Dec 03 11:20:46.260 INFO testing futures-core-preview-0.3.0-alpha.9 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 11:20:46.260 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 11:20:46.771 INFO [stdout] 984620cd23aaf16fcf3f3d91aecd32047dd82d0d0c4c604616a587f91d9999f4
Dec 03 11:20:46.773 INFO running `"docker" "start" "-a" "984620cd23aaf16fcf3f3d91aecd32047dd82d0d0c4c604616a587f91d9999f4"`
Dec 03 11:20:48.194 INFO [stderr] usermod: no changes
Dec 03 11:20:48.279 INFO [stderr]    Compiling futures-core-preview v0.3.0-alpha.9 (/source)
Dec 03 11:20:48.973 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 11:20:48.973 INFO [stderr]  --> src/lib.rs:3:1
Dec 03 11:20:48.973 INFO [stderr]   |
Dec 03 11:20:48.973 INFO [stderr] 3 | #![feature(pin, arbitrary_self_types, futures_api)]
Dec 03 11:20:48.973 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 11:20:48.973 INFO [stderr] 
Dec 03 11:20:48.975 INFO [stderr] error: aborting due to previous error
Dec 03 11:20:48.975 INFO [stderr] 
Dec 03 11:20:48.975 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 11:20:48.980 INFO [stderr] error: Could not compile `futures-core-preview`.
Dec 03 11:20:48.980 INFO [stderr] 
Dec 03 11:20:48.980 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 11:20:48.987 INFO [stderr] su: No module specific data is present
Dec 03 11:20:49.771 INFO running `"docker" "inspect" "984620cd23aaf16fcf3f3d91aecd32047dd82d0d0c4c604616a587f91d9999f4"`
Dec 03 11:20:50.087 INFO running `"docker" "rm" "-f" "984620cd23aaf16fcf3f3d91aecd32047dd82d0d0c4c604616a587f91d9999f4"`
Dec 03 11:20:50.518 INFO [stdout] 984620cd23aaf16fcf3f3d91aecd32047dd82d0d0c4c604616a587f91d9999f4
