Dec 01 16:27:47.444 INFO testing google/rerast against 1.30.1 for beta-1.31-5
Dec 01 16:27:47.444 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 01 16:27:47.837 INFO [stdout] 37b8dcee058546da11f9b4307aebc1b43448c46b6c14f28642b228e6a59f04fe
Dec 01 16:27:47.843 INFO running `"docker" "start" "-a" "37b8dcee058546da11f9b4307aebc1b43448c46b6c14f28642b228e6a59f04fe"`
Dec 01 16:27:48.627 INFO [stderr] usermod: no changes
Dec 01 16:27:48.814 INFO [stderr]    Compiling diff v0.1.11
Dec 01 16:27:48.815 INFO [stderr]    Compiling rerast_macros v0.1.12 (/source/rerast_macros)
Dec 01 16:27:48.815 INFO [stderr]    Compiling backtrace-sys v0.1.24
Dec 01 16:27:48.822 INFO [stderr]    Compiling syn v0.14.9
Dec 01 16:27:49.947 INFO [stderr]    Compiling backtrace v0.3.9
Dec 01 16:28:02.233 INFO [stderr]    Compiling synstructure v0.9.0
Dec 01 16:28:06.446 INFO [stderr]    Compiling failure_derive v0.1.2
Dec 01 16:28:09.792 INFO [stderr]    Compiling failure v0.1.2
Dec 01 16:28:10.538 INFO [stderr]    Compiling rerast v0.1.30 (/source)
Dec 01 16:28:14.342 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 16:28:14.342 INFO [stderr]   --> src/lib.rs:69:1
Dec 01 16:28:14.342 INFO [stderr]    |
Dec 01 16:28:14.342 INFO [stderr] 69 | #![feature(rustc_private)]
Dec 01 16:28:14.342 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 16:28:14.342 INFO [stderr] 
Dec 01 16:28:14.342 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 16:28:14.342 INFO [stderr]   --> src/lib.rs:70:1
Dec 01 16:28:14.342 INFO [stderr]    |
Dec 01 16:28:14.342 INFO [stderr] 70 | #![feature(box_syntax)]
Dec 01 16:28:14.342 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 16:28:14.342 INFO [stderr] 
Dec 01 16:28:14.347 INFO [stderr] error: aborting due to 2 previous errors
Dec 01 16:28:14.347 INFO [stderr] 
Dec 01 16:28:14.347 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 16:28:14.370 INFO [stderr] error: Could not compile `rerast`.
Dec 01 16:28:14.370 INFO [stderr] 
Dec 01 16:28:14.370 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 16:28:14.372 INFO [stderr] su: No module specific data is present
Dec 01 16:28:14.808 INFO running `"docker" "inspect" "37b8dcee058546da11f9b4307aebc1b43448c46b6c14f28642b228e6a59f04fe"`
Dec 01 16:28:14.968 INFO running `"docker" "rm" "-f" "37b8dcee058546da11f9b4307aebc1b43448c46b6c14f28642b228e6a59f04fe"`
Dec 01 16:28:15.107 INFO [stdout] 37b8dcee058546da11f9b4307aebc1b43448c46b6c14f28642b228e6a59f04fe
