R Under development (unstable) (2026-03-14 r89623 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> library(testthat)
> library(ml)
> 
> test_check("ml")
-- Calibrated ml_model [classification | logistic | Platt scaling]
Saved: D:\temp\2026_03_15_13_15_17_11970\Rtmpuic0fT\file14a1c27573f43.html
Saved: D:\temp\2026_03_15_13_15_17_11970\Rtmpuic0fT\file14a1c24d81ca8.html
Saved: D:\temp\2026_03_15_13_15_17_11970\Rtmpuic0fT\file14a1c7225493b.html
[ FAIL 0 | WARN 1546 | SKIP 49 | PASS 1548 ]

══ Skipped tests (49) ══════════════════════════════════════════════════════════
• Rust backend not available (44): 'test-rust.R:15:3', 'test-rust.R:26:3',
  'test-rust.R:38:3', 'test-rust.R:48:3', 'test-rust.R:63:3',
  'test-rust.R:72:3', 'test-rust.R:81:3', 'test-rust.R:92:3',
  'test-rust.R:102:3', 'test-rust.R:112:3', 'test-rust.R:124:3',
  'test-rust.R:134:3', 'test-rust.R:155:3', 'test-rust.R:164:3',
  'test-rust.R:173:3', 'test-rust.R:184:3', 'test-rust.R:196:3',
  'test-rust.R:214:3', 'test-rust.R:224:3', 'test-rust.R:242:3',
  'test-rust.R:253:3', 'test-rust.R:264:3', 'test-rust.R:277:3',
  'test-rust.R:292:3', 'test-rust.R:310:3', 'test-rust.R:322:3',
  'test-rust.R:333:3', 'test-rust.R:347:3', 'test-rust.R:358:3',
  'test-rust.R:368:3', 'test-rust.R:383:3', 'test-rust.R:395:3',
  'test-rust.R:409:3', 'test-rust.R:425:3', 'test-rust.R:438:3',
  'test-rust.R:447:3', 'test-rust.R:463:3', 'test-rust.R:475:3',
  'test-rust.R:487:3', 'test-rust.R:498:3', 'test-rust.R:514:3',
  'test-rust.R:526:3', 'test-rust.R:538:3', 'test-rust.R:550:3'
• empty test (2): 'test-parity-w3.R:163:1', 'test-screen.R:16:1'
• gradient_boosting not available: algorithm='gradient_boosting'/'histgradient'
  requires the Rust backend. (2): 'test-workflow.R:195:5',
  'test-workflow.R:391:7'
• logistic is clf-only — use linear for regression; tested separately (1):
  'test-predict.R:16:3'

[ FAIL 0 | WARN 1546 | SKIP 49 | PASS 1548 ]
> 
> proc.time()
   user  system elapsed 
  44.65    4.79   48.42