failed to load source for a dependency on ewasm_api

[oracle3]

make
cargo build --target=wasm32-unknown-unknown --release
Updating git repository https://github.com/ignatenkobrain/num-bigint
Updating git repository https://github.com/cdetrio/rustc-serialize
Updating git repository https://github.com/ewasm/bn
Updating git repository https://github.com/ewasm/ewasm-rust-api
error: failed to load source for a dependency on ewasm_api

Caused by:
Unable to update https://github.com/ewasm/ewasm-rust-api?branch=remove-never-return#ae799bb7

Caused by:
revspec 'ae799bb78824c26df8ced07b0b17ec39873f69eb' not found; class=Reference (4); code=NotFound (-3)
Makefile:6: recipe for target 'all' failed
make: *** [all] Error 101