Sep 20 00:13:29.393 INFO checking hbs-pow-0.2.0 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 00:13:29.393 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 00:13:29.393 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-3/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 00:13:29.738 INFO blam! 5d86d4905f33264334a32d05f321bed42fc542d2efdb22f16732f2fe6fc7f916
Sep 20 00:13:29.741 INFO running `"docker" "start" "-a" "5d86d4905f33264334a32d05f321bed42fc542d2efdb22f16732f2fe6fc7f916"`
Sep 20 00:13:30.947 INFO kablam! usermod: no changes
Sep 20 00:13:31.018 INFO kablam!    Compiling hbs-pow-sys v0.2.1
Sep 20 00:13:36.204 INFO kablam!     Checking hbs-pow v0.2.0 (/source)
Sep 20 00:13:36.775 INFO kablam! warning: static variable `received_cb` should have an upper case name such as `RECEIVED_CB`
Sep 20 00:13:36.775 INFO kablam!    --> lib.rs:212:9
Sep 20 00:13:36.775 INFO kablam!     |
Sep 20 00:13:36.775 INFO kablam! 212 |         static mut received_cb: bool = false;
Sep 20 00:13:36.775 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 00:13:36.775 INFO kablam! 
Sep 20 00:13:36.819 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.84s
Sep 20 00:13:36.819 INFO kablam! su: No module specific data is present
Sep 20 00:13:37.805 INFO running `"docker" "rm" "-f" "5d86d4905f33264334a32d05f321bed42fc542d2efdb22f16732f2fe6fc7f916"`
Sep 20 00:13:37.907 INFO blam! 5d86d4905f33264334a32d05f321bed42fc542d2efdb22f16732f2fe6fc7f916