Aug 02 03:19:54.543 INFO checking numer-0.1.0 against 1.27.2 for lazy_static-1
Aug 02 03:19:54.543 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:19:54.543 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:19:54.544 INFO running `"docker" "create" "-v" "/tmp/crater.mRJesFBm6KYJ:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 03:19:54.722 INFO blam! 5e269f3a842b5f267006f684d824409796108a1b3d4b010b6a2e86c5d37c03c4
Aug 02 03:19:54.723 INFO running `"docker" "start" "-a" "5e269f3a842b5f267006f684d824409796108a1b3d4b010b6a2e86c5d37c03c4"`
Aug 02 03:19:55.738 INFO kablam!     Checking numer v0.1.0 (file:///source)
Aug 02 03:19:55.929 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 03:19:55.929 INFO kablam!  --> src/lib.rs:1:1
Aug 02 03:19:55.929 INFO kablam!   |
Aug 02 03:19:55.929 INFO kablam! 1 | #![feature(core_float)]
Aug 02 03:19:55.929 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 03:19:55.929 INFO kablam! 
Aug 02 03:19:55.929 INFO kablam! error: aborting due to previous error
Aug 02 03:19:55.929 INFO kablam! 
Aug 02 03:19:55.930 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 03:19:55.936 INFO kablam! error: Could not compile `numer`.
Aug 02 03:19:55.937 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 03:19:56.102 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 03:19:56.102 INFO kablam!  --> src/lib.rs:1:1
Aug 02 03:19:56.102 INFO kablam!   |
Aug 02 03:19:56.102 INFO kablam! 1 | #![feature(core_float)]
Aug 02 03:19:56.102 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 03:19:56.102 INFO kablam! 
Aug 02 03:19:56.102 INFO kablam! error: aborting due to previous error
Aug 02 03:19:56.103 INFO kablam! 
Aug 02 03:19:56.103 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 03:19:56.111 INFO kablam! error: Could not compile `numer`.
Aug 02 03:19:56.111 INFO kablam! 
Aug 02 03:19:56.111 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 03:19:56.112 INFO kablam! su: No module specific data is present
Aug 02 03:19:56.718 INFO running `"docker" "rm" "-f" "5e269f3a842b5f267006f684d824409796108a1b3d4b010b6a2e86c5d37c03c4"`
Aug 02 03:19:56.887 INFO blam! 5e269f3a842b5f267006f684d824409796108a1b3d4b010b6a2e86c5d37c03c4