Dec 03 19:17:58.014 INFO testing arendur-0.0.5 against 1.30.1 for beta-1.31-5
Dec 03 19:17:58.014 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 19:17:58.256 INFO [stdout] 9853a7c678b89b8985dde3f6531e066b350fbd7c43b2db949d2e25e8f665a28e
Dec 03 19:17:58.258 INFO running `"docker" "start" "-a" "9853a7c678b89b8985dde3f6531e066b350fbd7c43b2db949d2e25e8f665a28e"`
Dec 03 19:17:59.080 INFO [stderr] usermod: no changes
Dec 03 19:17:59.247 INFO [stderr]    Compiling copy_arena v0.1.1
Dec 03 19:17:59.247 INFO [stderr]    Compiling aren_alloc v0.2.1
Dec 03 19:17:59.247 INFO [stderr]    Compiling rayon v0.7.1
Dec 03 19:17:59.247 INFO [stderr]    Compiling cgmath v0.14.1
Dec 03 19:18:00.507 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 19:18:00.507 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/aren_alloc-0.2.1/src/lib.rs:31:1
Dec 03 19:18:00.507 INFO [stderr]    |
Dec 03 19:18:00.507 INFO [stderr] 31 | #![feature(coerce_unsized)]
Dec 03 19:18:00.507 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 19:18:00.507 INFO [stderr] 
Dec 03 19:18:00.507 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 19:18:00.507 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/aren_alloc-0.2.1/src/lib.rs:32:1
Dec 03 19:18:00.507 INFO [stderr]    |
Dec 03 19:18:00.507 INFO [stderr] 32 | #![feature(unsize)]
Dec 03 19:18:00.507 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 03 19:18:00.507 INFO [stderr] 
Dec 03 19:18:00.507 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 19:18:00.507 INFO [stderr] 
Dec 03 19:18:00.507 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 19:18:00.507 INFO [stderr] error: Could not compile `aren_alloc`.
Dec 03 19:18:00.507 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 19:18:09.275 INFO [stderr] error: build failed
Dec 03 19:18:09.275 INFO [stderr] su: No module specific data is present
Dec 03 19:18:09.610 INFO running `"docker" "inspect" "9853a7c678b89b8985dde3f6531e066b350fbd7c43b2db949d2e25e8f665a28e"`
Dec 03 19:18:09.735 INFO running `"docker" "rm" "-f" "9853a7c678b89b8985dde3f6531e066b350fbd7c43b2db949d2e25e8f665a28e"`
Dec 03 19:18:09.877 INFO [stdout] 9853a7c678b89b8985dde3f6531e066b350fbd7c43b2db949d2e25e8f665a28e