Dec 03 11:21:24.420 INFO testing futures-bufio-0.2.0 against 1.30.1 for beta-1.31-5
Dec 03 11:21:24.420 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 03 11:21:24.813 INFO [stdout] 1536144c8d2de10e59c32ef9c980eb92413d1e37863f3db00240b5fa2ec26a30
Dec 03 11:21:24.816 INFO running `"docker" "start" "-a" "1536144c8d2de10e59c32ef9c980eb92413d1e37863f3db00240b5fa2ec26a30"`
Dec 03 11:21:25.767 INFO [stderr] usermod: no changes
Dec 03 11:21:25.818 INFO [stderr]    Compiling futures-bufio v0.2.0 (/source)
Dec 03 11:21:26.675 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 11:21:26.675 INFO [stderr]   --> src/lib.rs:10:1
Dec 03 11:21:26.675 INFO [stderr]    |
Dec 03 11:21:26.675 INFO [stderr] 10 | #![feature(conservative_impl_trait)]
Dec 03 11:21:26.675 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 11:21:26.675 INFO [stderr] 
Dec 03 11:21:26.675 INFO [stderr] error: aborting due to previous error
Dec 03 11:21:26.675 INFO [stderr] 
Dec 03 11:21:26.675 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 11:21:26.678 INFO [stderr] error: Could not compile `futures-bufio`.
Dec 03 11:21:26.679 INFO [stderr] 
Dec 03 11:21:26.679 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 11:21:26.680 INFO [stderr] su: No module specific data is present
Dec 03 11:21:26.952 INFO running `"docker" "inspect" "1536144c8d2de10e59c32ef9c980eb92413d1e37863f3db00240b5fa2ec26a30"`
Dec 03 11:21:27.040 INFO running `"docker" "rm" "-f" "1536144c8d2de10e59c32ef9c980eb92413d1e37863f3db00240b5fa2ec26a30"`
Dec 03 11:21:27.137 INFO [stdout] 1536144c8d2de10e59c32ef9c980eb92413d1e37863f3db00240b5fa2ec26a30
