Removed 'Rust' text from test; Silenced missing rustc warning

powerlevel9k.zsh-theme

@@ -1104,7 +1104,7 @@ prompt_root_indicator() {
 # Print Rust version number
 prompt_rust_version() {
   local rust_version
-  rust_version=$(command rustc --version 2>&1)
+  rust_version=$(command rustc --version 2>/dev/null)
   # Remove "rustc " (including the whitespace) from the beginning
   # of the version string and remove everything after the next
   # whitespace. This way we'll end up with only the version.

test/segments/rust_version.spec

@@ -19,7 +19,7 @@ function testRust() {
   alias rustc=mockRust
   POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(rust_version)
 
-  assertEquals "%K{208} %F{black}Rust 0.4.1a-alpha %k%F{208}%f " "$(build_left_prompt)"
+  assertEquals "%K{208} %F{black}0.4.1a-alpha %k%F{208}%f " "$(build_left_prompt)"
 
   unset POWERLEVEL9K_LEFT_PROMPT_ELEMENTS
   unalias rustc