agent: Update Cargo.lock for earlier dependency change

Commit 81607e34 updated src/agent/rustjail/Cargo.toml, to remove an
unneeded dependency.  That causes cargo to update src/agent/Cargo.lock
on each build.  However, the change to Cargo.lock wasn't checked in
meaning anyone working on the agent code will get bogus diffs with every
build.  Check in the missing file to fix this.

fixes #1505

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

src/agent/Cargo.lock

@@ -42,18 +42,6 @@ version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dabe5a181f83789739c194cbe5a897dde195078fac08568d09221fd6137a7ba8"
 
-[[package]]
-name = "arrayref"
-version = "0.3.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
-
-[[package]]
-name = "arrayvec"
-version = "0.5.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
-
 [[package]]
 name = "async-trait"
 version = "0.1.42"
@@ -85,29 +73,12 @@ dependencies = [
  "rustc-demangle",
 ]
 
-[[package]]
-name = "base64"
-version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
-
 [[package]]
 name = "bitflags"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
-[[package]]
-name = "blake2b_simd"
-version = "0.5.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afa748e348ad3be8263be728124b24a24f268266f6f5d58af9d75f6a40b5c587"
-dependencies = [
- "arrayref",
- "arrayvec",
- "constant_time_eq",
-]
-
 [[package]]
 name = "byteorder"
 version = "1.3.4"
@@ -200,12 +171,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "constant_time_eq"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "245097e9a4535ee1e3e3931fcfcd55a796a44c643e8596ff6566d68f09b87bbc"
-
 [[package]]
 name = "crc32fast"
 version = "1.2.1"
@@ -221,7 +186,7 @@ version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b153fe7cbef478c567df0f972e02e6d736db11affe43dfc9c56a9374d1adfb87"
 dependencies = [
- "crossbeam-utils 0.7.2",
+ "crossbeam-utils",
  "maybe-uninit",
 ]
 
@@ -236,17 +201,6 @@ dependencies = [
  "lazy_static",
 ]
 
-[[package]]
-name = "crossbeam-utils"
-version = "0.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02d96d1e189ef58269ebe5b97953da3274d83a93af647c2ddd6f9dab28cedb8d"
-dependencies = [
- "autocfg",
- "cfg-if 1.0.0",
- "lazy_static",
-]
-
 [[package]]
 name = "derive-new"
 version = "0.5.8"
@@ -258,26 +212,6 @@ dependencies = [
  "syn 1.0.55",
 ]
 
-[[package]]
-name = "dirs"
-version = "3.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "142995ed02755914747cc6ca76fc7e4583cd18578746716d0508ea6ed558b9ff"
-dependencies = [
- "dirs-sys",
-]
-
-[[package]]
-name = "dirs-sys"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e93d7f5705de3e49895a2b5e0b8855a1c27f080192ae9c32a6432d50741a57a"
-dependencies = [
- "libc",
- "redox_users",
- "winapi",
-]
-
 [[package]]
 name = "either"
 version = "1.6.1"
@@ -1159,17 +1093,6 @@ version = "0.1.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
 
-[[package]]
-name = "redox_users"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de0737333e7a9502c789a36d7c7fa6092a49895d4faa31ca5df163857ded2e9d"
-dependencies = [
- "getrandom",
- "redox_syscall",
- "rust-argon2",
-]
-
 [[package]]
 name = "regex"
 version = "1.4.2"
@@ -1228,18 +1151,6 @@ dependencies = [
  "tokio 1.2.0",
 ]
 
-[[package]]
-name = "rust-argon2"
-version = "0.8.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b18820d944b33caa75a71378964ac46f58517c92b6ae5f762636247c09e78fb"
-dependencies = [
- "base64",
- "blake2b_simd",
- "constant_time_eq",
- "crossbeam-utils 0.8.1",
-]
-
 [[package]]
 name = "rustc-demangle"
 version = "0.1.18"
@@ -1263,7 +1174,6 @@ dependencies = [
  "async-trait",
  "caps",
  "cgroups-rs",
- "dirs",
  "futures",
  "inotify",
  "lazy_static",