Can't pipe byref into function, but can apply it directly

[marklam]

Passing a byref argument using the forward-pipe doesn't work, get "error FS0412: A type instantiation involves a byref type. This is not permitted by the rules of Common IL."

Repro steps

open System.Buffers.Binary

module X = 
    let thisIsOK s  = BinaryPrimitives.ReadInt32BigEndian s
    let thisIsNot s = s |> BinaryPrimitives.ReadInt32BigEndian

Expected behavior

The forward-pipe should work the same as directly supplying the parameter to the function

Actual behavior

The compiler complains

Known workarounds

Not using the forward-pipe

Related information

.net standard 2.0
VisualStudio.15.Preview/15.8.0-pre.3.0+27825.0
Visual F# Tools 10.2 for F# 4.5 15.8.0.0. Commit Hash: ac667ab

[TIHan]

This is intended. Because |> is a generic function, the rules state you can't have a byref<_> as a type arg, ex: callSomething<byref<int>>.