Dec 03 04:24:43.240 INFO testing is_prime-1.0.5 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 04:24:43.240 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 04:24:43.433 INFO [stdout] fdcb4bd0320a7d1a1c037911203fdcafa485ba76b25fac8666edd41b16ffae10
Dec 03 04:24:43.436 INFO running `"docker" "start" "-a" "fdcb4bd0320a7d1a1c037911203fdcafa485ba76b25fac8666edd41b16ffae10"`
Dec 03 04:24:43.852 INFO [stderr] usermod: no changes
Dec 03 04:24:43.928 INFO [stderr]    Compiling ramp v0.5.1
Dec 03 04:24:46.798 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 04:24:46.798 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.1/src/lib.rs:18:1
Dec 03 04:24:46.798 INFO [stderr]    |
Dec 03 04:24:46.798 INFO [stderr] 18 | #![feature(core_intrinsics, asm, allocator_api)]
Dec 03 04:24:46.798 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 04:24:46.798 INFO [stderr] 
Dec 03 04:24:46.798 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 04:24:46.798 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.1/src/lib.rs:19:1
Dec 03 04:24:46.798 INFO [stderr]    |
Dec 03 04:24:46.798 INFO [stderr] 19 | #![feature(step_trait, ptr_internals, alloc, raw_vec_internals)]
Dec 03 04:24:46.798 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 04:24:46.798 INFO [stderr] 
Dec 03 04:24:46.813 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 04:24:46.813 INFO [stderr] 
Dec 03 04:24:46.813 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 04:24:46.822 INFO [stderr] error: Could not compile `ramp`.
Dec 03 04:24:46.822 INFO [stderr] 
Dec 03 04:24:46.822 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 04:24:46.823 INFO [stderr] su: No module specific data is present
Dec 03 04:24:47.123 INFO running `"docker" "inspect" "fdcb4bd0320a7d1a1c037911203fdcafa485ba76b25fac8666edd41b16ffae10"`
Dec 03 04:24:47.351 INFO running `"docker" "rm" "-f" "fdcb4bd0320a7d1a1c037911203fdcafa485ba76b25fac8666edd41b16ffae10"`
Dec 03 04:24:47.533 INFO [stdout] fdcb4bd0320a7d1a1c037911203fdcafa485ba76b25fac8666edd41b16ffae10
