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Ask questionstrait objects without an explicit `dyn` are deprecated

I use rustc 1.37.0-nightly and report trait objects without an explicit dyn are deprecated warnings

stepancheg/rust-protobuf

Answer questions jakubadamw

@stepancheg, well, it's released, but the code that gets generated still produces trait objects without an explicit `dyn` are deprecated warnings under Rust >= 1.27. Shouldn't this issue be reopened, then?

I presume that the minimal Rust version required by protoc-rust should go hand in hand with the minimal version the generated code is expected to compile under, correct? Therefore, if the version 2.7 requires Rust 1.27, so should the code it generates, and thereby it can use dyn to eliminate the warnings?

useful!

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