Convert Cargo.lock to new lock file format

Since version 1.38.0 of Rust, Cargo has built in support for a new lock
file format that aims at reducing merge conflicts of unrelated changes.
Given that we require an even more recent version of Rust, it seems safe
to switch over to this new format (which by now is the default for new
projects anyway).
This patch changes the format of Cargo.lock accordingly.

2 files changed, 90 insertions, 91 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 142b288..fa9938c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@ Unreleased
 ----------
 - Added bash completion support via `shell-complete` utility program
 - Updated minimum required Rust version to `1.40.0`
+- Converted `Cargo.lock` to new lock file format
 - Bumped `libc` dependency to `0.2.69`
 - Bumped `structopt` dependency to `0.3.13`
 - Bumped various transitive dependencies to most recent versions
diff --git a/Cargo.lock b/Cargo.lock
index 8391a21..b2f6a17 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,298 +4,296 @@
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 version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8716408b8bc624ed7f65d223ddb9ac2d044c0547b6fa4b0d554f3a9540496ada"
 dependencies = [
- "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr",
 ]
 
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23ce669cd6c8588f79e15cf450314f9638f967fc5770ff1c7c1deb0925ea7cfa"
 
 [[package]]
 name = "bitflags"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
 [[package]]
 name = "cc"
 version = "1.0.50"
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 [[package]]
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 [[package]]
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- "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags",
+ "textwrap",
+ "unicode-width",
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 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "wasi",
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+ "nitrokey-test",
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 [[package]]
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