[INFO] fetching crate gridsim-ui 0.4.1...
[INFO] extracting crate gridsim-ui 0.4.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/gridsim-ui/0.4.1
[INFO] extracting crate gridsim-ui 0.4.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gridsim-ui/0.4.1
[INFO] validating manifest of gridsim-ui-0.4.1 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 gridsim-ui-0.4.1 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 gridsim-ui-0.4.1
[INFO] finished frobbing gridsim-ui-0.4.1
[INFO] frobbed toml for gridsim-ui-0.4.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/gridsim-ui/0.4.1/Cargo.toml
[INFO] started frobbing gridsim-ui-0.4.1
[INFO] finished frobbing gridsim-ui-0.4.1
[INFO] frobbed toml for gridsim-ui-0.4.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gridsim-ui/0.4.1/Cargo.toml
[INFO] crate gridsim-ui-0.4.1 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gridsim v0.3.2
[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 gridsim-ui-0.4.1 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-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gridsim-ui/0.4.1:/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] 2fcaf4f2007afd15f88cb1e1b8932305bd6c706786e1d117a63bfa9c6df116fe
[INFO] running `"docker" "start" "-a" "2fcaf4f2007afd15f88cb1e1b8932305bd6c706786e1d117a63bfa9c6df116fe"`
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling enum-iterator-derive v0.1.1
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling rusttype v0.7.7
[INFO] [stderr]    Compiling wayland-sys v0.21.13
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling wayland-commons v0.21.13
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling glium v0.25.1
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling gridsim v0.3.2
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gridsim-0.3.2/src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(test)]
[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 E0554`.
[INFO] [stderr] error: Could not compile `gridsim`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2fcaf4f2007afd15f88cb1e1b8932305bd6c706786e1d117a63bfa9c6df116fe"`
[INFO] running `"docker" "rm" "-f" "2fcaf4f2007afd15f88cb1e1b8932305bd6c706786e1d117a63bfa9c6df116fe"`
[INFO] [stdout] 2fcaf4f2007afd15f88cb1e1b8932305bd6c706786e1d117a63bfa9c6df116fe