Blocking waiting for file lock on the registry index

Question

I followed the readme instructions for building Parity from source to execute the following command on my Mac:

cargo build --release

Followed by :

~/.cargo/bin/cargo build --release

Both of these commands generate the following message while the prompt hangs:

Blocking waiting for file lock on the registry index

Please help.

Answer 1

Use the following command:

rm -rf ~/.cargo/registry/index/*

Or you might run:

cargo clean