Aug 18 02:24:58.795 INFO checking calculator-0.0.1 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 18 02:24:58.795 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 18 02:24:58.795 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 18 02:24:58.795 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-3/master#142bb27373126edf8367f526358b6c72ecf1d8df:/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 +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 18 02:24:58.974 INFO blam! a5e3c2ab008fe16bb48daddcb83b870c4f6327abf67720e5b7c5df19187da30a
Aug 18 02:24:58.976 INFO running `"docker" "start" "-a" "a5e3c2ab008fe16bb48daddcb83b870c4f6327abf67720e5b7c5df19187da30a"`
Aug 18 02:24:59.982 INFO kablam!     Checking vec_map v0.0.1
Aug 18 02:25:01.095 INFO kablam!     Checking calculator v0.0.1 (file:///source)
Aug 18 02:25:02.634 INFO kablam! error[E0635]: unknown feature `collections`
Aug 18 02:25:02.634 INFO kablam!  --> src/expr.rs:4:12
Aug 18 02:25:02.634 INFO kablam!   |
Aug 18 02:25:02.634 INFO kablam! 4 | #![feature(collections)]
Aug 18 02:25:02.635 INFO kablam!   |            ^^^^^^^^^^^
Aug 18 02:25:02.646 INFO kablam! 
Aug 18 02:25:02.694 INFO kablam! error: aborting due to previous error
Aug 18 02:25:02.694 INFO kablam! 
Aug 18 02:25:02.694 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 18 02:25:02.726 INFO kablam! error: Could not compile `calculator`.
Aug 18 02:25:02.727 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 18 02:25:03.179 INFO kablam! error[E0635]: unknown feature `collections`
Aug 18 02:25:03.179 INFO kablam!  --> src/expr.rs:4:12
Aug 18 02:25:03.179 INFO kablam!   |
Aug 18 02:25:03.179 INFO kablam! 4 | #![feature(collections)]
Aug 18 02:25:03.179 INFO kablam!   |            ^^^^^^^^^^^
Aug 18 02:25:03.179 INFO kablam! 
Aug 18 02:25:03.226 INFO kablam! error: aborting due to previous error
Aug 18 02:25:03.226 INFO kablam! 
Aug 18 02:25:03.226 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 18 02:25:03.238 INFO kablam! error: Could not compile `calculator`.
Aug 18 02:25:03.238 INFO kablam! 
Aug 18 02:25:03.238 INFO kablam! To learn more, run the command again with --verbose.
Aug 18 02:25:03.240 INFO kablam! su: No module specific data is present
Aug 18 02:25:03.790 INFO running `"docker" "rm" "-f" "a5e3c2ab008fe16bb48daddcb83b870c4f6327abf67720e5b7c5df19187da30a"`
Aug 18 02:25:03.970 INFO blam! a5e3c2ab008fe16bb48daddcb83b870c4f6327abf67720e5b7c5df19187da30a