Aug 02 14:21:20.461 INFO checking basic_dsp-0.5.2 against 1.27.2 for lazy_static-1
Aug 02 14:21:20.461 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:21:20.461 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:21:20.461 INFO running `"docker" "create" "-v" "/tmp/crater.rBVmzhZnuySN:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 14:21:20.702 INFO blam! cdc2a681dd05c517f420dd87026b530f97d06904fde206020bbc957416c46be4
Aug 02 14:21:20.704 INFO running `"docker" "start" "-a" "cdc2a681dd05c517f420dd87026b530f97d06904fde206020bbc957416c46be4"`
Aug 02 14:21:22.014 INFO kablam!     Checking rustfft v2.1.0
Aug 02 14:21:24.142 INFO kablam!     Checking basic_dsp_vector v0.5.2
Aug 02 14:21:37.141 INFO kablam!     Checking basic_dsp_matrix v0.5.2
Aug 02 14:21:44.368 INFO kablam!     Checking basic_dsp v0.5.2 (file:///source)
Aug 02 14:21:49.442 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:21:49.442 INFO kablam!  --> benches/multi_ops_bench.rs:1:1
Aug 02 14:21:49.442 INFO kablam!   |
Aug 02 14:21:49.442 INFO kablam! 1 | #![feature(test)]
Aug 02 14:21:49.442 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:21:49.442 INFO kablam! 
Aug 02 14:21:49.442 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:21:49.442 INFO kablam!  --> benches/multi_ops_bench.rs:2:1
Aug 02 14:21:49.442 INFO kablam!   |
Aug 02 14:21:49.442 INFO kablam! 2 | #![feature(box_syntax)]
Aug 02 14:21:49.442 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:21:49.442 INFO kablam! 
Aug 02 14:21:49.443 INFO kablam! error: aborting due to 2 previous errors
Aug 02 14:21:49.443 INFO kablam! 
Aug 02 14:21:49.443 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:21:49.484 INFO kablam! error: Could not compile `basic_dsp`.
Aug 02 14:21:49.484 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:21:52.466 INFO kablam! error: build failed
Aug 02 14:21:52.467 INFO kablam! su: No module specific data is present
Aug 02 14:21:53.837 INFO running `"docker" "rm" "-f" "cdc2a681dd05c517f420dd87026b530f97d06904fde206020bbc957416c46be4"`
Aug 02 14:21:53.931 INFO blam! cdc2a681dd05c517f420dd87026b530f97d06904fde206020bbc957416c46be4