[INFO] updating cached repository https://github.com/dbrugman/mandelrust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 552277cd98ce2e8a0ed17d0f6a9750af37c62aaf
[INFO] testing dbrugman/mandelrust against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrugman%2Fmandelrust" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dbrugman/mandelrust on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dbrugman/mandelrust
[INFO] finished tweaking git repo https://github.com/dbrugman/mandelrust
[INFO] tweaked toml for git repo https://github.com/dbrugman/mandelrust written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/dbrugman/mandelrust already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] c2201ca8fbdbe027eabc56cd789988448b08a0377a6acb9b3f7152c1b749b8cc
[INFO] running `"docker" "start" "-a" "c2201ca8fbdbe027eabc56cd789988448b08a0377a6acb9b3f7152c1b749b8cc"`
[INFO] [stderr]    Compiling libc v0.2.16
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling serde v0.8.12
[INFO] [stderr]    Compiling lazy_static v0.2.1
[INFO] [stderr]    Compiling gcc v0.3.35
[INFO] [stderr]    Compiling odds v0.2.22
[INFO] [stderr]    Compiling x11-dl v2.9.0
[INFO] [stderr]    Compiling gl_generator v0.5.2
[INFO] [stderr]    Compiling wayland-scanner v0.5.11
[INFO] [stderr]    Compiling piston2d-graphics v0.17.3
[INFO] [stderr]    Compiling gfx v0.12.1
[INFO] [stderr] error[E0642]: patterns aren't allowed in methods without bodies
[INFO] [stderr]    --> /opt/rustwide/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 nodrop v0.1.8
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling arrayvec v0.3.20
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]    Compiling memmap v0.2.3
[INFO] [stderr]    Compiling wayland-client v0.5.12
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rusttype v0.2.1
[INFO] [stderr]    Compiling deque v0.3.1
[INFO] [stderr]    Compiling tempfile v2.1.4
[INFO] [stderr]    Compiling gl v0.6.1
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0642`.
[INFO] [stderr]    Compiling glutin v0.6.1
[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" "c2201ca8fbdbe027eabc56cd789988448b08a0377a6acb9b3f7152c1b749b8cc"`
[INFO] running `"docker" "rm" "-f" "c2201ca8fbdbe027eabc56cd789988448b08a0377a6acb9b3f7152c1b749b8cc"`
[INFO] [stdout] c2201ca8fbdbe027eabc56cd789988448b08a0377a6acb9b3f7152c1b749b8cc