Bug#1051092: gir-rust-code-generator: FTBFS: error: failed to select a version for the requirement `toml = "^0.5"`

[Aurelien Jarno]

Source: gir-rust-code-generator
Version: 0.18.1-2
Severity: serious
Tags: ftbfs
Justification: fails to build from source (but built successfully in the past)

Dear maintainer,

gir-rust-code-generator fails to build from source. From my build log on
amd64:
| 
| debian cargo wrapper: rust_type, gnu_type: x86_64-unknown-linux-gnu, x86_64-linux-gnu
| debian cargo wrapper: running subprocess (['env', 'RUST_BACKTRACE=1', '/usr/bin/cargo', '-Zavoid-dev-deps', 'build', '--verbose', '--verbose', '-j12', '--target', 'x86_64-unknown-linux-gnu'],) {}
| error: failed to select a version for the requirement `toml = "^0.5"`
| candidate versions found which didn't match: 0.7.6
| location searched: directory source `/<<PKGBUILDDIR>>/debian/cargo_registry` (which is replacing registry `crates-io`)
| required by package `gir v0.0.1 (/<<PKGBUILDDIR>>)`
| perhaps a crate was updated and forgotten to be re-vendored?
| dh_auto_test: error: /usr/share/cargo/bin/cargo build returned exit code 101
| make: *** [debian/rules:16: binary-arch] Error 25
| dpkg-buildpackage: error: debian/rules binary-arch subprocess returned exit status 2

A full build log on riscv64 is also available:
https://buildd.debian.org/status/fetch.php?pkg=gir-rust-code-generator&arch=riscv64&ver=0.18.1-2&stamp=1693535398&raw=0

Regards
Aurelien