update tracing-subscriber (#3473)

which gets rid of the transitive dep on `chrono` that was affected by
`RUSTSEC-2020-0159`.

Cargo.lock

@@ -420,18 +420,6 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "chrono"
-version = "0.4.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
-dependencies = [
- "libc",
- "num-integer",
- "num-traits",
- "winapi",
-]
-
 [[package]]
 name = "cipher"
 version = "0.3.0"
@@ -1568,15 +1556,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "matchers"
-version = "0.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f099785f7595cc4b4553a174ce30dd7589ef93391ff414dbb67f62392b9e0ce1"
-dependencies = [
- "regex-automata",
-]
-
 [[package]]
 name = "maybe-owned"
 version = "0.3.4"
@@ -2423,9 +2402,6 @@ name = "regex-automata"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
-dependencies = [
- "regex-syntax",
-]
 
 [[package]]
 name = "regex-syntax"
@@ -2969,9 +2945,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.18"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9ff14f98b1a4b289c6248a023c1c2fa1491062964e9fed67ab29c4e4da4a052"
+checksum = "1f4ed65637b8390770814083d20756f87bfa2c21bf2f110babdc5438351746e4"
 dependencies = [
  "lazy_static",
 ]
@@ -2987,36 +2963,18 @@ dependencies = [
  "tracing-core",
 ]
 
-[[package]]
-name = "tracing-serde"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb65ea441fbb84f9f6748fd496cf7f63ec9af5bca94dd86456978d055e8eb28b"
-dependencies = [
- "serde",
- "tracing-core",
-]
-
 [[package]]
 name = "tracing-subscriber"
-version = "0.2.18"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa5553bf0883ba7c9cbe493b085c29926bd41b66afc31ff72cf17ff4fb60dcd5"
+checksum = "80a4ddde70311d8da398062ecf6fc2c309337de6b0f77d6c27aff8d53f6fca52"
 dependencies = [
  "ansi_term 0.12.1",
- "chrono",
- "lazy_static",
- "matchers",
- "regex",
- "serde",
- "serde_json",
  "sharded-slab",
  "smallvec",
  "thread_local",
- "tracing",
  "tracing-core",
  "tracing-log",
- "tracing-serde",
 ]
 
 [[package]]

Cargo.toml

@@ -55,7 +55,7 @@ test-programs = { path = "crates/test-programs" }
 wasmtime-fuzzing = { path = "crates/fuzzing" }
 wasmtime-runtime = { path = "crates/runtime" }
 tokio = { version = "1.8.0", features = ["rt", "time", "macros", "rt-multi-thread"] }
-tracing-subscriber = "0.2.16"
+tracing-subscriber = "0.3.1"
 wast = "38.0.0"
 criterion = "0.3.4"
 num_cpus = "1.13.0"

crates/wiggle/test-helpers/Cargo.toml

@@ -18,7 +18,7 @@ wiggle = { path = "..", features = ["tracing_log"] }
 [dev-dependencies]
 thiserror = "1.0"
 tracing = "0.1.26"
-tracing-subscriber = "0.2.4"
+tracing-subscriber = "0.3.1"
 env_logger = "0.8"
 
 [badges]