Dec 03 11:18:04.561 INFO testing futures_future-0.1.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 11:18:04.561 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 11:18:04.718 INFO [stdout] be333612d75eeed38fbffa69e3e97fc9b7082626d7c3807fb5d3eb65f9e90f4c
Dec 03 11:18:04.723 INFO running `"docker" "start" "-a" "be333612d75eeed38fbffa69e3e97fc9b7082626d7c3807fb5d3eb65f9e90f4c"`
Dec 03 11:18:05.319 INFO [stderr] usermod: no changes
Dec 03 11:18:05.355 INFO [stderr]    Compiling futures_future v0.1.1 (/source)
Dec 03 11:18:05.926 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 11:18:05.926 INFO [stderr]  --> src/lib.rs:1:1
Dec 03 11:18:05.926 INFO [stderr]   |
Dec 03 11:18:05.926 INFO [stderr] 1 | #![feature(pin)]
Dec 03 11:18:05.926 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 03 11:18:05.926 INFO [stderr] 
Dec 03 11:18:05.926 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 11:18:05.926 INFO [stderr]  --> src/lib.rs:2:1
Dec 03 11:18:05.926 INFO [stderr]   |
Dec 03 11:18:05.926 INFO [stderr] 2 | #![feature(arbitrary_self_types)]
Dec 03 11:18:05.927 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 11:18:05.927 INFO [stderr] 
Dec 03 11:18:05.927 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 11:18:05.927 INFO [stderr]  --> src/lib.rs:3:1
Dec 03 11:18:05.927 INFO [stderr]   |
Dec 03 11:18:05.927 INFO [stderr] 3 | #![feature(futures_api)]
Dec 03 11:18:05.927 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 11:18:05.927 INFO [stderr] 
Dec 03 11:18:05.927 INFO [stderr] error: aborting due to 3 previous errors
Dec 03 11:18:05.927 INFO [stderr] 
Dec 03 11:18:05.927 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 11:18:05.929 INFO [stderr] error: Could not compile `futures_future`.
Dec 03 11:18:05.929 INFO [stderr] 
Dec 03 11:18:05.929 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 11:18:05.930 INFO [stderr] su: No module specific data is present
Dec 03 11:18:06.190 INFO running `"docker" "inspect" "be333612d75eeed38fbffa69e3e97fc9b7082626d7c3807fb5d3eb65f9e90f4c"`
Dec 03 11:18:06.300 INFO running `"docker" "rm" "-f" "be333612d75eeed38fbffa69e3e97fc9b7082626d7c3807fb5d3eb65f9e90f4c"`
Dec 03 11:18:06.484 INFO [stdout] be333612d75eeed38fbffa69e3e97fc9b7082626d7c3807fb5d3eb65f9e90f4c