zordoz: error running Shallow

[bennn]

Trouble with modern TR and zordoz's base libraries:

$ racket --version
Welcome to Racket v8.8.0.7 [cs].
$ cd zordoz/shallow
$ racket main.rkt
any-wrap/c: contract violation
  expected: acyclic value
  given: #0='#s((closure expr 0 form 0 zo 0) #s((lam expr 0 form 0 zo 0) #(for-loop #<path:/home/ben/code/blame-trail/rds/rational-deep-shallow/code/gtp-bench/zordoz/cfg/zo-find.rkt> 92 21 3289 129 #f) (preserves-marks single-result) 2 (val val) #f #() () #f 19 ...