Sep 19 14:10:14.576 INFO checking souvik1997/kernel-roulette against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 19 14:10:14.576 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 19 14:10:14.576 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-0/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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 +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 14:10:14.808 INFO blam! fd07f0cc807c75d230d2fc7564db958da443bdfebb973f23439b63eaa3aaf33d
Sep 19 14:10:14.810 INFO running `"docker" "start" "-a" "fd07f0cc807c75d230d2fc7564db958da443bdfebb973f23439b63eaa3aaf33d"`
Sep 19 14:10:17.086 INFO kablam! usermod: no changes
Sep 19 14:10:17.174 INFO kablam!     Checking spin v0.4.7
Sep 19 14:10:17.174 INFO kablam!     Checking rand v0.4.2
Sep 19 14:10:17.585 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 19 14:10:17.585 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Sep 19 14:10:17.585 INFO kablam!   |
Sep 19 14:10:17.585 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 19 14:10:17.585 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 19 14:10:17.585 INFO kablam! 
Sep 19 14:10:17.585 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 19 14:10:17.585 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Sep 19 14:10:17.585 INFO kablam!   |
Sep 19 14:10:17.585 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 19 14:10:17.585 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 19 14:10:17.585 INFO kablam! 
Sep 19 14:10:17.618 INFO kablam! error: aborting due to 2 previous errors
Sep 19 14:10:17.618 INFO kablam! 
Sep 19 14:10:17.618 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 19 14:10:17.638 INFO kablam! error: Could not compile `spin`.
Sep 19 14:10:17.638 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 19 14:10:18.623 INFO kablam! error: build failed
Sep 19 14:10:18.625 INFO kablam! su: No module specific data is present
Sep 19 14:10:20.478 INFO running `"docker" "rm" "-f" "fd07f0cc807c75d230d2fc7564db958da443bdfebb973f23439b63eaa3aaf33d"`
Sep 19 14:10:20.591 INFO blam! fd07f0cc807c75d230d2fc7564db958da443bdfebb973f23439b63eaa3aaf33d