Aug 16 23:06:02.099 INFO checking souvik1997/kernel-roulette against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 16 23:06:02.099 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 16 23:06:02.099 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 16 23:06:02.099 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-7/master#142bb27373126edf8367f526358b6c72ecf1d8df:/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 +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 16 23:06:02.354 INFO blam! bcdf918bb21e57bed1f949f66c2fb31efe3fbc24f79529aad1cd0810ca092504
Aug 16 23:06:02.357 INFO running `"docker" "start" "-a" "bcdf918bb21e57bed1f949f66c2fb31efe3fbc24f79529aad1cd0810ca092504"`
Aug 16 23:06:03.275 INFO kablam!     Checking spin v0.4.7
Aug 16 23:06:03.275 INFO kablam!     Checking rand v0.4.2
Aug 16 23:06:04.118 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 16 23:06:04.119 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Aug 16 23:06:04.119 INFO kablam!   |
Aug 16 23:06:04.119 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 16 23:06:04.119 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 16 23:06:04.119 INFO kablam! 
Aug 16 23:06:04.119 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 16 23:06:04.119 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Aug 16 23:06:04.119 INFO kablam!   |
Aug 16 23:06:04.120 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 16 23:06:04.120 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 16 23:06:04.120 INFO kablam! 
Aug 16 23:06:04.156 INFO kablam! error: aborting due to 2 previous errors
Aug 16 23:06:04.166 INFO kablam! 
Aug 16 23:06:04.167 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 16 23:06:04.174 INFO kablam! error: Could not compile `spin`.
Aug 16 23:06:04.175 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 16 23:06:06.491 INFO kablam! error: build failed
Aug 16 23:06:06.496 INFO kablam! su: No module specific data is present
Aug 16 23:06:07.015 INFO running `"docker" "rm" "-f" "bcdf918bb21e57bed1f949f66c2fb31efe3fbc24f79529aad1cd0810ca092504"`
Aug 16 23:06:07.171 INFO blam! bcdf918bb21e57bed1f949f66c2fb31efe3fbc24f79529aad1cd0810ca092504