Aug 02 09:37:11.041 INFO checking futures-0.1.23 against 1.27.2 for lazy_static-1
Aug 02 09:37:11.041 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:37:11.042 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:37:11.042 INFO running `"docker" "create" "-v" "/tmp/crater.YHqTnqgYqEpV:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 09:37:11.323 INFO blam! f28f98a7bcb8fd7522857ab97e3b67600688a7a5ad560bbd1ce206284f2e8e27
Aug 02 09:37:11.325 INFO running `"docker" "start" "-a" "f28f98a7bcb8fd7522857ab97e3b67600688a7a5ad560bbd1ce206284f2e8e27"`
Aug 02 09:37:12.709 INFO kablam!     Checking futures v0.1.23 (file:///source)
Aug 02 09:37:25.380 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 09:37:25.380 INFO kablam!  --> benches/sync_mpsc.rs:1:1
Aug 02 09:37:25.380 INFO kablam!   |
Aug 02 09:37:25.380 INFO kablam! 1 | #![feature(test)]
Aug 02 09:37:25.380 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 09:37:25.380 INFO kablam! 
Aug 02 09:37:25.382 INFO kablam! error: aborting due to previous error
Aug 02 09:37:25.382 INFO kablam! 
Aug 02 09:37:25.382 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 09:37:25.450 INFO kablam! error: Could not compile `futures`.
Aug 02 09:37:25.451 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 09:37:25.560 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 09:37:25.560 INFO kablam!  --> benches/bilock.rs:1:1
Aug 02 09:37:25.560 INFO kablam!   |
Aug 02 09:37:25.560 INFO kablam! 1 | #![feature(test)]
Aug 02 09:37:25.560 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 09:37:25.560 INFO kablam! 
Aug 02 09:37:25.560 INFO kablam! error: aborting due to previous error
Aug 02 09:37:25.561 INFO kablam! 
Aug 02 09:37:25.561 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 09:37:25.572 INFO kablam! error: Could not compile `futures`.
Aug 02 09:37:25.573 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 09:37:26.632 INFO kablam! error: build failed
Aug 02 09:37:26.634 INFO kablam! su: No module specific data is present
Aug 02 09:37:27.262 INFO running `"docker" "rm" "-f" "f28f98a7bcb8fd7522857ab97e3b67600688a7a5ad560bbd1ce206284f2e8e27"`
Aug 02 09:37:27.439 INFO blam! f28f98a7bcb8fd7522857ab97e3b67600688a7a5ad560bbd1ce206284f2e8e27