Aug 29 16:36:02.827 INFO checking souvik1997/kernel-roulette against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 29 16:36:02.827 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 29 16:36:02.827 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-2/master#ede55518431154bc761f7b2438cce9078c162700:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 29 16:36:03.070 INFO blam! 9cb4bd095a22cbc695a160cbb58eee577bfcc2627ad429e1ad7fa704fbd474fb
Aug 29 16:36:03.073 INFO running `"docker" "start" "-a" "9cb4bd095a22cbc695a160cbb58eee577bfcc2627ad429e1ad7fa704fbd474fb"`
Aug 29 16:36:03.905 INFO kablam!     Checking spin v0.4.7
Aug 29 16:36:03.905 INFO kablam!     Checking rand v0.4.2
Aug 29 16:36:04.258 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 29 16:36:04.258 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Aug 29 16:36:04.258 INFO kablam!   |
Aug 29 16:36:04.258 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 29 16:36:04.258 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 29 16:36:04.258 INFO kablam! 
Aug 29 16:36:04.260 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 29 16:36:04.260 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Aug 29 16:36:04.260 INFO kablam!   |
Aug 29 16:36:04.260 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 29 16:36:04.260 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 29 16:36:04.260 INFO kablam! 
Aug 29 16:36:04.278 INFO kablam! error: aborting due to 2 previous errors
Aug 29 16:36:04.278 INFO kablam! 
Aug 29 16:36:04.278 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 29 16:36:04.284 INFO kablam! error: Could not compile `spin`.
Aug 29 16:36:04.285 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 29 16:36:06.293 INFO kablam! error: build failed
Aug 29 16:36:06.295 INFO kablam! su: No module specific data is present
Aug 29 16:36:06.783 INFO running `"docker" "rm" "-f" "9cb4bd095a22cbc695a160cbb58eee577bfcc2627ad429e1ad7fa704fbd474fb"`
Aug 29 16:36:06.940 INFO blam! 9cb4bd095a22cbc695a160cbb58eee577bfcc2627ad429e1ad7fa704fbd474fb