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William Brown 2020-04-03 09:07:57 +10:00
parent 94d5eb0276
commit ef89525249
1 changed files with 4 additions and 17 deletions
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README.md
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@ -102,28 +102,15 @@ fn does_not_work_on_miri() {
An exhaustive list of what `miri` does not support is not available, as this could be
an unbounded set with FFI and more. However `miri` will explicitly tell you when it finds
something unsupported with an error:
something unsupported with an error, containing a message such as:
```
error: unsupported operation: can't call foreign function: mach_timebase_info
--> /home/r/.rustup/toolchains/miri/lib/rustlib/src/rust/src/libstd/sys/unix/time.rs:239:13
|
239 | mach_timebase_info(&mut info);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't call foreign function: mach_timebase_info
|
= help: this is likely not a bug in the program; it indicates that the program performed an operation that the interpreter does not support
= note: inside call to `std::sys::unix::time::inner::info` at /home/r/.rustup/toolchains/miri/lib/rustlib/src/rust/src/libstd/sys/unix/time.rs:156:24
= note: inside call to `std::sys::unix::time::inner::Instant::checked_sub_instant` at /home/r/.rustup/toolchains/miri/lib/rustlib/src/rust/src/libstd/time.rs:263:9
note: inside call to `std::time::Instant::duration_since` at tests/run-pass/time.rs:25:20
--> tests/run-pass/time.rs:25:20
|
25 | let diff = now2.duration_since(now1);
| ^^^^^^^^^^^^^^^^^^^^^^^^^
= note: inside call to `main` at /home/r/.rustup/toolchains/miri/lib/rustlib/src/rust/src/libstd/rt.rs:67:34
...
= help: this is likely not a bug in the program; it indicates that the program \
performed an operation that the interpreter does not support
```
If you do not see an error like this, you are able to keep using `miri`!
### Running Miri on CI
To run Miri on CI, make sure that you handle the case where the latest nightly