[INFO] updating cached repository mslynch/adventofcode2016
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mslynch/adventofcode2016
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mslynch/adventofcode2016" "work/ex/beta-1.38-1/sources/1.37.0/gh/mslynch/adventofcode2016"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mslynch/adventofcode2016'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mslynch/adventofcode2016" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mslynch/adventofcode2016"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mslynch/adventofcode2016'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5fb7218aac78f34ecd3ba181c92d811a03c83e39
[INFO] sha for GitHub repo mslynch/adventofcode2016: 5fb7218aac78f34ecd3ba181c92d811a03c83e39
[INFO] validating manifest of mslynch/adventofcode2016 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 mslynch/adventofcode2016 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 mslynch/adventofcode2016
[INFO] finished frobbing mslynch/adventofcode2016
[INFO] frobbed toml for mslynch/adventofcode2016 written to work/ex/beta-1.38-1/sources/1.37.0/gh/mslynch/adventofcode2016/Cargo.toml
[INFO] started frobbing mslynch/adventofcode2016
[INFO] finished frobbing mslynch/adventofcode2016
[INFO] frobbed toml for mslynch/adventofcode2016 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mslynch/adventofcode2016/Cargo.toml
[INFO] crate mslynch/adventofcode2016 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 mslynch/adventofcode2016 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mslynch/adventofcode2016:/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] c79580ac41e1d6cc23da297f5a3bdb76c25917a7a08375c109477bdbe3e4aae3
[INFO] running `"docker" "start" "-a" "c79580ac41e1d6cc23da297f5a3bdb76c25917a7a08375c109477bdbe3e4aae3"`
[INFO] [stderr]    Compiling rpds v0.6.0
[INFO] [stderr]    Compiling im v12.3.4
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling adventofcode2016 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: expected expression, found `)`
[INFO] [stderr]    --> src/day11.rs:154:34
[INFO] [stderr]     |
[INFO] [stderr] 154 |         building.iter().filter(||)
[INFO] [stderr]     |                                  ^ expected expression
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `adventofcode2016`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c79580ac41e1d6cc23da297f5a3bdb76c25917a7a08375c109477bdbe3e4aae3"`
[INFO] running `"docker" "rm" "-f" "c79580ac41e1d6cc23da297f5a3bdb76c25917a7a08375c109477bdbe3e4aae3"`
[INFO] [stdout] c79580ac41e1d6cc23da297f5a3bdb76c25917a7a08375c109477bdbe3e4aae3