Aug 02 06:24:29.757 INFO checking istring-0.1.12 against 1.27.2 for lazy_static-1
Aug 02 06:24:29.757 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:24:29.757 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:24:29.757 INFO running `"docker" "create" "-v" "/tmp/crater.mVj5OWdgWZUg:/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 06:24:29.990 INFO blam! 42e7fb13b374623dc0c397f6f80a70367be1d4c3623bd84c77072d6451affe3c
Aug 02 06:24:29.992 INFO running `"docker" "start" "-a" "42e7fb13b374623dc0c397f6f80a70367be1d4c3623bd84c77072d6451affe3c"`
Aug 02 06:24:31.683 INFO kablam!     Checking istring v0.1.12 (file:///source)
Aug 02 06:24:31.951 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:24:31.951 INFO kablam!   --> src/lib.rs:19:1
Aug 02 06:24:31.951 INFO kablam!    |
Aug 02 06:24:31.951 INFO kablam! 19 | #![feature(untagged_unions, alloc, inclusive_range, allocator_api, unique, ptr_internals)]
Aug 02 06:24:31.951 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:24:31.951 INFO kablam! 
Aug 02 06:24:31.951 INFO kablam! error: aborting due to previous error
Aug 02 06:24:31.951 INFO kablam! 
Aug 02 06:24:31.951 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 06:24:31.952 INFO kablam! error: Could not compile `istring`.
Aug 02 06:24:31.952 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 06:24:32.179 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:24:32.179 INFO kablam!   --> src/lib.rs:19:1
Aug 02 06:24:32.179 INFO kablam!    |
Aug 02 06:24:32.179 INFO kablam! 19 | #![feature(untagged_unions, alloc, inclusive_range, allocator_api, unique, ptr_internals)]
Aug 02 06:24:32.179 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:24:32.179 INFO kablam! 
Aug 02 06:24:32.181 INFO kablam! error: aborting due to previous error
Aug 02 06:24:32.181 INFO kablam! 
Aug 02 06:24:32.181 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 06:24:32.187 INFO kablam! error: Could not compile `istring`.
Aug 02 06:24:32.187 INFO kablam! 
Aug 02 06:24:32.187 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 06:24:32.188 INFO kablam! su: No module specific data is present
Aug 02 06:24:33.469 INFO running `"docker" "rm" "-f" "42e7fb13b374623dc0c397f6f80a70367be1d4c3623bd84c77072d6451affe3c"`
Aug 02 06:24:33.653 INFO blam! 42e7fb13b374623dc0c397f6f80a70367be1d4c3623bd84c77072d6451affe3c