Sep 06 09:11:37.548 INFO checking calculator-0.0.1 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 09:11:37.548 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 09:11:37.548 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 09:11:37.697 INFO blam! 6901304e2d95527f9f27ffcb992dc5acd72f18c101c7a03363889322186f6929
Sep 06 09:11:37.698 INFO running `"docker" "start" "-a" "6901304e2d95527f9f27ffcb992dc5acd72f18c101c7a03363889322186f6929"`
Sep 06 09:11:39.037 INFO kablam! usermod: no changes
Sep 06 09:11:39.068 INFO kablam!     Checking vec_map v0.0.1
Sep 06 09:11:39.534 INFO kablam!     Checking calculator v0.0.1 (file:///source)
Sep 06 09:11:40.122 INFO kablam! error[E0635]: unknown feature `collections`
Sep 06 09:11:40.122 INFO kablam!  --> src/expr.rs:4:12
Sep 06 09:11:40.122 INFO kablam!   |
Sep 06 09:11:40.122 INFO kablam! 4 | #![feature(collections)]
Sep 06 09:11:40.122 INFO kablam!   |            ^^^^^^^^^^^
Sep 06 09:11:40.122 INFO kablam! 
Sep 06 09:11:40.130 INFO kablam! error: aborting due to previous error
Sep 06 09:11:40.130 INFO kablam! 
Sep 06 09:11:40.130 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 06 09:11:40.137 INFO kablam! error: Could not compile `calculator`.
Sep 06 09:11:40.137 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 09:11:40.266 INFO kablam! error[E0635]: unknown feature `collections`
Sep 06 09:11:40.266 INFO kablam!  --> src/expr.rs:4:12
Sep 06 09:11:40.266 INFO kablam!   |
Sep 06 09:11:40.266 INFO kablam! 4 | #![feature(collections)]
Sep 06 09:11:40.266 INFO kablam!   |            ^^^^^^^^^^^
Sep 06 09:11:40.266 INFO kablam! 
Sep 06 09:11:40.291 INFO kablam! error: aborting due to previous error
Sep 06 09:11:40.291 INFO kablam! 
Sep 06 09:11:40.291 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 06 09:11:40.302 INFO kablam! error: Could not compile `calculator`.
Sep 06 09:11:40.302 INFO kablam! 
Sep 06 09:11:40.302 INFO kablam! To learn more, run the command again with --verbose.
Sep 06 09:11:40.302 INFO kablam! su: No module specific data is present
Sep 06 09:11:40.916 INFO running `"docker" "rm" "-f" "6901304e2d95527f9f27ffcb992dc5acd72f18c101c7a03363889322186f6929"`
Sep 06 09:11:41.008 INFO blam! 6901304e2d95527f9f27ffcb992dc5acd72f18c101c7a03363889322186f6929