Aug 02 10:28:08.398 INFO checking extern_attrib-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 10:28:08.398 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:28:08.398 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:28:08.398 INFO running `"docker" "create" "-v" "/tmp/crater.6UPUMlnRK1Le:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 10:28:08.643 INFO blam! 780ca47fdaf70964d0a8953cab362a1beb5f22b02df38be6b34b33d07fb40eea
Aug 02 10:28:08.645 INFO running `"docker" "start" "-a" "780ca47fdaf70964d0a8953cab362a1beb5f22b02df38be6b34b33d07fb40eea"`
Aug 02 10:28:10.080 INFO kablam!    Compiling extern_attrib v0.2.0 (file:///source)
Aug 02 10:28:11.371 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:28:11.371 INFO kablam!   --> src/lib.rs:13:1
Aug 02 10:28:11.371 INFO kablam!    |
Aug 02 10:28:11.371 INFO kablam! 13 | #![feature(proc_macro)]
Aug 02 10:28:11.371 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:28:11.371 INFO kablam! 
Aug 02 10:28:11.372 INFO kablam! error: aborting due to previous error
Aug 02 10:28:11.372 INFO kablam! 
Aug 02 10:28:11.372 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:28:11.374 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:28:11.374 INFO kablam!   --> src/lib.rs:13:1
Aug 02 10:28:11.375 INFO kablam!    |
Aug 02 10:28:11.375 INFO kablam! 13 | #![feature(proc_macro)]
Aug 02 10:28:11.375 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:28:11.375 INFO kablam! 
Aug 02 10:28:11.375 INFO kablam! error: aborting due to previous error
Aug 02 10:28:11.375 INFO kablam! 
Aug 02 10:28:11.375 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:28:11.379 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:28:11.379 INFO kablam!   --> src/lib.rs:13:1
Aug 02 10:28:11.379 INFO kablam!    |
Aug 02 10:28:11.379 INFO kablam! 13 | #![feature(proc_macro)]
Aug 02 10:28:11.379 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:28:11.379 INFO kablam! 
Aug 02 10:28:11.379 INFO kablam! error: aborting due to previous error
Aug 02 10:28:11.379 INFO kablam! 
Aug 02 10:28:11.380 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:28:11.382 INFO kablam! error: Could not compile `extern_attrib`.
Aug 02 10:28:11.382 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:28:11.387 INFO kablam! error: Could not compile `extern_attrib`.
Aug 02 10:28:11.388 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:28:11.390 INFO kablam! error: Could not compile `extern_attrib`.
Aug 02 10:28:11.390 INFO kablam! 
Aug 02 10:28:11.390 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 10:28:11.391 INFO kablam! su: No module specific data is present
Aug 02 10:28:12.142 INFO running `"docker" "rm" "-f" "780ca47fdaf70964d0a8953cab362a1beb5f22b02df38be6b34b33d07fb40eea"`
Aug 02 10:28:12.274 INFO blam! 780ca47fdaf70964d0a8953cab362a1beb5f22b02df38be6b34b33d07fb40eea