reduce log load

Signed-off-by: Brian L. Troutwine <brian.troutwine@datadoghq.com>

Author: blt

test/antithesis/deploy/Dockerfile

@@ -90,8 +90,7 @@ RUN --mount=type=cache,target=/tools/target,id=antithesis-tools-target \
 # Runtime: Agent Data Plane (SUT).
 # ---------------------------------------------------------------------------
 FROM ${APP_IMAGE} AS adp
-ENV NO_COLOR=1 \
-    RUST_BACKTRACE=1
+ENV NO_COLOR=1
 RUN apt-get update && \
     apt-get install --no-install-recommends -y ca-certificates openssl && \
     rm -rf /var/lib/apt/lists/*

test/antithesis/deploy/docker-compose.yaml

@@ -33,7 +33,6 @@ services:
     command: ["run"]
     environment:
       NO_COLOR: "1"
-      RUST_BACKTRACE: "1"
       DD_API_KEY: "antithesis-test-api-key"
       DD_DATA_PLANE_ENABLED: "true"
       DD_DATA_PLANE_STANDALONE_MODE: "true"

test/antithesis/harness/src/bin/first_sample_config/config.rs

@@ -64,17 +64,17 @@ impl Distribution<DurationSeconds> for Probe {
 #[derive(Debug, Clone, Copy, Serialize)]
 #[serde(rename_all = "lowercase")]
 pub(crate) enum LogLevel {
-    /// Warnings and above.
-    Warn,
     /// Errors only.
     Error,
+    /// Critical only — the quietest level that still logs.
+    Critical,
 }
 
 impl Distribution<LogLevel> for StandardUniform {
     fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> LogLevel {
         match rng.random_range(0..2u8) {
-            0 => LogLevel::Warn,
-            _ => LogLevel::Error,
+            0 => LogLevel::Error,
+            _ => LogLevel::Critical,
         }
     }
 }