Sep 19 11:56:17.943 INFO checking souvik1997/kernel-roulette against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 11:56:17.943 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 11:56:17.943 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-2/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 11:56:18.532 INFO blam! 695963bfb53d9e052cbdd0cd5c3c44b9257cd8ad8807cc50ddeac42343729e25
Sep 19 11:56:18.535 INFO running `"docker" "start" "-a" "695963bfb53d9e052cbdd0cd5c3c44b9257cd8ad8807cc50ddeac42343729e25"`
Sep 19 11:56:21.006 INFO kablam! usermod: no changes
Sep 19 11:56:21.119 INFO kablam!     Checking spin v0.4.7
Sep 19 11:56:21.123 INFO kablam!     Checking rand v0.4.2
Sep 19 11:56:21.635 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 19 11:56:21.636 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Sep 19 11:56:21.636 INFO kablam!   |
Sep 19 11:56:21.636 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 19 11:56:21.637 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 19 11:56:21.637 INFO kablam! 
Sep 19 11:56:21.637 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 19 11:56:21.638 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Sep 19 11:56:21.638 INFO kablam!   |
Sep 19 11:56:21.638 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 19 11:56:21.639 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 19 11:56:21.639 INFO kablam! 
Sep 19 11:56:21.647 INFO kablam! error: aborting due to 2 previous errors
Sep 19 11:56:21.647 INFO kablam! 
Sep 19 11:56:21.647 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 19 11:56:21.659 INFO kablam! error: Could not compile `spin`.
Sep 19 11:56:21.660 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 19 11:56:22.564 INFO kablam! error: build failed
Sep 19 11:56:22.566 INFO kablam! su: No module specific data is present
Sep 19 11:56:24.207 INFO running `"docker" "rm" "-f" "695963bfb53d9e052cbdd0cd5c3c44b9257cd8ad8807cc50ddeac42343729e25"`
Sep 19 11:56:24.563 INFO blam! 695963bfb53d9e052cbdd0cd5c3c44b9257cd8ad8807cc50ddeac42343729e25