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Running the tests in ‘tests/AAAtest-all.R’ failed.
Complete output:
  > if (base::require("testthat", quietly = TRUE)) {
  +     pkg   <- "lme4"
  +     require(pkg, character.only=TRUE, quietly=TRUE)
  +     if(getRversion() < "3.5.0") { withAutoprint <- identity ; prt <- print } else { prt <- identity }
  +     if(Sys.getenv("USER") %in% c("maechler", "bbolker")) withAutoprint({
  +         ## for developers' sake:
  +         lP <- .libPaths() # ---- .libPaths() : ----
  +         prt(lP)
  +         ## ---- Entries in .libPaths()[1] : ----
  +         prt(list.files(lP[1], include.dirs=TRUE))
  +         prt(sessionInfo())
  +         prt(packageDescription("Matrix"))
  +         ## 'lme4' from packageDescription "file" :
  +         prt(attr(packageDescription("lme4"), "file"))
  +     })
  +     test_check(pkg)
  +     ##======== ^^^
  +     print(warnings()) # TODO? catch most of these by expect_warning(..)
  + } else {
  +     cat( "package 'testthat' not available, cannot run unit tests\n" )
  + }
  [ FAIL 1 | WARN 0 | SKIP 1 | PASS 570 ]
  
  ══ Skipped tests (1) ═══════════════════════════════════════════════════════════
  • On CRAN (1): 'test-eval.R:2:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-glmFamily.R:30:21'): inverse link and muEta functions ──────────
  Error in `fam$linkinv(x)`: Argument eta must be a nonempty numeric vector
  Backtrace:
       ▆
    1. └─lme4 (local) tst.lnki(binomial(), etas) at test-glmFamily.R:38:5
    2.   └─base::sapply(frm, function(x) expect_that(fam$linkinv(x), equals(ff$linkInv(x)))) at test-glmFamily.R:30:9
    3.     └─base::lapply(X = X, FUN = FUN, ...)
    4.       └─lme4 (local) FUN(X[[i]], ...)
    5.         ├─testthat::expect_that(fam$linkinv(x), equals(ff$linkInv(x))) at test-glmFamily.R:30:21
    6.         │ └─testthat (local) condition(object)
    7.         │   └─testthat::expect_equal(x, expected, ..., expected.label = label)
    8.         │     └─testthat::quasi_label(enquo(object), label, arg = "object")
    9.         │       └─rlang::eval_bare(expr, quo_get_env(quo))
   10.         └─fam$linkinv(x)
  
  [ FAIL 1 | WARN 0 | SKIP 1 | PASS 570 ]
  Error: Test failures
  Execution halted