Aug 30 22:26:28.775 INFO checking calculator-0.0.1 against try#bc5a74802bb3ffc82f51ef04bca58d64220124c4 for pr-53699
Aug 30 22:26:28.775 INFO running: cargo +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets
Aug 30 22:26:28.775 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53699/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-3/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/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 +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 22:26:28.961 INFO blam! 644fb2fd4a4bff5cb14db05f5b336e504bb7584dfeda551dcea437115a00948a
Aug 30 22:26:28.963 INFO running `"docker" "start" "-a" "644fb2fd4a4bff5cb14db05f5b336e504bb7584dfeda551dcea437115a00948a"`
Aug 30 22:26:29.592 INFO kablam!     Checking vec_map v0.0.1
Aug 30 22:26:30.618 INFO kablam!     Checking calculator v0.0.1 (file:///source)
Aug 30 22:26:31.711 INFO kablam! error[E0635]: unknown feature `collections`
Aug 30 22:26:31.711 INFO kablam!  --> src/expr.rs:4:12
Aug 30 22:26:31.711 INFO kablam!   |
Aug 30 22:26:31.712 INFO kablam! 4 | #![feature(collections)]
Aug 30 22:26:31.712 INFO kablam!   |            ^^^^^^^^^^^
Aug 30 22:26:31.712 INFO kablam! 
Aug 30 22:26:31.733 INFO kablam! error: aborting due to previous error
Aug 30 22:26:31.733 INFO kablam! 
Aug 30 22:26:31.733 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 30 22:26:31.741 INFO kablam! error: Could not compile `calculator`.
Aug 30 22:26:31.742 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 22:26:32.186 INFO kablam! error[E0635]: unknown feature `collections`
Aug 30 22:26:32.186 INFO kablam!  --> src/expr.rs:4:12
Aug 30 22:26:32.186 INFO kablam!   |
Aug 30 22:26:32.186 INFO kablam! 4 | #![feature(collections)]
Aug 30 22:26:32.186 INFO kablam!   |            ^^^^^^^^^^^
Aug 30 22:26:32.186 INFO kablam! 
Aug 30 22:26:32.219 INFO kablam! error: aborting due to previous error
Aug 30 22:26:32.219 INFO kablam! 
Aug 30 22:26:32.219 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 30 22:26:32.226 INFO kablam! error: Could not compile `calculator`.
Aug 30 22:26:32.226 INFO kablam! 
Aug 30 22:26:32.226 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 22:26:32.228 INFO kablam! su: No module specific data is present
Aug 30 22:26:32.750 INFO running `"docker" "rm" "-f" "644fb2fd4a4bff5cb14db05f5b336e504bb7584dfeda551dcea437115a00948a"`
Aug 30 22:26:32.852 INFO blam! 644fb2fd4a4bff5cb14db05f5b336e504bb7584dfeda551dcea437115a00948a