Aug 01 14:50:37.348 INFO checking souvik1997/kernel-roulette against 1.27.2 for lazy_static-1
Aug 01 14:50:37.348 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 14:50:37.348 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 14:50:37.348 INFO running `"docker" "create" "-v" "/tmp/crater.xZj7YahFATLh:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 01 14:50:37.554 INFO blam! 148fff9a1c4fa5e0c7259d7f14cabf06206847b26f9c808f03d3fe66033b7fce
Aug 01 14:50:37.556 INFO running `"docker" "start" "-a" "148fff9a1c4fa5e0c7259d7f14cabf06206847b26f9c808f03d3fe66033b7fce"`
Aug 01 14:50:38.377 INFO kablam!     Checking spin v0.4.8
Aug 01 14:50:38.377 INFO kablam!     Checking rand v0.4.2
Aug 01 14:50:38.821 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 14:50:38.822 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:6:30
Aug 01 14:50:38.822 INFO kablam!   |
Aug 01 14:50:38.822 INFO kablam! 6 | #![cfg_attr(feature = "asm", feature(asm))]
Aug 01 14:50:38.822 INFO kablam!   |                              ^^^^^^^^^^^^^
Aug 01 14:50:38.822 INFO kablam! 
Aug 01 14:50:38.822 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 14:50:38.822 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:7:42
Aug 01 14:50:38.822 INFO kablam!   |
Aug 01 14:50:38.822 INFO kablam! 7 | #![cfg_attr(feature = "core_intrinsics", feature(core_intrinsics))]
Aug 01 14:50:38.822 INFO kablam!   |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 14:50:38.822 INFO kablam! 
Aug 01 14:50:38.822 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 14:50:38.822 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:35
Aug 01 14:50:38.822 INFO kablam!   |
Aug 01 14:50:38.822 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 01 14:50:38.822 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 14:50:38.836 INFO kablam! 
Aug 01 14:50:38.839 INFO kablam! error: aborting due to 3 previous errors
Aug 01 14:50:38.839 INFO kablam! 
Aug 01 14:50:38.839 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 14:50:38.844 INFO kablam! error: Could not compile `spin`.
Aug 01 14:50:38.844 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 14:50:40.755 INFO kablam! error: build failed
Aug 01 14:50:40.757 INFO kablam! su: No module specific data is present
Aug 01 14:50:41.307 INFO running `"docker" "rm" "-f" "148fff9a1c4fa5e0c7259d7f14cabf06206847b26f9c808f03d3fe66033b7fce"`
Aug 01 14:50:41.454 INFO blam! 148fff9a1c4fa5e0c7259d7f14cabf06206847b26f9c808f03d3fe66033b7fce