Dec 02 18:33:28.326 INFO testing rustc-ap-rustc_data_structures-297.0.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 18:33:28.326 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 18:33:28.824 INFO [stdout] befe3c6bbdba6650795db88834c81dc684dc232855a8306219ed4ca9c8a77de4
Dec 02 18:33:28.832 INFO running `"docker" "start" "-a" "befe3c6bbdba6650795db88834c81dc684dc232855a8306219ed4ca9c8a77de4"`
Dec 02 18:33:29.634 INFO [stderr] usermod: no changes
Dec 02 18:33:29.715 INFO [stderr]    Compiling rustc-ap-graphviz v297.0.0
Dec 02 18:33:29.715 INFO [stderr]    Compiling rustc-rayon-core v0.1.1
Dec 02 18:33:29.715 INFO [stderr]    Compiling rustc-ap-rustc_cratesio_shim v297.0.0
Dec 02 18:33:29.715 INFO [stderr]    Compiling smallvec v0.6.7
Dec 02 18:33:29.715 INFO [stderr]    Compiling lock_api v0.1.5
Dec 02 18:33:29.718 INFO [stderr]    Compiling parking_lot_core v0.3.1
Dec 02 18:33:30.388 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:30.388 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.1.5/src/lib.rs:88:34
Dec 02 18:33:30.388 INFO [stderr]    |
Dec 02 18:33:30.388 INFO [stderr] 88 | #![cfg_attr(feature = "nightly", feature(const_fn))]
Dec 02 18:33:30.388 INFO [stderr]    |                                  ^^^^^^^^^^^^^^^^^
Dec 02 18:33:30.388 INFO [stderr] 
Dec 02 18:33:30.399 INFO [stderr] error: aborting due to previous error
Dec 02 18:33:30.399 INFO [stderr] 
Dec 02 18:33:30.399 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:33:30.409 INFO [stderr] error: Could not compile `lock_api`.
Dec 02 18:33:30.409 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 18:33:31.263 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:31.263 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-graphviz-297.0.0/lib.rs:289:1
Dec 02 18:33:31.263 INFO [stderr]     |
Dec 02 18:33:31.263 INFO [stderr] 289 | #![feature(rustc_private, nll)]
Dec 02 18:33:31.263 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 18:33:31.263 INFO [stderr] 
Dec 02 18:33:31.263 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:31.263 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-graphviz-297.0.0/lib.rs:290:1
Dec 02 18:33:31.263 INFO [stderr]     |
Dec 02 18:33:31.263 INFO [stderr] 290 | #![feature(str_escape)]
Dec 02 18:33:31.263 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 18:33:31.263 INFO [stderr] 
Dec 02 18:33:31.279 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 18:33:31.279 INFO [stderr] 
Dec 02 18:33:31.279 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:33:31.291 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:31.291 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_cratesio_shim-297.0.0/src/lib.rs:14:1
Dec 02 18:33:31.291 INFO [stderr]    |
Dec 02 18:33:31.291 INFO [stderr] 14 | #![feature(nll)]
Dec 02 18:33:31.291 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 02 18:33:31.291 INFO [stderr] 
Dec 02 18:33:31.291 INFO [stderr] error: aborting due to previous error
Dec 02 18:33:31.291 INFO [stderr] 
Dec 02 18:33:31.291 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:33:31.299 INFO [stderr] error: Could not compile `rustc-ap-graphviz`.
Dec 02 18:33:31.299 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 18:33:31.299 INFO [stderr] error: Could not compile `rustc-ap-rustc_cratesio_shim`.
Dec 02 18:33:31.299 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 18:33:31.299 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:31.299 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/smallvec-0.6.7/lib.rs:33:32
Dec 02 18:33:31.299 INFO [stderr]    |
Dec 02 18:33:31.299 INFO [stderr] 33 | #![cfg_attr(feature = "union", feature(untagged_unions))]
Dec 02 18:33:31.299 INFO [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 18:33:31.299 INFO [stderr] 
Dec 02 18:33:31.303 INFO [stderr] error: aborting due to previous error
Dec 02 18:33:31.303 INFO [stderr] 
Dec 02 18:33:31.303 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:33:31.306 INFO [stderr] error: Could not compile `smallvec`.
Dec 02 18:33:31.306 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 18:33:33.161 INFO [stderr] error: build failed
Dec 02 18:33:33.161 INFO [stderr] su: No module specific data is present
Dec 02 18:33:33.719 INFO running `"docker" "inspect" "befe3c6bbdba6650795db88834c81dc684dc232855a8306219ed4ca9c8a77de4"`
Dec 02 18:33:34.032 INFO running `"docker" "rm" "-f" "befe3c6bbdba6650795db88834c81dc684dc232855a8306219ed4ca9c8a77de4"`
Dec 02 18:33:34.306 INFO [stdout] befe3c6bbdba6650795db88834c81dc684dc232855a8306219ed4ca9c8a77de4