build: Propagate tracing feature from all crates

When running `cargo build --features tracing` with `src/utils`
instrumented errors are produced due to the `log-instrument` optional
dependency not being enabled by the `utils/tracing` feature. This occurs
due to crate build order due to not all dependent crates back
propagating the `tracing` feature to `src/utils`. This commit fixes this
by updating all dependent crates to back propagate the `tracing`
feature.

Signed-off-by: Jonathan Woollett-Light <jcawl@amazon.co.uk>

src/api_server/Cargo.toml

@@ -26,4 +26,4 @@ vmm = { path = "../vmm" }
 libc = "0.2.117"
 
 [features]
-tracing = ["log-instrument"]
+tracing = ["log-instrument", "utils/tracing", "vmm/tracing"]

src/cpu-template-helper/Cargo.toml

@@ -25,4 +25,4 @@ vmm = { path = "../vmm" }
 utils = { path = "../utils" }
 
 [features]
-tracing = ["log-instrument"]
+tracing = ["log-instrument", "vmm/tracing"]

src/jailer/Cargo.toml

@@ -21,4 +21,4 @@ thiserror = "1.0.50"
 utils = { path = "../utils" }
 
 [features]
-tracing = ["log-instrument"]
+tracing = ["log-instrument", "utils/tracing"]

src/rebase-snap/Cargo.toml

@@ -18,4 +18,4 @@ thiserror = "1.0.50"
 utils = { path = "../utils" }
 
 [features]
-tracing = ["log-instrument"]
+tracing = ["log-instrument", "utils/tracing"]

src/seccompiler/Cargo.toml

@@ -27,4 +27,4 @@ thiserror = "1.0.50"
 utils = { path = "../utils" }
 
 [features]
-tracing = ["log-instrument"]
+tracing = ["log-instrument", "utils/tracing"]

src/snapshot-editor/Cargo.toml

@@ -24,4 +24,4 @@ fc_utils = { package = "utils", path = "../utils" }
 clap-num = "1.0.2"
 
 [features]
-tracing = ["log-instrument"]
+tracing = ["log-instrument", "fc_utils/tracing", "vmm/tracing"]