Looks like a minor compiler/optimizer bug in Friday's 5.2.900.1 pre-release.
I haven't yet found a simpler test case, but you can reproduce by
installing a particular PLaneT package as shown below.
The line 1275 it's complaining about is the following, which starts a
procedure definition that is later applied at toplevel in the same module:
(define (charterm-make-keydec keydec-id . keysets)
The demo program for this PLaneT package seems to run correctly despite
these install/compile-time error messages.
Racket 5.2.1 does not give these install/compile-time errors, as is also
shown below.
$ /usr/local/racket-5.2.900.1-20120727/bin/raco planet remove neil
charterm.plt 3 0
[...]
$ /usr/local/racket-5.2.900.1-20120727/bin/racket -p neil/charterm:3:=0
andmap: contract violation
expected: list?
given:
'(#<syntax:/home/user/.racket/planet/300/5.2.900.1/cache/neil/charterm.plt/3/0/charterm.rkt:1275:30
keydec-id> .
#<syntax:/home/user/.racket/planet/300/5.2.900.1/cache/neil/charterm.plt/3/0/charterm.rkt:1275:42
keysets>)
argument position: 2nd
other arguments...:
#<procedure:void>
andmap: contract violation
expected: list?
given:
'(#<syntax:/home/user/.racket/planet/300/5.2.900.1/cache/neil/charterm.plt/3/0/charterm.rkt:1275:30
keydec-id> .
#<syntax:/home/user/.racket/planet/300/5.2.900.1/cache/neil/charterm.plt/3/0/charterm.rkt:1275:42
keysets>)
argument position: 2nd
other arguments...:
#<procedure:void>
raco setup: error: during making for <planet>/neil/charterm.plt/3/0
(CharTerm)
raco setup: andmap: contract violation
raco setup: expected: list?
raco setup: given:
'(#<syntax:/home/user/.racket/planet/300/5.2.900.1/cache/neil/charterm.plt/3/0/charterm.rkt:1275:30
keydec-id> .
#<syntax:/home/user/.racket/planet/300/5.2.900.1/cache/neil/charterm.plt/3/0/charterm.rkt:1275:42
keysets>)
raco setup: argument position: 2nd
raco setup: other arguments...:
raco setup: #<procedure:void>
raco setup: error: during Building docs for
/home/user/.racket/planet/300/5.2.900.1/cache/neil/charterm.plt/3/0/doc.scrbl
raco setup: andmap: contract violation
raco setup: expected: list?
raco setup: given:
'(#<syntax:/home/user/.racket/planet/300/5.2.900.1/cache/neil/charterm.plt/3/0/charterm.rkt:1275:30
keydec-id> .
#<syntax:/home/user/.racket/planet/300/5.2.900.1/cache/neil/charterm.plt/3/0/charterm.rkt:1275:42
keysets>)
raco setup: argument position: 2nd
raco setup: other arguments...:
raco setup: #<procedure:void>
$
$ /usr/local/racket-5.2.1/bin/raco planet remove neil charterm.plt 3 0
[...]
$ /usr/local/racket-5.2.1/bin/racket -p neil/charterm:3:=0
[...no output...]
$
Neil V.
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