• Tree inventoried completely: the only upstream files are Cargo.toml, Cargo.toml.orig, .cargo_vcs_info.json and src/lib.rs (28 bytes, pub use vulcano_number::*;); the orig tarball and debian tarball contain exactly the same files and no LICENSE/COPYING/README exists upstream.
• Prescan author check said 4 files scanned, 3 holders declared and every holder named; confirmed by hand, the only copyright holder in the tree is Óscar Vera López <contact@oscarveral.dev> (Cargo.toml:9, Cargo.toml.orig inherited from its workspace), which the Files: * stanza names with the same spelling.
• No copyright/licence header or SPDX line exists in src/lib.rs or either Cargo.toml beyond license = "MIT"; grep for Copyright, (C), ©, SPDX-License-Identifier, Licence, Non-commercial, no modification, no derivative, All rights reserved, Good, not Evil, personal/academic use only found nothing restrictive anywhere in the tree.
• debian/copyright MIT text is the canonical Expat text and is reproduced in full (MIT is not in /usr/share/common-licenses); short name matches content; Files:/Copyright:/License: fields are valid DEP-5 per copyright-format 1.0.
• debian/copyright.debcargo.hint is debcargo's overlay template for regenerating debian/copyright; it is covered by the Files: debian/* MIT stanza, is source-only, and is standard in debcargo-conf. Its FIXME UNKNOWN-YEARS has been resolved in debian/copyright as 2024; year drift is not reportable and no source in the package contradicts it.
• debian/copyright and debian/control in the unpacked tree are byte-identical to those in rust-vulcano_0.1.1-1.debian.tar.xz, and the tarball has no debian/patches, so nothing was silently patched after unpacking; debian/source/format is 3.0 (quilt).
• Standards-Version 4.7.4 vs the reviewing system's Policy 4.7.4.1 (xd://policy table of contents) — first two components match, so not an issue.
• Build-Depends resolve: dh-sequence-cargo is Provided by dh-cargo 34; rustc (1.98.1+dfsg1-1~exp1) and libstd-rust-dev are in the archive; cargo:native/rustc:native exist. The <!nocheck> markers and the explicit ${misc:Depends} are correct at compat 13, and the override_dh_auto_test: dh_auto_test -- test --all in debian/rules is the documented dh-cargo way to run cargo test instead of cargo build (checked in /usr/share/perl5/Debian/Debhelper/Buildsystem/cargo.pm, sub test).
• Architecture/Multi-Arch and Provides match an existing archive package (librust-libc-dev: Architecture: any, Multi-Arch: same, versioned and +feature Provides) and the crate name/version: package librust-vulcano-dev with Provides: librust-vulcano{-0,-0.1,-0.1.1}{-dev,+default-dev}.
• debian/tests/control runs cargo-auto-test for all-features, default and no-default-features; Depends: dh-cargo (>= 33~), rustc, @ names an existing dh-cargo (34) and lets @ supply the crate dependency from the binary package's Depends; the Architecture: !riscv64 restriction on the no-default-features run is harmless (the crate has no features).
• Changelog: 0.1.1-1, distribution unstable, urgency medium, non-native version matching the 0.1.1 orig tarball, no maintainer scripts or *.maintscript and no debian/install/links/docs files needed with dh-cargo.
• Ignored as instructed: .pc/ and debian/cargo-checksum.json were not read and are not reported on; debian/watch was not reviewed.
• uscan found the packaged version as the newest upstream release (upstream 0.1.1, packaged 0.1.1).

• librust-vulcano-number-0.1+default-dev (Build-Depends-Arch, and the binary package's Depends) is in neither the reviewing system's package lists nor the NEW-queue snapshot of 2026-11-07T20:17Z, and neither is librust-vulcano-number-dev; if rust-vulcano-number has not been uploaded/accepted alongside this package, the build cannot start. The lists can be days old, so this is not proof of a fault.

None.