Dec 02 18:33:34.244 INFO testing rustc-ap-arena-297.0.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 18:33:34.244 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 02 18:33:34.667 INFO [stdout] e1902ef99ddaef0e4e3f7c8205b50fe7686c9cdba12f94e8034a07cfbb07df6c
Dec 02 18:33:34.673 INFO running `"docker" "start" "-a" "e1902ef99ddaef0e4e3f7c8205b50fe7686c9cdba12f94e8034a07cfbb07df6c"`
Dec 02 18:33:35.438 INFO [stderr] usermod: no changes
Dec 02 18:33:35.554 INFO [stderr]    Compiling rustc-rayon-core v0.1.1
Dec 02 18:33:35.554 INFO [stderr]    Compiling rustc-ap-graphviz v297.0.0
Dec 02 18:33:35.554 INFO [stderr]    Compiling ena v0.9.3
Dec 02 18:33:35.554 INFO [stderr]    Compiling rustc-ap-rustc_cratesio_shim v297.0.0
Dec 02 18:33:35.554 INFO [stderr]    Compiling smallvec v0.6.7
Dec 02 18:33:35.559 INFO [stderr]    Compiling lock_api v0.1.5
Dec 02 18:33:35.571 INFO [stderr]    Compiling parking_lot_core v0.3.1
Dec 02 18:33:36.728 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:36.728 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_cratesio_shim-297.0.0/src/lib.rs:14:1
Dec 02 18:33:36.728 INFO [stderr]    |
Dec 02 18:33:36.728 INFO [stderr] 14 | #![feature(nll)]
Dec 02 18:33:36.728 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 02 18:33:36.728 INFO [stderr] 
Dec 02 18:33:36.728 INFO [stderr] error: aborting due to previous error
Dec 02 18:33:36.728 INFO [stderr] 
Dec 02 18:33:36.728 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:33:36.734 INFO [stderr] error: Could not compile `rustc-ap-rustc_cratesio_shim`.
Dec 02 18:33:36.734 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 18:33:37.211 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:37.211 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.1.5/src/lib.rs:88:34
Dec 02 18:33:37.211 INFO [stderr]    |
Dec 02 18:33:37.211 INFO [stderr] 88 | #![cfg_attr(feature = "nightly", feature(const_fn))]
Dec 02 18:33:37.211 INFO [stderr]    |                                  ^^^^^^^^^^^^^^^^^
Dec 02 18:33:37.211 INFO [stderr] 
Dec 02 18:33:37.215 INFO [stderr] error: aborting due to previous error
Dec 02 18:33:37.215 INFO [stderr] 
Dec 02 18:33:37.215 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:33:37.227 INFO [stderr] error: Could not compile `lock_api`.
Dec 02 18:33:37.227 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 18:33:37.343 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:37.343 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-graphviz-297.0.0/lib.rs:289:1
Dec 02 18:33:37.343 INFO [stderr]     |
Dec 02 18:33:37.343 INFO [stderr] 289 | #![feature(rustc_private, nll)]
Dec 02 18:33:37.343 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 18:33:37.343 INFO [stderr] 
Dec 02 18:33:37.343 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:37.343 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-graphviz-297.0.0/lib.rs:290:1
Dec 02 18:33:37.343 INFO [stderr]     |
Dec 02 18:33:37.343 INFO [stderr] 290 | #![feature(str_escape)]
Dec 02 18:33:37.343 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 18:33:37.343 INFO [stderr] 
Dec 02 18:33:37.343 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 18:33:37.343 INFO [stderr] 
Dec 02 18:33:37.343 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:33:37.371 INFO [stderr] error: Could not compile `rustc-ap-graphviz`.
Dec 02 18:33:37.371 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 18:33:37.407 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:37.407 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/smallvec-0.6.7/lib.rs:33:32
Dec 02 18:33:37.407 INFO [stderr]    |
Dec 02 18:33:37.407 INFO [stderr] 33 | #![cfg_attr(feature = "union", feature(untagged_unions))]
Dec 02 18:33:37.407 INFO [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 18:33:37.407 INFO [stderr] 
Dec 02 18:33:37.407 INFO [stderr] error: aborting due to previous error
Dec 02 18:33:37.407 INFO [stderr] 
Dec 02 18:33:37.407 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:33:37.413 INFO [stderr] error: Could not compile `smallvec`.
Dec 02 18:33:37.413 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 18:33:37.919 INFO [stderr] error: build failed
Dec 02 18:33:37.919 INFO [stderr] su: No module specific data is present
Dec 02 18:33:38.281 INFO running `"docker" "inspect" "e1902ef99ddaef0e4e3f7c8205b50fe7686c9cdba12f94e8034a07cfbb07df6c"`
Dec 02 18:33:38.409 INFO running `"docker" "rm" "-f" "e1902ef99ddaef0e4e3f7c8205b50fe7686c9cdba12f94e8034a07cfbb07df6c"`
Dec 02 18:33:38.566 INFO [stdout] e1902ef99ddaef0e4e3f7c8205b50fe7686c9cdba12f94e8034a07cfbb07df6c