message: Removed unnecessary update
diff: @@ -67,7 +67,6 @@ if $BUILD_NIGHTLY; then
  /bin/bash -c \
  "sudo mkdir -p $CARGO_TARGET_DIR \
  && sudo rm -rf $CARGO_INSTALL_ROOT \
  - && (rustup update || (rustup toolchain remove nightly && rustup toolchain install nightly)) \
  && rustup run nightly cargo install -f --features miscreant \
  && sudo chown -R $LOCAL_USER $CARGO_INSTALL_ROOT";
  else
  @@ -82,7 +81,6 @@ else
  /bin/bash -c \
  "sudo mkdir -p $CARGO_TARGET_DIR \
  && sudo rm -rf $CARGO_INSTALL_ROOT \
  - && (rustup update || (rustup toolchain remove stable && rustup toolchain install stable)) \
  && cargo install -f \
  && sudo chown -R $LOCAL_USER $CARGO_INSTALL_ROOT";
  fi
  