feat: make sure compiler can be shared between threads #418
ci.yml
on: pull_request
  
    
      Rustfmt
    
          
              16s
          
      
    
      book
    
          
              8s
          
      
      
        Matrix: unit-tests
      
    
    Annotations
3 errors
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                          Nightly - ubuntu-latest - 16.0 - rayon cranelift
                        
                      
                       Process completed with exit code 101. | 
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                          Beta - ubuntu-latest - 16.0 - rayon cranelift
                        
                      
                       Process completed with exit code 101. | 
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                          Tests - ubuntu-latest - 18.1 - cranelift
                        
                      
                       Process completed with exit code 101. |