Dec 01 08:03:17.285 INFO testing nakakura/tokio_udp_sendrecv_example against 1.30.1 for beta-1.31-5
Dec 01 08:03:17.287 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 01 08:03:17.743 INFO [stdout] 9a6c7cc2f5c7d29009e95bd1ab07db14bfe7fe205fb9cb78a7eb87d2b00a7bb4
Dec 01 08:03:17.748 INFO running `"docker" "start" "-a" "9a6c7cc2f5c7d29009e95bd1ab07db14bfe7fe205fb9cb78a7eb87d2b00a7bb4"`
Dec 01 08:03:18.751 INFO [stderr] usermod: no changes
Dec 01 08:03:18.835 INFO [stderr]    Compiling net2 v0.2.32
Dec 01 08:03:18.836 INFO [stderr]    Compiling tokio-io v0.1.6
Dec 01 08:03:18.837 INFO [stderr]    Compiling tokio-threadpool v0.1.3
Dec 01 08:03:20.087 INFO [stderr]    Compiling mio v0.6.14
Dec 01 08:03:23.427 INFO [stderr]    Compiling tokio-fs v0.1.0
Dec 01 08:03:24.887 INFO [stderr]    Compiling tokio-reactor v0.1.1
Dec 01 08:03:26.995 INFO [stderr]    Compiling tokio-udp v0.1.0
Dec 01 08:03:26.995 INFO [stderr]    Compiling tokio-tcp v0.1.0
Dec 01 08:03:28.963 INFO [stderr]    Compiling tokio v0.1.6
Dec 01 08:03:31.183 INFO [stderr]    Compiling udp_sendrecv_tokio v0.1.0 (/source)
Dec 01 08:03:31.999 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 08:03:32.000 INFO [stderr]  --> src/main.rs:1:1
Dec 01 08:03:32.000 INFO [stderr]   |
Dec 01 08:03:32.000 INFO [stderr] 1 | #![feature(drain_filter)]
Dec 01 08:03:32.000 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 08:03:32.000 INFO [stderr] 
Dec 01 08:03:32.000 INFO [stderr] error: aborting due to previous error
Dec 01 08:03:32.000 INFO [stderr] 
Dec 01 08:03:32.000 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 08:03:32.000 INFO [stderr] error: Could not compile `udp_sendrecv_tokio`.
Dec 01 08:03:32.000 INFO [stderr] 
Dec 01 08:03:32.000 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 08:03:32.013 INFO [stderr] su: No module specific data is present
Dec 01 08:03:32.687 INFO running `"docker" "inspect" "9a6c7cc2f5c7d29009e95bd1ab07db14bfe7fe205fb9cb78a7eb87d2b00a7bb4"`
Dec 01 08:03:32.905 INFO running `"docker" "rm" "-f" "9a6c7cc2f5c7d29009e95bd1ab07db14bfe7fe205fb9cb78a7eb87d2b00a7bb4"`
Dec 01 08:03:33.235 INFO [stdout] 9a6c7cc2f5c7d29009e95bd1ab07db14bfe7fe205fb9cb78a7eb87d2b00a7bb4
