[INFO] updating cached repository gobanos/advent-of-code-2015
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gobanos/advent-of-code-2015
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gobanos/advent-of-code-2015" "work/ex/beta-1.38-1/sources/1.37.0/gh/gobanos/advent-of-code-2015"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gobanos/advent-of-code-2015'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gobanos/advent-of-code-2015" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gobanos/advent-of-code-2015"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gobanos/advent-of-code-2015'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 97e0c388448a4535f656c822aa4941c5dd2f073c
[INFO] sha for GitHub repo gobanos/advent-of-code-2015: 97e0c388448a4535f656c822aa4941c5dd2f073c
[INFO] validating manifest of gobanos/advent-of-code-2015 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gobanos/advent-of-code-2015 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gobanos/advent-of-code-2015
[INFO] finished frobbing gobanos/advent-of-code-2015
[INFO] frobbed toml for gobanos/advent-of-code-2015 written to work/ex/beta-1.38-1/sources/1.37.0/gh/gobanos/advent-of-code-2015/Cargo.toml
[INFO] started frobbing gobanos/advent-of-code-2015
[INFO] finished frobbing gobanos/advent-of-code-2015
[INFO] frobbed toml for gobanos/advent-of-code-2015 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gobanos/advent-of-code-2015/Cargo.toml
[INFO] crate gobanos/advent-of-code-2015 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing gobanos/advent-of-code-2015 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gobanos/advent-of-code-2015:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] aef967841158bd3351d164dfce03a368a74ffeeb52f2639ea4acba13fead186a
[INFO] running `"docker" "start" "-a" "aef967841158bd3351d164dfce03a368a74ffeeb52f2639ea4acba13fead186a"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.19
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling aoc-runner-internal v0.1.0
[INFO] [stderr]    Compiling aoc-runner-derive v0.1.0
[INFO] [stderr]    Compiling advent-of-code-2015 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: custom attribute panicked
[INFO] [stderr]   --> src/day2.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[aoc(day2, part1)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: message: use-after-free in `proc_macro` handle
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `advent-of-code-2015`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "aef967841158bd3351d164dfce03a368a74ffeeb52f2639ea4acba13fead186a"`
[INFO] running `"docker" "rm" "-f" "aef967841158bd3351d164dfce03a368a74ffeeb52f2639ea4acba13fead186a"`
[INFO] [stdout] aef967841158bd3351d164dfce03a368a74ffeeb52f2639ea4acba13fead186a