Aug 30 21:25:12.322 INFO checking concurrent-hashmap-0.2.2 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 21:25:12.322 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 21:25:12.322 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-1/master#ede55518431154bc761f7b2438cce9078c162700:/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 +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 21:25:12.547 INFO blam! def05ca83ab05cf8cb3b6572cb287d1488379dfbd02ecb3eeb41177cd98e44ca
Aug 30 21:25:12.549 INFO running `"docker" "start" "-a" "def05ca83ab05cf8cb3b6572cb287d1488379dfbd02ecb3eeb41177cd98e44ca"`
Aug 30 21:25:13.353 INFO kablam!     Checking spin v0.4.8
Aug 30 21:25:13.568 INFO kablam!     Checking concurrent-hashmap v0.2.2 (file:///source)
Aug 30 21:25:15.334 INFO kablam! warning: variable does not need to be mutable
Aug 30 21:25:15.334 INFO kablam!    --> src/map.rs:537:13
Aug 30 21:25:15.334 INFO kablam!     |
Aug 30 21:25:15.334 INFO kablam! 537 |         let mut e = map.find_mut(&1).unwrap().get();
Aug 30 21:25:15.334 INFO kablam!     |             ----^
Aug 30 21:25:15.334 INFO kablam!     |             |
Aug 30 21:25:15.334 INFO kablam!     |             help: remove this `mut`
Aug 30 21:25:15.334 INFO kablam!     |
Aug 30 21:25:15.334 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 30 21:25:15.334 INFO kablam! 
Aug 30 21:25:15.755 INFO kablam! error[E0635]: unknown feature `step_by`
Aug 30 21:25:15.755 INFO kablam!  --> examples/wordcount.rs:1:12
Aug 30 21:25:15.755 INFO kablam!   |
Aug 30 21:25:15.755 INFO kablam! 1 | #![feature(step_by)]
Aug 30 21:25:15.755 INFO kablam!   |            ^^^^^^^
Aug 30 21:25:15.755 INFO kablam! 
Aug 30 21:25:15.762 INFO kablam! error: aborting due to previous error
Aug 30 21:25:15.762 INFO kablam! 
Aug 30 21:25:15.763 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 30 21:25:15.773 INFO kablam! error: Could not compile `concurrent-hashmap`.
Aug 30 21:25:15.773 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 21:25:16.310 INFO kablam! error: build failed
Aug 30 21:25:16.311 INFO kablam! su: No module specific data is present
Aug 30 21:25:16.780 INFO running `"docker" "rm" "-f" "def05ca83ab05cf8cb3b6572cb287d1488379dfbd02ecb3eeb41177cd98e44ca"`
Aug 30 21:25:16.873 INFO blam! def05ca83ab05cf8cb3b6572cb287d1488379dfbd02ecb3eeb41177cd98e44ca