[INFO] cloning repository https://github.com/LRuffati/AoC21
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LRuffati/AoC21" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLRuffati%2FAoC21", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLRuffati%2FAoC21'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3edb0fc54e9330f8ecb64fb874205523c4ddf50c
[INFO] checking LRuffati/AoC21 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLRuffati%2FAoC21" "/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/LRuffati/AoC21 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/LRuffati/AoC21
[INFO] finished tweaking git repo https://github.com/LRuffati/AoC21
[INFO] tweaked toml for git repo https://github.com/LRuffati/AoC21 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LRuffati/AoC21 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] 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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 025fda8a65e1c4bf6ffcc1867646de24eb99e25e2d8a6766fceea875fa32f22f
[INFO] running `Command { std: "docker" "start" "-a" "025fda8a65e1c4bf6ffcc1867646de24eb99e25e2d8a6766fceea875fa32f22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "025fda8a65e1c4bf6ffcc1867646de24eb99e25e2d8a6766fceea875fa32f22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "025fda8a65e1c4bf6ffcc1867646de24eb99e25e2d8a6766fceea875fa32f22f", kill_on_drop: false }`
[INFO] [stdout] 025fda8a65e1c4bf6ffcc1867646de24eb99e25e2d8a6766fceea875fa32f22f
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] effba31f23bf18b181b389ba58b9b9134780e18775ac82e8e6a4c59a0f9f7782
[INFO] running `Command { std: "docker" "start" "-a" "effba31f23bf18b181b389ba58b9b9134780e18775ac82e8e6a4c59a0f9f7782", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/days/day9.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::id`
[INFO] [stdout]  --> src/days/day9.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::process::id;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/days/day9.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::id`
[INFO] [stdout]  --> src/days/day9.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::process::id;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_a` is never used
[INFO] [stdout]  --> src/days/day8.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solve_a(input: BufReader<File>) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Guess` is never constructed
[INFO] [stdout]   --> src/days/day8.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Guess {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_b` is never used
[INFO] [stdout]   --> src/days/day8.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn solve_b(input: BufReader<File>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Candidate` is never constructed
[INFO] [stdout]  --> src/days/day9.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Candidate {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Element` is never constructed
[INFO] [stdout]   --> src/days/day9.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Element {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_a` is never used
[INFO] [stdout]   --> src/days/day9.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn solve_a(input: BufReader<File>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ElemBasin` is never constructed
[INFO] [stdout]   --> src/days/day9.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct ElemBasin {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_idx` is never used
[INFO] [stdout]   --> src/days/day9.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn get_idx(vector: &Vec<usize>, mut start: usize) -> Option<usize>{
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_b` is never used
[INFO] [stdout]   --> src/days/day9.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn solve_b(input: BufReader<File>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_a` is never used
[INFO] [stdout]  --> src/days/day10.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solve_a(input: BufReader<File>) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_a` is never used
[INFO] [stdout]  --> src/days/day8.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solve_a(input: BufReader<File>) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Guess` is never constructed
[INFO] [stdout]   --> src/days/day8.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Guess {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_b` is never used
[INFO] [stdout]   --> src/days/day8.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn solve_b(input: BufReader<File>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Candidate` is never constructed
[INFO] [stdout]  --> src/days/day9.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Candidate {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Element` is never constructed
[INFO] [stdout]   --> src/days/day9.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Element {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_a` is never used
[INFO] [stdout]   --> src/days/day9.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn solve_a(input: BufReader<File>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ElemBasin` is never constructed
[INFO] [stdout]   --> src/days/day9.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct ElemBasin {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_idx` is never used
[INFO] [stdout]   --> src/days/day9.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn get_idx(vector: &Vec<usize>, mut start: usize) -> Option<usize>{
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_b` is never used
[INFO] [stdout]   --> src/days/day9.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn solve_b(input: BufReader<File>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_a` is never used
[INFO] [stdout]  --> src/days/day10.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solve_a(input: BufReader<File>) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/days/day8.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 2 => dig_1 = digit.clone(),
[INFO] [stdout]    |                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/days/day8.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 4 => dig_4 = digit.clone(),
[INFO] [stdout]    |                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/days/day8.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 2 => dig_1 = digit.clone(),
[INFO] [stdout]    |                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/days/day8.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 4 => dig_4 = digit.clone(),
[INFO] [stdout]    |                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.99s
[INFO] running `Command { std: "docker" "inspect" "effba31f23bf18b181b389ba58b9b9134780e18775ac82e8e6a4c59a0f9f7782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "effba31f23bf18b181b389ba58b9b9134780e18775ac82e8e6a4c59a0f9f7782", kill_on_drop: false }`
[INFO] [stdout] effba31f23bf18b181b389ba58b9b9134780e18775ac82e8e6a4c59a0f9f7782