* installing *source* package ‘icebergr’ ...
** this is package ‘icebergr’ version ‘0.1.0’
** package ‘icebergr’ successfully unpacked and MD5 sums checked
** using staged installation
Error in eval(ei, envir) : 
--------------------- [UNSUPPORTED RUST VERSION] --------------------
- Minimum supported Rust version is 1.92.
- Installed Rust version is 1.91.1.

'icebergr' bundles Apache Iceberg's Rust implementation, which is
written against Rust edition 2024. Please run `rustup update stable`,
or install a newer toolchain from
https://www.rust-lang.org/tools/install.
---------------------------------------------------------------------
Calls: source -> withVisible -> eval -> eval
Execution halted
ERROR: configuration failed for package ‘icebergr’
* removing ‘/Volumes/Builds/packages/big-sur-arm64/results/4.5/icebergr.Rcheck/icebergr’