[INFO] updating cached repository https://github.com/michaelmelanson/advent-of-code-2018
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 763ca9d4bbaddc73d143cc376bb70d4aaeb48bb5
[INFO] testing michaelmelanson/advent-of-code-2018 against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelmelanson%2Fadvent-of-code-2018" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaelmelanson/advent-of-code-2018 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/michaelmelanson/advent-of-code-2018
[INFO] finished tweaking git repo https://github.com/michaelmelanson/advent-of-code-2018
[INFO] tweaked toml for git repo https://github.com/michaelmelanson/advent-of-code-2018 written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/michaelmelanson/advent-of-code-2018 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] c4b841d06da122e3f25525176b5bc55b1f1f38130d8c8f1b87bc8950ccffc02e
[INFO] running `"docker" "start" "-a" "c4b841d06da122e3f25525176b5bc55b1f1f38130d8c8f1b87bc8950ccffc02e"`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]    Compiling aoc-runner v0.1.0
[INFO] [stderr]    Compiling aoc-runner-internal v0.1.0
[INFO] [stderr]    Compiling aoc-runner-derive v0.1.6
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling advent-of-code-2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: proc macro panicked
[INFO] [stderr]   --> src/lib.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | aoc_lib!{ year = 2018 }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: message: failed to write infos from lib: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `advent-of-code-2018`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c4b841d06da122e3f25525176b5bc55b1f1f38130d8c8f1b87bc8950ccffc02e"`
[INFO] running `"docker" "rm" "-f" "c4b841d06da122e3f25525176b5bc55b1f1f38130d8c8f1b87bc8950ccffc02e"`
[INFO] [stdout] c4b841d06da122e3f25525176b5bc55b1f1f38130d8c8f1b87bc8950ccffc02e