[INFO] cloning repository https://github.com/EdoardoLuciani/aoc2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EdoardoLuciani/aoc2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEdoardoLuciani%2Faoc2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEdoardoLuciani%2Faoc2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5dc1e63c97f4836859220a4acec92939e647267
[INFO] building EdoardoLuciani/aoc2021 against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEdoardoLuciani%2Faoc2021" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EdoardoLuciani/aoc2021 on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/EdoardoLuciani/aoc2021
[INFO] finished tweaking git repo https://github.com/EdoardoLuciani/aoc2021
[INFO] tweaked toml for git repo https://github.com/EdoardoLuciani/aoc2021 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/EdoardoLuciani/aoc2021 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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 470d77838b4d4f0dd0c6edbcb0f3e34144b3522e11f5e57af3a3a356beddf770
[INFO] running `Command { std: "docker" "start" "-a" "470d77838b4d4f0dd0c6edbcb0f3e34144b3522e11f5e57af3a3a356beddf770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "470d77838b4d4f0dd0c6edbcb0f3e34144b3522e11f5e57af3a3a356beddf770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "470d77838b4d4f0dd0c6edbcb0f3e34144b3522e11f5e57af3a3a356beddf770", kill_on_drop: false }`
[INFO] [stdout] 470d77838b4d4f0dd0c6edbcb0f3e34144b3522e11f5e57af3a3a356beddf770
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2404e0f6e9f976739dc37544789605d0a2ad1c5a127df3899ac6b3ae19182fb8
[INFO] running `Command { std: "docker" "start" "-a" "2404e0f6e9f976739dc37544789605d0a2ad1c5a127df3899ac6b3ae19182fb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `HashMap` and `HashSet`
[INFO] [stdout]  --> src/bin/day10/main.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LinkedList`
[INFO] [stdout]  --> src/bin/day14/main.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, LinkedList};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compute_steps_until_all_equal` is never used
[INFO] [stdout]   --> src/bin/day11/main.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl Matrix<u8> {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 98 |     fn compute_steps_until_all_equal(&mut self) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> src/bin/day6/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     for day in 1..=days {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_day`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/day6/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     file.read_to_string(&mut line);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let _ = file.read_to_string(&mut line);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `step`
[INFO] [stdout]   --> src/bin/day14/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     for step in 0..steps {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_step`
[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/bin/day14/main.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     mut polymer: 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: function `compute_steps` is never used
[INFO] [stdout]   --> src/bin/day14/main.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn compute_steps(mut polymer: String, rules: &HashMap<String, String>, steps: u64) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/day14/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         ret_val.write_char(polymer.chars().nth(0).unwrap());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let _ = ret_val.write_char(polymer.chars().nth(0).unwrap());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `ret_value` in this scope
[INFO] [stdout]   --> src/bin/day8/main.rs:79:22
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 4 => ret_value.push(4),
[INFO] [stdout]    |                      ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `ret_value` in this scope
[INFO] [stdout]   --> src/bin/day8/main.rs:80:22
[INFO] [stdout]    |
[INFO] [stdout] 80 |                 7 => ret_value.push(8),
[INFO] [stdout]    |                      ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2021` (bin "day8") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `read_input_from_file` is never used
[INFO] [stdout]   --> src/bin/day15/main.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn read_input_from_file() -> Matrix<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2404e0f6e9f976739dc37544789605d0a2ad1c5a127df3899ac6b3ae19182fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2404e0f6e9f976739dc37544789605d0a2ad1c5a127df3899ac6b3ae19182fb8", kill_on_drop: false }`
[INFO] [stdout] 2404e0f6e9f976739dc37544789605d0a2ad1c5a127df3899ac6b3ae19182fb8
