Maybe some like rustup install stable with docs
for it to be a one liner.
Also it would be a NTH that rustup update
does print from what to what are you updating
rustup update
info: syncing channel updates for 'stable-x86_64-pc-windows-msvc'
info: downloading component 'rustc'
26.7 MiB / 26.7 MiB (100 %) 1.2 MiB/s ETA: 0 s
info: downloading component 'rust-std'
33.5 MiB / 33.5 MiB (100 %) 1.2 MiB/s ETA: 0 s
info: downloading component 'rust-docs'
6.7 MiB / 6.7 MiB (100 %) 1.2 MiB/s ETA: 0 s
info: downloading component 'cargo'
2.5 MiB / 2.5 MiB (100 %) 1.2 MiB/s ETA: 0 s
6.7MiB is only 9.2% of the total.