Sep 05 17:12:04.750 INFO checking souvik1997/kernel-roulette against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 05 17:12:04.750 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 05 17:12:04.750 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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=1000" "-e" "CMD=cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 17:12:05.165 INFO blam! 50c0122f17f7412149bf61a386f6be733805484ed3a8a8d4203b8c77872f45d8
Sep 05 17:12:05.167 INFO running `"docker" "start" "-a" "50c0122f17f7412149bf61a386f6be733805484ed3a8a8d4203b8c77872f45d8"`
Sep 05 17:12:07.533 INFO kablam! usermod: no changes
Sep 05 17:12:07.582 INFO kablam!     Checking spin v0.4.7
Sep 05 17:12:07.582 INFO kablam!     Checking rand v0.4.2
Sep 05 17:12:08.140 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 05 17:12:08.140 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Sep 05 17:12:08.140 INFO kablam!   |
Sep 05 17:12:08.140 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 05 17:12:08.140 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 05 17:12:08.140 INFO kablam! 
Sep 05 17:12:08.140 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 05 17:12:08.140 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Sep 05 17:12:08.140 INFO kablam!   |
Sep 05 17:12:08.140 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 05 17:12:08.140 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 05 17:12:08.140 INFO kablam! 
Sep 05 17:12:08.172 INFO kablam! error: aborting due to 2 previous errors
Sep 05 17:12:08.172 INFO kablam! 
Sep 05 17:12:08.172 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 17:12:08.182 INFO kablam! error: Could not compile `spin`.
Sep 05 17:12:08.183 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 05 17:12:09.102 INFO kablam! error: build failed
Sep 05 17:12:09.104 INFO kablam! su: No module specific data is present
Sep 05 17:12:10.723 INFO running `"docker" "rm" "-f" "50c0122f17f7412149bf61a386f6be733805484ed3a8a8d4203b8c77872f45d8"`
Sep 05 17:12:10.990 INFO blam! 50c0122f17f7412149bf61a386f6be733805484ed3a8a8d4203b8c77872f45d8