Sep 01 13:54:22.748 INFO checking notbdu/rustbelt against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 01 13:54:22.748 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 01 13:54:22.748 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-3/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 13:54:23.001 INFO blam! 168d6dc3633165cec6062d42abaa29ef36d856f3d34ef12f996550e30aa7c341
Sep 01 13:54:23.004 INFO running `"docker" "start" "-a" "168d6dc3633165cec6062d42abaa29ef36d856f3d34ef12f996550e30aa7c341"`
Sep 01 13:54:23.998 INFO kablam!     Checking bitflags v0.4.0
Sep 01 13:54:23.999 INFO kablam!     Checking bit_field v0.7.0
Sep 01 13:54:23.999 INFO kablam!     Checking volatile v0.1.0
Sep 01 13:54:23.999 INFO kablam!     Checking rlibc v1.0.0
Sep 01 13:54:24.000 INFO kablam!     Checking spin v0.4.6
Sep 01 13:54:24.172 INFO kablam!     Checking multiboot2 v0.1.0
Sep 01 13:54:24.412 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 01 13:54:24.412 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:76
Sep 01 13:54:24.412 INFO kablam!   |
Sep 01 13:54:24.412 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 01 13:54:24.412 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 01 13:54:24.412 INFO kablam! 
Sep 01 13:54:24.412 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 01 13:54:24.412 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:53
Sep 01 13:54:24.412 INFO kablam!   |
Sep 01 13:54:24.412 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 01 13:54:24.412 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 01 13:54:24.412 INFO kablam! 
Sep 01 13:54:24.426 INFO kablam! error: aborting due to 2 previous errors
Sep 01 13:54:24.426 INFO kablam! 
Sep 01 13:54:24.426 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 01 13:54:24.433 INFO kablam! error: Could not compile `spin`.
Sep 01 13:54:24.434 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 13:54:24.808 INFO kablam! error: build failed
Sep 01 13:54:24.809 INFO kablam! su: No module specific data is present
Sep 01 13:54:25.266 INFO running `"docker" "rm" "-f" "168d6dc3633165cec6062d42abaa29ef36d856f3d34ef12f996550e30aa7c341"`
Sep 01 13:54:25.383 INFO blam! 168d6dc3633165cec6062d42abaa29ef36d856f3d34ef12f996550e30aa7c341