=> "/opt/pkg/bin/bmake" ["-C", "/data/jenkins/workspace/pkgsrc-upstream-trunk/games/gnuchess-book", "stage-install", "BATCH=1", "DEPENDS_TARGET=/nonexistent"]
===> Installing for gnuchess-book-1.02nb1
=> Generating pre-install file lists
=> Creating installation directories
/opt/pkg/bin/bsdinstall -c -o pbuild -g pbuild -m 644 /tmp/work/games/gnuchess-book/work/book.bin /tmp/work/games/gnuchess-book/work/.destdir/opt/pkg/lib/gnuchess
bsdinstall: /tmp/work/games/gnuchess-book/work/book.bin: stat: No such file or directory
*** Error code 1

Stop.
bmake[1]: stopped making "stage-install" in /data/jenkins/workspace/pkgsrc-upstream-trunk/games/gnuchess-book
*** Error code 1

Stop.
bmake: stopped making "stage-install" in /data/jenkins/workspace/pkgsrc-upstream-trunk/games/gnuchess-book