` is never used
[INFO] [stdout]   --> src/aoc_2019/day_2.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn test_part_2() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start` and `end` are never read
[INFO] [stdout]  --> src/aoc_2021/day_12.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cave {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 5 |     big: bool,
[INFO] [stdout] 6 |     start: bool,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     end: bool,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cave` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/aoc_2021/day_3.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 |     while index >= 0 {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:105:11
[INFO] [stdout]     |
[INFO] [stdout] 105 |     while index >= 0 {
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stepX` should have a snake case name
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let stepX: i32 = match line.beg.x < line.end.x {
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `step_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stepY` should have a snake case name
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |         let stepY: i32 = match line.beg.y < line.end.y {
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `step_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     input.trim().split("\n").map(|line| {
[INFO] [stdout] 14 | |         line.trim().chars().map(|energy| {
[INFO] [stdout] 15 | |
[INFO] [stdout] 16 | |             let energy = energy.to_string().parse::<u8>().unwrap();
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         y += 1;
[INFO] [stdout] 25 | |     }).collect::<()>();
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let _ = input.trim().split("\n").map(|line| {
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | /         line.trim().chars().map(|energy| {
[INFO] [stdout] 15 | |
[INFO] [stdout] 16 | |             let energy = energy.to_string().parse::<u8>().unwrap();
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |             x += 1;
[INFO] [stdout] 21 | |         }).collect::<()>();
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let _ = line.trim().chars().map(|energy| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 49 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.86s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.78
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "08a897c99e99560fe4823b55509fb0753c7653ba40e026380ee5dc116aa562d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08a897c99e99560fe4823b55509fb0753c7653ba40e026380ee5dc116aa562d2", kill_on_drop: false }`
[INFO] [stdout] 08a897c99e99560fe4823b55509fb0753c7653ba40e026380ee5dc116aa562d2
[INFO] checking reedspool/aoc-rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freedspool%2Faoc-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/reedspool/aoc-rust on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/reedspool/aoc-rust
[INFO] finished tweaking git repo https://github.com/reedspool/aoc-rust
[INFO] tweaked toml for git repo https://github.com/reedspool/aoc-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/reedspool/aoc-rust 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef854e59dc02c3bacbd86e7ead2a06fcd80ff947aeb166ee8158de2f520ff9af
[INFO] running `Command { std: "docker" "start" "-a" "ef854e59dc02c3bacbd86e7ead2a06fcd80ff947aeb166ee8158de2f520ff9af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef854e59dc02c3bacbd86e7ead2a06fcd80ff947aeb166ee8158de2f520ff9af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef854e59dc02c3bacbd86e7ead2a06fcd80ff947aeb166ee8158de2f520ff9af", kill_on_drop: false }`
[INFO] [stdout] ef854e59dc02c3bacbd86e7ead2a06fcd80ff947aeb166ee8158de2f520ff9af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf452c138169764effaba62fb3df3828add9793445e28172864eacb644a00518
[INFO] running `Command { std: "docker" "start" "-a" "bf452c138169764effaba62fb3df3828add9793445e28172864eacb644a00518", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.78
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bumpalo v3.8.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.78
[INFO] [stderr]     Checking rust-advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `OpCode`
[INFO] [stdout]  --> src/intcode_interpreter.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::intcode_interpreter::operation::{OpCode, Operation};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 78 +                 let output_location = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpCode`
[INFO] [stdout]  --> src/intcode_interpreter.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::intcode_interpreter::operation::{OpCode, Operation};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 78 +                 let output_location = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:89:21
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 89 +                 let output = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/intcode_interpreter/operation.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |     ) -> (i32) {
[INFO] [stdout]     |          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 -     ) -> (i32) {
[INFO] [stdout] 153 +     ) -> i32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpCode`
[INFO] [stdout]  --> src/intcode_interpreter.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::intcode_interpreter::operation::{OpCode, Operation};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:89:21
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 89 +                 let output = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/intcode_interpreter/operation.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |     ) -> (i32) {
[INFO] [stdout]     |          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 -     ) -> (i32) {
[INFO] [stdout] 153 +     ) -> i32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 78 +                 let output_location = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:89:21
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 89 +                 let output = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/intcode_interpreter/operation.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |     ) -> (i32) {
[INFO] [stdout]     |          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 -     ) -> (i32) {
[INFO] [stdout] 153 +     ) -> i32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::advent_utilities::read_input`
[INFO] [stdout]   --> src/aoc_2015/day_1.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     use crate::advent_utilities::read_input;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `directions` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum directions {
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `Directions`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     forward,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     down
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/aoc_2021/day_4.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/aoc_2021/day_9.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stdout]  --> src/aoc_2021/day_10.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/aoc_2021/day_12.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/aoc_2021/day_12.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |         if (infinite_loop_trap == 0) {
[INFO] [stdout]    |            ^                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         if (infinite_loop_trap == 0) {
[INFO] [stdout] 71 +         if infinite_loop_trap == 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpCode`
[INFO] [stdout]  --> src/intcode_interpreter.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::intcode_interpreter::operation::{OpCode, Operation};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 78 +                 let output_location = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:89:21
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -                 let (output) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout] 89 +                 let output = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/intcode_interpreter/operation.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |     ) -> (i32) {
[INFO] [stdout]     |          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 -     ) -> (i32) {
[INFO] [stdout] 153 +     ) -> i32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `directions` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum directions {
