Sep 03 15:46:54.824 INFO checking souvik1997/kernel-roulette against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 03 15:46:54.824 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 03 15:46:54.824 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 03 15:46:55.070 INFO blam! 6a416dab5311a4f08d9bfca984105785a010c1c35181801c7e988b330228af02
Sep 03 15:46:55.072 INFO running `"docker" "start" "-a" "6a416dab5311a4f08d9bfca984105785a010c1c35181801c7e988b330228af02"`
Sep 03 15:46:55.971 INFO kablam!     Checking spin v0.4.7
Sep 03 15:46:55.974 INFO kablam!     Checking rand v0.4.2
Sep 03 15:46:56.320 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 03 15:46:56.320 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Sep 03 15:46:56.320 INFO kablam!   |
Sep 03 15:46:56.320 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 03 15:46:56.320 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 03 15:46:56.321 INFO kablam! 
Sep 03 15:46:56.321 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 03 15:46:56.321 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Sep 03 15:46:56.321 INFO kablam!   |
Sep 03 15:46:56.321 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 03 15:46:56.321 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 03 15:46:56.321 INFO kablam! 
Sep 03 15:46:56.339 INFO kablam! error: aborting due to 2 previous errors
Sep 03 15:46:56.339 INFO kablam! 
Sep 03 15:46:56.339 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 03 15:46:56.347 INFO kablam! error: Could not compile `spin`.
Sep 03 15:46:56.348 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 03 15:46:58.475 INFO kablam! error: build failed
Sep 03 15:46:58.477 INFO kablam! su: No module specific data is present
Sep 03 15:46:59.039 INFO running `"docker" "rm" "-f" "6a416dab5311a4f08d9bfca984105785a010c1c35181801c7e988b330228af02"`
Sep 03 15:46:59.191 INFO blam! 6a416dab5311a4f08d9bfca984105785a010c1c35181801c7e988b330228af02