Nov 30 19:26:16.204 INFO testing yymm/rust-exercise against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Nov 30 19:26:16.204 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"`
Nov 30 19:26:16.666 INFO [stdout] 1737ac0568835bbda651f52b9b6d68a92b2bc4b5af5c9754c2b42d7bb9c4d42e
Nov 30 19:26:16.671 INFO running `"docker" "start" "-a" "1737ac0568835bbda651f52b9b6d68a92b2bc4b5af5c9754c2b42d7bb9c4d42e"`
Nov 30 19:26:17.890 INFO [stderr] usermod: no changes
Nov 30 19:26:17.943 INFO [stderr]    Compiling exercise v0.1.0 (/source)
Nov 30 19:26:18.129 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Nov 30 19:26:18.129 INFO [stderr]  --> src/lib.rs:1:1
Nov 30 19:26:18.130 INFO [stderr]   |
Nov 30 19:26:18.130 INFO [stderr] 1 | #![feature(test)]
Nov 30 19:26:18.130 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Nov 30 19:26:18.130 INFO [stderr] 
Nov 30 19:26:18.131 INFO [stderr] error: aborting due to previous error
Nov 30 19:26:18.131 INFO [stderr] 
Nov 30 19:26:18.131 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Nov 30 19:26:18.134 INFO [stderr] error: Could not compile `exercise`.
Nov 30 19:26:18.134 INFO [stderr] 
Nov 30 19:26:18.134 INFO [stderr] To learn more, run the command again with --verbose.
Nov 30 19:26:18.136 INFO [stderr] su: No module specific data is present
Nov 30 19:26:18.789 INFO running `"docker" "inspect" "1737ac0568835bbda651f52b9b6d68a92b2bc4b5af5c9754c2b42d7bb9c4d42e"`
Nov 30 19:26:19.043 INFO running `"docker" "rm" "-f" "1737ac0568835bbda651f52b9b6d68a92b2bc4b5af5c9754c2b42d7bb9c4d42e"`
Nov 30 19:26:19.407 INFO [stdout] 1737ac0568835bbda651f52b9b6d68a92b2bc4b5af5c9754c2b42d7bb9c4d42e
