Aug 01 23:25:26.398 INFO checking rustdct-0.2.1 against 1.27.2+tmplazy for lazy_static-1
Aug 01 23:25:26.399 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:25:26.399 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:25:26.399 INFO running `"docker" "create" "-v" "/tmp/crater.M1zOpr0kfww9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+tmplazy:/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 01 23:25:26.636 INFO blam! 3130f84301b643b58d59670790b36e5ade6427839caadd33460b07b767237ad7
Aug 01 23:25:26.637 INFO running `"docker" "start" "-a" "3130f84301b643b58d59670790b36e5ade6427839caadd33460b07b767237ad7"`
Aug 01 23:25:27.821 INFO kablam!     Checking rustfft v2.1.0
Aug 01 23:25:29.843 INFO kablam!     Checking rustdct v0.2.1 (file:///source)
Aug 01 23:25:34.172 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:25:34.172 INFO kablam!  --> benches/bench_dct_planned.rs:1:1
Aug 01 23:25:34.172 INFO kablam!   |
Aug 01 23:25:34.172 INFO kablam! 1 | #![feature(test)]
Aug 01 23:25:34.172 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 23:25:34.172 INFO kablam! 
Aug 01 23:25:34.172 INFO kablam! error: aborting due to previous error
Aug 01 23:25:34.173 INFO kablam! 
Aug 01 23:25:34.173 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:25:34.181 INFO kablam! error: Could not compile `rustdct`.
Aug 01 23:25:34.184 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:25:34.278 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:25:34.278 INFO kablam!  --> benches/bench_dct_naive.rs:1:1
Aug 01 23:25:34.278 INFO kablam!   |
Aug 01 23:25:34.278 INFO kablam! 1 | #![feature(test)]
Aug 01 23:25:34.278 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 23:25:34.278 INFO kablam! 
Aug 01 23:25:34.280 INFO kablam! error: aborting due to previous error
Aug 01 23:25:34.280 INFO kablam! 
Aug 01 23:25:34.281 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:25:34.301 INFO kablam! error: Could not compile `rustdct`.
Aug 01 23:25:34.301 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:25:34.696 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:25:34.696 INFO kablam!  --> benches/bench_dct_via_fft.rs:1:1
Aug 01 23:25:34.696 INFO kablam!   |
Aug 01 23:25:34.696 INFO kablam! 1 | #![feature(test)]
Aug 01 23:25:34.696 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 23:25:34.696 INFO kablam! 
Aug 01 23:25:34.697 INFO kablam! error: aborting due to previous error
Aug 01 23:25:34.697 INFO kablam! 
Aug 01 23:25:34.697 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:25:34.721 INFO kablam! error: Could not compile `rustdct`.
Aug 01 23:25:34.721 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:25:35.621 INFO kablam! error: build failed
Aug 01 23:25:35.623 INFO kablam! su: No module specific data is present
Aug 01 23:25:36.413 INFO running `"docker" "rm" "-f" "3130f84301b643b58d59670790b36e5ade6427839caadd33460b07b767237ad7"`
Aug 01 23:25:36.586 INFO blam! 3130f84301b643b58d59670790b36e5ade6427839caadd33460b07b767237ad7