Dec 03 19:18:07.028 INFO testing aren_alloc-0.3.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 19:18:07.028 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 03 19:18:07.238 INFO [stdout] 6c7c0a5a98ccb643251e9a6173a8cc3403bf2a5dce8add5ad70d058636182401
Dec 03 19:18:07.240 INFO running `"docker" "start" "-a" "6c7c0a5a98ccb643251e9a6173a8cc3403bf2a5dce8add5ad70d058636182401"`
Dec 03 19:18:07.803 INFO [stderr] usermod: no changes
Dec 03 19:18:07.836 INFO [stderr]    Compiling aren_alloc v0.3.0 (/source)
Dec 03 19:18:08.400 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 19:18:08.400 INFO [stderr]   --> src/lib.rs:31:1
Dec 03 19:18:08.400 INFO [stderr]    |
Dec 03 19:18:08.401 INFO [stderr] 31 | #![feature(coerce_unsized)]
Dec 03 19:18:08.401 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 19:18:08.401 INFO [stderr] 
Dec 03 19:18:08.402 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 19:18:08.402 INFO [stderr]   --> src/lib.rs:32:1
Dec 03 19:18:08.402 INFO [stderr]    |
Dec 03 19:18:08.403 INFO [stderr] 32 | #![feature(unsize)]
Dec 03 19:18:08.403 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 03 19:18:08.403 INFO [stderr] 
Dec 03 19:18:08.404 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 19:18:08.404 INFO [stderr] 
Dec 03 19:18:08.405 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 19:18:08.411 INFO [stderr] error: Could not compile `aren_alloc`.
Dec 03 19:18:08.411 INFO [stderr] 
Dec 03 19:18:08.411 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 19:18:08.413 INFO [stderr] su: No module specific data is present
Dec 03 19:18:08.755 INFO running `"docker" "inspect" "6c7c0a5a98ccb643251e9a6173a8cc3403bf2a5dce8add5ad70d058636182401"`
Dec 03 19:18:08.860 INFO running `"docker" "rm" "-f" "6c7c0a5a98ccb643251e9a6173a8cc3403bf2a5dce8add5ad70d058636182401"`
Dec 03 19:18:08.990 INFO [stdout] 6c7c0a5a98ccb643251e9a6173a8cc3403bf2a5dce8add5ad70d058636182401