• using R Under development (unstable) (2026-05-15 r90061)
• using platform: x86_64-pc-linux-gnu
• R was compiled by     clang version 22.1.5 (https://github.com/llvm/llvm-project 5ea218a153f4d2f815b8244eab3e4b4ba5e00e6c)     flang version 22.1.5 (https://github.com/llvm/llvm-project 5ea218a153f4d2f815b8244eab3e4b4ba5e00e6c)
• running under: Fedora Linux 42 (Workstation Edition)
• using session charset: UTF-8 * current time: 2026-05-16 03:33:03 UTC
• using option ‘--no-stop-on-test-error’
• checking for file ‘mlr3fselect/DESCRIPTION’ ... OK
• this is package ‘mlr3fselect’ version ‘1.5.1’
• package encoding: UTF-8
• 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 whether package ‘mlr3fselect’ can be installed ... [25s/32s] OK See the install log for details.
• checking installed package size ... OK
• checking package directory ... 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 ... OK
• checking whether the package can be loaded with stated dependencies ... OK
• checking whether the package can be unloaded cleanly ... OK
• checking whether the namespace can be loaded with stated dependencies ... OK
• checking whether the namespace can be unloaded cleanly ... OK
• checking loading without being on the library search path ... OK
• checking whether startup messages can be suppressed ... 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 ... [56s/72s] OK
• checking Rd files ... 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 examples ... [29s/35s] OK
• checking for unstated dependencies in ‘tests’ ... OK
• checking tests ... [11m/20m] ERROR   Running ‘testthat.R’ [11m/20m] Running the tests in ‘tests/testthat.R’ failed. Complete output:   > if (requireNamespace("testthat", quietly = TRUE)) {   + library(testthat)   + library(checkmate)   + library(mlr3fselect)   + test_check("mlr3fselect")   + }   Loading required package: mlr3      Attaching package: 'data.table'      The following object is masked from 'package:base':          %notin%      Saving _problems/test_embedded_ensemble_fselect-62.R   Saving _problems/test_ensemble_fselect-92.R   Saving _problems/test_ensemble_fselect-167.R   [ FAIL 3 | WARN 0 | SKIP 18 | PASS 5780 ]      ══ Skipped tests (18) ══════════════════════════════════════════════════════════   • On CRAN (18): 'test_ArchiveAsyncFSelect.R:2:1',     'test_ArchiveAsyncFSelectFrozen.R:2:1', 'test_AutoFSelector.R:2:3',     'test_AutoFSelector.R:29:3', 'test_AutoFSelector.R:64:3',     'test_AutoFSelector.R:220:3', 'test_CallbackAsyncFSelect.R:2:1',     'test_FSelectInstanceAsyncMultiCrit.R:2:1',     'test_FSelectInstanceAsyncSingleCrit.R:2:1',     'test_FSelectorAsyncDesignPoints.R:2:1',     'test_FSelectorAsyncExhaustiveSearch.R:2:1',     'test_FSelectorAsyncRandomSearch.R:2:1', 'test_ObjectiveFSelectAsync.R:97:3',     'test_ObjectiveFSelectAsync.R:168:3', 'test_auto_fselector.R:25:3',     'test_auto_fselector.R:49:3', 'test_fsi_async.R:2:1',     'test_mlr_callbacks.R:109:3'      ══ Failed tests ════════════════════════════════════════════════════════════════   ── Failure ('test_embedded_ensemble_fselect.R:62:3'): embedded efs works ───────   Check on 'feature_ranking' failed: Must be a data.table, not data.frame   Backtrace:       ▆    1. └─checkmate::expect_data_table(feature_ranking, nrows = length(task$feature_names)) at test_embedded_ensemble_fselect.R:62:3    2. └─checkmate::makeExpectation(x, res, info, label)   ── Failure ('test_ensemble_fselect.R:92:3'): efs works ─────────────────────────   Check on 'feature_ranking' failed: Must be a data.table, not data.frame   Backtrace:       ▆    1. └─checkmate::expect_data_table(feature_ranking, nrows = length(task$feature_names)) at test_ensemble_fselect.R:92:3    2. └─checkmate::makeExpectation(x, res, info, label)   ── Failure ('test_ensemble_fselect.R:167:3'): efs works with rfe ───────────────   Check on 'feature_ranking' failed: Must be a data.table, not data.frame   Backtrace:       ▆    1. └─checkmate::expect_data_table(feature_ranking, nrows = length(task$feature_names)) at test_ensemble_fselect.R:167:3    2. └─checkmate::makeExpectation(x, res, info, label)      [ FAIL 3 | WARN 0 | SKIP 18 | PASS 5780 ]   Error:   ! Test failures.   Execution halted
• checking PDF version of manual ... [15s/16s] OK
• checking HTML version of manual ... [22s/22s] OK
• checking for non-standard things in the check directory ... OK
• checking for detritus in the temp directory ... OK
• DONE

Status: 1 ERROR