[INFO] cloning repository https://github.com/m-r-hunt/aoc2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/m-r-hunt/aoc2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-r-hunt%2Faoc2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-r-hunt%2Faoc2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be7a9173a5de97a86d08c9ace4fe8907b7226293
[INFO] checking m-r-hunt/aoc2018 against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-r-hunt%2Faoc2018" "/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/m-r-hunt/aoc2018 on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/m-r-hunt/aoc2018
[INFO] finished tweaking git repo https://github.com/m-r-hunt/aoc2018
[INFO] tweaked toml for git repo https://github.com/m-r-hunt/aoc2018 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/m-r-hunt/aoc2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strcursor v0.2.5
[INFO] [stderr]   Downloaded scan-rules v0.2.0
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 278a8f04b51b640a706f0ec650d865c01c58d39824f632a331aa7ef1d886de09
[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" "278a8f04b51b640a706f0ec650d865c01c58d39824f632a331aa7ef1d886de09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "278a8f04b51b640a706f0ec650d865c01c58d39824f632a331aa7ef1d886de09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "278a8f04b51b640a706f0ec650d865c01c58d39824f632a331aa7ef1d886de09", kill_on_drop: false }`
[INFO] [stdout] 278a8f04b51b640a706f0ec650d865c01c58d39824f632a331aa7ef1d886de09
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 793c760bd3a3fe390930246c0d634630656377f0370f48bb2b3733dc18ccf29f
[INFO] running `Command { std: "docker" "start" "-a" "793c760bd3a3fe390930246c0d634630656377f0370f48bb2b3733dc18ccf29f", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking unicode-segmentation v0.1.2
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling strcursor v0.2.5
[INFO] [stderr]    Compiling scan-rules v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking aoc2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.12s
[INFO] running `Command { std: "docker" "inspect" "793c760bd3a3fe390930246c0d634630656377f0370f48bb2b3733dc18ccf29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "793c760bd3a3fe390930246c0d634630656377f0370f48bb2b3733dc18ccf29f", kill_on_drop: false }`
[INFO] [stdout] 793c760bd3a3fe390930246c0d634630656377f0370f48bb2b3733dc18ccf29f