Trait is not implemented | Rust Programming Language Community | Page 1

tawny bay Aug 15, 2025, 1:00 PM

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I am trying to test cli commands in my code but I get the error "trait pointeesized is not implemented for OsStr".

I understand this has something to do with what I'm passing in not having this trait implemented but I'm confused as this the example code in the std::process::Command documentation.

sleek robin Aug 15, 2025, 1:04 PM

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tawny bay I am trying to test cli commands in my code but I get the error "trait pointeesi...

could you share the full error as printed by cargo check?

tawny bay Aug 15, 2025, 1:07 PM

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Ok. so now that you mention that I realized you can build it. So it might have something to do with my IDE.

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It built correctly.

sleek robin Aug 15, 2025, 1:10 PM

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well that's odd. are you using rustrover? if so make sure that it's set to the right rust toolchain in the rust settings and that you've got the right target platform selected in the bottom right corner of the main window

tawny bay Aug 15, 2025, 1:10 PM

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sleek robin well that's odd. are you using rustrover? if so make sure that it's set to the r...

exactly what I'm looking at right now

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and yes I'm using rover

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I'm using version 1.8.9 and the x86 architecture for windows, so that looks correct.

sleek robin Aug 15, 2025, 1:13 PM

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try reindexing...?

tawny bay Aug 15, 2025, 1:16 PM

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can you explain what you mean?

sleek robin Aug 15, 2025, 1:19 PM

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file > invalidate caches, although maybe try the "repair ide" option in the file menu first

tawny bay Aug 15, 2025, 1:21 PM

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still the same issue

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The only thing I see on pointeesized is that it's a nightly API. but apart from that I'm not sure

sleek robin Aug 15, 2025, 1:24 PM

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yeah no i don't see any reason that you should be getting these errors

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does it build within rustrover as well, if you click the run button?

tawny bay Aug 15, 2025, 1:26 PM

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yup

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the only things I get are my unused variables popping up

sleek robin Aug 15, 2025, 1:27 PM

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if you press ctrl+b/cmd+b to go to the definition of Command::new, where do you end up?

tawny bay Aug 15, 2025, 1:28 PM

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sleek robin Aug 15, 2025, 1:29 PM

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yup that's correct

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is your crate attached correctly in the cargo tab?

tawny bay Aug 15, 2025, 1:32 PM

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sleek robin Aug 15, 2025, 1:35 PM

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there should be a "cargo" tab, by default i think it's one of the tabs on the sidebar on the right side

tawny bay Aug 15, 2025, 1:36 PM

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?

sleek robin Aug 15, 2025, 1:36 PM

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yeah that one, is that your only crate?

tawny bay Aug 15, 2025, 1:36 PM

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yup

sleek robin Aug 15, 2025, 1:37 PM

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in settings > languages & frameworks > rust, what's the "standard library" field set to?

tawny bay Aug 15, 2025, 1:39 PM

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sleek robin Aug 15, 2025, 1:39 PM

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welp

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i am officially out of ideas ferrisMelt

tawny bay Aug 15, 2025, 1:40 PM

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No worries. It's definitely something with the IDE incorrectly flagging. I'll keep looking

#Trait is not implemented