Dec 03 13:39:03.704 INFO testing driverkit-0.2.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 13:39:03.704 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 13:39:03.977 INFO [stdout] e7dac972c279251b490c7be15b755da5eb6773b453a9e2f4150f382fd0943043
Dec 03 13:39:03.979 INFO running `"docker" "start" "-a" "e7dac972c279251b490c7be15b755da5eb6773b453a9e2f4150f382fd0943043"`
Dec 03 13:39:04.542 INFO [stderr] usermod: no changes
Dec 03 13:39:04.608 INFO [stderr]    Compiling x86 v0.11.0
Dec 03 13:39:04.609 INFO [stderr]    Compiling raw-cpuid v6.1.0
Dec 03 13:39:08.744 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 13:39:08.744 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/x86-0.11.0/src/lib.rs:2:1
Dec 03 13:39:08.744 INFO [stderr]   |
Dec 03 13:39:08.744 INFO [stderr] 2 | #![feature(const_fn)]
Dec 03 13:39:08.744 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 03 13:39:08.744 INFO [stderr] 
Dec 03 13:39:08.744 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 13:39:08.744 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/x86-0.11.0/src/lib.rs:3:1
Dec 03 13:39:08.744 INFO [stderr]   |
Dec 03 13:39:08.744 INFO [stderr] 3 | #![feature(asm)]
Dec 03 13:39:08.744 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 03 13:39:08.744 INFO [stderr] 
Dec 03 13:39:08.766 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 13:39:08.766 INFO [stderr] 
Dec 03 13:39:08.766 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 13:39:08.774 INFO [stderr] error: Could not compile `x86`.
Dec 03 13:39:08.775 INFO [stderr] 
Dec 03 13:39:08.775 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 13:39:08.775 INFO [stderr] su: No module specific data is present
Dec 03 13:39:09.135 INFO running `"docker" "inspect" "e7dac972c279251b490c7be15b755da5eb6773b453a9e2f4150f382fd0943043"`
Dec 03 13:39:09.217 INFO running `"docker" "rm" "-f" "e7dac972c279251b490c7be15b755da5eb6773b453a9e2f4150f382fd0943043"`
Dec 03 13:39:09.316 INFO [stdout] e7dac972c279251b490c7be15b755da5eb6773b453a9e2f4150f382fd0943043