[R-pkg-team] Bug#949361: r-cran-ranger: autopkgtest regression on some architectures

[Graham Inggs]

Source: r-cran-ranger
Version: 0.12.1-1
X-Debbugs-CC: debian-ci at lists.debian.org
Severity: serious
User: debian-ci at lists.debian.org
Usertags: regression

Hi Maintainer

Since the upload of r-cran-ranger 0.12.1-1, its own autopkgtests have
been failing [1] on at least arm64, ppc64el and s390x.

I've copied what I hope is the relevant part of the log below.

Regards
Graham

[1] https://ci.debian.net/data/autopkgtest/testing/arm64/r/r-cran-ranger/4034091/log.gz


> library(testthat)
> library(ranger)
>
> test_check("ranger")
── 1. Failure: maxstat corrected impurity importance is positive (on average) (@
mean(rf$variable.importance) is not strictly more than 0. Difference: NaN

Error: testthat unit tests failed
══ testthat results  ═══════════════════════════════════════════════════════════
[ OK: 647 | SKIPPED: 10 | WARNINGS: 0 | FAILED: 1 ]
1. Failure: maxstat corrected impurity importance is positive (on
average) (@test_maxstat.R#41)

Execution halted
autopkgtest [11:39:55]: test run-unit-test: -----------------------]
run-unit-test        FAIL non-zero exit status 1