Dec 03 06:37:28.204 INFO testing greentask-0.2.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 06:37:28.204 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 06:37:28.403 INFO [stdout] b0cb307cf7b8b8ccef1bf6c99cd3b8e2dee800a7cd516ee5a66a41658cf2b0e8
Dec 03 06:37:28.408 INFO running `"docker" "start" "-a" "b0cb307cf7b8b8ccef1bf6c99cd3b8e2dee800a7cd516ee5a66a41658cf2b0e8"`
Dec 03 06:37:28.983 INFO [stderr] usermod: no changes
Dec 03 06:37:29.061 INFO [stderr]    Compiling context v1.0.1
Dec 03 06:37:31.162 INFO [stderr]    Compiling coroutine v0.8.0
Dec 03 06:37:31.861 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 06:37:31.861 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/coroutine-0.8.0/src/lib.rs:25:1
Dec 03 06:37:31.861 INFO [stderr]    |
Dec 03 06:37:31.861 INFO [stderr] 25 | #![feature(fnbox)]
Dec 03 06:37:31.861 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 03 06:37:31.861 INFO [stderr] 
Dec 03 06:37:31.861 INFO [stderr] error: aborting due to previous error
Dec 03 06:37:31.861 INFO [stderr] 
Dec 03 06:37:31.861 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 06:37:31.861 INFO [stderr] error: Could not compile `coroutine`.
Dec 03 06:37:31.861 INFO [stderr] 
Dec 03 06:37:31.862 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 06:37:31.862 INFO [stderr] su: No module specific data is present
Dec 03 06:37:32.160 INFO running `"docker" "inspect" "b0cb307cf7b8b8ccef1bf6c99cd3b8e2dee800a7cd516ee5a66a41658cf2b0e8"`
Dec 03 06:37:32.355 INFO running `"docker" "rm" "-f" "b0cb307cf7b8b8ccef1bf6c99cd3b8e2dee800a7cd516ee5a66a41658cf2b0e8"`
Dec 03 06:37:32.527 INFO [stdout] b0cb307cf7b8b8ccef1bf6c99cd3b8e2dee800a7cd516ee5a66a41658cf2b0e8