Aug 18 00:49:04.309 INFO checking cucumber-0.3.1 against try#a5d98b025f62ace80fe9d2a15781f900fc42515e for pr-53426
Aug 18 00:49:04.309 INFO running: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 18 00:49:04.309 INFO creating container for: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 18 00:49:04.310 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53426/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-2/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/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 +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 18 00:49:04.578 INFO blam! 0069482932f7c24c21d9442e89a2ba290b039d32327bd8f9889c926f92ad4e13
Aug 18 00:49:04.581 INFO running `"docker" "start" "-a" "0069482932f7c24c21d9442e89a2ba290b039d32327bd8f9889c926f92ad4e13"`
Aug 18 00:49:05.731 INFO kablam!    Compiling itertools v0.4.19
Aug 18 00:49:05.731 INFO kablam!    Compiling syntex_pos v0.39.0
Aug 18 00:49:08.699 INFO kablam!    Compiling syntex_errors v0.39.0
Aug 18 00:49:17.736 INFO kablam!    Compiling syntex_syntax v0.39.0
Aug 18 00:49:48.838 INFO kablam! error[E0502]: cannot borrow `cx.parse_sess.span_diagnostic` as immutable because it is also borrowed as mutable
Aug 18 00:49:48.838 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.39.0/src/ext/expand.rs:659:25
Aug 18 00:49:48.838 INFO kablam!     |
Aug 18 00:49:48.838 INFO kablam! 649 |         let mut expander = MacroExpander::new(&mut cx);
Aug 18 00:49:48.838 INFO kablam!     |                                               ------- mutable borrow occurs here
Aug 18 00:49:48.838 INFO kablam! ...
Aug 18 00:49:48.838 INFO kablam! 659 |         let err_count = cx.parse_sess.span_diagnostic.err_count();
Aug 18 00:49:48.838 INFO kablam!     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here
Aug 18 00:49:48.838 INFO kablam! 660 |         let mut ret = expander.fold_crate(c);
Aug 18 00:49:48.838 INFO kablam!     |                       -------- borrow later used here
Aug 18 00:49:48.838 INFO kablam! 
Aug 18 00:49:49.878 INFO kablam! error: aborting due to previous error
Aug 18 00:49:49.878 INFO kablam! 
Aug 18 00:49:49.878 INFO kablam! For more information about this error, try `rustc --explain E0502`.
Aug 18 00:49:49.911 INFO kablam! error: Could not compile `syntex_syntax`.
Aug 18 00:49:49.912 INFO kablam! 
Aug 18 00:49:49.912 INFO kablam! To learn more, run the command again with --verbose.
Aug 18 00:49:49.914 INFO kablam! su: No module specific data is present
Aug 18 00:49:50.401 INFO running `"docker" "rm" "-f" "0069482932f7c24c21d9442e89a2ba290b039d32327bd8f9889c926f92ad4e13"`
Aug 18 00:49:50.562 INFO blam! 0069482932f7c24c21d9442e89a2ba290b039d32327bd8f9889c926f92ad4e13