Dec 01 14:01:49.046 INFO testing jfredett/synacor against 1.30.1 for beta-1.31-5
Dec 01 14:01:49.046 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 14:01:49.459 INFO [stdout] 51088b71675521099e4313562d5422a60452e06dabe587726fee5cf91e8e63b8
Dec 01 14:01:49.461 INFO running `"docker" "start" "-a" "51088b71675521099e4313562d5422a60452e06dabe587726fee5cf91e8e63b8"`
Dec 01 14:01:50.943 INFO [stderr] usermod: no changes
Dec 01 14:01:51.055 INFO [stderr]    Compiling synacor v0.1.0 (/source)
Dec 01 14:01:51.469 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 14:01:51.469 INFO [stderr]  --> src/lib.rs:1:1
Dec 01 14:01:51.469 INFO [stderr]   |
Dec 01 14:01:51.469 INFO [stderr] 1 | #![feature(try_from, const_fn)]
Dec 01 14:01:51.469 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 14:01:51.469 INFO [stderr] 
Dec 01 14:01:51.472 INFO [stderr] error: aborting due to previous error
Dec 01 14:01:51.472 INFO [stderr] 
Dec 01 14:01:51.472 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 14:01:51.480 INFO [stderr] error: Could not compile `synacor`.
Dec 01 14:01:51.480 INFO [stderr] 
Dec 01 14:01:51.480 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 14:01:51.481 INFO [stderr] su: No module specific data is present
Dec 01 14:01:51.870 INFO running `"docker" "inspect" "51088b71675521099e4313562d5422a60452e06dabe587726fee5cf91e8e63b8"`
Dec 01 14:01:51.947 INFO running `"docker" "rm" "-f" "51088b71675521099e4313562d5422a60452e06dabe587726fee5cf91e8e63b8"`
Dec 01 14:01:52.040 INFO [stdout] 51088b71675521099e4313562d5422a60452e06dabe587726fee5cf91e8e63b8
