Dec 02 20:07:28.937 INFO testing rmcmc-0.1.0 against 1.30.1 for beta-1.31-5
Dec 02 20:07:28.937 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 20:07:29.339 INFO [stdout] 95baab4dde65d36704e1afee4fff32293a6fbb786ffa03d30c6ca80a8ff57abb
Dec 02 20:07:29.341 INFO running `"docker" "start" "-a" "95baab4dde65d36704e1afee4fff32293a6fbb786ffa03d30c6ca80a8ff57abb"`
Dec 02 20:07:30.286 INFO [stderr] usermod: no changes
Dec 02 20:07:30.424 INFO [stderr]    Compiling rv v0.4.1
Dec 02 20:07:35.332 INFO [stderr]    Compiling rmcmc v0.1.0 (/source)
Dec 02 20:07:36.999 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:07:36.999 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 20:07:36.999 INFO [stderr]   |
Dec 02 20:07:36.999 INFO [stderr] 1 | #![feature(associated_type_defaults)]
Dec 02 20:07:36.999 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 20:07:36.999 INFO [stderr] 
Dec 02 20:07:36.999 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:07:36.999 INFO [stderr]  --> src/lib.rs:2:1
Dec 02 20:07:36.999 INFO [stderr]   |
Dec 02 20:07:36.999 INFO [stderr] 2 | #![feature(test)]
Dec 02 20:07:36.999 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 02 20:07:36.999 INFO [stderr] 
Dec 02 20:07:36.999 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 20:07:36.999 INFO [stderr] 
Dec 02 20:07:36.999 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:07:37.006 INFO [stderr] error: Could not compile `rmcmc`.
Dec 02 20:07:37.007 INFO [stderr] 
Dec 02 20:07:37.007 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 20:07:37.007 INFO [stderr] su: No module specific data is present
Dec 02 20:07:37.365 INFO running `"docker" "inspect" "95baab4dde65d36704e1afee4fff32293a6fbb786ffa03d30c6ca80a8ff57abb"`
Dec 02 20:07:37.521 INFO running `"docker" "rm" "-f" "95baab4dde65d36704e1afee4fff32293a6fbb786ffa03d30c6ca80a8ff57abb"`
Dec 02 20:07:37.695 INFO [stdout] 95baab4dde65d36704e1afee4fff32293a6fbb786ffa03d30c6ca80a8ff57abb