Use fetch instead of errormonitor

contrib/generate_precompile.jl

@@ -308,8 +308,8 @@ function generate_precompile_statements()
  end
  close(statements_step1)
  print_state("step1" => "F,$n_step1")
+ return :ok
  end
- #errormonitor(step1)
  !PARALLEL_PRECOMPILATION && wait(step1)
 
  step2 = @async mktemp() do precompile_file, precompile_file_h
@@ -395,6 +395,7 @@ function generate_precompile_statements()
  end
  close(statements_step2)
  print_state("step2" => "F,$n_step2")
+ return :ok
  end
  !PARALLEL_PRECOMPILATION && wait(step2)
 
@@ -456,10 +457,8 @@ function generate_precompile_statements()
  n_succeeded > 1200 || @warn "Only $n_succeeded precompile statements"
  end
 
- wait(step1)
- istaskfailed(step1) && throw("Step 1 of collecting precompiles failed.")
- wait(step2)
- istaskfailed(step2) && throw("Step 2 of collecting precompiles failed.")
+ fetch(step1) == :ok || throw("Step 1 of collecting precompiles failed.")
+ fetch(step2) == :ok || throw("Step 2 of collecting precompiles failed.")
 
  tot_time = time_ns() - start_time
  println("Precompilation complete. Summary:")