flask-framework charm builds failing due to dependency

[lengau]

Bug Description

Building a flask-framework charm is now failing due to indirect rust-based dependency issues requiring a newer version of rust.

To Reproduce

1. charmcraft init --profile=flask-framework
2. charmcraft pack

Environment

Ubuntu 24.04 with charmcraft edge

charmcraft.yaml

# This file configures Charmcraft.
# See https://juju.is/docs/sdk/charmcraft-config for guidance.

name: ff-charm

type: charm

bases:
  - build-on:
    - name: ubuntu
      channel: "22.04"
    run-on:
    - name: ubuntu
      channel: "22.04"

# (Required)
summary: A very short one-line summary of the Flask application.

# (Required)
description: |
  A comprehensive overview of your Flask application.

extensions:
  - flask-framework

Relevant log output

::    ::   Created wheel for attrs: filename=attrs-23.2.0-py3-none-any.whl size=60851 sha256=2ae03c2409587c42894bd2e9189ad977b1af7cb0cc6341914ffe30e1f73b84a5                                              
::    ::   Stored in directory: /root/.cache/pip/wheels/61/05/28/80f4ae2dc3db1710750af2cbc3f4efb6c0435097d9ca802dd1                                                                                        
::    ::   Building wheel for jsonschema-specifications (pyproject.toml): started                                                                                                                          
::    ::   Building wheel for jsonschema-specifications (pyproject.toml): finished with status 'done'                                                                                                      
::    ::   Created wheel for jsonschema-specifications: filename=jsonschema_specifications-2023.12.1-py3-none-any.whl size=18485 sha256=ee14a8da9c86f6dae36385e01caae0fb68b9f801a057f8d0689c796055c00239   
::    ::   Stored in directory: /root/.cache/pip/wheels/d2/89/51/54adbb04eea5d40f71a30acc182abb3e5e5d0e3d131a28d0e5                                                                                        
::    ::   Building wheel for referencing (pyproject.toml): started                                                                                                                                        
::    ::   Building wheel for referencing (pyproject.toml): finished with status 'done'                                                                                                                    
::    ::   Created wheel for referencing: filename=referencing-0.35.1-py3-none-any.whl size=26684 sha256=87509bc1eb8b7fa5747a2f7ccfc3248f77e56e820a158c6bbf4554e6a0779f13                                  
::    ::   Stored in directory: /root/.cache/pip/wheels/9c/cd/9d/c3a4add17384843de796a6704a2f798deed0391574d822558d                                                                                        
::    ::   Building wheel for rpds-py (pyproject.toml): started                                                                                                                                            
::    ::   Building wheel for rpds-py (pyproject.toml): finished with status 'error'                                                                                                                       
::    ::   error: subprocess-exited-with-error                                                                                                                                                             
::    ::                                                                                                                                                                                                   
::    ::   × Building wheel for rpds-py (pyproject.toml) did not run successfully.                                                                                                                         
::    ::   │ exit code: 1                                                                                                                                                                                  
::    ::   ╰─> [13 lines of output]                                                                                                                                                                        
::    ::       Running `maturin pep517 build-wheel -i /root/parts/charm/build/staging-venv/bin/python3 --compatibility off`                                                                                
::    ::       📦 Including license file "/tmp/pip-install-obsmhqgl/rpds-py_02cef2b8c3c64826ab00342aaea7fe0c/LICENSE"                                                                                       
::    ::       🔗 Found pyo3 bindings                                                                                                                                                                       
::    ::       🐍 Found CPython 3.10 at /root/parts/charm/build/staging-venv/bin/python3                                                                                                                    
::    ::       📡 Using build options features from pyproject.toml                                                                                                                                          
::    ::       error: package `triomphe v0.1.13` cannot be built because it requires rustc 1.76 or newer, while the currently active rustc version is 1.75.0                                               
::    ::       Either upgrade to rustc 1.76 or newer, or use                                                                                                                                               
::    ::       cargo update [email protected] --precise ver                                                                                                                                                  
::    ::       where `ver` is the latest version of `triomphe` supporting rustc 1.75.0                                                                                                                     
::    ::       💥 maturin failed                                                                                                                                                                            
::    ::         Caused by: Failed to build a native library through cargo                                                                                                                                 
::    ::         Caused by: Cargo build finished with "exit status: 101": `env -u CARGO PYO3_ENVIRONMENT_SIGNATURE="cpython-3.10-64bit" PYO3_PYTHON="/root/parts/charm/build/staging-venv/bin/python3" PYTHON_SYS_EXECUTABLE="/root/parts/charm/build/staging-venv/bin/python3" "cargo" "rustc" "--features" "pyo3/extension-module" "--message-format" "json-render-diagnostics" "--manifest-path" "/tmp/pip-install-obsmhqgl/rpds-py_02cef2b8c3c64826ab00342aaea7fe0c/Cargo.toml" "--release" "--lib"`                                                                                                                           
::    ::       Error: command ['maturin', 'pep517', 'build-wheel', '-i', '/root/parts/charm/build/staging-venv/bin/python3', '--compatibility', 'off'] returned non-zero exit status 1                     
::    ::       [end of output]                                                                                                                                                                             
::    ::                                                                                                                                                                                                   
::    ::   note: This error originates from a subprocess, and is likely not a problem with pip.                                                                                                            
::    ::   ERROR: Failed building wheel for rpds-py                                                                                                                                                        
::    :: Successfully built paas-app-charmer pydantic pydantic-core jsonschema ops websocket-client cosl annotated-types attrs jsonschema-specifications referencing                                       
::    :: Failed to build rpds-py                                                                                                                                                                           
::    :: ERROR: ERROR: Failed to build installable wheels for some pyproject.toml based projects (rpds-py)