Cannot build from source

[FalsePattern]

The project cannot be built with build.sh.

> bash ./build.sh
+ cd native
+ cargo build --release --target x64-custom.json
    Updating crates.io index
error: failed to get `mapping_macros` as a dependency of package `native v0.1.0 (/home/falsepattern/greg-emitters/native)`

Caused by:
  failed to load source for dependency `mapping_macros`

Caused by:
  Unable to update /home/falsepattern/mcct/mapping_macros

Caused by:
  failed to read `/home/falsepattern/mcct/mapping_macros/Cargo.toml`

Caused by:
  No such file or directory (os error 2)

[FalsePattern]

@cyb0124 any progress on this?