Dec 02 22:49:45.920 INFO testing pf_sandbox_lib-0.2.0 against 1.30.1 for beta-1.31-5
Dec 02 22:49:45.920 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 22:49:46.320 INFO [stdout] c68818c77ab9e5fe3731abbfc57cea47d2104e017f6932a23274257477a6d562
Dec 02 22:49:46.324 INFO running `"docker" "start" "-a" "c68818c77ab9e5fe3731abbfc57cea47d2104e017f6932a23274257477a6d562"`
Dec 02 22:49:47.255 INFO [stderr] usermod: no changes
Dec 02 22:49:47.799 INFO [stderr]    Compiling pf_sandbox_lib v0.2.0 (/source)
Dec 02 22:49:47.799 INFO [stderr]    Compiling enum_traits v0.3.0
Dec 02 22:49:47.823 INFO [stderr]    Compiling smallvec v0.6.7
Dec 02 22:49:47.823 INFO [stderr]    Compiling wayland-client v0.21.7
Dec 02 22:49:47.838 INFO [stderr]    Compiling enum_traits_macros v2.0.0
Dec 02 22:49:47.843 INFO [stderr]    Compiling bzip2-sys v0.1.7
Dec 02 22:49:47.851 INFO [stderr]    Compiling libudev-sys v0.1.4
Dec 02 22:49:47.851 INFO [stderr]    Compiling uuid v0.7.1
Dec 02 22:49:47.875 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Dec 02 22:49:47.875 INFO [stderr] 
Dec 02 22:49:47.925 INFO [stderr] error: Could not compile `pf_sandbox_lib`.
Dec 02 22:49:47.925 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 22:49:50.351 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 22:49:50.351 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/enum_traits-0.3.0/src/lib.rs:5:1
Dec 02 22:49:50.351 INFO [stderr]   |
Dec 02 22:49:50.351 INFO [stderr] 5 | #![feature(associated_consts)]
Dec 02 22:49:50.351 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 22:49:50.359 INFO [stderr] 
Dec 02 22:49:50.359 INFO [stderr] error: aborting due to previous error
Dec 02 22:49:50.359 INFO [stderr] 
Dec 02 22:49:50.359 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 22:49:50.367 INFO [stderr] error: Could not compile `enum_traits`.
Dec 02 22:49:50.367 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 22:49:58.012 INFO [stderr] error: build failed
Dec 02 22:49:58.014 INFO [stderr] su: No module specific data is present
Dec 02 22:49:59.085 INFO running `"docker" "inspect" "c68818c77ab9e5fe3731abbfc57cea47d2104e017f6932a23274257477a6d562"`
Dec 02 22:49:59.291 INFO running `"docker" "rm" "-f" "c68818c77ab9e5fe3731abbfc57cea47d2104e017f6932a23274257477a6d562"`
Dec 02 22:49:59.495 INFO [stdout] c68818c77ab9e5fe3731abbfc57cea47d2104e017f6932a23274257477a6d562