Aug 30 22:26:28.968 INFO checking calculator-0.0.1 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 22:26:28.968 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 22:26:28.968 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-1/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 22:26:29.194 INFO blam! dbe8cfa4086297d659e86c16c39e1e67af45911756afa220c09f296581072cff
Aug 30 22:26:29.196 INFO running `"docker" "start" "-a" "dbe8cfa4086297d659e86c16c39e1e67af45911756afa220c09f296581072cff"`
Aug 30 22:26:29.857 INFO kablam!     Checking calculator v0.0.1 (file:///source)
Aug 30 22:26:30.947 INFO kablam! error[E0635]: unknown feature `collections`
Aug 30 22:26:30.947 INFO kablam!  --> src/expr.rs:4:12
Aug 30 22:26:30.947 INFO kablam!   |
Aug 30 22:26:30.947 INFO kablam! 4 | #![feature(collections)]
Aug 30 22:26:30.947 INFO kablam!   |            ^^^^^^^^^^^
Aug 30 22:26:30.948 INFO kablam! 
Aug 30 22:26:30.970 INFO kablam! error: aborting due to previous error
Aug 30 22:26:30.971 INFO kablam! 
Aug 30 22:26:30.971 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 30 22:26:30.980 INFO kablam! error: Could not compile `calculator`.
Aug 30 22:26:30.981 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 22:26:31.571 INFO kablam! error[E0635]: unknown feature `collections`
Aug 30 22:26:31.571 INFO kablam!  --> src/expr.rs:4:12
Aug 30 22:26:31.571 INFO kablam!   |
Aug 30 22:26:31.572 INFO kablam! 4 | #![feature(collections)]
Aug 30 22:26:31.572 INFO kablam!   |            ^^^^^^^^^^^
Aug 30 22:26:31.572 INFO kablam! 
Aug 30 22:26:31.622 INFO kablam! error: aborting due to previous error
Aug 30 22:26:31.622 INFO kablam! 
Aug 30 22:26:31.622 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 30 22:26:31.632 INFO kablam! error: Could not compile `calculator`.
Aug 30 22:26:31.632 INFO kablam! 
Aug 30 22:26:31.632 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 22:26:31.635 INFO kablam! su: No module specific data is present
Aug 30 22:26:32.200 INFO running `"docker" "rm" "-f" "dbe8cfa4086297d659e86c16c39e1e67af45911756afa220c09f296581072cff"`
Aug 30 22:26:32.305 INFO blam! dbe8cfa4086297d659e86c16c39e1e67af45911756afa220c09f296581072cff