[INFO] updating cached repository dbrugman/mandelrust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dbrugman/mandelrust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dbrugman/mandelrust" "work/ex/beta-1.38-1/sources/1.37.0/gh/dbrugman/mandelrust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dbrugman/mandelrust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dbrugman/mandelrust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dbrugman/mandelrust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dbrugman/mandelrust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 552277cd98ce2e8a0ed17d0f6a9750af37c62aaf
[INFO] sha for GitHub repo dbrugman/mandelrust: 552277cd98ce2e8a0ed17d0f6a9750af37c62aaf
[INFO] validating manifest of dbrugman/mandelrust 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 dbrugman/mandelrust 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 dbrugman/mandelrust
[INFO] finished frobbing dbrugman/mandelrust
[INFO] frobbed toml for dbrugman/mandelrust written to work/ex/beta-1.38-1/sources/1.37.0/gh/dbrugman/mandelrust/Cargo.toml
[INFO] started frobbing dbrugman/mandelrust
[INFO] finished frobbing dbrugman/mandelrust
[INFO] frobbed toml for dbrugman/mandelrust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dbrugman/mandelrust/Cargo.toml
[INFO] crate dbrugman/mandelrust 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 dbrugman/mandelrust 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dbrugman/mandelrust:/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] 2e5c081311812ed4694d06d4d6108168ef6d70ae5e9455bf570054015f3a54cc
[INFO] running `"docker" "start" "-a" "2e5c081311812ed4694d06d4d6108168ef6d70ae5e9455bf570054015f3a54cc"`
[INFO] [stderr]    Compiling serde v0.8.12
[INFO] [stderr]    Compiling libc v0.2.16
[INFO] [stderr]    Compiling gcc v0.3.35
[INFO] [stderr]    Compiling lazy_static v0.2.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling odds v0.2.22
[INFO] [stderr]    Compiling shader_version v0.2.1
[INFO] [stderr]    Compiling piston-shaders_graphics2d v0.2.1
[INFO] [stderr]    Compiling x11-dl v2.9.0
[INFO] [stderr]    Compiling piston-viewport v0.2.0
[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]    Compiling vecmath v0.2.0
[INFO] [stderr]    Compiling wayland-scanner v0.5.11
[INFO] [stderr]    Compiling gfx_core v0.4.0
[INFO] [stderr]    Compiling piston2d-graphics v0.17.3
[INFO] [stderr]    Compiling gl v0.6.1
[INFO] [stderr]    Compiling glutin v0.6.1
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling nodrop v0.1.8
[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" "2e5c081311812ed4694d06d4d6108168ef6d70ae5e9455bf570054015f3a54cc"`
[INFO] running `"docker" "rm" "-f" "2e5c081311812ed4694d06d4d6108168ef6d70ae5e9455bf570054015f3a54cc"`
[INFO] [stdout] 2e5c081311812ed4694d06d4d6108168ef6d70ae5e9455bf570054015f3a54cc