これ
svn: warning: cannot set LC_CTYPE locale
svn: warning: environment variable LC_CTYPE is UTF-8
svn: warning: please check that your locale name is correct
未だに原因がよく分かってないから対処法だけ。
$ echo 'export LC_CTYPE=en_US.utf8' >> ~/.zshrc
$ source ~/.zshrc
ロケールの名前がUTF-8とutf8で異なってるのかな?