minor: fix macOS evergreen failures (#111)

Author: patrickfreed

.evergreen/install-dependencies.sh

@@ -3,5 +3,6 @@
 rm -rf ~/.rustup
 curl https://sh.rustup.rs -sSf | sh -s -- -y --no-modify-path
 
+echo "export CARGO_NET_GIT_FETCH_WITH_CLI=true" >> ~/.cargo/env
 . ~/.cargo/env
 rustup toolchain install nightly -c rustfmt