[INFO] updating cached repository zpallin/iron_with_mongo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zpallin/iron_with_mongo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zpallin/iron_with_mongo" "work/ex/beta-1.37-6/sources/1.36.0/gh/zpallin/iron_with_mongo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/zpallin/iron_with_mongo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zpallin/iron_with_mongo" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zpallin/iron_with_mongo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zpallin/iron_with_mongo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c90121caff7d2610bebb9b1470e32a36f22431cd
[INFO] sha for GitHub repo zpallin/iron_with_mongo: c90121caff7d2610bebb9b1470e32a36f22431cd
[INFO] validating manifest of zpallin/iron_with_mongo on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zpallin/iron_with_mongo on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zpallin/iron_with_mongo
[INFO] finished frobbing zpallin/iron_with_mongo
[INFO] frobbed toml for zpallin/iron_with_mongo written to work/ex/beta-1.37-6/sources/1.36.0/gh/zpallin/iron_with_mongo/Cargo.toml
[INFO] started frobbing zpallin/iron_with_mongo
[INFO] finished frobbing zpallin/iron_with_mongo
[INFO] frobbed toml for zpallin/iron_with_mongo written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zpallin/iron_with_mongo/Cargo.toml
[INFO] crate zpallin/iron_with_mongo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing zpallin/iron_with_mongo against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zpallin/iron_with_mongo:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] fb9f1a1ef938114cd04045198632bbf95f138725fd4cc1d66c9fbbd48456b9b3
[INFO] running `"docker" "start" "-a" "fb9f1a1ef938114cd04045198632bbf95f138725fd4cc1d66c9fbbd48456b9b3"`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling matches v0.1.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.2
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling gcc v0.3.38
[INFO] [stderr]    Compiling traitobject v0.0.3
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling traitobject v0.0.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling httparse v1.1.2
[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]    Compiling serde v0.8.16
[INFO] [stderr]    Compiling byteorder v0.3.13
[INFO] [stderr]    Compiling linked-hash-map v0.0.9
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling lazy_static v0.1.16
[INFO] [stderr]    Compiling bufstream v0.1.2
[INFO] [stderr]    Compiling route-recognizer v0.1.11
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling scan_fmt v0.1.1
[INFO] [stderr]    Compiling separator v0.3.1
[INFO] [stderr]    Compiling unsafe-any v0.4.1
[INFO] [stderr]    Compiling unicode-bidi v0.2.3
[INFO] [stderr]    Compiling error v0.1.9
[INFO] [stderr]    Compiling hpack v0.2.0
[INFO] [stderr]    Compiling mime v0.2.2
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling typemap v0.3.3
[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" "fb9f1a1ef938114cd04045198632bbf95f138725fd4cc1d66c9fbbd48456b9b3"`
[INFO] running `"docker" "rm" "-f" "fb9f1a1ef938114cd04045198632bbf95f138725fd4cc1d66c9fbbd48456b9b3"`
[INFO] [stdout] fb9f1a1ef938114cd04045198632bbf95f138725fd4cc1d66c9fbbd48456b9b3