move errno -> IoError converter into std, bubble up OSRng errors Also adds a general errno -> `~str` converter to `std::os`, and makes the failure messages for the things using `OSRng` (e.g. (transitively) the task-local RNG, meaning hashmap initialisation failures aren't such a black box). |
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| .. | ||
| mod.rs | ||
| num.rs | ||
| parse.rs | ||
| rt.rs | ||