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `Directions`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     forward,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]  --> src/aoc_2021/day_2.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     down
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/aoc_2021/day_4.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/aoc_2021/day_9.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stdout]  --> src/aoc_2021/day_10.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/aoc_2021/day_12.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/aoc_2021/day_12.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |         if (infinite_loop_trap == 0) {
[INFO] [stdout]    |            ^                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         if (infinite_loop_trap == 0) {
[INFO] [stdout] 71 +         if infinite_loop_trap == 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output_location`
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut program = Program::parse(input);
[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: unused variable: `output_location`
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/intcode_interpreter.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let mut program = Program::parse("4,0,99");
[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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/intcode_interpreter.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut program = Program::parse("1102,4,3,0,99");
[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/intcode_interpreter.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let mut program = Program::parse("1002,4,3,0,99");
[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/intcode_interpreter.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let mut program = Program::parse("102,4,3,0,99");
[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/lib.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut program = Program::parse(input);
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]  --> src/aoc_2021/day_4.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::BufRead;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output_location`
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_string`
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut current_string: &str;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut current_string = &current.to_string();
[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: unused variable: `current_string`
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut current_string: &str;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut current_string = &current.to_string();
[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/aoc_2021/day_3.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut num_bits = lines[0].len();
[INFO] [stdout]   |         ----^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:157:10
[INFO] [stdout]     |
[INFO] [stdout] 157 |     for (index, byte) in oxygen_rating_candidates[0].as_bytes().iter().enumerate() {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:166:10
[INFO] [stdout]     |
[INFO] [stdout] 166 |     for (index, byte) in co2_rating_candidates[0].as_bytes().iter().enumerate() {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_3.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut lines = input.trim().split("\n");
[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/aoc_2021/day_3.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut lines_vec = lines.clone().collect::<Vec<&str>>();
[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/aoc_2021/day_3.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut counts = count_it(lines_vec);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newborn`
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         for newborn in 0..reproducing {
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newborn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     for day in 0..days {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_day`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut fish : Vec<usize> = input.trim().split(",").map(|f| f.parse().unwrap()).collect();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]   --> src/aoc_2021/day_7.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let max = xs.iter().max().unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]  --> src/aoc_2021/day_4.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::BufRead;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_7.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut median;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side`
[INFO] [stdout]   --> src/aoc_2021/day_8.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |     for (left_side, right_side, all_digits) in &parts {
[INFO] [stdout]    |          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output_location`
[INFO] [stdout]   --> src/intcode_interpreter/operation.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let (output_location) = Operation::get_stuff_for_basic_unary_op(
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/intcode_interpreter.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let mut program = Program::parse("4,0,99");
[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/intcode_interpreter.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut program = Program::parse("1102,4,3,0,99");
[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/intcode_interpreter.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let mut program = Program::parse("1002,4,3,0,99");
[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/intcode_interpreter.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let mut program = Program::parse("102,4,3,0,99");
[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/aoc_2021/day_9.rs:148:25
[INFO] [stdout]     |
[INFO] [stdout] 148 |                     let mut top_basin = basins.get_mut(top_basin_index).unwrap();
[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/aoc_2021/day_9.rs:158:25
[INFO] [stdout]     |
[INFO] [stdout] 158 |                     let mut left_basin = basins.get_mut(left_basin_index).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unknown`
[INFO] [stdout]   --> src/aoc_2021/day_10.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 unknown => panic!(),
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unknown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unknown`
[INFO] [stdout]   --> src/aoc_2021/day_10.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     unknown => panic!(),
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unknown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 71 |     for (point, value) in map.iter_mut() {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `START` is never used
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const START: i32 = 271973;
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `END` is never used
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const END: i32 = 785961;
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_1` is never used
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn part_1() -> i32 {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_2` is never used
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn part_2() -> i32 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains_pairs` is never used
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn contains_pairs(value: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains_pairs_no_triples` is never used
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn contains_pairs_no_triples(value: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `next_decrease` is never used
[INFO] [stdout]    --> src/aoc_2019/day_4.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn next_decrease(value: &str) -> Option<(usize, u8)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_next_increase` is never used
[INFO] [stdout]    --> src/aoc_2019/day_4.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn find_next_increase(value: &str, place: (usize, u8)) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start` and `end` are never read
[INFO] [stdout]  --> src/aoc_2021/day_12.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cave {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 5 |     big: bool,
