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README update with mention of nightly version #88

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16 changes: 16 additions & 0 deletions README.md
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Expand Up @@ -8,6 +8,9 @@ To use, first install:
cargo install cargo2junit
```

## How to Get the JUnit XML Format
### When You Have the Nightly Compiler Version

Then, run cargo test either with `RUSTC_BOOTSTRAP=1` or with `+beta` and convert:
```
RUSTC_BOOTSTRAP=1 cargo test -- -Z unstable-options --format json --report-time | cargo2junit > results.xml
Expand All @@ -19,6 +22,19 @@ RUSTC_BOOTSTRAP=1 cargo test -- -Z unstable-options --format json --report-time
cat results.json | cargo2junit > results.xml
```

### When You Do Not Have the Nightly Compiler Version
If you do not have the nightly compiler release, the -Z option will not work. You can add it using the following:
```
rustup install nightly
```

And when you don't have it selected by default, you can use the +nightly argument:
```
cargo +nightly test -- --format json -Z unstable-options --report-time > test-results.json
cat test-results.json | cargo2junit > test-results.xml
```

## Publishing the XML to Azure Pipelines
Once you have your XML, publish it (e.g. for Azure Pipelines):
```
- task: PublishTestResults@2
Expand Down