• using R Under development (unstable) (2026-07-23 r90295)
• using platform: x86_64-pc-linux-gnu
• R was compiled by     gcc-16 (Debian 16.1.0-2) 16.1.0     GNU Fortran (Debian 16.1.0-2) 16.1.0
• running under: Debian GNU/Linux forky/sid
• using session charset: UTF-8 * current time: 2026-07-24 16:05:34 UTC
• checking for file ‘mlr3learners/DESCRIPTION’ ... OK
• this is package ‘mlr3learners’ version ‘0.15.0’
• package encoding: UTF-8
• checking CRAN incoming feasibility ... [2s/3s] OK
• checking package namespace information ... OK
• checking package dependencies ... OK
• checking if this is a source package ... OK
• checking if there is a namespace ... OK
• checking for executable files ... OK
• checking for hidden files and directories ... OK
• checking for portable file names ... OK
• checking for sufficient/correct file permissions ... OK
• checking serialization versions ... OK
• checking whether package ‘mlr3learners’ can be installed ... OK See the install log for details.
• used C compiler: ‘gcc-16 (Debian 16.1.0-2) 16.1.0’
• checking package directory ... OK
• checking for future file timestamps ... OK
• checking DESCRIPTION meta-information ... OK
• checking top-level files ... OK
• checking for left-over files ... OK
• checking index information ... OK
• checking package subdirectories ... OK
• checking code files for non-ASCII characters ... OK
• checking R files for syntax errors ... OK
• checking whether the package can be loaded ... [1s/1s] OK
• checking whether the package can be loaded with stated dependencies ... [1s/1s] OK
• checking whether the package can be unloaded cleanly ... [1s/1s] OK
• checking whether the namespace can be loaded with stated dependencies ... [1s/1s] OK
• checking whether the namespace can be unloaded cleanly ... [1s/1s] OK
• checking loading without being on the library search path ... [1s/1s] OK
• checking whether startup messages can be suppressed ... [1s/1s] OK
• checking use of S3 registration ... OK
• checking dependencies in R code ... OK
• checking S3 generic/method consistency ... OK
• checking replacement functions ... OK
• checking foreign function calls ... OK
• checking R code for possible problems ... [17s/26s] OK
• checking Rd files ... [1s/2s] OK
• checking Rd metadata ... OK
• checking Rd line widths ... OK
• checking Rd cross-references ... OK
• checking for missing documentation entries ... OK
• checking for code/documentation mismatches ... OK
• checking Rd \usage sections ... OK
• checking Rd contents ... OK
• checking for unstated dependencies in examples ... OK
• checking line endings in C/C++/Fortran sources/headers ... OK
• checking pragmas in C/C++ headers and code ... OK
• checking compilation flags used ... OK
• checking compiled code ... OK
• checking examples ... [9s/14s] OK
• checking for unstated dependencies in ‘tests’ ... OK
• checking tests ... [85s/145s] ERROR   Running ‘testthat.R’ [85s/144s] Running the tests in ‘tests/testthat.R’ failed. Complete output:   > if (requireNamespace("testthat", quietly = TRUE)) {   + library("testthat")   + library("mlr3learners")   + test_check("mlr3learners")   + }   Loading required package: mlr3   Saving _problems/test_classif_ranger-86.R   Saving _problems/test_classif_ranger-102.R   Saving _problems/test_classif_svm-16.R   Saving _problems/test_regr_ranger-64.R   Saving _problems/test_regr_svm-24.R   [ FAIL 5 | WARN 5 | SKIP 4 | PASS 649 ]      ══ Skipped tests (4) ═══════════════════════════════════════════════════════════   • On CRAN (4): 'test_classif_nnet.R:2:1', 'test_classif_xgboost.R:2:1',     'test_regr_nnet.R:2:1', 'test_regr_xgboost.R:2:1'      ══ Failed tests ════════════════════════════════════════════════════════════════   ── Error ('test_classif_ranger.R:86:3'): default_values ────────────────────────   Error in `UseMethod("as_data_backend")`: no applicable method for 'as_data_backend' applied to an object of class "NULL"   Backtrace:       ▆    1. └─mlr3::tsk("pima") at test_classif_ranger.R:86:3    2. └─mlr3misc::dictionary_sugar_get(dict = mlr_tasks, .key, ...)    