[Factor-builds] mason on windows-x86-64: build loop error

[<sl...@fa...>]

Fatal error on windows7-64

Launching failed with error:
Win32 error 0x2: The system cannot find the file specified.
Launch descriptor:

T{ process
    { command
        {
            "zip"
            "-r"
            "factor-windows-x86-64-2011-11-11-18-42.zip"
            "factor"
        }
    }
    { environment H{ } }
    { environment-mode +append-environment+ }
    { stdin +closed+ }
    { stdout
        T{ win32-file { disposed t } { handle ALIEN: 1cc } }
    }
    { stderr +stdout+ }
    { group +new-group+ }
    { timeout T{ duration { minute 30 } } }
    { pipe
        T{ pipe
            { in
                T{ win32-file
                    { disposed t }
                    { handle ALIEN: 1d0 }
                }
            }
            { out
                T{ win32-file
                    { disposed t }
                    { handle ALIEN: 1cc }
                }
            }
        }
    }
}
(U) Quotation: [ set-namestack init-catchstack self quot>> call -> stop ]
(O) Word: build-loop
(O) Word: build
(O) Word: release
(O) Word: try-output-process
(O) Word: <process-reader*>
(O) Word: run-detached
(O) Method: M\ windows run-process*
(O) Word: launch-error
(O) Method: M\ object throw
(U) Quotation: [
        OBJ-CURRENT-THREAD special-object error-thread set-global
        continuation -> error-continuation set-global
        [ original-error set-global ] [ rethrow ] bi
    ]