Dec 02 23:49:57.987 INFO testing open189-0.1.1 against 1.30.1 for beta-1.31-5
Dec 02 23:49:57.987 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 23:49:58.371 INFO [stdout] 2ec5cc91bd6c9a2b1af9c0e02eccc5dba9ef1818a5641cd42f0340634102c92a
Dec 02 23:49:58.373 INFO running `"docker" "start" "-a" "2ec5cc91bd6c9a2b1af9c0e02eccc5dba9ef1818a5641cd42f0340634102c92a"`
Dec 02 23:50:00.330 INFO [stderr] usermod: no changes
Dec 02 23:50:00.600 INFO [stderr]    Compiling serde_codegen v0.8.23
Dec 02 23:50:00.600 INFO [stderr]    Compiling error-chain v0.7.2
Dec 02 23:50:04.085 INFO [stderr]    Compiling serde_derive v0.8.23
Dec 02 23:50:08.635 INFO [stderr]    Compiling open189 v0.1.1 (/source)
Dec 02 23:50:12.795 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 23:50:12.795 INFO [stderr]  --> src/lib.rs:3:1
Dec 02 23:50:12.795 INFO [stderr]   |
Dec 02 23:50:12.795 INFO [stderr] 3 | #![feature(proc_macro)]
Dec 02 23:50:12.795 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 23:50:12.795 INFO [stderr] 
Dec 02 23:50:12.795 INFO [stderr] error: aborting due to previous error
Dec 02 23:50:12.795 INFO [stderr] 
Dec 02 23:50:12.795 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 23:50:12.816 INFO [stderr] error: Could not compile `open189`.
Dec 02 23:50:12.816 INFO [stderr] 
Dec 02 23:50:12.816 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 23:50:12.816 INFO [stderr] su: No module specific data is present
Dec 02 23:50:13.341 INFO running `"docker" "inspect" "2ec5cc91bd6c9a2b1af9c0e02eccc5dba9ef1818a5641cd42f0340634102c92a"`
Dec 02 23:50:13.546 INFO running `"docker" "rm" "-f" "2ec5cc91bd6c9a2b1af9c0e02eccc5dba9ef1818a5641cd42f0340634102c92a"`
Dec 02 23:50:13.794 INFO [stdout] 2ec5cc91bd6c9a2b1af9c0e02eccc5dba9ef1818a5641cd42f0340634102c92a