I followed this tutorial.
https://substrate.dev/docs/en/tutorials/create-your-first-substrate-chain/setup
when I run cargo build --release then got the error:
error[E0277]: `[parity_wasm::elements::Instruction; 15]` is not an iterator
--> /home/ubuntu/.cargo/registry/src/github.com-1ecc6299db9ec823/pwasm-utils-0.18.2/src/stack_height/mod.rs:300:23
|
300 | new_instrs.extend(new_seq);
| ^^^^^^^
| |
| expected an implementor of trait `IntoIterator`
| help: consider borrowing here: `&new_seq`
|
= note: the trait bound `[parity_wasm::elements::Instruction; 15]: IntoIterator` is not satisfied
= note: required because of the requirements on the impl of `IntoIterator` for `[parity_wasm::elements::Instruction; 15]`
Compiling unsigned-varint v0.7.0
I used Ubuntu & cargo version 1.51.0
Thank you
Whenever in doubt about the nightly version that is know to work, it is best to look at the shell.nix file on substrate at the tag/release/branch you are building against. For example, on master as of 2021-10-11:
rust-nightly = with nixpkgs; ((rustChannelOf { date = "2021-09-10"; channel = "nightly"; }).rust.override {...}
You can downgrade your toolchain (for wasm target too, needed for substrate builds) with any version using:
rustup uninstall nightly
rustup install nightly-<YYYY-MM-DD>
rustup target add wasm32-unknown-unknown --toolchain nightly-<YYYY-MM-DD>
Then build with:
WASM_BUILD_TOOLCHAIN=nightly-<yyyy-MM-dd> cargo build --release