Sep 03 19:53:10.471 INFO checking souvik1997/kernel-roulette against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 03 19:53:10.471 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 03 19:53:10.472 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-0/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 03 19:53:10.698 INFO blam! f51ac099547830056f310a8360c5756b2206daf9f03e78fd2022c1aa1076564e
Sep 03 19:53:10.701 INFO running `"docker" "start" "-a" "f51ac099547830056f310a8360c5756b2206daf9f03e78fd2022c1aa1076564e"`
Sep 03 19:53:11.531 INFO kablam!     Checking spin v0.4.7
Sep 03 19:53:11.531 INFO kablam!     Checking rand v0.4.2
Sep 03 19:53:11.854 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 03 19:53:11.854 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Sep 03 19:53:11.854 INFO kablam!   |
Sep 03 19:53:11.854 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 03 19:53:11.854 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 03 19:53:11.854 INFO kablam! 
Sep 03 19:53:11.854 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 03 19:53:11.854 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Sep 03 19:53:11.854 INFO kablam!   |
Sep 03 19:53:11.854 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 03 19:53:11.854 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 03 19:53:11.854 INFO kablam! 
Sep 03 19:53:11.873 INFO kablam! error: aborting due to 2 previous errors
Sep 03 19:53:11.873 INFO kablam! 
Sep 03 19:53:11.873 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 03 19:53:11.879 INFO kablam! error: Could not compile `spin`.
Sep 03 19:53:11.879 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 03 19:53:13.932 INFO kablam! error: build failed
Sep 03 19:53:13.933 INFO kablam! su: No module specific data is present
Sep 03 19:53:14.482 INFO running `"docker" "rm" "-f" "f51ac099547830056f310a8360c5756b2206daf9f03e78fd2022c1aa1076564e"`
Sep 03 19:53:14.646 INFO blam! f51ac099547830056f310a8360c5756b2206daf9f03e78fd2022c1aa1076564e