bug: `kit update` error [SOLVED]

[dr-frmr]

Describe the bug
Getting a strange error trying to run kit update.

kit update
ERROR src/build/mod.rs:33: error: Command `cargo ["install", "--git", "https://github.com/kinode-dao/kit", "--branch", "master", "--color=always"]` failed with exit code 101
stdout:
stderr:     Updating git repository `https://github.com/kinode-dao/kit`
  Installing kit v0.3.1 (https://github.com/kinode-dao/kit?branch=master#b5612955)
    Updating crates.io index
    Updating git repository `https://github.com/kinode-dao/process_lib.git`
    Updating git repository `https://github.com/alloy-rs/alloy.git`
    Updating git repository `https://github.com/bytecodealliance/wit-bindgen`
 Downloading crates ...
  Downloaded either v1.11.0
  Downloaded anyhow v1.0.82
  Downloaded quote v1.0.36
  Downloaded strsim v0.11.1
  Downloaded time-macros v0.2.18
  Downloaded rmp v0.8.14
  Downloaded rmp-serde v1.2.0
  Downloaded jobserver v0.1.30
  Downloaded getrandom v0.2.14
  Downloaded serde_derive v1.0.198
  Downloaded proc-macro2 v1.0.81
  Downloaded serde v1.0.198
  Downloaded cc v1.0.94
  Downloaded backtrace v0.3.71
  Downloaded time v0.3.36
  Downloaded serde_json v1.0.116
  Downloaded winnow v0.6.6
  Downloaded syn v2.0.60
  Downloaded h2 v0.3.26
  Downloaded encoding_rs v0.8.34
   Compiling proc-macro2 v1.0.81
   Compiling unicode-ident v1.0.12
   Compiling libc v0.2.153
   Compiling serde v1.0.198
   Compiling cfg-if v1.0.0
   Compiling pkg-config v0.3.30
   Compiling version_check v0.9.4
   Compiling itoa v1.0.11
   Compiling autocfg v1.2.0
   Compiling pin-project-lite v0.2.14
   Compiling once_cell v1.19.0
   Compiling log v0.4.21
   Compiling typenum v1.17.0
   Compiling anyhow v1.0.82
   Compiling semver v1.0.22
   Compiling vcpkg v0.2.15
   Compiling tracing-core v0.1.32
   Compiling serde_json v1.0.116
   Compiling ryu v1.0.17
   Compiling generic-array v0.14.7
   Compiling slab v0.4.9
   Compiling futures-core v0.3.30
   Compiling bitflags v2.5.0
   Compiling hashbrown v0.14.3
   Compiling memchr v2.7.2
   Compiling fnv v1.0.7
error[E0658]: use of unstable library feature 'proc_macro_byte_character'
   --> /Users/benj/.cargo/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.81/src/wrapper.rs:871:21
    |
871 |                     proc_macro::Literal::byte_character(byte)
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: see issue #115268 <https://github.com/rust-lang/rust/issues/115268> for more information
    = help: add `#![feature(proc_macro_byte_character)]` to the crate attributes to enable
    = note: this compiler was built on 2024-03-27; consider upgrading it if it is out of date

error[E0658]: use of unstable library feature 'proc_macro_c_str_literals'
   --> /Users/benj/.cargo/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.81/src/wrapper.rs:898:21
    |
898 |                     proc_macro::Literal::c_string(string)
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: see issue #119750 <https://github.com/rust-lang/rust/issues/119750> for more information
    = help: add `#![feature(proc_macro_c_str_literals)]` to the crate attributes to enable
    = note: this compiler was built on 2024-03-27; consider upgrading it if it is out of date

   Compiling equivalent v1.0.1
   Compiling lazy_static v1.4.0
For more information about this error, try `rustc --explain E0658`.
error: could not compile `proc-macro2` (lib) due to 2 previous errors
warning: build failed, waiting for other jobs to finish...
error: failed to compile `kit v0.3.1 (https://github.com/kinode-dao/kit?branch=master#b5612955)`, intermediate artifacts can be found at `/var/folders/wg/rgvtftcs7hl7ynmzkxcm77sh0000gn/T/cargo-installgIQoDN`.
To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.

ERROR src/update/mod.rs:8: error: Command `cargo ["install", "--git", "https://github.com/kinode-dao/kit", "--branch", "master", "--color=always"]` failed with exit code 101

Desktop (please complete the following information):

• OS: macOS
• Kinode version 0.6.2
• kit version ?

[dr-frmr]

Weirdly I can build the repo just fine.

[dr-frmr]

Turns out this is solved for me just by updating my compiler.

Let's leave this open for a bit to provide help if anyone hits the same thing: just run rustup update.