Sep 10 16:52:53.688 INFO checking hbs-0.2.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 16:52:53.688 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 16:52:53.688 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-1/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 16:52:53.930 INFO blam! f1daafae5f6c1ee56d284e77c2dbbd5b88e0652567021d4c243bb041420ce36d
Sep 10 16:52:53.932 INFO running `"docker" "start" "-a" "f1daafae5f6c1ee56d284e77c2dbbd5b88e0652567021d4c243bb041420ce36d"`
Sep 10 16:52:54.940 INFO kablam! usermod: no changes
Sep 10 16:52:54.975 INFO kablam!    Compiling hbs-sys v0.2.1
Sep 10 16:52:58.278 INFO kablam!     Checking hbs v0.2.0 (file:///source)
Sep 10 16:52:58.625 INFO kablam! warning: static variable `received_cb` should have an upper case name such as `RECEIVED_CB`
Sep 10 16:52:58.625 INFO kablam!    --> lib.rs:167:9
Sep 10 16:52:58.625 INFO kablam!     |
Sep 10 16:52:58.625 INFO kablam! 167 |         static mut received_cb: bool = false;
Sep 10 16:52:58.625 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 16:52:58.625 INFO kablam! 
Sep 10 16:52:58.634 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.67s
Sep 10 16:52:58.636 INFO kablam! su: No module specific data is present
Sep 10 16:52:59.232 INFO running `"docker" "rm" "-f" "f1daafae5f6c1ee56d284e77c2dbbd5b88e0652567021d4c243bb041420ce36d"`
Sep 10 16:52:59.285 INFO blam! f1daafae5f6c1ee56d284e77c2dbbd5b88e0652567021d4c243bb041420ce36d