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package bumpalo v3.15.4 cannot be built because it requires rustc 1.73.0 or newer, while the currently active rustc version is 1.72.0-dev Either upgrade to rustc 1.73.0 or newer, or use cargo update -p [email protected] --precise ver where ver is the latest version of bumpalo supporting rustc 1.72.0-dev

my version

  • solana-cli 1.18.6
  • rustc 1.76.0
  • cargo 1.76.0
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1- if you use ubuntu you should search old rustc in /.local/share/solana and replace it with newer version.

second soloution: run "cargo build-sbf --version" and if your solana version not updated update it with "solana-install init" to "newest version"

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