[INFO] cloning repository https://github.com/isaacmorgan/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/isaacmorgan/advent_of_code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisaacmorgan%2Fadvent_of_code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisaacmorgan%2Fadvent_of_code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cb4c5eedd05e8e57373e9c2425d0aa6f75e9548
[INFO] checking isaacmorgan/advent_of_code against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisaacmorgan%2Fadvent_of_code" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/isaacmorgan/advent_of_code on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/isaacmorgan/advent_of_code
[INFO] finished tweaking git repo https://github.com/isaacmorgan/advent_of_code
[INFO] tweaked toml for git repo https://github.com/isaacmorgan/advent_of_code written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/isaacmorgan/advent_of_code already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6baa2acf013c83b64bd962e837fba9227e6b3f0c281d8cf98bce95e2cecc5b54
[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" "6baa2acf013c83b64bd962e837fba9227e6b3f0c281d8cf98bce95e2cecc5b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6baa2acf013c83b64bd962e837fba9227e6b3f0c281d8cf98bce95e2cecc5b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6baa2acf013c83b64bd962e837fba9227e6b3f0c281d8cf98bce95e2cecc5b54", kill_on_drop: false }`
[INFO] [stdout] 6baa2acf013c83b64bd962e837fba9227e6b3f0c281d8cf98bce95e2cecc5b54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba2fe03d91c7cb5e6f78acd1b818678ce8f11897bb5ae4156e5bc5a50d8e7006
[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" "ba2fe03d91c7cb5e6f78acd1b818678ce8f11897bb5ae4156e5bc5a50d8e7006", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking mod_exp v1.0.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent_of_code v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `load_by`
[INFO] [stdout]  --> src/tools.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn load_by(fname: &str, split: &str) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_by`
[INFO] [stdout]  --> src/tools.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn load_by(fname: &str, split: &str) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.25s
[INFO] running `Command { std: "docker" "inspect" "ba2fe03d91c7cb5e6f78acd1b818678ce8f11897bb5ae4156e5bc5a50d8e7006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba2fe03d91c7cb5e6f78acd1b818678ce8f11897bb5ae4156e5bc5a50d8e7006", kill_on_drop: false }`
[INFO] [stdout] ba2fe03d91c7cb5e6f78acd1b818678ce8f11897bb5ae4156e5bc5a50d8e7006