freebsd32 test failures

[dhuseby]

thread '<unnamed>' panicked at 'assertion failed: `(left == right)` (left: `140737488355328`, right: `3`)', ../src/libstd/fs.rs:2036
test fs::tests::open_flavors ... FAILED
thread '<unnamed>' panicked at 'assertion failed: `(left == right)` (left: `140737488355328`, right: `3`)', ../src/libstd/fs.rs:1959
test fs::tests::truncate_works ... FAILED
thread '<unnamed>' panicked at 'assertion failed: `(left == right)` (left: `200`, right: `0`)', ../src/libstd/fs.rs:2065
test fs::tests::utime ... FAILED

these look to be caused by incorrectly defined stat struct members.