feat: rely on `tracing-subscriber` in tests (#4950)

`tracing` crate is already used within the codebase, this change allows
developers to benefit from that functionality when running and debugging
tests

Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>

Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>

Cargo.lock

@@ -2846,10 +2846,10 @@ dependencies = [
  "cap-std",
  "cfg-if",
  "os_pipe",
- "pretty_env_logger",
  "target-lexicon",
  "tempfile",
  "tokio",
+ "tracing-subscriber",
  "wasi-cap-std-sync",
  "wasi-common",
  "wasmtime",

crates/test-programs/Cargo.toml

@@ -16,7 +16,7 @@ wasi-cap-std-sync = { path = "../wasi-common/cap-std-sync", version = "2.0.0" }
 wasmtime = { path = "../wasmtime", version = "2.0.0" }
 wasmtime-wasi = { path = "../wasi", version = "2.0.0", features = ["tokio"] }
 target-lexicon = "0.12.0"
-pretty_env_logger = "0.4.0"
+tracing-subscriber = { version = "0.3.1", default-features = false, features = ['fmt'] }
 tempfile = "3.1.0"
 os_pipe = "0.9"
 anyhow = "1.0.19"

crates/test-programs/tests/wasm_tests/main.rs

@@ -7,9 +7,7 @@ use std::sync::Once;
 static LOG_INIT: Once = Once::new();
 
 fn setup_log() {
-    LOG_INIT.call_once(|| {
+    LOG_INIT.call_once(tracing_subscriber::fmt::init)
-        pretty_env_logger::init();
-    })
 }
 
 include!(concat!(env!("OUT_DIR"), "/wasi_tests.rs"));