Cargo test Error

[bo-hub]

I am trying to run this projects. And when I ran cargo test, it returns this error below.

bob@bobvm:~/code/rust_demo/rust_lib_zk/bulletproofs$ cargo test
Updating crates.io index
error: failed to select a version for the requirement regex = "= 1.10.3"
candidate versions found which didn't match: 1.8.4, 1.8.3, 1.8.2, ...
location searched: crates.io index
required by package criterion v0.3.6
... which is depended on by bulletproofs v2.0.0 (/home/bob/code/rust_demo/rust_lib_zk/bulletproofs)

And my rust toolchain list is:

stable-x86_64-unknown-linux-gnu
nightly-2019-07-31-x86_64-unknown-linux-gnu (override)
nightly-x86_64-unknown-linux-gnu (default)
1.56.0-x86_64-unknown-linux-gnu

How to fix this?

Thanks inadvance.