Dec 02 22:33:52.641 INFO testing pixel-0.1.3 against 1.30.1 for beta-1.31-5
Dec 02 22:33:52.641 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 02 22:33:52.879 INFO [stdout] 0d6d10c816e2f4b3d02f1124796d0810402e51e7e51372f4ba58525d9b18e25d
Dec 02 22:33:52.883 INFO running `"docker" "start" "-a" "0d6d10c816e2f4b3d02f1124796d0810402e51e7e51372f4ba58525d9b18e25d"`
Dec 02 22:33:53.556 INFO [stderr] usermod: no changes
Dec 02 22:33:53.595 INFO [stderr]    Compiling pixel v0.1.3 (/source)
Dec 02 22:33:54.202 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 22:33:54.203 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 22:33:54.203 INFO [stderr]   |
Dec 02 22:33:54.203 INFO [stderr] 1 | #![feature(core)]
Dec 02 22:33:54.207 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 02 22:33:54.207 INFO [stderr] 
Dec 02 22:33:54.207 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 22:33:54.207 INFO [stderr]  --> src/lib.rs:2:1
Dec 02 22:33:54.207 INFO [stderr]   |
Dec 02 22:33:54.207 INFO [stderr] 2 | #![feature(unboxed_closures)]
Dec 02 22:33:54.207 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 22:33:54.207 INFO [stderr] 
Dec 02 22:33:54.207 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 22:33:54.207 INFO [stderr] 
Dec 02 22:33:54.207 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 22:33:54.207 INFO [stderr] error: Could not compile `pixel`.
Dec 02 22:33:54.207 INFO [stderr] 
Dec 02 22:33:54.207 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 22:33:54.207 INFO [stderr] su: No module specific data is present
Dec 02 22:33:54.592 INFO running `"docker" "inspect" "0d6d10c816e2f4b3d02f1124796d0810402e51e7e51372f4ba58525d9b18e25d"`
Dec 02 22:33:54.759 INFO running `"docker" "rm" "-f" "0d6d10c816e2f4b3d02f1124796d0810402e51e7e51372f4ba58525d9b18e25d"`
Dec 02 22:33:54.869 INFO [stdout] 0d6d10c816e2f4b3d02f1124796d0810402e51e7e51372f4ba58525d9b18e25d