Aug 02 07:12:40.647 INFO checking hotswap-0.6.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 07:12:40.647 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:12:40.647 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:12:40.647 INFO running `"docker" "create" "-v" "/tmp/crater.mdq6HdMceKTu:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2+tmplazy:/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 07:12:40.842 INFO blam! 1393649d84506400e2f4ebaff430728bab7a7a7dd897a2bf1fea872fc2604a5f
Aug 02 07:12:40.844 INFO running `"docker" "start" "-a" "1393649d84506400e2f4ebaff430728bab7a7a7dd897a2bf1fea872fc2604a5f"`
Aug 02 07:12:41.915 INFO kablam!    Compiling hotswap v0.6.0 (file:///source)
Aug 02 07:12:44.210 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:12:44.210 INFO kablam!  --> src/lib.rs:1:1
Aug 02 07:12:44.210 INFO kablam!   |
Aug 02 07:12:44.210 INFO kablam! 1 | #![feature(quote, plugin_registrar, rustc_private, box_syntax, stmt_expr_attributes)]
Aug 02 07:12:44.210 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 07:12:44.210 INFO kablam! 
Aug 02 07:12:44.214 INFO kablam! error: aborting due to previous error
Aug 02 07:12:44.214 INFO kablam! 
Aug 02 07:12:44.215 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:12:44.234 INFO kablam! error: Could not compile `hotswap`.
Aug 02 07:12:44.235 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 07:12:44.423 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:12:44.423 INFO kablam!  --> src/lib.rs:1:1
Aug 02 07:12:44.423 INFO kablam!   |
Aug 02 07:12:44.423 INFO kablam! 1 | #![feature(quote, plugin_registrar, rustc_private, box_syntax, stmt_expr_attributes)]
Aug 02 07:12:44.423 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 07:12:44.423 INFO kablam! 
Aug 02 07:12:44.426 INFO kablam! error: aborting due to previous error
Aug 02 07:12:44.426 INFO kablam! 
Aug 02 07:12:44.426 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:12:44.445 INFO kablam! error: Could not compile `hotswap`.
Aug 02 07:12:44.446 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 07:12:44.535 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:12:44.535 INFO kablam!  --> src/lib.rs:1:1
Aug 02 07:12:44.535 INFO kablam!   |
Aug 02 07:12:44.535 INFO kablam! 1 | #![feature(quote, plugin_registrar, rustc_private, box_syntax, stmt_expr_attributes)]
Aug 02 07:12:44.535 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 07:12:44.536 INFO kablam! 
Aug 02 07:12:44.539 INFO kablam! error: aborting due to previous error
Aug 02 07:12:44.539 INFO kablam! 
Aug 02 07:12:44.539 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:12:44.558 INFO kablam! error: Could not compile `hotswap`.
Aug 02 07:12:44.558 INFO kablam! 
Aug 02 07:12:44.558 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 07:12:44.560 INFO kablam! su: No module specific data is present
Aug 02 07:12:45.449 INFO running `"docker" "rm" "-f" "1393649d84506400e2f4ebaff430728bab7a7a7dd897a2bf1fea872fc2604a5f"`
Aug 02 07:12:45.612 INFO blam! 1393649d84506400e2f4ebaff430728bab7a7a7dd897a2bf1fea872fc2604a5f