Make pytest failed

Compiling concrete-rust v0.1.0 (/home/user/concrete/frontends/concrete-rust)
error: failed to run custom build command for concrete-rust v0.1.0 (/home/user/concrete/frontends/concrete-rust)

Caused by:
process didn’t exit successfully: /home/user/concrete/frontends/concrete-rust/target/release/build/concrete-rust-fb43e241dbad916d/build-script-build (exit status: 101)
— stderr
capnp/concrete-protocol.capnp:13:20-38: error: Import failed: /capnp/c++.capnp
capnp/concrete-protocol.capnp:15:2-5: error: Not defined: Cxx
capnp/concrete-protocol.capnp:31:19-22: error: Not defined: Cxx

thread ‘main’ panicked at build.rs:7:10:
compiling schema: Error { kind: Failed, extra: “Error while trying to execute capnp compile: Premature end of file.” }
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace
make[1]: *** [Makefile:2: build] Error 101
make[1]: Leaving directory ‘/home/user/concrete/frontends/concrete-rust’
make: *** [Makefile:65: concrete-rust] Error 2