[INFO] cloning repository https://github.com/jakzale/rust-advent-of-code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakzale/rust-advent-of-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakzale%2Frust-advent-of-code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakzale%2Frust-advent-of-code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df97d3d2fc737fa75a1d08c0153aece0dcd5244d
[INFO] checking jakzale/rust-advent-of-code against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakzale%2Frust-advent-of-code" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakzale/rust-advent-of-code on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jakzale/rust-advent-of-code
[INFO] finished tweaking git repo https://github.com/jakzale/rust-advent-of-code
[INFO] tweaked toml for git repo https://github.com/jakzale/rust-advent-of-code written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/jakzale/rust-advent-of-code already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3bb8b759c55817b2c0946bd73166f1d0103cde9bb3b470bb28af493f8f97c46
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f3bb8b759c55817b2c0946bd73166f1d0103cde9bb3b470bb28af493f8f97c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3bb8b759c55817b2c0946bd73166f1d0103cde9bb3b470bb28af493f8f97c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3bb8b759c55817b2c0946bd73166f1d0103cde9bb3b470bb28af493f8f97c46", kill_on_drop: false }`
[INFO] [stdout] f3bb8b759c55817b2c0946bd73166f1d0103cde9bb3b470bb28af493f8f97c46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8983ae999ba12d13e1ebbf40430dec647a5184062cf1e6b49813d0a665744d86
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8983ae999ba12d13e1ebbf40430dec647a5184062cf1e6b49813d0a665744d86", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking goldenfile v1.1.0
[INFO] [stderr]     Checking rust-advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated constant is never used: `BYR`
[INFO] [stdout]   --> src/_2020/_04.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     const BYR: &'static str = "byr";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IYR`
[INFO] [stdout]   --> src/_2020/_04.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     const IYR: &'static str = "iyr";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `EYR`
[INFO] [stdout]   --> src/_2020/_04.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     const EYR: &'static str = "eyr";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `HGT`
[INFO] [stdout]   --> src/_2020/_04.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     const HGT: &'static str = "hgt";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `HCL`
[INFO] [stdout]   --> src/_2020/_04.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     const HCL: &'static str = "hcl";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `ECL`
[INFO] [stdout]   --> src/_2020/_04.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     const ECL: &'static str = "ecl";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `PID`
[INFO] [stdout]   --> src/_2020/_04.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     const PID: &'static str = "pid";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `CID`
[INFO] [stdout]   --> src/_2020/_04.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     const CID: &'static str = "cid";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `ALL`
[INFO] [stdout]   --> src/_2020/_04.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     const ALL: [&'static str; 8] = [
[INFO] [stdout] 22 | |     Self::BYR,
[INFO] [stdout] 23 | |     Self::CID,
[INFO] [stdout] 24 | |     Self::ECL,
[INFO] [stdout] ...  |
[INFO] [stdout] 29 | |     Self::PID,
[INFO] [stdout] 30 | |     ];
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `REQUIRED`
[INFO] [stdout]   --> src/_2020/_04.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     const REQUIRED: [&'static str; 7] = [
[INFO] [stdout] 33 | |     Self::BYR,
[INFO] [stdout] 34 | |     Self::ECL,
[INFO] [stdout] 35 | |     Self::EYR,
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |     Self::PID,
[INFO] [stdout] 40 | |     ];
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_field`
[INFO] [stdout]   --> src/_2020/_04.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn to_field(x: &str) -> &'static str {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_field`
[INFO] [stdout]   --> src/_2020/_04.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn has_field(&self, field: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid`
[INFO] [stdout]   --> src/_2020/_04.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/_2020/_04.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn from_str(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.72s
[INFO] running `Command { std: "docker" "inspect" "8983ae999ba12d13e1ebbf40430dec647a5184062cf1e6b49813d0a665744d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8983ae999ba12d13e1ebbf40430dec647a5184062cf1e6b49813d0a665744d86", kill_on_drop: false }`
[INFO] [stdout] 8983ae999ba12d13e1ebbf40430dec647a5184062cf1e6b49813d0a665744d86