[INFO] cloning repository https://github.com/vidup/advent_2022_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vidup/advent_2022_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvidup%2Fadvent_2022_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvidup%2Fadvent_2022_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4302522fa6a41d3b52c322e16c3d191d34ae3c3f
[INFO] checking vidup/advent_2022_rust against master#2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvidup%2Fadvent_2022_rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vidup/advent_2022_rust on toolchain 2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vidup/advent_2022_rust
[INFO] finished tweaking git repo https://github.com/vidup/advent_2022_rust
[INFO] tweaked toml for git repo https://github.com/vidup/advent_2022_rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vidup/advent_2022_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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9e4d50f13fe3c8f1f7ce75d9e6f1e2bbdbcec05c19f2b22fdf2f5e77a5e5a93
[INFO] running `Command { std: "docker" "start" "-a" "e9e4d50f13fe3c8f1f7ce75d9e6f1e2bbdbcec05c19f2b22fdf2f5e77a5e5a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9e4d50f13fe3c8f1f7ce75d9e6f1e2bbdbcec05c19f2b22fdf2f5e77a5e5a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9e4d50f13fe3c8f1f7ce75d9e6f1e2bbdbcec05c19f2b22fdf2f5e77a5e5a93", kill_on_drop: false }`
[INFO] [stdout] e9e4d50f13fe3c8f1f7ce75d9e6f1e2bbdbcec05c19f2b22fdf2f5e77a5e5a93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eecc1cc56d1a2279965938484ea06e68c2d1699376feaedcb9cb58984161a6fe
[INFO] running `Command { std: "docker" "start" "-a" "eecc1cc56d1a2279965938484ea06e68c2d1699376feaedcb9cb58984161a6fe", kill_on_drop: false }`
[INFO] [stderr]     Checking advent_2022 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/levels/level_7/mod.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |             let len = path_parts.len();
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[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/levels/level_7/mod.rs:148:17
[INFO] [stdout]     |
[INFO] [stdout] 148 |             let mut path = String::from(current_directory);
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_input_file` is never used
[INFO] [stdout]  --> src/levels/level_1/mod.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn read_input_file() -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `path`, `files`, and `folders` are never read
[INFO] [stdout]   --> src/levels/level_7/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Folder {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 16 |     path: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     files: Vec<File>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     folders: Vec<Folder>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `COMMUNICATION_MARKER_LENGTH` should have a snake case name
[INFO] [stdout]  --> src/levels/level_6/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let COMMUNICATION_MARKER_LENGTH = 4;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `communication_marker_length`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MESSAGES_MARKER_LENGTH` should have a snake case name
[INFO] [stdout]  --> src/levels/level_6/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let MESSAGES_MARKER_LENGTH = 14;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `messages_marker_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/levels/level_7/mod.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |             let len = path_parts.len();
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[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/levels/level_7/mod.rs:148:17
[INFO] [stdout]     |
[INFO] [stdout] 148 |             let mut path = String::from(current_directory);
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_input_file` is never used
[INFO] [stdout]  --> src/levels/level_1/mod.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn read_input_file() -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `path`, `files`, and `folders` are never read
[INFO] [stdout]   --> src/levels/level_7/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Folder {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 16 |     path: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     files: Vec<File>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     folders: Vec<Folder>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `COMMUNICATION_MARKER_LENGTH` should have a snake case name
[INFO] [stdout]  --> src/levels/level_6/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let COMMUNICATION_MARKER_LENGTH = 4;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `communication_marker_length`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MESSAGES_MARKER_LENGTH` should have a snake case name
[INFO] [stdout]  --> src/levels/level_6/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let MESSAGES_MARKER_LENGTH = 14;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `messages_marker_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "eecc1cc56d1a2279965938484ea06e68c2d1699376feaedcb9cb58984161a6fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eecc1cc56d1a2279965938484ea06e68c2d1699376feaedcb9cb58984161a6fe", kill_on_drop: false }`
[INFO] [stdout] eecc1cc56d1a2279965938484ea06e68c2d1699376feaedcb9cb58984161a6fe