[R-pkg-team] Bug#954813: r-cran-rlang breaks r-cran-ggplot2 autopkgtest: `out` not identical to `exp`

[Paul Gevers]

Source: r-cran-rlang, r-cran-ggplot2
Control: found -1 r-cran-rlang/0.4.5-1
Control: found -1 r-cran-ggplot2/3.2.1+dfsg-2
Severity: serious
Tags: sid bullseye
X-Debbugs-CC: debian-ci at lists.debian.org
User: debian-ci at lists.debian.org
Usertags: breaks needs-update

Dear maintainer(s),

With a recent upload of r-cran-rlang the autopkgtest of r-cran-ggplot2
fails in testing when that autopkgtest is run with the binary packages
of r-cran-rlang from unstable. It passes when run with only packages
from testing. In tabular form:

                       pass            fail
r-cran-rlang           from testing    0.4.5-1
r-cran-ggplot2         from testing    3.2.1+dfsg-2
all others             from testing    from testing

I copied some of the output at the bottom of this report.

Currently this regression is blocking the migration of r-cran-rlang to
testing [1]. Due to the nature of this issue, I filed this bug report
against both packages. Can you please investigate the situation and
reassign the bug to the right package?

More information about this bug and the reason for filing it can be found on
https://wiki.debian.org/ContinuousIntegration/RegressionEmailInformation

Paul

[1] https://qa.debian.org/excuses.php?package=r-cran-rlang

https://ci.debian.net/data/autopkgtest/testing/amd64/r/r-cran-ggplot2/4633837/log.gz

autopkgtest [21:29:08]: test run-unit-test: [-----------------------
BEGIN TEST testthat.R

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> library(testthat)
> library(ggplot2)
>
> test_check("ggplot2")
── 1. Failure: as_facets_list() coerces lists (@test-facet-.r#40)
─────────────
`out` not identical to `exp`.
Component 3: Attributes: < Component “class”: Lengths (2, 1) differ
(string compare on first 1) >

══ testthat results
═══════════════════════════════════════════════════════════
[ OK: 1072 | SKIPPED: 113 | WARNINGS: 0 | FAILED: 1 ]
1. Failure: as_facets_list() coerces lists (@test-facet-.r#40)

Error: testthat unit tests failed
Execution halted
autopkgtest [21:29:47]: test run-unit-test: -----------------------]

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