Dec 02 21:22:34.400 INFO testing quickcheck_macros-0.7.0 against 1.30.1 for beta-1.31-5
Dec 02 21:22:34.400 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 21:22:34.623 INFO [stdout] f335c475bc5b2631f312f0203f28f7b7fac8222ad732ba726c459bb6a469543f
Dec 02 21:22:34.632 INFO running `"docker" "start" "-a" "f335c475bc5b2631f312f0203f28f7b7fac8222ad732ba726c459bb6a469543f"`
Dec 02 21:22:35.518 INFO [stderr] usermod: no changes
Dec 02 21:22:35.627 INFO [stderr]    Compiling env_logger v0.5.13
Dec 02 21:22:38.631 INFO [stderr]    Compiling quickcheck v0.7.2
Dec 02 21:22:42.883 INFO [stderr]    Compiling quickcheck_macros v0.7.0 (/source)
Dec 02 21:22:48.358 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 21:22:48.358 INFO [stderr]  --> src/lib.rs:8:1
Dec 02 21:22:48.358 INFO [stderr]   |
Dec 02 21:22:48.359 INFO [stderr] 8 | #![feature(plugin_registrar, rustc_private)]
Dec 02 21:22:48.359 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 21:22:48.359 INFO [stderr] 
Dec 02 21:22:48.360 INFO [stderr] error: aborting due to previous error
Dec 02 21:22:48.360 INFO [stderr] 
Dec 02 21:22:48.360 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 21:22:48.381 INFO [stderr] error: Could not compile `quickcheck_macros`.
Dec 02 21:22:48.381 INFO [stderr] 
Dec 02 21:22:48.381 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 21:22:48.383 INFO [stderr] su: No module specific data is present
Dec 02 21:22:49.447 INFO running `"docker" "inspect" "f335c475bc5b2631f312f0203f28f7b7fac8222ad732ba726c459bb6a469543f"`
Dec 02 21:22:49.721 INFO running `"docker" "rm" "-f" "f335c475bc5b2631f312f0203f28f7b7fac8222ad732ba726c459bb6a469543f"`
Dec 02 21:22:50.071 INFO [stdout] f335c475bc5b2631f312f0203f28f7b7fac8222ad732ba726c459bb6a469543f