[INFO] cloning repository https://github.com/montanero/aoc2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/montanero/aoc2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmontanero%2Faoc2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmontanero%2Faoc2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb10443da61c95c9955950f5a8d08da895ed776a
[INFO] checking montanero/aoc2021 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmontanero%2Faoc2021" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/montanero/aoc2021 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/montanero/aoc2021
[INFO] finished tweaking git repo https://github.com/montanero/aoc2021
[INFO] tweaked toml for git repo https://github.com/montanero/aoc2021 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/montanero/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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d23296324094b4bbec3ee4f854bb96bd649c3ab45a863549488327a08c9037f7
[INFO] running `Command { std: "docker" "start" "-a" "d23296324094b4bbec3ee4f854bb96bd649c3ab45a863549488327a08c9037f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d23296324094b4bbec3ee4f854bb96bd649c3ab45a863549488327a08c9037f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d23296324094b4bbec3ee4f854bb96bd649c3ab45a863549488327a08c9037f7", kill_on_drop: false }`
[INFO] [stdout] d23296324094b4bbec3ee4f854bb96bd649c3ab45a863549488327a08c9037f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 57f99f257007b47f7e1f2729f85ca3052634bfdb194f23bae256f7b2cd343a42
[INFO] running `Command { std: "docker" "start" "-a" "57f99f257007b47f7e1f2729f85ca3052634bfdb194f23bae256f7b2cd343a42", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `File` is imported redundantly
[INFO] [stdout]   --> src/aoc/file.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     use std::fs::File;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     use super::*;
[INFO] [stdout]    |         -------- the item `File` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathBuf` is imported redundantly
[INFO] [stdout]   --> src/aoc/file.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     use std::path::PathBuf;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     use super::*;
[INFO] [stdout]    |         -------- the item `PathBuf` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/aoc/day15a.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) fn solve() -> u32 {
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_file` is never used
[INFO] [stdout]   --> src/aoc/day15a.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn solve_file(f: &Path) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solver` is never constructed
[INFO] [stdout]   --> src/aoc/day15a.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Solver {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `create`, `create_initial_line`, `calculate`, and `fix` are never used
[INFO] [stdout]   --> src/aoc/day15a.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Solver {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 25 |     fn create(levels: Vec<Vec<i8>>) -> Solver {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn create_initial_line(levels: &Vec<Vec<i8>>, y: usize, left_value: u32) -> Vec<u32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn calculate(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     fn fix(&mut self, x: usize, y: usize) -> bool {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]   --> src/aoc/day15a.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn read_file(p0: &Path) -> Vec<Vec<i8>> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_line` is never used
[INFO] [stdout]   --> src/aoc/day15a.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn parse_line(line: &str) -> Vec<i8> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/aoc/day15b.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) fn solve() -> u32 {
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_file` is never used
[INFO] [stdout]   --> src/aoc/day15b.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn solve_file(f: &Path) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unfold` is never used
[INFO] [stdout]   --> src/aoc/day15b.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn unfold(tile: Vec<Vec<i8>>) -> Vec<Vec<i8>> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unfold_x` is never used
[INFO] [stdout]   --> src/aoc/day15b.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn unfold_x(orig: Vec<Vec<i8>>) -> Vec<Vec<i8>> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unfold_y` is never used
[INFO] [stdout]   --> src/aoc/day15b.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn unfold_y(orig: Vec<Vec<i8>>) -> Vec<Vec<i8>> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solver` is never constructed
[INFO] [stdout]   --> src/aoc/day15b.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | struct Solver {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `create`, `create_initial_line`, `calculate`, and `fix` are never used
[INFO] [stdout]    --> src/aoc/day15b.rs:63:8
[INFO] [stdout]     |
[INFO] [stdout] 62  | impl Solver {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 63  |     fn create(levels: Vec<Vec<i8>>) -> Solver {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83  |     fn create_initial_line(levels: &Vec<Vec<i8>>, y: usize, left_value: u32) -> Vec<u32> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92  |     fn calculate(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn fix(&mut self, x: usize, y: usize) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]    --> src/aoc/day15b.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn read_file(p0: &Path) -> Vec<Vec<i8>> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_line` is never used
[INFO] [stdout]    --> src/aoc/day15b.rs:139:4
[INFO] [stdout]     |
[INFO] [stdout] 139 | fn parse_line(line: &str) -> Vec<i8> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines` is never used
[INFO] [stdout]  --> src/aoc/file.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn read_lines(filename: &Path) -> io::Result<io::Lines<io::BufReader<File>>> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `input` is never used
[INFO] [stdout]   --> src/aoc/file.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn input(filename: &str) -> PathBuf {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "57f99f257007b47f7e1f2729f85ca3052634bfdb194f23bae256f7b2cd343a42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57f99f257007b47f7e1f2729f85ca3052634bfdb194f23bae256f7b2cd343a42", kill_on_drop: false }`
[INFO] [stdout] 57f99f257007b47f7e1f2729f85ca3052634bfdb194f23bae256f7b2cd343a42