Aug 01 17:33:11.688 INFO checking UnicodeSnowman/writing_an_interpreter_in_rust against 1.27.2+tmplazy for lazy_static-1
Aug 01 17:33:11.688 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:33:11.688 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:33:11.689 INFO running `"docker" "create" "-v" "/tmp/crater.eE2J1KEK8mbW:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+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 01 17:33:11.907 INFO blam! 4d897b0c01101fba2f97c50b63b7ad05784463eeee64caa7d12aadf2ea2343de
Aug 01 17:33:11.909 INFO running `"docker" "start" "-a" "4d897b0c01101fba2f97c50b63b7ad05784463eeee64caa7d12aadf2ea2343de"`
Aug 01 17:33:12.992 INFO kablam!     Checking writing_an_interpreter_in_rust v0.1.0 (file:///source)
Aug 01 17:33:13.298 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 17:33:13.298 INFO kablam!  --> src/main.rs:1:1
Aug 01 17:33:13.298 INFO kablam!   |
Aug 01 17:33:13.298 INFO kablam! 1 | #![feature(slice_patterns)]
Aug 01 17:33:13.298 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:33:13.299 INFO kablam! 
Aug 01 17:33:13.299 INFO kablam! error: aborting due to previous error
Aug 01 17:33:13.300 INFO kablam! 
Aug 01 17:33:13.300 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 17:33:13.308 INFO kablam! error: Could not compile `writing_an_interpreter_in_rust`.
Aug 01 17:33:13.309 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 17:33:13.338 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 17:33:13.338 INFO kablam!  --> src/main.rs:1:1
Aug 01 17:33:13.338 INFO kablam!   |
Aug 01 17:33:13.338 INFO kablam! 1 | #![feature(slice_patterns)]
Aug 01 17:33:13.338 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:33:13.338 INFO kablam! 
Aug 01 17:33:13.338 INFO kablam! error: aborting due to previous error
Aug 01 17:33:13.338 INFO kablam! 
Aug 01 17:33:13.338 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 17:33:13.347 INFO kablam! error: Could not compile `writing_an_interpreter_in_rust`.
Aug 01 17:33:13.347 INFO kablam! 
Aug 01 17:33:13.347 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 17:33:13.349 INFO kablam! su: No module specific data is present
Aug 01 17:33:13.874 INFO running `"docker" "rm" "-f" "4d897b0c01101fba2f97c50b63b7ad05784463eeee64caa7d12aadf2ea2343de"`
Aug 01 17:33:14.006 INFO blam! 4d897b0c01101fba2f97c50b63b7ad05784463eeee64caa7d12aadf2ea2343de