adapt try build expected error to new output

[jdroenner]

• I agree to follow the project's code of conduct.
• I added an entry to CHANGES.md if knowledge of this change could be valuable to users.

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it works with current stable beta and nightly on linux

[jdroenner]

r? @lnicola

[lnicola]

😞

bors r+

[bors]

Build succeeded:

• ci ubuntu-20.04
• ci ubuntu-20.04 (--all-features)
• clippy

[lnicola]

See https://github.com/georust/gdal/runs/4691714467?check_suite_focus=true

This also adds 2 minutes to the run time of the --all-features test because it builds the test without --all-features, causing an extra recompile.