[INFO] [stdout] 6 |     start: bool,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     end: bool,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cave` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/aoc_2021/day_3.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 |     while index >= 0 {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_string`
[INFO] [stdout]  --> src/aoc_2019/day_4.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut current_string: &str;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:105:11
[INFO] [stdout]     |
[INFO] [stdout] 105 |     while index >= 0 {
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut current_string = &current.to_string();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stepX` should have a snake case name
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let stepX: i32 = match line.beg.x < line.end.x {
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `step_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_string`
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut current_string: &str;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stepY` should have a snake case name
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |         let stepY: i32 = match line.beg.y < line.end.y {
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `step_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019/day_4.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut current_string = &current.to_string();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     input.trim().split("\n").map(|line| {
[INFO] [stdout] 14 | |         line.trim().chars().map(|energy| {
[INFO] [stdout] 15 | |
[INFO] [stdout] 16 | |             let energy = energy.to_string().parse::<u8>().unwrap();
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         y += 1;
[INFO] [stdout] 25 | |     }).collect::<()>();
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let _ = input.trim().split("\n").map(|line| {
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | /         line.trim().chars().map(|energy| {
[INFO] [stdout] 15 | |
[INFO] [stdout] 16 | |             let energy = energy.to_string().parse::<u8>().unwrap();
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |             x += 1;
[INFO] [stdout] 21 | |         }).collect::<()>();
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let _ = line.trim().chars().map(|energy| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 52 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/aoc_2021/day_3.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut num_bits = lines[0].len();
[INFO] [stdout]   |         ----^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:157:10
[INFO] [stdout]     |
[INFO] [stdout] 157 |     for (index, byte) in oxygen_rating_candidates[0].as_bytes().iter().enumerate() {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:166:10
[INFO] [stdout]     |
[INFO] [stdout] 166 |     for (index, byte) in co2_rating_candidates[0].as_bytes().iter().enumerate() {
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_3.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut lines = input.trim().split("\n");
[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/aoc_2021/day_3.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut lines_vec = lines.clone().collect::<Vec<&str>>();
[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/aoc_2021/day_3.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut counts = count_it(lines_vec);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:346:13
[INFO] [stdout]     |
[INFO] [stdout] 346 |         for i in 1..=1 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newborn`
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         for newborn in 0..reproducing {
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newborn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     for day in 0..days {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_day`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_6.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut fish : Vec<usize> = input.trim().split(",").map(|f| f.parse().unwrap()).collect();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]   --> src/aoc_2021/day_7.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let max = xs.iter().max().unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2021/day_7.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut median;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side`
[INFO] [stdout]   --> src/aoc_2021/day_8.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |     for (left_side, right_side, all_digits) in &parts {
[INFO] [stdout]    |          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/aoc_2021/day_9.rs:148:25
[INFO] [stdout]     |
[INFO] [stdout] 148 |                     let mut top_basin = basins.get_mut(top_basin_index).unwrap();
[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/aoc_2021/day_9.rs:158:25
[INFO] [stdout]     |
[INFO] [stdout] 158 |                     let mut left_basin = basins.get_mut(left_basin_index).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unknown`
[INFO] [stdout]   --> src/aoc_2021/day_10.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 unknown => panic!(),
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unknown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unknown`
[INFO] [stdout]   --> src/aoc_2021/day_10.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     unknown => panic!(),
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unknown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 71 |     for (point, value) in map.iter_mut() {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_part_2` is never used
[INFO] [stdout]   --> src/aoc_2019/day_2.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn test_part_2() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start` and `end` are never read
[INFO] [stdout]  --> src/aoc_2021/day_12.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cave {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 5 |     big: bool,
[INFO] [stdout] 6 |     start: bool,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     end: bool,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cave` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/aoc_2021/day_3.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 |     while index >= 0 {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/aoc_2021/day_3.rs:105:11
[INFO] [stdout]     |
[INFO] [stdout] 105 |     while index >= 0 {
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stepX` should have a snake case name
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let stepX: i32 = match line.beg.x < line.end.x {
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `step_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stepY` should have a snake case name
[INFO] [stdout]    --> src/aoc_2021/day_5.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |         let stepY: i32 = match line.beg.y < line.end.y {
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `step_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     input.trim().split("\n").map(|line| {
[INFO] [stdout] 14 | |         line.trim().chars().map(|energy| {
[INFO] [stdout] 15 | |
[INFO] [stdout] 16 | |             let energy = energy.to_string().parse::<u8>().unwrap();
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         y += 1;
[INFO] [stdout] 25 | |     }).collect::<()>();
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let _ = input.trim().split("\n").map(|line| {
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/aoc_2021/day_11.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | /         line.trim().chars().map(|energy| {
[INFO] [stdout] 15 | |
[INFO] [stdout] 16 | |             let energy = energy.to_string().parse::<u8>().unwrap();
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |             x += 1;
[INFO] [stdout] 21 | |         }).collect::<()>();
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let _ = line.trim().chars().map(|energy| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 49 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.22s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.78
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "bf452c138169764effaba62fb3df3828add9793445e28172864eacb644a00518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf452c138169764effaba62fb3df3828add9793445e28172864eacb644a00518", kill_on_drop: false }`
[INFO] [stdout] bf452c138169764effaba62fb3df3828add9793445e28172864eacb644a00518