Sep 04 06:14:45.652 INFO checking rerast-0.1.28 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 06:14:45.652 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 06:14:45.653 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 06:14:45.837 INFO blam! 085cc72c7ea4121192b79445fe40d3f0ddda8dc9540d4cd5f837f4498a564ae5
Sep 04 06:14:45.839 INFO running `"docker" "start" "-a" "085cc72c7ea4121192b79445fe40d3f0ddda8dc9540d4cd5f837f4498a564ae5"`
Sep 04 06:14:46.799 INFO kablam!     Checking rerast_macros v0.1.12
Sep 04 06:14:46.802 INFO kablam!    Compiling cargo_metadata v0.5.8
Sep 04 06:14:47.173 INFO kablam!     Checking rerast v0.1.28 (file:///source)
Sep 04 06:14:51.155 INFO kablam!    Compiling skeptic v0.13.3
Sep 04 06:14:52.740 INFO kablam! error[E0599]: no method named `attempt_match` found for type `std::option::Option<rustc::hir::Guard>` in the current scope
Sep 04 06:14:52.740 INFO kablam!    --> src/rule_matcher.rs:820:27
Sep 04 06:14:52.740 INFO kablam!     |
Sep 04 06:14:52.740 INFO kablam! 820 |             && self.guard.attempt_match(state, &code.guard)
Sep 04 06:14:52.740 INFO kablam!     |                           ^^^^^^^^^^^^^
Sep 04 06:14:52.740 INFO kablam!     |
Sep 04 06:14:52.740 INFO kablam!     = note: the method `attempt_match` exists but the following trait bounds were not satisfied:
Sep 04 06:14:52.740 INFO kablam!             `std::option::Option<rustc::hir::Guard> : rule_matcher::Matchable`
Sep 04 06:14:52.740 INFO kablam!     = help: items from traits can only be used if the trait is implemented and in scope
Sep 04 06:14:52.740 INFO kablam!     = note: the following trait defines an item `attempt_match`, perhaps you need to implement it:
Sep 04 06:14:52.741 INFO kablam!             candidate #1: `rule_matcher::Matchable`
Sep 04 06:14:52.741 INFO kablam! 
Sep 04 06:14:52.921 INFO kablam! error: aborting due to previous error
Sep 04 06:14:52.921 INFO kablam! 
Sep 04 06:14:52.921 INFO kablam! For more information about this error, try `rustc --explain E0599`.
Sep 04 06:14:52.945 INFO kablam! error: Could not compile `rerast`.
Sep 04 06:14:52.946 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 06:14:55.289 INFO kablam! error: build failed
Sep 04 06:14:55.291 INFO kablam! su: No module specific data is present
Sep 04 06:14:55.794 INFO running `"docker" "rm" "-f" "085cc72c7ea4121192b79445fe40d3f0ddda8dc9540d4cd5f837f4498a564ae5"`
Sep 04 06:14:55.895 INFO blam! 085cc72c7ea4121192b79445fe40d3f0ddda8dc9540d4cd5f837f4498a564ae5