[INFO] cloning repository https://github.com/luismeyer95/advent-of-code-2024
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luismeyer95/advent-of-code-2024" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluismeyer95%2Fadvent-of-code-2024", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluismeyer95%2Fadvent-of-code-2024'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] faa442f959d1802f5e212a53ccd9303f8d44eb2e
[INFO] checking luismeyer95/advent-of-code-2024 against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluismeyer95%2Fadvent-of-code-2024" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/luismeyer95/advent-of-code-2024
[INFO] finished tweaking git repo https://github.com/luismeyer95/advent-of-code-2024
[INFO] tweaked toml for git repo https://github.com/luismeyer95/advent-of-code-2024 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luismeyer95/advent-of-code-2024 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/luismeyer95/advent-of-code-2024 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.99
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.99
[INFO] [stderr]   Downloaded enum-as-inner v0.5.1
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.99
[INFO] [stderr]   Downloaded cached_proc_macro_types v0.1.1
[INFO] [stderr]   Downloaded envy v0.4.2
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.99
[INFO] [stderr]   Downloaded recap-derive v0.1.2
[INFO] [stderr]   Downloaded recap v0.1.2
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.99
[INFO] [stderr]   Downloaded cached_proc_macro v0.23.0
[INFO] [stderr]   Downloaded cached v0.54.0
[INFO] [stderr]   Downloaded js-sys v0.3.76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 794a2f500553faa6fc80a80ff1cf94f8a15a5e4fa130ff4caabdfb349e2dba22
[INFO] running `Command { std: "docker" "start" "-a" "794a2f500553faa6fc80a80ff1cf94f8a15a5e4fa130ff4caabdfb349e2dba22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "794a2f500553faa6fc80a80ff1cf94f8a15a5e4fa130ff4caabdfb349e2dba22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "794a2f500553faa6fc80a80ff1cf94f8a15a5e4fa130ff4caabdfb349e2dba22", kill_on_drop: false }`
[INFO] [stdout] 794a2f500553faa6fc80a80ff1cf94f8a15a5e4fa130ff4caabdfb349e2dba22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccd8b9fc46bd747f73cc101bb8ec451f8369a67eb8b8c4069757aad046696e89
[INFO] running `Command { std: "docker" "start" "-a" "ccd8b9fc46bd747f73cc101bb8ec451f8369a67eb8b8c4069757aad046696e89", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking cached_proc_macro_types v0.1.1
[INFO] [stderr]     Checking web-time v1.1.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling enum-as-inner v0.5.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling recap-derive v0.1.2
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling cached_proc_macro v0.23.0
[INFO] [stderr]     Checking cached v0.54.0
[INFO] [stderr]     Checking envy v0.4.2
[INFO] [stderr]     Checking recap v0.1.2
[INFO] [stderr]     Checking e01 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(binary_heap_drain_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `solution1` and `solution2`
[INFO] [stdout]  --> src/d1/mod.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use main::{solution1, solution2};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `solution1` and `solution2`
[INFO] [stdout]  --> src/d10/mod.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::{solution1, solution2};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d11/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `solution1` and `solution2`
[INFO] [stdout]  --> src/d12/mod.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::{solution1, solution2};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d2/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chain`
[INFO] [stdout]  --> src/d3/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{chain, Itertools};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d3/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chain`
[INFO] [stdout]  --> src/d4/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{chain, Itertools};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d4/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d5/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d6/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d7/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d8/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `solution1` and `solution2`
[INFO] [stdout]  --> src/d9/mod.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::{solution1, solution2};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(binary_heap_drain_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `solution1` and `solution2`
[INFO] [stdout]  --> src/d1/mod.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use main::{solution1, solution2};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `solution1` and `solution2`
[INFO] [stdout]  --> src/d10/mod.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::{solution1, solution2};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d11/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `solution1` and `solution2`
[INFO] [stdout]  --> src/d12/mod.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::{solution1, solution2};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d2/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chain`
[INFO] [stdout]  --> src/d3/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{chain, Itertools};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d3/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chain`
[INFO] [stdout]  --> src/d4/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{chain, Itertools};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d4/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d5/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d6/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d7/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main::solution1`
[INFO] [stdout]  --> src/d8/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::solution1;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `solution1` and `solution2`
[INFO] [stdout]  --> src/d9/mod.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use main::{solution1, solution2};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Itertools`
[INFO] [stdout]  --> src/d3/main.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{chain, Itertools};
[INFO] [stdout]   |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/d2/main.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |     for (i, (a, b)) in nums.iter().tuple_windows().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/d4/main.rs:14:18
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn solution1(mut line_iter: impl Iterator<Item = String>) -> Result<u32, Box<dyn Error>> {
[INFO] [stdout]    |                  ----^^^^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/d4/main.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn solution2(mut line_iter: impl Iterator<Item = String>) -> Result<u32, Box<dyn Error>> {
[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/d6/main.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn solution1(mut line_iter: impl Iterator<Item = String>) -> Result<usize, Box<dyn Error>> {
[INFO] [stdout]    |                  ----^^^^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `e01` (bin "e01" test) due to 1 previous error; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Itertools`
[INFO] [stdout]  --> src/d3/main.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{chain, Itertools};
[INFO] [stdout]   |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/d2/main.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |     for (i, (a, b)) in nums.iter().tuple_windows().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/d4/main.rs:14:18
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn solution1(mut line_iter: impl Iterator<Item = String>) -> Result<u32, Box<dyn Error>> {
[INFO] [stdout]    |                  ----^^^^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/d4/main.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn solution2(mut line_iter: impl Iterator<Item = String>) -> Result<u32, Box<dyn Error>> {
[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/d6/main.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn solution1(mut line_iter: impl Iterator<Item = String>) -> Result<usize, Box<dyn Error>> {
[INFO] [stdout]    |                  ----^^^^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `e01` (bin "e01") due to 1 previous error; 21 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ccd8b9fc46bd747f73cc101bb8ec451f8369a67eb8b8c4069757aad046696e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccd8b9fc46bd747f73cc101bb8ec451f8369a67eb8b8c4069757aad046696e89", kill_on_drop: false }`
[INFO] [stdout] ccd8b9fc46bd747f73cc101bb8ec451f8369a67eb8b8c4069757aad046696e89
