Very slow path fetches in certain Docker environments

[shard77]

Describe the bug
NixOS/nix#11258 affects devenv docker versions with nix >= 2.23.0.
I am encountering the same bug, where fetching gets stuck on specific packages for no apparent reason (e.g. stdenv-linux and other ones) .
I would be happy to know if there could be any workarounds for this, the only one I can think of is rolling back to devenv < 1.4, and building the docker image manually, but since 1.4 brought a lot of fixes / changes, I'm afraid of the drawbacks.

To reproduce
See NixOS/nix#11258 under "Steps to Reproduce".
In my case, this is are my devenv.nix and devenv.yml files:

{ pkgs, lib, config, inputs, ... }:

{
  languages = {
    rust = {
      enable = true;
      channel = "stable";
      components = [ "rustc" "cargo" "clippy" "rustfmt" "rust-analyzer" ];
    };
  };
  env = {
    LIBCLANG_PATH = "${pkgs.libclang.lib}/lib";
    BINDGEN_EXTRA_CLANG_ARGS = ''-I"${pkgs.glibc.dev}/include"'';
    LD_LIBRARY_PATH = lib.makeLibraryPath [ pkgs.llvm_18 pkgs.clang_18 pkgs.libclang.lib ];
  };

  git-hooks.hooks = {
    clippy.enable = true;
    rustfmt.enable = true;
    cargo-check.enable = true;
  };

  packages = [ pkgs.protobuf_29 pkgs.sqlx-cli pkgs.gcc pkgs.clang pkgs.libclang pkgs.glibc.dev ];

}

inputs:
  fenix:
    url: github:nix-community/fenix
    inputs:
      nixpkgs:
        follows: nixpkgs
  nixpkgs:
    url: github:cachix/devenv-nixpkgs/rolling

I am encountering the issue in gitlab CI, so for reference, here is my .gitlab-ci.yml file:

image: ghcr.io/cachix/devenv/devenv:latest

stages:
  - build
  - test
  - lint

default:
  tags:
    - docker-devenv-personal
  before_script:
    - devenv ci --log-format tracing-pretty --verbose

variables:
  CARGO_HOME: "$CI_PROJECT_DIR/.cargo"
  RUST_BACKTRACE: full

cache:
  key: ${CI_COMMIT_REF_SLUG}
  paths:
    - target/
    - .cargo/

build:
  stage: build
  script:
    - echo "Building release..."
    - cargo build --release

test:
  stage: test
  script:
    - echo "Running tests..."
    - cargo test

lint:
  stage: lint
  script:
    - echo "Running format and clippy checks..."
    - cargo fmt -- --check
    - cargo clippy -- -D warnings

Version
Tried with the latest and v1.5.2 registry tags.