[INFO] cloning repository https://github.com/RusticFlare/advent-of-code-2021-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RusticFlare/advent-of-code-2021-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusticFlare%2Fadvent-of-code-2021-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusticFlare%2Fadvent-of-code-2021-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e100866399e9a59b96445d6032ba5ff480258f46
[INFO] building RusticFlare/advent-of-code-2021-rust against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusticFlare%2Fadvent-of-code-2021-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RusticFlare/advent-of-code-2021-rust on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RusticFlare/advent-of-code-2021-rust
[INFO] finished tweaking git repo https://github.com/RusticFlare/advent-of-code-2021-rust
[INFO] tweaked toml for git repo https://github.com/RusticFlare/advent-of-code-2021-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/RusticFlare/advent-of-code-2021-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b31b3130bf9f8a54121a5c4377ea10898810522f14fac13fbe00c8bae4c42e3
[INFO] running `Command { std: "docker" "start" "-a" "0b31b3130bf9f8a54121a5c4377ea10898810522f14fac13fbe00c8bae4c42e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b31b3130bf9f8a54121a5c4377ea10898810522f14fac13fbe00c8bae4c42e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b31b3130bf9f8a54121a5c4377ea10898810522f14fac13fbe00c8bae4c42e3", kill_on_drop: false }`
[INFO] [stdout] 0b31b3130bf9f8a54121a5c4377ea10898810522f14fac13fbe00c8bae4c42e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4042ecea79a00e92d7c9a48d264b15c29c11223933bf84f135d72c32a561a32c
[INFO] running `Command { std: "docker" "start" "-a" "4042ecea79a00e92d7c9a48d264b15c29c11223933bf84f135d72c32a561a32c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling advent-of-code-2021-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Sub`
[INFO] [stdout]  --> src/day_20.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Sub;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process_results`
[INFO] [stdout]  --> src/day_21.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{process_results, Itertools};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day_14.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn part_2(input: &str) -> u128 {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day_19.rs:53:15
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn part_2(input: &str) -> u32 {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day_9.rs:42:15
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn part_2(input: &str) -> u32 {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_2` is never used
[INFO] [stdout]   --> src/day_12.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn part_2(input: &str) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_2` is never used
[INFO] [stdout]   --> src/day_15.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn part_2(input: &str) -> u32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]    --> src/day_18.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 12  | impl SnailfishNumber {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn print(&self) -> String {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_2` is never used
[INFO] [stdout]    --> src/day_18.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub fn part_2(input: &str) -> u32 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_2` is never used
[INFO] [stdout]   --> src/day_20.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn part_2(input: &str) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.98s
[INFO] running `Command { std: "docker" "inspect" "4042ecea79a00e92d7c9a48d264b15c29c11223933bf84f135d72c32a561a32c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4042ecea79a00e92d7c9a48d264b15c29c11223933bf84f135d72c32a561a32c", kill_on_drop: false }`
[INFO] [stdout] 4042ecea79a00e92d7c9a48d264b15c29c11223933bf84f135d72c32a561a32c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3f32a780cd67b8fffc1f692fb7489f36af37c3dac91892ebc570bc74cb1f667
[INFO] running `Command { std: "docker" "start" "-a" "d3f32a780cd67b8fffc1f692fb7489f36af37c3dac91892ebc570bc74cb1f667", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent-of-code-2021-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Sub`
[INFO] [stdout]  --> src/day_20.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Sub;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::part_1`
[INFO] [stdout]    --> src/day_20.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     use super::part_1;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process_results`
[INFO] [stdout]  --> src/day_21.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{process_results, Itertools};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day_14.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn part_2(input: &str) -> u128 {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day_19.rs:53:15
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn part_2(input: &str) -> u32 {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day_9.rs:42:15
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn part_2(input: &str) -> u32 {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `TEST_INPUT` is never used
[INFO] [stdout]  --> src/day_16/test/input.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub static TEST_INPUT: &str = "A0016C880162017C3686B18A3D4780";
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "d3f32a780cd67b8fffc1f692fb7489f36af37c3dac91892ebc570bc74cb1f667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f32a780cd67b8fffc1f692fb7489f36af37c3dac91892ebc570bc74cb1f667", kill_on_drop: false }`
[INFO] [stdout] d3f32a780cd67b8fffc1f692fb7489f36af37c3dac91892ebc570bc74cb1f667