Sep 21 06:33:18.352 INFO checking newhope-0.1.6 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 06:33:18.352 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 06:33:18.352 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-5/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 06:33:18.706 INFO blam! 93dfc68df16f029540ad5cc8ce6daf45bcb9d93af54d07d8217d4090fc3f3c77
Sep 21 06:33:18.708 INFO running `"docker" "start" "-a" "93dfc68df16f029540ad5cc8ce6daf45bcb9d93af54d07d8217d4090fc3f3c77"`
Sep 21 06:33:20.306 INFO kablam! usermod: no changes
Sep 21 06:33:20.368 INFO kablam!     Checking newhope v0.1.6 (/source)
Sep 21 06:33:20.913 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 21 06:33:20.913 INFO kablam!  --> src/lib.rs:1:12
Sep 21 06:33:20.913 INFO kablam!   |
Sep 21 06:33:20.913 INFO kablam! 1 | #![feature(step_by)]
Sep 21 06:33:20.913 INFO kablam!   |            ^^^^^^^
Sep 21 06:33:20.913 INFO kablam! 
Sep 21 06:33:20.932 INFO kablam! error: aborting due to previous error
Sep 21 06:33:20.932 INFO kablam! 
Sep 21 06:33:20.932 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 21 06:33:20.938 INFO kablam! error: Could not compile `newhope`.
Sep 21 06:33:20.938 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 21 06:33:21.089 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 21 06:33:21.089 INFO kablam!  --> src/lib.rs:1:12
Sep 21 06:33:21.089 INFO kablam!   |
Sep 21 06:33:21.089 INFO kablam! 1 | #![feature(step_by)]
Sep 21 06:33:21.089 INFO kablam!   |            ^^^^^^^
Sep 21 06:33:21.089 INFO kablam! 
Sep 21 06:33:21.107 INFO kablam! error: aborting due to previous error
Sep 21 06:33:21.107 INFO kablam! 
Sep 21 06:33:21.107 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 21 06:33:21.114 INFO kablam! error: Could not compile `newhope`.
Sep 21 06:33:21.114 INFO kablam! 
Sep 21 06:33:21.114 INFO kablam! To learn more, run the command again with --verbose.
Sep 21 06:33:21.116 INFO kablam! su: No module specific data is present
Sep 21 06:33:21.873 INFO running `"docker" "rm" "-f" "93dfc68df16f029540ad5cc8ce6daf45bcb9d93af54d07d8217d4090fc3f3c77"`
Sep 21 06:33:21.974 INFO blam! 93dfc68df16f029540ad5cc8ce6daf45bcb9d93af54d07d8217d4090fc3f3c77