Aug 01 18:08:42.601 INFO checking zmq-rs-0.1.8 against 1.27.2 for lazy_static-1
Aug 01 18:08:42.601 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:08:42.601 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:08:42.601 INFO running `"docker" "create" "-v" "/tmp/crater.dU4Gu87ZxPwA:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 01 18:08:42.869 INFO blam! 1c4745b1a7dab5bdb3935abef8372795fb0ef4158225562ed0cab78b03662134
Aug 01 18:08:42.875 INFO running `"docker" "start" "-a" "1c4745b1a7dab5bdb3935abef8372795fb0ef4158225562ed0cab78b03662134"`
Aug 01 18:08:43.818 INFO kablam!    Compiling zmq-ffi v0.1.3
Aug 01 18:08:45.468 INFO kablam!     Checking zmq-rs v0.1.8 (file:///source)
Aug 01 18:08:48.369 INFO kablam! warning: variable does not need to be mutable
Aug 01 18:08:48.369 INFO kablam!  --> examples/zguide/hwserver.rs:8:9
Aug 01 18:08:48.370 INFO kablam!   |
Aug 01 18:08:48.370 INFO kablam! 8 |     let mut context = zmq::Context::new().unwrap();
Aug 01 18:08:48.370 INFO kablam!   |         ----^^^^^^^
Aug 01 18:08:48.370 INFO kablam!   |         |
Aug 01 18:08:48.370 INFO kablam!   |         help: remove this `mut`
Aug 01 18:08:48.370 INFO kablam!   |
Aug 01 18:08:48.370 INFO kablam!   = note: #[warn(unused_mut)] on by default
Aug 01 18:08:48.370 INFO kablam! 
Aug 01 18:08:48.773 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.98s
Aug 01 18:08:48.776 INFO kablam! su: No module specific data is present
Aug 01 18:08:49.282 INFO running `"docker" "rm" "-f" "1c4745b1a7dab5bdb3935abef8372795fb0ef4158225562ed0cab78b03662134"`
Aug 01 18:08:49.447 INFO blam! 1c4745b1a7dab5bdb3935abef8372795fb0ef4158225562ed0cab78b03662134