feat: update Cargo.lock int Rust projects

If we update Cargo.toml, but not Cargo.lock, and Cargo.lock is in git,
when cargo publish will refuse to publish, because the files are out
of sync.

1 files changed, 13 insertions, 0 deletions

diff --git a/bumper.md b/bumper.md
index 43dd8c7..cebc1fb 100644
--- a/bumper.md
+++ b/bumper.md
@@ -91,17 +91,27 @@ project. We use a Rust project for simplicity.
 
 ~~~scenario
 given an installed Bumper
+given file foo/src/main.rs from main.rs
 given file foo/Cargo.toml from Cargo.toml
+given file foo/Cargo.lock from Cargo.lock
 given file foo/debian/changelog from changelog
 given all files in foo are committed to git
 when I run, in foo, bumper 1.2.0
 then all changes in foo are committed
 then in foo, git tag v1.2.0 is a signed tag
 then file foo/Cargo.toml matches regex /version\s*=\s*"1\.2\.0"/
+then file foo/Cargo.lock is newer than foo/Cargo.toml
+then file foo/Cargo.lock is committed to git
 then file foo/debian/changelog matches regex / \(0\.1\.0-1\) /
 then file foo/debian/changelog matches regex / \(1\.2\.0-1\) /
 ~~~
 
+~~~{#main.rs .file .rust}
+fn main() {
+    println!("Hello, world!");
+}
+~~~
+
 ~~~{#Cargo.toml .file .ini}
 [package]
 name = "foo"
@@ -110,8 +120,11 @@ authors = ["J. Random Hacker <jr@example.com>"]
 edition = "2018"
 
 [dependencies]
+anyhow = "1"
 ~~~
 
+~~~{#Cargo.lock .file .ini}
+~~~
 ~~~{#changelog .file}
 dummy (0.1.0-1) unstable; urgency=low