[INFO] updating cached repository gmadrid/imt
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gmadrid/imt
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gmadrid/imt" "work/ex/beta-1.38-1/sources/1.37.0/gh/gmadrid/imt"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gmadrid/imt'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gmadrid/imt" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gmadrid/imt"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gmadrid/imt'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bc283823282e3cd834a4912052a5cb8ee0d5237f
[INFO] sha for GitHub repo gmadrid/imt: bc283823282e3cd834a4912052a5cb8ee0d5237f
[INFO] validating manifest of gmadrid/imt 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 gmadrid/imt 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 gmadrid/imt
[INFO] finished frobbing gmadrid/imt
[INFO] frobbed toml for gmadrid/imt written to work/ex/beta-1.38-1/sources/1.37.0/gh/gmadrid/imt/Cargo.toml
[INFO] started frobbing gmadrid/imt
[INFO] finished frobbing gmadrid/imt
[INFO] frobbed toml for gmadrid/imt written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gmadrid/imt/Cargo.toml
[INFO] crate gmadrid/imt 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 gmadrid/imt 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-6/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/gmadrid/imt:/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] 22458fe6be66d0d30dc63cde03fa22692f7f401bd2d0bdea07b39e7b28ace1fe
[INFO] running `"docker" "start" "-a" "22458fe6be66d0d30dc63cde03fa22692f7f401bd2d0bdea07b39e7b28ace1fe"`
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling term_size v0.2.1
[INFO] [stderr]    Compiling clap v2.14.0
[INFO] [stderr] error[E0642]: patterns aren't allowed in methods without bodies
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stderr]     |
[INFO] [stderr] 147 |                                             &f_name: &str,
[INFO] [stderr]     |                                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0642`.
[INFO] [stderr] error: Could not compile `rustc-serialize`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "22458fe6be66d0d30dc63cde03fa22692f7f401bd2d0bdea07b39e7b28ace1fe"`
[INFO] running `"docker" "rm" "-f" "22458fe6be66d0d30dc63cde03fa22692f7f401bd2d0bdea07b39e7b28ace1fe"`
[INFO] [stdout] 22458fe6be66d0d30dc63cde03fa22692f7f401bd2d0bdea07b39e7b28ace1fe