Dec 03 04:52:57.300 INFO testing incrust-0.2.15 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 04:52:57.300 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 04:52:57.482 INFO [stdout] 555f0ee1cc94017c4edef58413e13f7a6c925a07abcb309bb648cc82fdc20a90
Dec 03 04:52:57.485 INFO running `"docker" "start" "-a" "555f0ee1cc94017c4edef58413e13f7a6c925a07abcb309bb648cc82fdc20a90"`
Dec 03 04:52:57.915 INFO [stderr] usermod: no changes
Dec 03 04:52:57.966 INFO [stderr]    Compiling marksman_escape v0.1.2
Dec 03 04:53:06.385 INFO [stderr]    Compiling incrust v0.2.15 (/source)
Dec 03 04:53:07.297 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 04:53:07.298 INFO [stderr]  --> src/lib.rs:9:1
Dec 03 04:53:07.298 INFO [stderr]   |
Dec 03 04:53:07.298 INFO [stderr] 9 | #![feature(associated_type_defaults)]
Dec 03 04:53:07.298 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 04:53:07.298 INFO [stderr] 
Dec 03 04:53:07.298 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 04:53:07.298 INFO [stderr]   --> src/lib.rs:10:1
Dec 03 04:53:07.298 INFO [stderr]    |
Dec 03 04:53:07.298 INFO [stderr] 10 | #![feature(box_syntax)]
Dec 03 04:53:07.298 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 04:53:07.298 INFO [stderr] 
Dec 03 04:53:07.298 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 04:53:07.298 INFO [stderr]   --> src/lib.rs:11:1
Dec 03 04:53:07.298 INFO [stderr]    |
Dec 03 04:53:07.298 INFO [stderr] 11 | #![feature(specialization)]
Dec 03 04:53:07.298 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 04:53:07.298 INFO [stderr] 
Dec 03 04:53:07.319 INFO [stderr] error: aborting due to 3 previous errors
Dec 03 04:53:07.319 INFO [stderr] 
Dec 03 04:53:07.319 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 04:53:07.329 INFO [stderr] error: Could not compile `incrust`.
Dec 03 04:53:07.329 INFO [stderr] 
Dec 03 04:53:07.329 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 04:53:07.330 INFO [stderr] su: No module specific data is present
Dec 03 04:53:07.735 INFO running `"docker" "inspect" "555f0ee1cc94017c4edef58413e13f7a6c925a07abcb309bb648cc82fdc20a90"`
Dec 03 04:53:07.845 INFO running `"docker" "rm" "-f" "555f0ee1cc94017c4edef58413e13f7a6c925a07abcb309bb648cc82fdc20a90"`
Dec 03 04:53:07.945 INFO [stdout] 555f0ee1cc94017c4edef58413e13f7a6c925a07abcb309bb648cc82fdc20a90