I’m getting the following error:

make[2]: Entering directory `/tmp/nix-build-a2ps-4.14.drv-7/a2ps-4.14/man'
Updating man page fixps.1
Updating man page psmandup.1
Updating man page card.1
/nix/store/vw6j6hcbcg2siv93v66d7i3fswyj116k-bash-4.2/bin/bash: line 3: /missing: No such file or directory
/nix/store/vw6j6hcbcg2siv93v66d7i3fswyj116k-bash-4.2/bin/bash: line 3: /missing: No such file or directory
make[2]: *** [card.1] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [fixps.1] Error 1
Updating man page psset.1
/nix/store/vw6j6hcbcg2siv93v66d7i3fswyj116k-bash-4.2/bin/bash: line 3: /missing: No such file or directory
/nix/store/vw6j6hcbcg2siv93v66d7i3fswyj116k-bash-4.2/bin/bash: line 3: /missing: No such file or directory
make[2]: *** [psset.1] Error 1
make[2]: *** [psmandup.1] Error 1
make[2]: Leaving directory `/tmp/nix-build-a2ps-4.14.drv-7/a2ps-4.14/man'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/tmp/nix-build-a2ps-4.14.drv-7/a2ps-4.14'
make: *** [all] Error 2
phase `build' failed after 10 seconds
note: keeping build directory `/tmp/nix-build-a2ps-4.14.drv-7'
builder for `/nix/store/4dfd0qglsh76cbfs2a539j38bndkm5zj-a2ps-4.14.drv' failed with exit code 1
@ build-failed /nix/store/4dfd0qglsh76cbfs2a539j38bndkm5zj-a2ps-4.14.drv - 1 builder for `/nix/store/4dfd0qglsh76cbfs2a539j38bndkm5zj-a2ps-4.14.drv' failed with exit code 1
guix build: error: build failed: build of `/nix/store/4dfd0qglsh76cbfs2a539j38bndkm5zj-a2ps-4.14.drv' failed

What’s wrong?

Also, I don’t like the synopsis from Womb, so I used my own.  Is it OK?