Sep 17 18:57:55.957 INFO checking rerast-0.1.28 against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033
Sep 17 18:57:55.957 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets
Sep 17 18:57:55.957 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-1/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/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=1000" "-e" "CMD=cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 18:57:56.114 INFO blam! 9a4116a25ea2134e1a36737bf09972f2bdf128c24f412330cbb236fbd73d836d
Sep 17 18:57:56.116 INFO running `"docker" "start" "-a" "9a4116a25ea2134e1a36737bf09972f2bdf128c24f412330cbb236fbd73d836d"`
Sep 17 18:57:57.537 INFO kablam! usermod: no changes
Sep 17 18:57:57.705 INFO kablam!     Checking rerast_macros v0.1.12
Sep 17 18:57:57.707 INFO kablam!    Compiling error-chain v0.11.0
Sep 17 18:57:57.956 INFO kablam!     Checking rerast v0.1.28 (/source)
Sep 17 18:57:58.707 INFO kablam!    Compiling cargo_metadata v0.5.8
Sep 17 18:58:01.659 INFO kablam! error[E0599]: no method named `attempt_match` found for type `std::option::Option<rustc::hir::Guard>` in the current scope
Sep 17 18:58:01.659 INFO kablam!    --> src/rule_matcher.rs:820:27
Sep 17 18:58:01.659 INFO kablam!     |
Sep 17 18:58:01.659 INFO kablam! 820 |             && self.guard.attempt_match(state, &code.guard)
Sep 17 18:58:01.659 INFO kablam!     |                           ^^^^^^^^^^^^^
Sep 17 18:58:01.659 INFO kablam!     |
Sep 17 18:58:01.659 INFO kablam!     = note: the method `attempt_match` exists but the following trait bounds were not satisfied:
Sep 17 18:58:01.659 INFO kablam!             `std::option::Option<rustc::hir::Guard> : rule_matcher::Matchable`
Sep 17 18:58:01.659 INFO kablam!     = help: items from traits can only be used if the trait is implemented and in scope
Sep 17 18:58:01.659 INFO kablam!     = note: the following trait defines an item `attempt_match`, perhaps you need to implement it:
Sep 17 18:58:01.659 INFO kablam!             candidate #1: `rule_matcher::Matchable`
Sep 17 18:58:01.660 INFO kablam! 
Sep 17 18:58:01.763 INFO kablam! error: aborting due to previous error
Sep 17 18:58:01.763 INFO kablam! 
Sep 17 18:58:01.763 INFO kablam! For more information about this error, try `rustc --explain E0599`.
Sep 17 18:58:01.791 INFO kablam! error: Could not compile `rerast`.
Sep 17 18:58:01.791 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 17 18:58:01.848 INFO kablam! error: build failed
Sep 17 18:58:01.850 INFO kablam! su: No module specific data is present
Sep 17 18:58:02.502 INFO running `"docker" "rm" "-f" "9a4116a25ea2134e1a36737bf09972f2bdf128c24f412330cbb236fbd73d836d"`
Sep 17 18:58:02.578 INFO blam! 9a4116a25ea2134e1a36737bf09972f2bdf128c24f412330cbb236fbd73d836d