[INFO] cloning repository https://github.com/hortinstein/RustventofCode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hortinstein/RustventofCode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhortinstein%2FRustventofCode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhortinstein%2FRustventofCode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 012527ff2c3c916d00976e11a1e19eff3262dcb9
[INFO] checking hortinstein/RustventofCode against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhortinstein%2FRustventofCode" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hortinstein/RustventofCode 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/hortinstein/RustventofCode
[INFO] finished tweaking git repo https://github.com/hortinstein/RustventofCode
[INFO] tweaked toml for git repo https://github.com/hortinstein/RustventofCode written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hortinstein/RustventofCode 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aho-corasick v0.6.9
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded utf8-ranges v1.0.2
[INFO] [stderr]   Downloaded ucd-util v0.1.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.5
[INFO] [stderr]   Downloaded regex v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 73b99fe047b494e5d6b579bf5e7698c774167601b2c236d78de56d7bb77f138e
[INFO] running `Command { std: "docker" "start" "-a" "73b99fe047b494e5d6b579bf5e7698c774167601b2c236d78de56d7bb77f138e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73b99fe047b494e5d6b579bf5e7698c774167601b2c236d78de56d7bb77f138e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b99fe047b494e5d6b579bf5e7698c774167601b2c236d78de56d7bb77f138e", kill_on_drop: false }`
[INFO] [stdout] 73b99fe047b494e5d6b579bf5e7698c774167601b2c236d78de56d7bb77f138e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5d5f524b3e787c311b42be885c3aa165477cc1751379f98df9f4e6c39ad8284b
[INFO] running `Command { std: "docker" "start" "-a" "5d5f524b3e787c311b42be885c3aa165477cc1751379f98df9f4e6c39ad8284b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/src/lib/common)
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib/common/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/lib/common/src/lib.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Err(err) => {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib/common/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/lib/common/src/lib.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     use std::fs;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/lib/common/src/lib.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Err(err) => {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking aoc_day2 v0.1.0 (/opt/rustwide/workdir/src/lib/day_libs/aoc_day2)
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking aoc_day1 v0.1.0 (/opt/rustwide/workdir/src/lib/day_libs/aoc_day1)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib/day_libs/aoc_day2/src/lib.rs:5:47
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Result<T> = ::std::result::Result<T, Box<::std::error::Error>>;
[INFO] [stdout]   |                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Result<T> = ::std::result::Result<T, Box<dyn (::std::error::Error)>>;
[INFO] [stdout]   |                                               +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib/day_libs/aoc_day1/src/lib.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Result<T> = ::std::result::Result<T, Box<::std::error::Error>>;
[INFO] [stdout]   |                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Result<T> = ::std::result::Result<T, Box<dyn (::std::error::Error)>>;
[INFO] [stdout]   |                                               +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day2/src/lib.rs:41:46
[INFO] [stdout]    |
[INFO] [stdout] 41 |                         Difference::Same(ref x) => {}
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day2/src/lib.rs:50:45
[INFO] [stdout]    |
[INFO] [stdout] 50 |                         Difference::Rem(ref x) => {}
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib/day_libs/aoc_day1/src/lib.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Result<T> = ::std::result::Result<T, Box<::std::error::Error>>;
[INFO] [stdout]   |                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Result<T> = ::std::result::Result<T, Box<dyn (::std::error::Error)>>;
[INFO] [stdout]   |                                               +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day2/src/lib.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib/day_libs/aoc_day2/src/lib.rs:5:47
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Result<T> = ::std::result::Result<T, Box<::std::error::Error>>;
[INFO] [stdout]   |                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Result<T> = ::std::result::Result<T, Box<dyn (::std::error::Error)>>;
[INFO] [stdout]   |                                               +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day2/src/lib.rs:41:46
[INFO] [stdout]    |
[INFO] [stdout] 41 |                         Difference::Same(ref x) => {}
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day2/src/lib.rs:50:45
[INFO] [stdout]    |
[INFO] [stdout] 50 |                         Difference::Rem(ref x) => {}
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking aoc_day3 v0.1.0 (/opt/rustwide/workdir/src/lib/day_libs/aoc_day3)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib/day_libs/aoc_day3/src/lib.rs:6:47
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Result<T> = ::std::result::Result<T, Box<::std::error::Error>>;
[INFO] [stdout]   |                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Result<T> = ::std::result::Result<T, Box<dyn (::std::error::Error)>>;
[INFO] [stdout]   |                                               +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib/day_libs/aoc_day3/src/lib.rs:6:47
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Result<T> = ::std::result::Result<T, Box<::std::error::Error>>;
[INFO] [stdout]   |                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Result<T> = ::std::result::Result<T, Box<dyn (::std::error::Error)>>;
[INFO] [stdout]   |                                               +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fabric`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let fabric = Fabric::new();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fabric`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `patch`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     for patch in &patches{
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_patch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn part2(input: &str) -> Result<i32> {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `x`, `y`, `width`, and `height` are never read
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Patch {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 12 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 13 |     x: u32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 14 |     y: u32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 15 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Patch` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `RE` should have a snake case name
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let RE: Regex = Regex::new(
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `re`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fabric`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let fabric = Fabric::new();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fabric`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `patch`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     for patch in &patches{
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_patch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn part2(input: &str) -> Result<i32> {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `x`, `y`, `width`, and `height` are never read
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Patch {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 12 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 13 |     x: u32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 14 |     y: u32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 15 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Patch` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `RE` should have a snake case name
[INFO] [stdout]   --> src/lib/day_libs/aoc_day3/src/lib.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let RE: Regex = Regex::new(
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `re`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rustventofcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `aoc_day1` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use aoc_day1;
[INFO] [stdout]   |     ^^^^^^^^ the item `aoc_day1` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `aoc_day2` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use aoc_day2;
[INFO] [stdout]   |     ^^^^^^^^ the item `aoc_day2` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `aoc_day3` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use aoc_day3;
[INFO] [stdout]   |     ^^^^^^^^ the item `aoc_day3` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `aoc_day1` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use aoc_day1;
[INFO] [stdout]   |     ^^^^^^^^ the item `aoc_day1` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `aoc_day2` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use aoc_day2;
[INFO] [stdout]   |     ^^^^^^^^ the item `aoc_day2` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `aoc_day3` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use aoc_day3;
[INFO] [stdout]   |     ^^^^^^^^ the item `aoc_day3` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustventofcode` is imported redundantly
[INFO] [stdout]  --> src/bin/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rustventofcode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `rustventofcode` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustventofcode` is imported redundantly
[INFO] [stdout]  --> src/bin/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rustventofcode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `rustventofcode` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.63s
[INFO] running `Command { std: "docker" "inspect" "5d5f524b3e787c311b42be885c3aa165477cc1751379f98df9f4e6c39ad8284b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d5f524b3e787c311b42be885c3aa165477cc1751379f98df9f4e6c39ad8284b", kill_on_drop: false }`
[INFO] [stdout] 5d5f524b3e787c311b42be885c3aa165477cc1751379f98df9f4e6c39ad8284b