R version 4.4.0 RC (2024-04-16 r86468 ucrt) -- "Puppy Cup"
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Platform: x86_64-w64-mingw32/x64

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> if (requireNamespace("testthat", quietly = TRUE)) {
+   library("checkmate")
+   library("testthat")
+   library("mlr3")
+   test_check("mlr3")
+ }
Loading required namespace: Matrix
ERROR [20:32:12.288] [mlr3] predict: Error from classif.debug->predict()
ERROR [20:32:28.723] [mlr3] train: Error from classif.debug->train()
ERROR [20:32:28.753] [mlr3] train: Error from classif.debug->train()
ERROR [20:32:28.775] [mlr3] train: Error from classif.debug->train()
ERROR [20:32:28.873] [mlr3] train: Error from classif.debug->train()
ERROR [20:32:28.908] [mlr3] train: Error from classif.debug->train()
ERROR [20:32:28.935] [mlr3] train: Error from classif.debug->train()
ERROR [20:32:29.081] [mlr3] train: Error from classif.debug->train()
ERROR [20:32:29.105] [mlr3] train: Error from classif.debug->train()
ERROR [20:32:29.129] [mlr3] train: Error from classif.debug->train()
WARN  [20:32:43.253] [mlr3] train: Warning from classif.debug->train()
ERROR [20:32:43.265] [mlr3] train: Error from classif.debug->train()
WARN  [20:32:43.288] [mlr3] predict: Warning from classif.debug->predict()
ERROR [20:32:43.315] [mlr3] predict: Error from classif.debug->predict()
WARN  [20:32:43.401] [mlr3] train: Warning from classif.debug->train()
WARN  [20:32:43.418] [mlr3] train: Warning from classif.debug->train()
WARN  [20:32:43.434] [mlr3] train: Warning from classif.debug->train()
WARN  [20:32:43.491] [mlr3] train: Warning from classif.debug->train()
ERROR [20:32:43.496] [mlr3] predict: Error from classif.debug->predict()
WARN  [20:32:43.508] [mlr3] train: Warning from classif.debug->train()
ERROR [20:32:43.513] [mlr3] predict: Error from classif.debug->predict()
WARN  [20:32:43.525] [mlr3] train: Warning from classif.debug->train()
ERROR [20:32:43.530] [mlr3] predict: Error from classif.debug->predict()
WARN  [20:32:43.679] [mlr3] train: Warning from classif.debug->train()
WARN  [20:32:43.697] [mlr3] train: Warning from classif.debug->train()
WARN  [20:32:43.713] [mlr3] train: Warning from classif.debug->train()
WARN  [20:32:43.784] [mlr3] train: Warning from classif.debug->train()
ERROR [20:32:43.789] [mlr3] predict: Error from classif.debug->predict()
WARN  [20:32:43.801] [mlr3] train: Warning from classif.debug->train()
ERROR [20:32:43.806] [mlr3] predict: Error from classif.debug->predict()
WARN  [20:32:43.818] [mlr3] train: Warning from classif.debug->train()
ERROR [20:32:43.823] [mlr3] predict: Error from classif.debug->predict()
ERROR [20:32:44.520] [mlr3] train: Error from classif.debug->train()
ERROR [20:32:44.592] [mlr3] predict: Error from classif.debug->predict()
ERROR [20:32:44.678] [mlr3] predict: Error from classif.debug->predict()
ERROR [20:32:44.696] [mlr3] predict: Error from classif.debug->predict()
ERROR [20:32:44.714] [mlr3] predict: Error from classif.debug->predict()
ERROR [20:33:23.258] [mlr3] train: Error from classif.debug->train()
[ FAIL 0 | WARN 0 | SKIP 4 | PASS 13164 ]

══ Skipped tests (4) ═══════════════════════════════════════════════════════════
• On CRAN (2): 'test_Measure.R:128:3', 'test_parallel.R:91:3'
• On Windows (1): 'test_parallel.R:62:3'
• distr6 cannot be loaded (1): 'test_PredictionRegr.R:54:3'

[ FAIL 0 | WARN 0 | SKIP 4 | PASS 13164 ]
> 
> proc.time()
   user  system elapsed 
  78.37    5.15  105.81