[INFO] updating cached repository https://github.com/blorente/adventofcode2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f24bb7b987e3eea6b745fef00cf81fa4767fadc4
[INFO] checking blorente/adventofcode2019 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblorente%2Fadventofcode2019" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blorente/adventofcode2019 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blorente/adventofcode2019
[INFO] finished tweaking git repo https://github.com/blorente/adventofcode2019
[INFO] tweaked toml for git repo https://github.com/blorente/adventofcode2019 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/blorente/adventofcode2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c230b549663b2cd0bdbb123f92dc4b04a9c8f85ef9491064b09690621b95127a
[INFO] running `Command { std: "docker" "start" "-a" "c230b549663b2cd0bdbb123f92dc4b04a9c8f85ef9491064b09690621b95127a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c230b549663b2cd0bdbb123f92dc4b04a9c8f85ef9491064b09690621b95127a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c230b549663b2cd0bdbb123f92dc4b04a9c8f85ef9491064b09690621b95127a", kill_on_drop: false }`
[INFO] [stdout] c230b549663b2cd0bdbb123f92dc4b04a9c8f85ef9491064b09690621b95127a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec33577f3dd0f457551030d4929296cf3fd26088cead5cb19e80815637e9c74f
[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" "ec33577f3dd0f457551030d4929296cf3fd26088cead5cb19e80815637e9c74f", kill_on_drop: false }`
[INFO] [stderr]     Checking adventofcode2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{BufReader, BufRead};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stdout]  --> src/instructions.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Read, BufReader, BufRead};
[INFO] [stdout]   |               ^^^^  ^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{BufReader, BufRead};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stdout]  --> src/instructions.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Read, BufReader, BufRead};
[INFO] [stdout]   |               ^^^^  ^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "ec33577f3dd0f457551030d4929296cf3fd26088cead5cb19e80815637e9c74f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec33577f3dd0f457551030d4929296cf3fd26088cead5cb19e80815637e9c74f", kill_on_drop: false }`
[INFO] [stdout] ec33577f3dd0f457551030d4929296cf3fd26088cead5cb19e80815637e9c74f