Sep 10 11:32:28.561 INFO checking rerast-0.1.28 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 11:32:28.561 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 11:32:28.561 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 11:32:28.702 INFO blam! 65cfc8d58252bbb00f21d14c4cce07c40918be92515ead116e5e5b7969dcb18c
Sep 10 11:32:28.704 INFO running `"docker" "start" "-a" "65cfc8d58252bbb00f21d14c4cce07c40918be92515ead116e5e5b7969dcb18c"`
Sep 10 11:32:29.694 INFO kablam! usermod: no changes
Sep 10 11:32:29.963 INFO kablam!     Checking rerast_macros v0.1.12
Sep 10 11:32:29.967 INFO kablam!    Compiling error-chain v0.11.0
Sep 10 11:32:30.323 INFO kablam!     Checking rerast v0.1.28 (file:///source)
Sep 10 11:32:31.317 INFO kablam!    Compiling cargo_metadata v0.5.8
Sep 10 11:32:34.700 INFO kablam! error[E0599]: no method named `attempt_match` found for type `std::option::Option<rustc::hir::Guard>` in the current scope
Sep 10 11:32:34.700 INFO kablam!    --> src/rule_matcher.rs:820:27
Sep 10 11:32:34.700 INFO kablam!     |
Sep 10 11:32:34.700 INFO kablam! 820 |             && self.guard.attempt_match(state, &code.guard)
Sep 10 11:32:34.700 INFO kablam!     |                           ^^^^^^^^^^^^^
Sep 10 11:32:34.700 INFO kablam!     |
Sep 10 11:32:34.700 INFO kablam!     = note: the method `attempt_match` exists but the following trait bounds were not satisfied:
Sep 10 11:32:34.700 INFO kablam!             `std::option::Option<rustc::hir::Guard> : rule_matcher::Matchable`
Sep 10 11:32:34.700 INFO kablam!     = help: items from traits can only be used if the trait is implemented and in scope
Sep 10 11:32:34.700 INFO kablam!     = note: the following trait defines an item `attempt_match`, perhaps you need to implement it:
Sep 10 11:32:34.700 INFO kablam!             candidate #1: `rule_matcher::Matchable`
Sep 10 11:32:34.700 INFO kablam! 
Sep 10 11:32:34.932 INFO kablam! error: aborting due to previous error
Sep 10 11:32:34.932 INFO kablam! 
Sep 10 11:32:34.932 INFO kablam! For more information about this error, try `rustc --explain E0599`.
Sep 10 11:32:34.949 INFO kablam! error: Could not compile `rerast`.
Sep 10 11:32:34.949 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 11:32:35.662 INFO kablam! error: build failed
Sep 10 11:32:35.663 INFO kablam! su: No module specific data is present
Sep 10 11:32:36.508 INFO running `"docker" "rm" "-f" "65cfc8d58252bbb00f21d14c4cce07c40918be92515ead116e5e5b7969dcb18c"`
Sep 10 11:32:36.624 INFO blam! 65cfc8d58252bbb00f21d14c4cce07c40918be92515ead116e5e5b7969dcb18c