Dec 02 09:56:13.078 INFO testing 3541/bt against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 09:56:13.078 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 09:56:13.368 INFO [stdout] afbf7fec7a421893abf246f82264bac71d9a58991167f6bb3105c421e2949ee6
Dec 02 09:56:13.372 INFO running `"docker" "start" "-a" "afbf7fec7a421893abf246f82264bac71d9a58991167f6bb3105c421e2949ee6"`
Dec 02 09:56:14.393 INFO [stderr] usermod: no changes
Dec 02 09:56:14.471 INFO [stderr]    Compiling bt v0.1.0 (/source)
Dec 02 09:56:15.071 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 09:56:15.071 INFO [stderr]  --> src/main.rs:2:1
Dec 02 09:56:15.071 INFO [stderr]   |
Dec 02 09:56:15.071 INFO [stderr] 2 | #![feature(core_intrinsics)]
Dec 02 09:56:15.071 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:56:15.071 INFO [stderr] 
Dec 02 09:56:15.071 INFO [stderr] error: aborting due to previous error
Dec 02 09:56:15.071 INFO [stderr] 
Dec 02 09:56:15.071 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 09:56:15.074 INFO [stderr] error: Could not compile `bt`.
Dec 02 09:56:15.074 INFO [stderr] 
Dec 02 09:56:15.074 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 09:56:15.074 INFO [stderr] su: No module specific data is present
Dec 02 09:56:15.792 INFO running `"docker" "inspect" "afbf7fec7a421893abf246f82264bac71d9a58991167f6bb3105c421e2949ee6"`
Dec 02 09:56:16.124 INFO running `"docker" "rm" "-f" "afbf7fec7a421893abf246f82264bac71d9a58991167f6bb3105c421e2949ee6"`
Dec 02 09:56:16.447 INFO [stdout] afbf7fec7a421893abf246f82264bac71d9a58991167f6bb3105c421e2949ee6