Dec 03 14:47:29.052 INFO testing css-purify-0.0.15 against 1.30.1 for beta-1.31-5
Dec 03 14:47:29.052 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 03 14:47:29.501 INFO [stdout] 862ba6680f2209fe27bb536102c6126e7fbf31da985cfca266f96a77ee875f39
Dec 03 14:47:29.503 INFO running `"docker" "start" "-a" "862ba6680f2209fe27bb536102c6126e7fbf31da985cfca266f96a77ee875f39"`
Dec 03 14:47:30.557 INFO [stderr] usermod: no changes
Dec 03 14:47:30.771 INFO [stderr]    Compiling cssparser v0.21.3
Dec 03 14:47:30.771 INFO [stderr]    Compiling phf_macros v0.7.23
Dec 03 14:47:30.771 INFO [stderr]    Compiling string_cache v0.6.2
Dec 03 14:47:30.771 INFO [stderr]    Compiling markup5ever v0.6.2
Dec 03 14:47:30.771 INFO [stderr]    Compiling cssparser-macros v0.3.5
Dec 03 14:47:30.771 INFO [stderr]    Compiling css v0.0.22
Dec 03 14:47:43.226 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 14:47:43.226 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/phf_macros-0.7.23/src/lib.rs:34:1
Dec 03 14:47:43.226 INFO [stderr]    |
Dec 03 14:47:43.226 INFO [stderr] 34 | #![feature(plugin_registrar, quote, rustc_private)]
Dec 03 14:47:43.226 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 14:47:43.226 INFO [stderr] 
Dec 03 14:47:43.231 INFO [stderr] error: aborting due to previous error
Dec 03 14:47:43.231 INFO [stderr] 
Dec 03 14:47:43.231 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 14:47:43.239 INFO [stderr] error: Could not compile `phf_macros`.
Dec 03 14:47:43.240 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 14:47:44.291 INFO [stderr] error: build failed
Dec 03 14:47:44.292 INFO [stderr] su: No module specific data is present
Dec 03 14:47:44.543 INFO running `"docker" "inspect" "862ba6680f2209fe27bb536102c6126e7fbf31da985cfca266f96a77ee875f39"`
Dec 03 14:47:44.668 INFO running `"docker" "rm" "-f" "862ba6680f2209fe27bb536102c6126e7fbf31da985cfca266f96a77ee875f39"`
Dec 03 14:47:44.843 INFO [stdout] 862ba6680f2209fe27bb536102c6126e7fbf31da985cfca266f96a77ee875f39