[INFO] cloning repository https://github.com/ouranos588/advent_of_code_2015
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ouranos588/advent_of_code_2015" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fouranos588%2Fadvent_of_code_2015", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fouranos588%2Fadvent_of_code_2015'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a868a27b48fc75f030532401b10d094d3ec92d8
[INFO] checking ouranos588/advent_of_code_2015 against master#d49be02cf6d2e2a01264fcdef1e20c826710c0f5 for pr-133570-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fouranos588%2Fadvent_of_code_2015" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ouranos588/advent_of_code_2015 on toolchain d49be02cf6d2e2a01264fcdef1e20c826710c0f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ouranos588/advent_of_code_2015
[INFO] finished tweaking git repo https://github.com/ouranos588/advent_of_code_2015
[INFO] tweaked toml for git repo https://github.com/ouranos588/advent_of_code_2015 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ouranos588/advent_of_code_2015 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" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1492280c2311eb5e1b09a9bcb5b6f739621c8da3aef43d825d42510cf6c84fc
[INFO] running `Command { std: "docker" "start" "-a" "e1492280c2311eb5e1b09a9bcb5b6f739621c8da3aef43d825d42510cf6c84fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1492280c2311eb5e1b09a9bcb5b6f739621c8da3aef43d825d42510cf6c84fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1492280c2311eb5e1b09a9bcb5b6f739621c8da3aef43d825d42510cf6c84fc", kill_on_drop: false }`
[INFO] [stdout] e1492280c2311eb5e1b09a9bcb5b6f739621c8da3aef43d825d42510cf6c84fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a83cc3255541bc3affe6815c51871126b685f480650d010e252794a2cd227268
[INFO] running `Command { std: "docker" "start" "-a" "a83cc3255541bc3affe6815c51871126b685f480650d010e252794a2cd227268", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking aoc_2015 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file_content`
[INFO] [stdout]  --> src/problem_5.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let file_content = fs::read_to_string(file_name)
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_content`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_content`
[INFO] [stdout]  --> src/problem_5.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let file_content = fs::read_to_string(file_name)
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_content`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.52s
[INFO] running `Command { std: "docker" "inspect" "a83cc3255541bc3affe6815c51871126b685f480650d010e252794a2cd227268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a83cc3255541bc3affe6815c51871126b685f480650d010e252794a2cd227268", kill_on_drop: false }`
[INFO] [stdout] a83cc3255541bc3affe6815c51871126b685f480650d010e252794a2cd227268