Dec 03 11:21:27.732 INFO testing futures-await-test-0.1.6 against 1.30.1 for beta-1.31-5
Dec 03 11:21:27.732 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 11:21:28.147 INFO [stdout] bbf9c3a613f9c5c45d72fb9f0679a990aa760bd7c953dbd399370b50d588b5d3
Dec 03 11:21:28.158 INFO running `"docker" "start" "-a" "bbf9c3a613f9c5c45d72fb9f0679a990aa760bd7c953dbd399370b50d588b5d3"`
Dec 03 11:21:28.935 INFO [stderr] usermod: no changes
Dec 03 11:21:28.998 INFO [stderr]    Compiling syn v0.14.9
Dec 03 11:21:45.494 INFO [stderr]    Compiling futures-await-test v0.1.6 (/source)
Dec 03 11:21:49.127 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 11:21:49.127 INFO [stderr]  --> src/lib.rs:1:1
Dec 03 11:21:49.127 INFO [stderr]   |
Dec 03 11:21:49.127 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 03 11:21:49.127 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 11:21:49.127 INFO [stderr] 
Dec 03 11:21:49.127 INFO [stderr] error: aborting due to previous error
Dec 03 11:21:49.127 INFO [stderr] 
Dec 03 11:21:49.127 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 11:21:49.132 INFO [stderr] error: Could not compile `futures-await-test`.
Dec 03 11:21:49.132 INFO [stderr] 
Dec 03 11:21:49.132 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 11:21:49.134 INFO [stderr] su: No module specific data is present
Dec 03 11:21:49.428 INFO running `"docker" "inspect" "bbf9c3a613f9c5c45d72fb9f0679a990aa760bd7c953dbd399370b50d588b5d3"`
Dec 03 11:21:49.502 INFO running `"docker" "rm" "-f" "bbf9c3a613f9c5c45d72fb9f0679a990aa760bd7c953dbd399370b50d588b5d3"`
Dec 03 11:21:49.616 INFO [stdout] bbf9c3a613f9c5c45d72fb9f0679a990aa760bd7c953dbd399370b50d588b5d3