Dec 02 21:12:34.835 INFO testing randen-0.0.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 21:12:34.836 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 02 21:12:35.167 INFO [stdout] b8aae1c97a6dc76046f4464d3147e625f05c3664fc27f11302146db719da93e9
Dec 02 21:12:35.169 INFO running `"docker" "start" "-a" "b8aae1c97a6dc76046f4464d3147e625f05c3664fc27f11302146db719da93e9"`
Dec 02 21:12:36.068 INFO [stderr] usermod: no changes
Dec 02 21:12:36.143 INFO [stderr]    Compiling rand v0.4.3
Dec 02 21:12:36.878 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 21:12:36.879 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.4.3/src/lib.rs:248:39
Dec 02 21:12:36.879 INFO [stderr]     |
Dec 02 21:12:36.879 INFO [stderr] 248 | #![cfg_attr(feature = "i128_support", feature(i128_type, i128))]
Dec 02 21:12:36.879 INFO [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 21:12:36.879 INFO [stderr] 
Dec 02 21:12:36.893 INFO [stderr] error: aborting due to previous error
Dec 02 21:12:36.893 INFO [stderr] 
Dec 02 21:12:36.893 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 21:12:36.902 INFO [stderr] error: Could not compile `rand`.
Dec 02 21:12:36.902 INFO [stderr] 
Dec 02 21:12:36.902 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 21:12:36.915 INFO [stderr] su: No module specific data is present
Dec 02 21:12:37.479 INFO running `"docker" "inspect" "b8aae1c97a6dc76046f4464d3147e625f05c3664fc27f11302146db719da93e9"`
Dec 02 21:12:37.805 INFO running `"docker" "rm" "-f" "b8aae1c97a6dc76046f4464d3147e625f05c3664fc27f11302146db719da93e9"`
Dec 02 21:12:38.072 INFO [stdout] b8aae1c97a6dc76046f4464d3147e625f05c3664fc27f11302146db719da93e9