Migrate some rust problems to rust-0.6
Gambit scheme 1-24
Guile scheme 1-24
Use /usr/bin/guile instead of /usr/local/bin

The lisp portage overlay contains a newer version of guile.
Guile scheme 25-32
F# 1-25
F# 26-29
F# 30-34
FSharp #60

Note that this solution provokes a bug in Mono 3.2.0.  The run.sh
script disables the inliner to work around this.