Dec 03 02:38:00.623 INFO testing lock-free-multi-producer-single-consumer-ring-buffer-0.2.0 against 1.30.1 for beta-1.31-5
Dec 03 02:38:00.623 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 03 02:38:00.882 INFO [stdout] 02333a43a2daefbc999d162d4d8d662310aa7f02b8683470f474d385ed02d31f
Dec 03 02:38:00.884 INFO running `"docker" "start" "-a" "02333a43a2daefbc999d162d4d8d662310aa7f02b8683470f474d385ed02d31f"`
Dec 03 02:38:01.379 INFO [stderr] usermod: no changes
Dec 03 02:38:01.408 INFO [stderr]    Compiling lock-free-multi-producer-single-consumer-ring-buffer v0.2.0 (/source)
Dec 03 02:38:02.059 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 02:38:02.059 INFO [stderr]  --> src/lib.rs:7:1
Dec 03 02:38:02.059 INFO [stderr]   |
Dec 03 02:38:02.059 INFO [stderr] 7 | #![feature(allocator_api, core_intrinsics)]
Dec 03 02:38:02.059 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 02:38:02.059 INFO [stderr] 
Dec 03 02:38:02.059 INFO [stderr] error: aborting due to previous error
Dec 03 02:38:02.059 INFO [stderr] 
Dec 03 02:38:02.059 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 02:38:02.067 INFO [stderr] error: Could not compile `lock-free-multi-producer-single-consumer-ring-buffer`.
Dec 03 02:38:02.067 INFO [stderr] 
Dec 03 02:38:02.067 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 02:38:02.069 INFO [stderr] su: No module specific data is present
Dec 03 02:38:02.484 INFO running `"docker" "inspect" "02333a43a2daefbc999d162d4d8d662310aa7f02b8683470f474d385ed02d31f"`
Dec 03 02:38:02.580 INFO running `"docker" "rm" "-f" "02333a43a2daefbc999d162d4d8d662310aa7f02b8683470f474d385ed02d31f"`
Dec 03 02:38:02.685 INFO [stdout] 02333a43a2daefbc999d162d4d8d662310aa7f02b8683470f474d385ed02d31f