• Prescan: the holder check reported that every holder found is named in debian/copyright; it listed no files needing individual judgement. The only notices in the tree are LICENSE-MIT: Copyright (c) 2016 Joe Wilm and src/ansi.rs:1 // SPDX-License-Identifier: Apache-2.0, both holders being named in the Files: * stanza of debian/copyright.
• Decoded the whole tree (glob with gitignore/hidden enabled): 3 upstream sources (src/lib.rs, src/ansi.rs, src/params.rs), Cargo.toml, Cargo.toml.orig, Cargo.lock, .cargo_vcs_info.json, README.md, LICENSE-APACHE (176 lines, Apache 2.0 text) and LICENSE-MIT (MIT text, Joe Wilm 2016). debian/ holds control, copyright, copyright.debcargo.hint, changelog, rules, debcargo.toml, watch, source/format, tests/control, upstream/metadata, an empty patches/ and the .pc/ and cargo-checksum.json I was told to skip.
• debian/copyright is DEP-5 (Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/), with Files: * -> License: Apache-2.0 or MIT, then Files: debian/* overriding for the packaging; both short names have stand-alone License paragraphs, MIT with full text and Apache-2.0 by pointer to /usr/share/common-licenses/Apache-2.0. Every path is matched by one of the two stanzas, so no file is left unlicensed.
• src/ansi.rs says // SPDX-License-Identifier: Apache-2.0 and states it was originally part of alacritty_terminal, licensed under Apache-2.0; that licence is one of the two options declared for Files: *, so the file is covered by a licence named in debian/copyright (the per-file marker is narrower than the crate-level license = "Apache-2.0 OR MIT" in Cargo.toml, not broader). No separate stanza needed.
• Read LICENSE-MIT in full: standard MIT permission text, DFSG-free, with the copyright notice reproduced both in the file and in debian/copyright. LICENSE-APACHE is the unmodified Apache License 2.0. Mutually compatible; no non-commercial, no-modification or field-of-use terms anywhere in the tree.
• No vendored third-party sources, no subdirectory LICENSE/COPYING/NOTICE files, no fonts, images, sounds or opaque data files; no generated or built files (no target/, no minified or PDF files).
• debian/control: debhelper-compat (= 13) with dh-sequence-cargo; the single binary librust-atuin-vte-dev has Architecture: any, Multi-Arch: same, the usual Provides for the collapsed feature set, and Breaks: rustc (<< 1.62.1~) matching rust-version 1.62.1. At compat 13 dh_gencontrol supplies ${misc:Depends} itself, and ${misc:Depends} is named here anyway.
• debian/rules: dh $@ --buildsystem cargo with override_dh_auto_test: dh_auto_test -- test --all. Checked /usr/share/perl5/Debian/Debhelper/Buildsystem/cargo.pm: the test step runs cargo test with the arguments given, and --all is cargo's workspace alias, not all features, so only the default features (arrayvec, memchr) are compiled; those two dev packages are exactly what Build-Depends-Arch lists. The optional bitflags, cursor-icon, log and serde deps are exercised only by the autopkgtest entries, where they come in as Depends of the -dev package. Cargo.toml has no [dev-dependencies], so no dev-dependency is missing from Build-Depends.
• debian/tests/control: nine cargo-auto-test entries (--all-features, default, and each feature and none), all with Depends: dh-cargo (>= 33~), rustc (>= 1.62.1), @ and Restrictions: allow-stderr; the single-feature runs carry Architecture: !riscv64, which is debcargo's normal exclusion for the slow feature matrix and not a defect.
• Format is 3.0 (quilt), debian/patches exists but is empty with no series file (confirmed against the .debian.tar.xz member list), so there are no patches to judge for DEP-3 headers or forwarding; the .dsc, control and changelog agree on version 0.15.1-1, distribution unstable, with a signed-off entry from the uploader.
• Standards-Version 4.7.4 against Policy 4.7.4.1 (checked with the policy tool): first two components match, so it is current and not an issue.
• Dependencies exist in the archive: librust-memchr-2-dev is provided by librust-memchr-dev 2.8.3-1 (satisfies >= 2.7.4), librust-arrayvec-0.7-dev by librust-arrayvec-dev 0.7.8-1 (satisfies >= 0.7.2), librust-cursor-icon-1-dev by librust-cursor-icon-dev 1.2.0-1. librust-atuin-vte-dev is this upload. Homepage and Vcs-Git/Vcs-Browser point at the right repositories; debian/upstream/metadata names crates.io and the fork's git repository.
• debian/copyright.debcargo.hint is debcargo's working file, not installed into the binary; its FIXME (overlay) UNKNOWN-LICENSE for LICENSE-MIT has been resolved in the real debian/copyright, which carries the MIT text, and its year warning is moot as debian/copyright states 2016 for Joe Wilm, matching LICENSE-MIT.
• uscan found the packaged version as the newest upstream release (upstream 0.15.1, packaged 0.15.1).
• Every pointer of debian/copyright to /usr/share/common-licenses names a file that is there (Apache-2.0).

• debian/copyright's Files: * names only Joe Wilm and Christian Duerr. Contributions made in the Atuin fork carry no in-file notices in the crates.io tarball (only the crate-level Cargo.toml authors and the inherited alacritty_terminal header), so whether any additional holder of fork-only changes should be named cannot be checked from the package alone; nothing in the tree contradicts the current list.

None.