Aug 02 07:25:08.675 INFO checking hash-table-0.2.2 against 1.27.2 for lazy_static-1
Aug 02 07:25:08.676 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:25:08.676 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:25:08.676 INFO running `"docker" "create" "-v" "/tmp/crater.zQRgjtByKF0F:/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 07:25:08.887 INFO blam! 1f52da8cf15ed201368eeaee28ce580c498a60b3cbcaeb0db7df1648622a6764
Aug 02 07:25:08.890 INFO running `"docker" "start" "-a" "1f52da8cf15ed201368eeaee28ce580c498a60b3cbcaeb0db7df1648622a6764"`
Aug 02 07:25:10.544 INFO kablam!    Compiling hash-table v0.2.2 (file:///source)
Aug 02 07:25:10.550 INFO kablam!     Checking slot v0.2.4
Aug 02 07:25:10.553 INFO kablam!    Compiling env_logger v0.5.11
Aug 02 07:25:10.852 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:25:10.852 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/slot-0.2.4/src/lib.rs:3:1
Aug 02 07:25:10.852 INFO kablam!   |
Aug 02 07:25:10.852 INFO kablam! 3 | #![feature(const_fn)]
Aug 02 07:25:10.852 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 02 07:25:10.852 INFO kablam! 
Aug 02 07:25:10.852 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:25:10.852 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/slot-0.2.4/src/lib.rs:4:1
Aug 02 07:25:10.852 INFO kablam!   |
Aug 02 07:25:10.852 INFO kablam! 4 | #![feature(untagged_unions)]
Aug 02 07:25:10.852 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 07:25:10.852 INFO kablam! 
Aug 02 07:25:10.852 INFO kablam! error: aborting due to 2 previous errors
Aug 02 07:25:10.852 INFO kablam! 
Aug 02 07:25:10.852 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:25:10.878 INFO kablam! error: Could not compile `slot`.
Aug 02 07:25:10.878 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 07:25:14.070 INFO kablam! error: build failed
Aug 02 07:25:14.071 INFO kablam! su: No module specific data is present
Aug 02 07:25:15.442 INFO running `"docker" "rm" "-f" "1f52da8cf15ed201368eeaee28ce580c498a60b3cbcaeb0db7df1648622a6764"`
Aug 02 07:25:15.577 INFO blam! 1f52da8cf15ed201368eeaee28ce580c498a60b3cbcaeb0db7df1648622a6764