Dec 02 17:18:22.199 INFO testing serde_traitobject-0.1.2 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 17:18:22.199 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 02 17:18:22.656 INFO [stdout] fc509e6ee155f44139ea71c71f8b25e89ab6bba16c1e3b9dba062d3e1102eb9d
Dec 02 17:18:22.658 INFO running `"docker" "start" "-a" "fc509e6ee155f44139ea71c71f8b25e89ab6bba16c1e3b9dba062d3e1102eb9d"`
Dec 02 17:18:24.036 INFO [stderr] usermod: no changes
Dec 02 17:18:24.199 INFO [stderr]    Compiling metatype v0.1.1
Dec 02 17:18:24.199 INFO [stderr]    Compiling uuid v0.7.1
Dec 02 17:18:24.207 INFO [stderr]    Compiling proc_self v0.1.0
Dec 02 17:18:24.207 INFO [stderr]    Compiling twox-hash v1.1.1
Dec 02 17:18:25.772 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 17:18:25.772 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/uuid-0.7.1/src/lib.rs:110:35
Dec 02 17:18:25.772 INFO [stderr]     |
Dec 02 17:18:25.772 INFO [stderr] 110 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
Dec 02 17:18:25.772 INFO [stderr]     |                                   ^^^^^^^^^^^^^^^^^
Dec 02 17:18:25.772 INFO [stderr] 
Dec 02 17:18:25.783 INFO [stderr] error: aborting due to previous error
Dec 02 17:18:25.787 INFO [stderr] 
Dec 02 17:18:25.787 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 17:18:25.815 INFO [stderr] error: Could not compile `uuid`.
Dec 02 17:18:25.815 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 17:18:25.939 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 17:18:25.939 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/metatype-0.1.1/src/lib.rs:33:1
Dec 02 17:18:25.939 INFO [stderr]    |
Dec 02 17:18:25.939 INFO [stderr] 33 | #![feature(raw, box_syntax, specialization)]
Dec 02 17:18:25.939 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:18:25.939 INFO [stderr] 
Dec 02 17:18:25.939 INFO [stderr] error: aborting due to previous error
Dec 02 17:18:25.939 INFO [stderr] 
Dec 02 17:18:25.939 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 17:18:25.943 INFO [stderr] error: Could not compile `metatype`.
Dec 02 17:18:25.943 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 17:18:26.619 INFO [stderr] error: build failed
Dec 02 17:18:26.623 INFO [stderr] su: No module specific data is present
Dec 02 17:18:27.351 INFO running `"docker" "inspect" "fc509e6ee155f44139ea71c71f8b25e89ab6bba16c1e3b9dba062d3e1102eb9d"`
Dec 02 17:18:27.651 INFO running `"docker" "rm" "-f" "fc509e6ee155f44139ea71c71f8b25e89ab6bba16c1e3b9dba062d3e1102eb9d"`
Dec 02 17:18:27.939 INFO [stdout] fc509e6ee155f44139ea71c71f8b25e89ab6bba16c1e3b9dba062d3e1102eb9d