Aug 02 13:32:51.174 INFO checking calculator-0.0.1 against 1.27.2 for lazy_static-1
Aug 02 13:32:51.174 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:32:51.174 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:32:51.174 INFO running `"docker" "create" "-v" "/tmp/crater.pHuxPX9rwyyF:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 13:32:51.574 INFO blam! 9751da6ffebb2dbb4efb2aef1158ae4d36a69e26d979d7478f29c54cfd488c14
Aug 02 13:32:51.576 INFO running `"docker" "start" "-a" "9751da6ffebb2dbb4efb2aef1158ae4d36a69e26d979d7478f29c54cfd488c14"`
Aug 02 13:32:52.950 INFO kablam!     Checking vec_map v0.0.1
Aug 02 13:32:53.809 INFO kablam!     Checking calculator v0.0.1 (file:///source)
Aug 02 13:32:54.311 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:32:54.311 INFO kablam!  --> src/expr.rs:4:1
Aug 02 13:32:54.311 INFO kablam!   |
Aug 02 13:32:54.311 INFO kablam! 4 | #![feature(collections)]
Aug 02 13:32:54.311 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:32:54.312 INFO kablam! 
Aug 02 13:32:54.312 INFO kablam! error: aborting due to previous error
Aug 02 13:32:54.312 INFO kablam! 
Aug 02 13:32:54.312 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:32:54.321 INFO kablam! error: Could not compile `calculator`.
Aug 02 13:32:54.321 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:32:54.486 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:32:54.486 INFO kablam!  --> src/expr.rs:4:1
Aug 02 13:32:54.486 INFO kablam!   |
Aug 02 13:32:54.486 INFO kablam! 4 | #![feature(collections)]
Aug 02 13:32:54.486 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:32:54.486 INFO kablam! 
Aug 02 13:32:54.489 INFO kablam! error: aborting due to previous error
Aug 02 13:32:54.489 INFO kablam! 
Aug 02 13:32:54.489 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:32:54.498 INFO kablam! error: Could not compile `calculator`.
Aug 02 13:32:54.498 INFO kablam! 
Aug 02 13:32:54.499 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 13:32:54.499 INFO kablam! su: No module specific data is present
Aug 02 13:32:55.089 INFO running `"docker" "rm" "-f" "9751da6ffebb2dbb4efb2aef1158ae4d36a69e26d979d7478f29c54cfd488c14"`
Aug 02 13:32:55.272 INFO blam! 9751da6ffebb2dbb4efb2aef1158ae4d36a69e26d979d7478f29c54cfd488c14