tweak mime features for ci

Author: bdbai

ci/run.sh

@@ -29,6 +29,7 @@ if [ -z "$NO_RUN" ]; then
     cargo test --target $TARGET $features
     cargo test --target $TARGET --features static-curl $features
     cargo test --target $TARGET --features static-curl,protocol-ftp $features
+    cargo test --target $TARGET --features mime $features
 
     # Note that `-Clink-dead-code` is passed here to suppress `--gc-sections` to
     # help confirm that we're compiling everything necessary for curl itself.

tests/mime.rs

@@ -1,3 +1,5 @@
+#![cfg(feature = "mime")]
+
 use curl::{
     easy::{ReadError, SeekResult},
     mime::PartDataHandler,