Revert "Release a jobserver token while locking a file"
Revert "Release a jobserver token while locking a file"

This reverts commit d19b41f2c6981dcdf5270e8f4582a95e51927e2a.

vojtechkral/cargo,nipunn1313/cargo,nipunn1313/cargo,vojtechkral/cargo,vojtechkral/cargo,tshepang/cargo,tsurai/cargo,eminence/cargo,tshepang/cargo,rustyhorde/cargo,rustyhorde/cargo,tsurai/cargo,tshepang/cargo,rust-lang/cargo,tshepang/cargo,tsurai/cargo,rustyhorde/cargo,rust-lang/cargo,eminence/cargo,rust-lang/cargo,nipunn1313/cargo,tsurai/cargo,eminence/cargo,tsurai/cargo,eminence/cargo,vojtechkral/cargo,rustyhorde/cargo,nipunn1313/cargo,rust-lang/cargo