Add vimagit, no need for RustPlay, Build on F10

.vimrc

@@ -142,6 +142,9 @@ else
     " Git-gutter, shows git diffs in the gutter
     Plug 'airblade/vim-gitgutter'
 
+    " vimagit, for easy visual staging
+    Plug 'jreybert/vimagit'
+
     " surround.vim: quoting/parenthesizing made simple
     Plug 'tpope/vim-surround'
 
@@ -553,8 +556,10 @@ let g:rustfmt_autosave = 0
 nmap <F9> :RustFmt<CR>
 
 " Run RustPlay on keypress
-nmap <F10> :RustPlay<CR>
+"nmap <F10> :RustPlay<CR>
 
+" Run cargo build on keypress
+nmap <F10> :!cargo build<CR>
 
 "set hidden
 "let g:racer_cmd = "$HOME/.cargo/bin/racer"