cabal.out

# cabal v2-build
Resolving dependencies...
Build profile: -w ghc-<GHCVER> -O1
In order, the following will be built:
 - q-0.1.0.0 (exe:q) (first run)
Configuring executable 'q' for q-0.1.0.0..
Preprocessing executable 'q' for q-0.1.0.0..
Building executable 'q' for q-0.1.0.0..
Error: cabal: Failed to build q-0.1.0.0-inplace-q.
# cabal v2-build
Resolving dependencies...
Build profile: -w ghc-<GHCVER> -O1
In order, the following will be built:
 - p-1.0 (lib) (first run)
 - q-0.1.0.0 (exe:q) (configuration changed)
Configuring library for p-1.0..
Preprocessing library for p-1.0..
Building library for p-1.0..
Configuring executable 'q' for q-0.1.0.0..
Preprocessing executable 'q' for q-0.1.0.0..
Building executable 'q' for q-0.1.0.0..