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@ -44,6 +44,7 @@ LL | let ips: Vec<_> = (0..100_000).map(|_| u32::from(0u32.into())).collect(
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| type must be known at this point
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= note: multiple `impl`s satisfying `u32: From<_>` found in the `core` crate:
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- impl From<Char> for u32;
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- impl From<Ipv4Addr> for u32;
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- impl From<NonZeroU32> for u32;
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- impl From<bool> for u32;
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@ -12,6 +12,7 @@ LL | Ok(Err(123_i32)?)
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= help: the following other types implement trait `From<T>`:
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<u8 as From<bool>>
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<u8 as From<NonZeroU8>>
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<u8 as From<Char>>
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= note: required for `Result<u64, u8>` to implement `FromResidual<Result<Infallible, i32>>`
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error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a function that returns `Result`
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