[INFO] cloning repository https://github.com/Fr0benius/advent2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fr0benius/advent2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFr0benius%2Fadvent2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFr0benius%2Fadvent2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76754ce531e16bde1a57280fdffe3b147c625157
[INFO] checking Fr0benius/advent2018/76754ce531e16bde1a57280fdffe3b147c625157 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFr0benius%2Fadvent2018" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fr0benius/advent2018 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Fr0benius/advent2018
[INFO] finished tweaking git repo https://github.com/Fr0benius/advent2018
[INFO] tweaked toml for git repo https://github.com/Fr0benius/advent2018 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Fr0benius/advent2018 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7a58d3af520a1b5c61119e1ba963b6e462a672622782d7d1eadb84235f137fe
[INFO] running `Command { std: "docker" "start" "-a" "b7a58d3af520a1b5c61119e1ba963b6e462a672622782d7d1eadb84235f137fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7a58d3af520a1b5c61119e1ba963b6e462a672622782d7d1eadb84235f137fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7a58d3af520a1b5c61119e1ba963b6e462a672622782d7d1eadb84235f137fe", kill_on_drop: false }`
[INFO] [stdout] b7a58d3af520a1b5c61119e1ba963b6e462a672622782d7d1eadb84235f137fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43818907ec68fc4c8bfb96ef843ccae987e9413e1aa8c6024b27dfd5b2919cff
[INFO] running `Command { std: "docker" "start" "-a" "43818907ec68fc4c8bfb96ef843ccae987e9413e1aa8c6024b27dfd5b2919cff", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking advent2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cmp::max`
[INFO] [stdout]  --> src/bin/day20.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::max, collections::{HashMap, HashSet, VecDeque}};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cmp::max`
[INFO] [stdout]  --> src/bin/day20.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::max, collections::{HashMap, HashSet, VecDeque}};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `Command { std: "docker" "inspect" "43818907ec68fc4c8bfb96ef843ccae987e9413e1aa8c6024b27dfd5b2919cff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43818907ec68fc4c8bfb96ef843ccae987e9413e1aa8c6024b27dfd5b2919cff", kill_on_drop: false }`
[INFO] [stdout] 43818907ec68fc4c8bfb96ef843ccae987e9413e1aa8c6024b27dfd5b2919cff