Demo build failure

[jlb6740]

Trying to run the example with this command:

cargo run --release --example demo

Here is the end of the error

cargo:warning=c++: error: vendor/src/allocator.cpp: No such file or directory
cargo:warning=c++: fatal error: no input files
cargo:warning=compilation terminated.
exit code: 1

--- stderr

error occurred: Command "c++" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-m64" "-I" "src" "-Wall" "-Wextra" "-std=c++11" "-o" "/home/jlb6740/workloads/meshopt-rs/target/release/build/meshopt-1cbb12cbae4a23de/out/vendor/src/allocator.o" "-c" "vendor/src/allocator.cpp" with args "c++" did not execute successfully (status code exit code: 1).

[DzmitryFil]

looks like you didn't clone vendor submodule
run git submodule update --init --recursive