I am using cargo install cargo-contract --version 2.0.0-alpha.3 to install 2.0.0-alpha.3, I got error: failed to compile cargo-contract v2.0.0-alpha.3, intermediate artifacts can be found at /var/folders/q3/d699hkpx49xfy236ph7sltr40000gn/T/cargo-installPMiOKW error. Does cargo-contract Pre-release installation has issue?

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1 Answer 1


Because some dependencies got updated (breaking changes).

You should use this to lock the dependencies version:

cargo install --force --locked cargo-contract --version 2.0.0-alpha.3

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