Aug 31 20:02:17.531 INFO checking souvik1997/kernel-roulette against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Aug 31 20:02:17.531 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Aug 31 20:02:17.531 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 20:02:17.751 INFO blam! 7088549ab03995125ef531e4682bb0a6bf8cccee5bbc465b8b8258678cb171d6
Aug 31 20:02:17.753 INFO running `"docker" "start" "-a" "7088549ab03995125ef531e4682bb0a6bf8cccee5bbc465b8b8258678cb171d6"`
Aug 31 20:02:18.681 INFO kablam!     Checking spin v0.4.7
Aug 31 20:02:18.681 INFO kablam!     Checking rand v0.4.2
Aug 31 20:02:19.063 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 31 20:02:19.063 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Aug 31 20:02:19.063 INFO kablam!   |
Aug 31 20:02:19.063 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 31 20:02:19.063 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 31 20:02:19.063 INFO kablam! 
Aug 31 20:02:19.063 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 31 20:02:19.063 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Aug 31 20:02:19.063 INFO kablam!   |
Aug 31 20:02:19.063 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 31 20:02:19.063 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 31 20:02:19.063 INFO kablam! 
Aug 31 20:02:19.090 INFO kablam! error: aborting due to 2 previous errors
Aug 31 20:02:19.090 INFO kablam! 
Aug 31 20:02:19.090 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 31 20:02:19.096 INFO kablam! error: Could not compile `spin`.
Aug 31 20:02:19.096 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 31 20:02:20.977 INFO kablam! error: build failed
Aug 31 20:02:20.979 INFO kablam! su: No module specific data is present
Aug 31 20:02:21.535 INFO running `"docker" "rm" "-f" "7088549ab03995125ef531e4682bb0a6bf8cccee5bbc465b8b8258678cb171d6"`
Aug 31 20:02:21.693 INFO blam! 7088549ab03995125ef531e4682bb0a6bf8cccee5bbc465b8b8258678cb171d6