is user qbittorrent the owner of profileDir? I don't know about that "without build-id" error; but from the stacktrace it looks more like a permission error/problem opening a dir:

                                             #6  0x00000000004da9a5 _ZNK7**Profile21ensureDirectoryExists**E13SpecialFolder.cold (/nix/store/5c5dhizcijh4z4ps4gxa8y3h2ak7413d-qbittorrent-nox-5.1.0/bin/.qbittorrent-nox-wrapped + 0xda9a5)

Hello. I'm trying to build a Rust project with a flake that worked, but now that I have to bump a library to a newer version, I get this error:

       last 10 log lines:
       >     0: failed to load source for dependency `bech32`
       >     1: Unable to update registry `crates-io`
       >     2: failed to update replaced source registry `crates-io`
       >     3: failed to parse manifest at `/nix/store/6nscr07ij23a78b63xkjp2y7w1yhafn1-vendor-cargo-deps/c19b7c6f923b580ac259164a89f2577984ad5ab09ee9d583b888f934adbbe8d0/base64ct-1.8.0/Cargo.toml`
       >     4: feature `edition2024` is required
       >
       >        The package requires the Cargo feature called `edition2024`, but that feature is not stabilized in this version of Cargo (1.79.0).
       >        Consider trying a more recent nightly release.
       >        See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#edition-2024 for more information about the status of this feature.
       >        ), exit_code: 101 }