3. └─mlr3misc:::dictionary_get(dict, .key, .dicts_suggest = .dicts_suggest)    4. └─mlr3misc:::dictionary_initialize_item(key, obj, dots)    5. ├─base::do.call(constructor, cargs)    6. └─mlr3 (local) `<fn>`()    7. └─mlr3::as_data_backend(load_dataset("PimaIndiansDiabetes2", "mlbench"))   ── Error ('test_classif_ranger.R:102:3'): oob_error available without stored model ──   Error in `UseMethod("as_data_backend")`: no applicable method for 'as_data_backend' applied to an object of class "NULL"   Backtrace:       ▆    1. └─mlr3::tsk("pima") at test_classif_ranger.R:102:3    2. └─mlr3misc::dictionary_sugar_get(dict = mlr_tasks, .key, ...)    3. └─mlr3misc:::dictionary_get(dict, .key, .dicts_suggest = .dicts_suggest)    4. └─mlr3misc:::dictionary_initialize_item(key, obj, dots)    5. ├─base::do.call(constructor, cargs)    6. └─mlr3 (local) `<fn>`()    7. └─mlr3::as_data_backend(load_dataset("PimaIndiansDiabetes2", "mlbench"))   ── Error ('test_classif_svm.R:16:3'): default_values ───────────────────────────   Error in `UseMethod("as_data_backend")`: no applicable method for 'as_data_backend' applied to an object of class "NULL"   Backtrace:       ▆    1. └─mlr3::tsk("pima") at test_classif_svm.R:16:3    2. └─mlr3misc::dictionary_sugar_get(dict = mlr_tasks, .key, ...)    3. └─mlr3misc:::dictionary_get(dict, .key, .dicts_suggest = .dicts_suggest)    4. └─mlr3misc:::dictionary_initialize_item(key, obj, dots)    5. ├─base::do.call(constructor, cargs)    6. └─mlr3 (local) `<fn>`()    7. └─mlr3::as_data_backend(load_dataset("PimaIndiansDiabetes2", "mlbench"))   ── Error ('test_regr_ranger.R:64:3'): default_values ───────────────────────────   Error in `UseMethod("as_data_backend")`: no applicable method for 'as_data_backend' applied to an object of class "NULL"   Backtrace:       ▆    1. └─mlr3::tsk("pima") at test_regr_ranger.R:64:3    2. └─mlr3misc::dictionary_sugar_get(dict = mlr_tasks, .key, ...)    3. └─mlr3misc:::dictionary_get(dict, .key, .dicts_suggest = .dicts_suggest)    4. └─mlr3misc:::dictionary_initialize_item(key, obj, dots)    5. ├─base::do.call(constructor, cargs)    6. └─mlr3 (local) `<fn>`()    7. └─mlr3::as_data_backend(load_dataset("PimaIndiansDiabetes2", "mlbench"))   ── Error ('test_regr_svm.R:24:3'): default_values ──────────────────────────────   Error in `UseMethod("as_data_backend")`: no applicable method for 'as_data_backend' applied to an object of class "NULL"   Backtrace:       ▆    1. └─mlr3::tsk("pima") at test_regr_svm.R:24:3    2. └─mlr3misc::dictionary_sugar_get(dict = mlr_tasks, .key, ...)    3. └─mlr3misc:::dictionary_get(dict, .key, .dicts_suggest = .dicts_suggest)    4. └─mlr3misc:::dictionary_initialize_item(key, obj, dots)    5. ├─base::do.call(constructor, cargs)    6. └─mlr3 (local) `<fn>`()    7. └─mlr3::as_data_backend(load_dataset("PimaIndiansDiabetes2", "mlbench"))      [ FAIL 5 | WARN 5 | SKIP 4 | PASS 649 ]   Error:   ! Test failures.   Execution halted
• checking PDF version of manual ... [7s/9s] OK
• checking HTML version of manual ... [4s/4s] OK
• checking for non-standard things in the check directory ... OK
• DONE

Status: 1 ERROR