Commit 72e28dffcd introduced a build
regression on Linux when resolving the in-tree gstreamer libs.
The error:
------------------------------------
$ ./mach build --release
...
The details of the failure are as follows:
AttributeError: 'function' object has no attribute 'endswith'
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/build_commands.py", line 237, in build
env = self.build_env(target=target, is_build=True)
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/command_base.py", line 646, in build_env
if self.needs_gstreamer_env(target or host_triple(), env):
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/command_base.py", line 574, in needs_gstreamer_env
if path.isdir(gstreamer_root(effective_target, env, self.get_top_dir)):
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/command_base.py", line 257, in gstreamer_root
return path.join(topdir, "support", "linux", "gstreamer", "gst")
File "/usr/lib/python2.7/posixpath.py", line 70, in join
elif path == '' or path.endswith('/'):
------------------------------------
The problem is that get_top_dir is being passed as a function to
gstreamer_root in a couple of places instead of being invoked first.
updated rustup requirement
<!-- Please describe your changes on the following line: -->
Rustup changed their argparsing, which resulted in `./mach test-unit --nocapture` not working. Servo now requires a higher rustup version to ensure that mach commands work
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