* using log directory ‘/data/blackswan/ripley/R/packages/tests-devel/slopes.Rcheck’
* using R Under development (unstable) (2026-01-31 r89365)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    gcc (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
    GNU Fortran (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
* running under: Fedora Linux 40 (Workstation Edition)
* using session charset: UTF-8
* checking for file ‘slopes/DESCRIPTION’ ... OK
* this is package ‘slopes’ version ‘1.0.1’
* 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 ‘slopes’ can be installed ... OK
* checking package directory ... OK
* checking ‘build’ 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 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 ... 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 contents of ‘data’ directory ... OK
* checking data for non-ASCII characters ... OK
* checking LazyData ... OK
* checking data for ASCII and uncompressed saves ... OK
* checking installed files from ‘inst/doc’ ... OK
* checking files in ‘vignettes’ ... OK
* checking examples ... OK
* checking examples with --run-donttest ... ERROR
Running examples in ‘slopes-Ex.R’ failed
The error most likely occurred in:

> ### Name: elevation_add
> ### Title: Take a linestring and add a third (z) dimension to its
> ###   coordinates
> ### Aliases: elevation_add
> 
> ### ** Examples
> 
> library(sf)
Linking to GEOS 3.12.2, GDAL 3.8.5, PROJ 9.3.1; sf_use_s2() is TRUE
> routes = lisbon_road_network[204, ]
> dem = dem_lisbon_raster
> (r3d = elevation_add(routes, dem))
Simple feature collection with 1 feature and 7 fields
Geometry type: LINESTRING
Dimension:     XYZ
Bounding box:  xmin: -87080.48 ymin: -105629.6 xmax: -87056.99 ymax: -105506.3
z_range:       zmin: 86.49414 zmax: 92.31126
Projected CRS: ETRS89 / Portugal TM06
    OBJECTID    Z_Min    Z_Max   Z_Mean Min_Slope Max_Slope Avg_Slope
204     2997 86.49414 92.31126 89.91172 0.3340225  31.96123  7.487269
                              geom
204 LINESTRING Z (-87064.34 -10...
> library(sf)
> st_z_range(routes)
NULL
> st_z_range(r3d)
    zmin     zmax 
86.49414 92.31126 
> plot(st_coordinates(r3d)[, 3])
> plot_slope(r3d)
> ## No test: 
> # Get elevation data (requires internet connection and API key):
> r3d_get = elevation_add(cyclestreets_route)
Loading required namespace: ceramic
Error: data source could not be processed with GDALWarp api
Execution halted
* checking for unstated dependencies in ‘tests’ ... OK
* checking tests ...
  Running ‘testthat.R’
 OK
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes ... OK
* checking re-building of vignette outputs ... [33s/36s] OK
* checking PDF version of manual ... OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* checking for new files in some other directories ... OK
* DONE

Status: 1 ERROR
See
  ‘/data/blackswan/ripley/R/packages/tests-devel/slopes.Rcheck/00check.log’
for details.

Command exited with non-zero status 1
Time 2:14.16, 97.84 + 31.75