Sep 21 08:53:58.233 INFO checking hbs-acc-pow-0.2.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 08:53:58.233 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 08:53:58.233 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/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 08:53:58.415 INFO blam! acd27274ef9dadebc1f8c114afb3aa80aa7052aeef6e97fc8045fc4f3a58827e
Sep 21 08:53:58.416 INFO running `"docker" "start" "-a" "acd27274ef9dadebc1f8c114afb3aa80aa7052aeef6e97fc8045fc4f3a58827e"`
Sep 21 08:53:59.230 INFO kablam! usermod: no changes
Sep 21 08:53:59.290 INFO kablam!    Compiling hbs-acc-pow-sys v0.2.1
Sep 21 08:54:04.599 INFO kablam!     Checking hbs-acc-pow v0.2.0 (/source)
Sep 21 08:54:05.103 INFO kablam! warning: static variable `received_cb` should have an upper case name such as `RECEIVED_CB`
Sep 21 08:54:05.103 INFO kablam!    --> lib.rs:251:9
Sep 21 08:54:05.103 INFO kablam!     |
Sep 21 08:54:05.103 INFO kablam! 251 |         static mut received_cb: bool = false;
Sep 21 08:54:05.103 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 08:54:05.103 INFO kablam! 
Sep 21 08:54:05.121 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.86s
Sep 21 08:54:05.130 INFO kablam! su: No module specific data is present
Sep 21 08:54:05.667 INFO running `"docker" "rm" "-f" "acd27274ef9dadebc1f8c114afb3aa80aa7052aeef6e97fc8045fc4f3a58827e"`
Sep 21 08:54:05.752 INFO blam! acd27274ef9dadebc1f8c114afb3aa80aa7052aeef6e97fc8045fc4f3a58827e