IndexMap compilation fails "expected 3 type arguments"

[PeterGrace]

Hi, this is a weird issue that I stumbled upon that is roughly similar to #144 but I have some new information that may or may not be relevant.

   Compiling h2 v0.2.6
   Compiling futures v0.3.5
error[E0107]: wrong number of type arguments: expected 3, found 2
  --> /root/.cargo/registry/src/github.com-1ecc6299db9ec823/h2-0.2.6/src/proto/streams/store.rs:15:10
   |
15 |     ids: IndexMap<StreamId, SlabIndex>,
   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 3 type arguments

error: aborting due to previous error

For more information about this error, try `rustc --explain E0107`.
error: could not compile `h2`.

What I found about this error, I found in an unrelated software tool's repository, issue here.

The root issue I am having is that I am building from an nfs mount that does not support extended file attributes, and so as a result the build of IndexMap is failing with the following:

rror: could not copy "/workspace/herald/target/debug/build/indexmap-62ff17e61db67c74/out/probe0.probe0.3a1fbbbh-cgu.0.rcgu.ll" to "/workspace/herald/target/debug/build/indexmap-62ff17e61db67c74/out/probe0.ll": Operation not supported (os error 95)

error: aborting due to previous error

error: could not copy "/workspace/herald/target/debug/build/indexmap-62ff17e61db67c74/out/probe1.probe1.3a1fbbbh-cgu.0.rcgu.ll" to "/workspace/herald/target/debug/build/indexmap-62ff17e61db67c74/out/probe1.ll": Operation not supported (os error 95)

error: aborting due to previous error

warning: autocfg could not probe for `std`
error: could not copy "/workspace/herald/target/debug/build/indexmap-62ff17e61db67c74/out/probe2.probe2.3a1fbbbh-cgu.0.rcgu.ll" to "/workspace/herald/target/debug/build/indexmap-62ff17e61db67c74/out/probe2.ll": Operation not supported (os error 95)

error: aborting due to previous error

From the issue #144 it sounds like that problem originated in autocfg but I'm not certain if this is the same situation here, as the other 260 includes I have for my package compiled without incident. I'm curious if there might be some part of IndexMap's compilation that might be prompting this attempt to read extended attributes and if possible, is there a way to skip that?

[cuviper]

I think it is indeed the same as #144 with autocfg output, but I don't know how to improve that situation. If you can use a local target path as suggested there, things will probably be smoother.

To avoid it altogether, we should probably go ahead with #145 that will let you force-enable "std" support.

[nbrr]

I note that #145 has been merged. How do I make a dependency to use the std feature? I'm compiling something to wasm with yew as a dependency. Yew does have indexmap as a dependency but other crates it also seem to have it.

[cuviper]

@nbrr You can add your own dependency with the feature enabled, and this will affect the entire dependency graph:

[dependencies]
indexmap = { version = "1.5.2", features = ["std"] }