Aug 02 12:14:42.275 INFO checking crates-api-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 12:14:42.275 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:14:42.275 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:14:42.276 INFO running `"docker" "create" "-v" "/tmp/crater.aGwU5g9hL81R:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2+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 12:14:42.444 INFO blam! 40fddf2b78542b7004578e610d7da3513e5d7a713787ab901ca855699fe63f0a
Aug 02 12:14:42.446 INFO running `"docker" "start" "-a" "40fddf2b78542b7004578e610d7da3513e5d7a713787ab901ca855699fe63f0a"`
Aug 02 12:14:43.605 INFO kablam! warning: file found to be present in multiple build targets: /source/examples/check.rs
Aug 02 12:14:43.730 INFO kablam!     Checking crates-api v0.1.0 (file:///source)
Aug 02 12:14:45.347 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:14:45.347 INFO kablam!  --> src/lib.rs:4:1
Aug 02 12:14:45.347 INFO kablam!   |
Aug 02 12:14:45.347 INFO kablam! 4 | #![feature(proc_macro)]
Aug 02 12:14:45.347 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 12:14:45.347 INFO kablam! 
Aug 02 12:14:45.349 INFO kablam! error: aborting due to previous error
Aug 02 12:14:45.349 INFO kablam! 
Aug 02 12:14:45.349 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:14:45.360 INFO kablam! error: Could not compile `crates-api`.
Aug 02 12:14:45.360 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 12:14:45.385 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:14:45.385 INFO kablam!  --> src/lib.rs:4:1
Aug 02 12:14:45.386 INFO kablam!   |
Aug 02 12:14:45.386 INFO kablam! 4 | #![feature(proc_macro)]
Aug 02 12:14:45.386 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 12:14:45.386 INFO kablam! 
Aug 02 12:14:45.387 INFO kablam! error: aborting due to previous error
Aug 02 12:14:45.387 INFO kablam! 
Aug 02 12:14:45.387 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:14:45.402 INFO kablam! error: Could not compile `crates-api`.
Aug 02 12:14:45.402 INFO kablam! 
Aug 02 12:14:45.402 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 12:14:45.403 INFO kablam! su: No module specific data is present
Aug 02 12:14:45.891 INFO running `"docker" "rm" "-f" "40fddf2b78542b7004578e610d7da3513e5d7a713787ab901ca855699fe63f0a"`
Aug 02 12:14:45.997 INFO blam! 40fddf2b78542b7004578e610d7da3513e5d7a713787ab901ca855699fe63f0a