Sep 19 11:56:11.010 INFO checking souvik1997/kernel-roulette against try#fcacde07b66fe513e52c41b73aef91bcc121905b for pr-54346
Sep 19 11:56:11.010 INFO running: cargo +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets
Sep 19 11:56:11.010 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54346/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-2/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/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 +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 11:56:11.462 INFO blam! 15ba62806872533d8c587426868955640d508254a98bca1c2dd5cc13acfe8744
Sep 19 11:56:11.464 INFO running `"docker" "start" "-a" "15ba62806872533d8c587426868955640d508254a98bca1c2dd5cc13acfe8744"`
Sep 19 11:56:14.287 INFO kablam! usermod: no changes
Sep 19 11:56:14.375 INFO kablam!     Checking spin v0.4.7
Sep 19 11:56:14.383 INFO kablam!     Checking rand v0.4.2
Sep 19 11:56:14.841 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 19 11:56:14.841 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Sep 19 11:56:14.841 INFO kablam!   |
Sep 19 11:56:14.841 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 19 11:56:14.841 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 19 11:56:14.841 INFO kablam! 
Sep 19 11:56:14.841 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 19 11:56:14.841 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Sep 19 11:56:14.841 INFO kablam!   |
Sep 19 11:56:14.841 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 19 11:56:14.841 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 19 11:56:14.841 INFO kablam! 
Sep 19 11:56:14.874 INFO kablam! error: aborting due to 2 previous errors
Sep 19 11:56:14.874 INFO kablam! 
Sep 19 11:56:14.874 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 19 11:56:14.900 INFO kablam! error: Could not compile `spin`.
Sep 19 11:56:14.901 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 19 11:56:15.867 INFO kablam! error: build failed
Sep 19 11:56:15.869 INFO kablam! su: No module specific data is present
Sep 19 11:56:17.590 INFO running `"docker" "rm" "-f" "15ba62806872533d8c587426868955640d508254a98bca1c2dd5cc13acfe8744"`
Sep 19 11:56:17.899 INFO blam! 15ba62806872533d8c587426868955640d508254a98bca1c2dd5cc13acfe8744