Aug 02 12:34:25.509 INFO checking compact-0.2.5 against 1.27.2 for lazy_static-1
Aug 02 12:34:25.509 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:34:25.510 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:34:25.510 INFO running `"docker" "create" "-v" "/tmp/crater.kDlvQYxwpft8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 12:34:25.727 INFO blam! 4a0c5bea7c18961b73a4622bd2364b60a0559e923ad3a43248f9eb4cc2b0d3ea
Aug 02 12:34:25.729 INFO running `"docker" "start" "-a" "4a0c5bea7c18961b73a4622bd2364b60a0559e923ad3a43248f9eb4cc2b0d3ea"`
Aug 02 12:34:26.625 INFO kablam!     Checking simple_allocator_trait v0.1.0
Aug 02 12:34:27.256 INFO kablam!     Checking compact v0.2.5 (file:///source)
Aug 02 12:34:28.560 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:34:28.560 INFO kablam!   --> src/lib.rs:17:1
Aug 02 12:34:28.560 INFO kablam!    |
Aug 02 12:34:28.560 INFO kablam! 17 | #![feature(specialization)]
Aug 02 12:34:28.560 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 12:34:28.561 INFO kablam! 
Aug 02 12:34:28.561 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:34:28.561 INFO kablam!   --> src/lib.rs:18:1
Aug 02 12:34:28.561 INFO kablam!    |
Aug 02 12:34:28.561 INFO kablam! 18 | #![feature(optin_builtin_traits)]
Aug 02 12:34:28.561 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 12:34:28.561 INFO kablam! 
Aug 02 12:34:28.564 INFO kablam! error: aborting due to 2 previous errors
Aug 02 12:34:28.564 INFO kablam! 
Aug 02 12:34:28.564 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:34:28.572 INFO kablam! error: Could not compile `compact`.
Aug 02 12:34:28.572 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 12:34:28.826 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:34:28.826 INFO kablam!   --> src/lib.rs:17:1
Aug 02 12:34:28.826 INFO kablam!    |
Aug 02 12:34:28.826 INFO kablam! 17 | #![feature(specialization)]
Aug 02 12:34:28.826 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 12:34:28.826 INFO kablam! 
Aug 02 12:34:28.826 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:34:28.826 INFO kablam!   --> src/lib.rs:18:1
Aug 02 12:34:28.826 INFO kablam!    |
Aug 02 12:34:28.826 INFO kablam! 18 | #![feature(optin_builtin_traits)]
Aug 02 12:34:28.826 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 12:34:28.826 INFO kablam! 
Aug 02 12:34:28.831 INFO kablam! error: aborting due to 2 previous errors
Aug 02 12:34:28.831 INFO kablam! 
Aug 02 12:34:28.831 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:34:28.841 INFO kablam! error: Could not compile `compact`.
Aug 02 12:34:28.841 INFO kablam! 
Aug 02 12:34:28.841 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 12:34:28.842 INFO kablam! su: No module specific data is present
Aug 02 12:34:29.473 INFO running `"docker" "rm" "-f" "4a0c5bea7c18961b73a4622bd2364b60a0559e923ad3a43248f9eb4cc2b0d3ea"`
Aug 02 12:34:29.621 INFO blam! 4a0c5bea7c18961b73a4622bd2364b60a0559e923ad3a43248f9eb4cc2b0d3ea