data.land examples fail

[infotroph]

Describe the bug
As mentioned in #1949: package check fails while trying to run examples. Putting it here to have an issue number to reference.

To Reproduce

$ make .check/modules/data.land
Rscript scripts/check_with_errors.R modules/data.land
log_level = NA
die_level = NA
Updating PEcAn.data.land documentation
Loading PEcAn.data.land
Loading required package: PEcAn.DB
Loading required package: PEcAn.utils

Attaching package: ‘PEcAn.utils’

The following object is masked from ‘package:utils’:

    download.file

Loading required package: dbplyr
Warning: @examples [DataONE_doi_download.R#12]: requires a value
Warning: @examples [DataONE_doi_download.R#31]: requires a value
Warning: @examples [DataONE_doi_download.R#62]: requires a value
Warning: @examples [DataONE_doi_download.R#96]: requires a value
Warning: @return [extract_soil_nc.R#9]: requires a value
Warning: @return [extract_soil_nc.R#109]: requires a value
Warning: @examples [match_species_id_OLD.R#26]: requires a value
Warning: @examples [soil_process.R#12]: requires a value
Warning: @return [soil_utils.R#228]: requires a value
Warning: @return [soil_utils.R#304]: requires a value
Warning: @examples [soil_utils.R#307]: requires a value
checking examples ... ERROR
Running examples in ‘PEcAn.data.land-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: match_species_id
> ### Title: Match BETY species ID.
> ### Aliases: match_species_id match_species_id
> 
> ### ** Examples
> 
> bety <- dplyr::src_postgres(dbname = 'bety',
+                        user = 'bety',
+                        password = 'bety',
+                        host = 'localhost')
> input_codes <- c('ACRU', 'PIMA', 'TSCA')
> format_name <- 'usda'
> match_species_id(input_codes = input_codes,
+                  format_name = format_name,
+                  bety = bety)
Warning: package ‘dplyr’ was built under R version 3.4.4

Attaching package: ‘dplyr’

The following objects are masked from ‘package:dbplyr’:

    ident, sql

The following objects are masked from ‘package:stats’:

    filter, lag

The following objects are masked from ‘package:base’:

    intersect, setdiff, setequal, union

Loading required package: R.oo
Loading required package: R.methodsS3
R.methodsS3 v1.7.1 (2016-02-15) successfully loaded. See ?R.methodsS3 for help.
R.oo v1.21.0 (2016-10-30) successfully loaded. See ?R.oo for help.

Attaching package: ‘R.oo’

The following objects are masked from ‘package:methods’:

    getClasses, getMethods

The following objects are masked from ‘package:base’:

    attach, detach, gc, load, save

R.utils v2.6.0 (2017-11-04) successfully loaded. See ?R.utils for help.

Attaching package: ‘R.utils’

The following object is masked from ‘package:utils’:

    timestamp

The following objects are masked from ‘package:base’:

    cat, commandArgs, getOption, inherits, isOpen, parse, warnings

Error in tbl_vars(y) : object 'obs' not found
Calls: match_species_id ... semi_join -> semi_join.tbl_df -> check_valid_names -> tbl_vars
Execution halted 
Error: 1 errors found in modules/data.land. See above for details
Execution halted
make: *** [.check/modules/data.land] Error 1

[infotroph]

Error above was resolved at some point, but checking examples still fails because of #2043. Not closing this until that's resolved.