[INFO] updating cached repository ELD/hackassembler-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ELD/hackassembler-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ELD/hackassembler-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/ELD/hackassembler-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ELD/hackassembler-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ELD/hackassembler-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/hackassembler-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/hackassembler-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c3a9a28f43251b825e75be9d9880a58569c3580
[INFO] sha for GitHub repo ELD/hackassembler-rs: 3c3a9a28f43251b825e75be9d9880a58569c3580
[INFO] validating manifest of ELD/hackassembler-rs 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 ELD/hackassembler-rs 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 ELD/hackassembler-rs
[INFO] finished frobbing ELD/hackassembler-rs
[INFO] frobbed toml for ELD/hackassembler-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/ELD/hackassembler-rs/Cargo.toml
[INFO] started frobbing ELD/hackassembler-rs
[INFO] finished frobbing ELD/hackassembler-rs
[INFO] frobbed toml for ELD/hackassembler-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/hackassembler-rs/Cargo.toml
[INFO] crate ELD/hackassembler-rs 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/ELD/hackassembler-rs/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[INFO] the lockfile is outdated, regenerating it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 ELD/hackassembler-rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/hackassembler-rs:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 41b45223b2785b3dfaaa5a72dc940f5f40998d1bc3f825195b4a8ab1a9eea6c0
[INFO] running `"docker" "start" "-a" "41b45223b2785b3dfaaa5a72dc940f5f40998d1bc3f825195b4a8ab1a9eea6c0"`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling hackassembler 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/syntax/lex.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |         capture.at(1).unwrap().trim()
[INFO] [stderr]    |                 ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/syntax/parse.rs:34:37
[INFO] [stderr]    |
[INFO] [stderr] 34 |                 let digit = capture.at(1).unwrap();
[INFO] [stderr]    |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/syntax/parse.rs:123:37
[INFO] [stderr]     |
[INFO] [stderr] 123 |                 let label = capture.at(1).unwrap();
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `hackassembler`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "41b45223b2785b3dfaaa5a72dc940f5f40998d1bc3f825195b4a8ab1a9eea6c0"`
[INFO] running `"docker" "rm" "-f" "41b45223b2785b3dfaaa5a72dc940f5f40998d1bc3f825195b4a8ab1a9eea6c0"`
[INFO] [stdout] 41b45223b2785b3dfaaa5a72dc940f5f40998d1bc3f825195b4a8ab1a9eea6c0