Error when building contract - error[E0158]: associated consts cannot be referenced in patterns

[CrommVardek]

Hello,

From the flipper example, when executing cargo +nightly contract build the following error is thrown :

error[E0158]: associated consts cannot be referenced in patterns

    |
9  | /     pub struct Flipper {
10 | |         value: bool,
11 | |     }
   | |_____^

cargo --version returns cargo 1.63.0 (fd9c4297c 2022-07-01)
cargo +nightly -V returns cargo 1.65.0-nightly (082503982 2022-09-13)
rustc --version returns rustc 1.63.0 (4b91a6ea7 2022-08-08)
and cargo contract -V return cargo-contract 1.5.0-unknown-x86_64-unknown-linux-gnu

the issue have been reported multiple times on Substrate.StackExchange (here, here and here )

Although a workaround have been explained https://substrate.stackexchange.com/a/4847/151, to me it's still a bug, and I don't understand why it does not work as it's supposed to?

[kayabaNerve]

This only stopped working in a recent Rust nightly. I'm not sure if Rust nightly tightened, or if Rust nightly had a regression. Regardless, I hope to see this resolved.

[abhijeetbhagat]

faced the same error today. workaround linked did the trick, although, i had to download the latest binaryen and replace system package mgr installed version.

[xgreenx]

It is problem with the generated code in the ink! use-ink/ink#1417