[INFO] updating cached repository fenhl/adventofcode-2015-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fenhl/adventofcode-2015-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fenhl/adventofcode-2015-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/fenhl/adventofcode-2015-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fenhl/adventofcode-2015-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fenhl/adventofcode-2015-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fenhl/adventofcode-2015-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fenhl/adventofcode-2015-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 32047e1bed0da7e399dfdad71319a41e4294663a
[INFO] sha for GitHub repo fenhl/adventofcode-2015-rust: 32047e1bed0da7e399dfdad71319a41e4294663a
[INFO] validating manifest of fenhl/adventofcode-2015-rust 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 fenhl/adventofcode-2015-rust 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 fenhl/adventofcode-2015-rust
[INFO] finished frobbing fenhl/adventofcode-2015-rust
[INFO] frobbed toml for fenhl/adventofcode-2015-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/fenhl/adventofcode-2015-rust/Cargo.toml
[INFO] started frobbing fenhl/adventofcode-2015-rust
[INFO] finished frobbing fenhl/adventofcode-2015-rust
[INFO] frobbed toml for fenhl/adventofcode-2015-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fenhl/adventofcode-2015-rust/Cargo.toml
[INFO] crate fenhl/adventofcode-2015-rust 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/fenhl/adventofcode-2015-rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 fenhl/adventofcode-2015-rust 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/fenhl/adventofcode-2015-rust:/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] 84362e7a5c64073510f1ad66816ef2920a93f8c101cf7dc7166eb7ab96a9d864
[INFO] running `"docker" "start" "-a" "84362e7a5c64073510f1ad66816ef2920a93f8c101cf7dc7166eb7ab96a9d864"`
[INFO] [stderr]    Compiling adventofcode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]  --> src/puzzle/p02.rs:9:35
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let width: i32 = captures.at(1).expect("failed to get width").parse().expect("failed to parse width");
[INFO] [stderr]   |                                   ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/puzzle/p02.rs:10:36
[INFO] [stderr]    |
[INFO] [stderr] 10 |         let length: i32 = captures.at(2).expect("failed to get length").parse().expect("failed to parse length");
[INFO] [stderr]    |                                    ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/puzzle/p02.rs:11:36
[INFO] [stderr]    |
[INFO] [stderr] 11 |         let height: i32 = captures.at(3).expect("failed to get height").parse().expect("failed to parse height");
[INFO] [stderr]    |                                    ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/puzzle/p02.rs:21:35
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let width: i32 = captures.at(1).expect("failed to get width").parse().expect("failed to parse width");
[INFO] [stderr]    |                                   ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/puzzle/p02.rs:22:36
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let length: i32 = captures.at(2).expect("failed to get length").parse().expect("failed to parse length");
[INFO] [stderr]    |                                    ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/puzzle/p02.rs:23:36
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let height: i32 = captures.at(3).expect("failed to get height").parse().expect("failed to parse height");
[INFO] [stderr]    |                                    ^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `adventofcode`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "84362e7a5c64073510f1ad66816ef2920a93f8c101cf7dc7166eb7ab96a9d864"`
[INFO] running `"docker" "rm" "-f" "84362e7a5c64073510f1ad66816ef2920a93f8c101cf7dc7166eb7ab96a9d864"`
[INFO] [stdout] 84362e7a5c64073510f1ad66816ef2920a93f8c101cf7dc7166eb7ab96a9d864