Dec 03 19:46:21.187 INFO testing alloc-cortex-m-0.3.5 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 19:46:21.187 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 19:46:21.335 INFO [stdout] 68735d6b38416d26525bbe84feb7870faf642fb78ee86f73ef54d182efb1a2cd
Dec 03 19:46:21.341 INFO running `"docker" "start" "-a" "68735d6b38416d26525bbe84feb7870faf642fb78ee86f73ef54d182efb1a2cd"`
Dec 03 19:46:22.160 INFO [stderr] usermod: no changes
Dec 03 19:46:22.192 INFO [stderr]    Compiling volatile-register v0.1.2
Dec 03 19:46:22.192 INFO [stderr]    Compiling linked_list_allocator v0.6.3
Dec 03 19:46:22.267 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 19:46:22.267 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.3/src/lib.rs:1:1
Dec 03 19:46:22.267 INFO [stderr]   |
Dec 03 19:46:22.267 INFO [stderr] 1 | #![feature(const_fn)]
Dec 03 19:46:22.267 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 03 19:46:22.267 INFO [stderr] 
Dec 03 19:46:22.267 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 19:46:22.267 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.3/src/lib.rs:2:1
Dec 03 19:46:22.267 INFO [stderr]   |
Dec 03 19:46:22.267 INFO [stderr] 2 | #![feature(alloc, allocator_api)]
Dec 03 19:46:22.267 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 19:46:22.267 INFO [stderr] 
Dec 03 19:46:22.267 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 19:46:22.267 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.3/src/lib.rs:3:1
Dec 03 19:46:22.267 INFO [stderr]   |
Dec 03 19:46:22.267 INFO [stderr] 3 | #![feature(pointer_methods)]
Dec 03 19:46:22.267 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 19:46:22.267 INFO [stderr] 
Dec 03 19:46:22.267 INFO [stderr] error: aborting due to 3 previous errors
Dec 03 19:46:22.267 INFO [stderr] 
Dec 03 19:46:22.267 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 19:46:22.267 INFO [stderr] error: Could not compile `linked_list_allocator`.
Dec 03 19:46:22.267 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 19:46:22.299 INFO [stderr] error: build failed
Dec 03 19:46:22.299 INFO [stderr] su: No module specific data is present
Dec 03 19:46:22.556 INFO running `"docker" "inspect" "68735d6b38416d26525bbe84feb7870faf642fb78ee86f73ef54d182efb1a2cd"`
Dec 03 19:46:22.653 INFO running `"docker" "rm" "-f" "68735d6b38416d26525bbe84feb7870faf642fb78ee86f73ef54d182efb1a2cd"`
Dec 03 19:46:22.775 INFO [stdout] 68735d6b38416d26525bbe84feb7870faf642fb78ee86f73ef54d182efb1a2cd