[Pkg-rust-maintainers] Bug#918854: segfault updating crates.io index

[Josh Triplett]

Package: cargo
Version: 0.31.1-1
Severity: grave

Any time I try to update the crates.io index with the currently packaged
version of cargo, I get a segfault:

$ cargo update
    Updating crates.io index
Segmentation fault

I can reproduce this in a brand new project (`cargo new foo`) by adding
any dependency to `Cargo.toml` (e.g. `strsim = "*"`) and then running
`cargo update`.

libgit2 was just updated recently; that might potentially be related.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages cargo depends on:
ii  binutils            2.31.1-11
ii  gcc                 4:8.2.0-2
ii  gcc-7 [c-compiler]  7.4.0-2
ii  gcc-8 [c-compiler]  8.2.0-14
ii  libc6               2.28-4
ii  libcurl3-gnutls     7.62.0-1
ii  libgcc1             1:8.2.0-14
ii  libgit2-27          0.27.7+dfsg.1-0.1
ii  libssh2-1           1.8.0-2
ii  libssl1.1           1.1.1a-1
ii  rustc               1.31.0+dfsg1-2
ii  zlib1g              1:1.2.11.dfsg-1

cargo recommends no packages.

Versions of packages cargo suggests:
pn  cargo-doc  <none>
ii  python3    3.7.1-3

-- no debconf information