called `Result::unwrap()` on an `Err` value: Error { kind: Uncategorized, message: "no /proc/self/exe available. Is /proc mounted?" }
  Failed to get cargo version.
  `/home/udu/aports/main/fish/src/cargo --version` failed with error:
  cmake/FindRust.cmake:548 (_findrust_failed)
  cmake/FindRust.cmake:548 (_findrust_failed)
called `Result::unwrap()` on an `Err` value: Error { kind: Uncategorized, message: "no /proc/self/exe available. Is /proc mounted?" }
CMake Error at cmake/FindRust.cmake:29 (message):
  Failed to get cargo version.
  `/home/udu/aports/main/fish/src/cargo --version` failed with error:
  cmake/FindRust.cmake:548 (_findrust_failed)
-- Configuring incomplete, errors occurred!
>>> ERROR: fish: prepare failed