Ubuntu 23.04: "proc macro `entry` not expanded: server is built without sysroot"

[ChristianHeller63]

I think I carefully followed the instructions, but have lots of build errors. Maybe my setup is too new? Ubuntu 23.04 added some rust...

1st error:
proc macro entry not expanded: server is built without sysroot

My setup:

Ubuntu 23.04

uname -a
Linux chris-All-Series 6.2.0-20-generic #20-Ubuntu SMP PREEMPT_DYNAMIC Thu Apr 6 07:48:48 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

rustc 1.67.1 (d5a82bbd2 2023-02-07) (built from a source tarball)

itm v0.3.1` is already installed

$ itmdump -V
Command 'itmdump' not found, did you mean:
command 'atmdump' from deb atm-tools (1:2.5.1-4build2)
command 'mitmdump' from deb mitmproxy (8.1.1-1)
Try: sudo apt install

$ cargo install cargo-binutils
Updating crates.io index
Ignored package cargo-binutils v0.3.6 is already installed, use --force to override