Aug 02 02:32:58.887 INFO checking peg-syntax-ext-0.5.5 against 1.27.2+tmplazy for lazy_static-1
Aug 02 02:32:58.887 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:32:58.887 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:32:58.887 INFO running `"docker" "create" "-v" "/tmp/crater.5tWxQHSVAr01:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+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 02:32:59.227 INFO blam! 7dd9f1fb966c090ae2cef8b3c70bba87a5b53e389b16d55711a236ae75dbe805
Aug 02 02:32:59.234 INFO running `"docker" "start" "-a" "7dd9f1fb966c090ae2cef8b3c70bba87a5b53e389b16d55711a236ae75dbe805"`
Aug 02 02:33:00.787 INFO kablam!    Compiling peg v0.5.4
Aug 02 02:33:03.444 INFO kablam!     Checking peg-syntax-ext v0.5.5 (file:///source)
Aug 02 02:33:06.020 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:33:06.020 INFO kablam!  --> lib.rs:1:1
Aug 02 02:33:06.020 INFO kablam!   |
Aug 02 02:33:06.020 INFO kablam! 1 | #![feature(plugin_registrar, quote, rustc_private, box_patterns)]
Aug 02 02:33:06.020 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:33:06.021 INFO kablam! 
Aug 02 02:33:06.021 INFO kablam! error: aborting due to previous error
Aug 02 02:33:06.022 INFO kablam! 
Aug 02 02:33:06.022 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:33:06.048 INFO kablam! error: Could not compile `peg-syntax-ext`.
Aug 02 02:33:06.048 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:33:06.297 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:33:06.297 INFO kablam!  --> lib.rs:1:1
Aug 02 02:33:06.298 INFO kablam!   |
Aug 02 02:33:06.298 INFO kablam! 1 | #![feature(plugin_registrar, quote, rustc_private, box_patterns)]
Aug 02 02:33:06.298 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:33:06.298 INFO kablam! 
Aug 02 02:33:06.298 INFO kablam! error: aborting due to previous error
Aug 02 02:33:06.298 INFO kablam! 
Aug 02 02:33:06.299 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:33:06.317 INFO kablam! error: Could not compile `peg-syntax-ext`.
Aug 02 02:33:06.317 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:33:11.389 INFO kablam! error: build failed
Aug 02 02:33:11.391 INFO kablam! su: No module specific data is present
Aug 02 02:33:11.943 INFO running `"docker" "rm" "-f" "7dd9f1fb966c090ae2cef8b3c70bba87a5b53e389b16d55711a236ae75dbe805"`
Aug 02 02:33:12.093 INFO blam! 7dd9f1fb966c090ae2cef8b3c70bba87a5b53e389b16d55711a236ae75dbe805