Aug 17 09:43:15.762 INFO checking spin-0.4.8 against try#a5d98b025f62ace80fe9d2a15781f900fc42515e for pr-53426
Aug 17 09:43:15.762 INFO running: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 09:43:15.762 INFO creating container for: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 09:43:15.762 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53426/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-4/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/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 +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 09:43:16.026 INFO blam! 5bf1bf0c098c69e44731967fbf1663c7108cd5bec7d69c054860d076db72e6c2
Aug 17 09:43:16.029 INFO running `"docker" "start" "-a" "5bf1bf0c098c69e44731967fbf1663c7108cd5bec7d69c054860d076db72e6c2"`
Aug 17 09:43:17.067 INFO kablam!     Checking spin v0.4.8 (file:///source)
Aug 17 09:43:17.505 INFO kablam! warning: unnecessary `unsafe` block
Aug 17 09:43:17.505 INFO kablam!    --> src/mutex.rs:156:9
Aug 17 09:43:17.505 INFO kablam!     |
Aug 17 09:43:17.505 INFO kablam! 156 |         unsafe { data.into_inner() }
Aug 17 09:43:17.505 INFO kablam!     |         ^^^^^^ unnecessary `unsafe` block
Aug 17 09:43:17.506 INFO kablam!     |
Aug 17 09:43:17.506 INFO kablam!     = note: #[warn(unused_unsafe)] on by default
Aug 17 09:43:17.507 INFO kablam! 
Aug 17 09:43:17.507 INFO kablam! warning: unnecessary `unsafe` block
Aug 17 09:43:17.507 INFO kablam!    --> src/rw_lock.rs:138:9
Aug 17 09:43:17.507 INFO kablam!     |
Aug 17 09:43:17.507 INFO kablam! 138 |         unsafe { data.into_inner() }
Aug 17 09:43:17.507 INFO kablam!     |         ^^^^^^ unnecessary `unsafe` block
Aug 17 09:43:17.508 INFO kablam! 
Aug 17 09:43:17.509 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 17 09:43:17.510 INFO kablam!  --> src/lib.rs:8:76
Aug 17 09:43:17.510 INFO kablam!   |
Aug 17 09:43:17.510 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 17 09:43:17.510 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 17 09:43:17.511 INFO kablam! 
Aug 17 09:43:17.512 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 09:43:17.512 INFO kablam!  --> src/lib.rs:8:53
Aug 17 09:43:17.512 INFO kablam!   |
Aug 17 09:43:17.512 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 17 09:43:17.512 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 17 09:43:17.512 INFO kablam! 
Aug 17 09:43:17.573 INFO kablam! error: aborting due to 2 previous errors
Aug 17 09:43:17.575 INFO kablam! 
Aug 17 09:43:17.575 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 09:43:17.582 INFO kablam! error: Could not compile `spin`.
Aug 17 09:43:17.583 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 09:43:18.587 INFO kablam! warning: unnecessary `unsafe` block
Aug 17 09:43:18.588 INFO kablam!    --> src/mutex.rs:156:9
Aug 17 09:43:18.588 INFO kablam!     |
Aug 17 09:43:18.588 INFO kablam! 156 |         unsafe { data.into_inner() }
Aug 17 09:43:18.588 INFO kablam!     |         ^^^^^^ unnecessary `unsafe` block
Aug 17 09:43:18.588 INFO kablam!     |
Aug 17 09:43:18.588 INFO kablam!     = note: #[warn(unused_unsafe)] on by default
Aug 17 09:43:18.588 INFO kablam! 
Aug 17 09:43:18.588 INFO kablam! warning: unnecessary `unsafe` block
Aug 17 09:43:18.588 INFO kablam!    --> src/rw_lock.rs:138:9
Aug 17 09:43:18.588 INFO kablam!     |
Aug 17 09:43:18.588 INFO kablam! 138 |         unsafe { data.into_inner() }
Aug 17 09:43:18.588 INFO kablam!     |         ^^^^^^ unnecessary `unsafe` block
Aug 17 09:43:18.589 INFO kablam! 
Aug 17 09:43:18.594 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 17 09:43:18.594 INFO kablam!  --> src/lib.rs:8:76
Aug 17 09:43:18.594 INFO kablam!   |
Aug 17 09:43:18.594 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 17 09:43:18.594 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 17 09:43:18.594 INFO kablam! 
Aug 17 09:43:18.595 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 09:43:18.595 INFO kablam!  --> src/lib.rs:8:53
Aug 17 09:43:18.595 INFO kablam!   |
Aug 17 09:43:18.595 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 17 09:43:18.595 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 17 09:43:18.595 INFO kablam! 
Aug 17 09:43:18.637 INFO kablam! error: aborting due to 2 previous errors
Aug 17 09:43:18.638 INFO kablam! 
Aug 17 09:43:18.638 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 09:43:18.649 INFO kablam! error: Could not compile `spin`.
Aug 17 09:43:18.649 INFO kablam! 
Aug 17 09:43:18.649 INFO kablam! To learn more, run the command again with --verbose.
Aug 17 09:43:18.651 INFO kablam! su: No module specific data is present
Aug 17 09:43:19.144 INFO running `"docker" "rm" "-f" "5bf1bf0c098c69e44731967fbf1663c7108cd5bec7d69c054860d076db72e6c2"`
Aug 17 09:43:19.308 INFO blam! 5bf1bf0c098c69e44731967fbf1663c7108cd5bec7d69c054860d076db72e6c2