Add some audits for some low-hanging fruit (#4836)

I looked through some of our smaller dependencies to vet them and add an
audit for them. These were the ones that were all "obviously correct" to
me before I ran out of steam reviewing other crates.

supply-chain/audits.toml

@@ -10,6 +10,16 @@ Well documented invariants, good assertions for those invariants in unsafe code,
 and tested with MIRI to boot. LGTM.
 """
 
+[[audits.atty]]
+who = "Alex Crichton <alex@alexcrichton.com>"
+criteria = "safe-to-deploy"
+version = "0.2.14"
+notes = """
+Contains only unsafe code for what this crate's purpose is and only accesses
+the environment's terminal information when asked. Does its stated purpose and
+no more.
+"""
+
 [[audits.backtrace]]
 who = "Alex Crichton <alex@alexcrichton.com>"
 criteria = "safe-to-deploy"
@@ -22,6 +32,18 @@ criteria = "safe-to-deploy"
 version = "3.9.1"
 notes = "I am the author of this crate."
 
+[[audits.cap-rand]]
+who = "Alex Crichton <alex@alexcrichton.com>"
+criteria = "safe-to-deploy"
+version = "0.25.0"
+notes = "The Bytecode Alliance is the author of this crate"
+
+[[audits.cap-time-ext]]
+who = "Alex Crichton <alex@alexcrichton.com>"
+criteria = "safe-to-deploy"
+version = "0.25.0"
+notes = "The Bytecode Alliance is the author of this crate."
+
 [[audits.cc]]
 who = "Alex Crichton <alex@alexcrichton.com>"
 criteria = "safe-to-deploy"
@@ -34,6 +56,28 @@ criteria = "safe-to-deploy"
 version = "1.0.0"
 notes = "I am the author of this crate."
 
+[[audits.file-per-thread-logger]]
+who = "Alex Crichton <alex@alexcrichton.com>"
+criteria = "safe-to-deploy"
+version = "0.1.5"
+notes = """
+Contains no unsafe code but does write log files to the filesystem. Log files
+are only created when requested by the application, however, and otherwise
+only does its stated purpose.
+"""
+
+[[audits.heck]]
+who = "Alex Crichton <alex@alexcrichton.com>"
+criteria = "safe-to-deploy"
+version = "0.4.0"
+notes = "Contains `forbid_unsafe` and only uses `std::fmt` from the standard library. Otherwise only contains string manipulation."
+
+[[audits.is-terminal]]
+who = "Alex Crichton <alex@alexcrichton.com>"
+criteria = "safe-to-deploy"
+version = "0.3.0"
+notes = "Contains only unsafe code for interacting with the crate's intended purpose."
+
 [[audits.libm]]
 who = "Alex Crichton <alex@alexcrichton.com>"
 criteria = "safe-to-deploy"
@@ -44,6 +88,16 @@ but also contains some other minor fixes as well. Everything looks A-OK and
 as expected.
 """
 
+[[audits.memfd]]
+who = "Alex Crichton <alex@alexcrichton.com>"
+criteria = "safe-to-deploy"
+version = "0.6.1"
+notes = """
+Does not interact with the system in any way than otherwise instructed to.
+Contains unsafe blocks but are encapsulated and required for the operation at
+hand.
+"""
+
 [[audits.regalloc2]]
 who = "Jamey Sharp <jsharp@fastly.com>"
 criteria = "safe-to-deploy"

supply-chain/config.toml

@@ -54,10 +54,6 @@ criteria = "safe-to-deploy"
 version = "0.1.53"
 criteria = "safe-to-deploy"
 
-[[exemptions.atty]]
-version = "0.2.14"
-criteria = "safe-to-deploy"
-
 [[exemptions.autocfg]]
 version = "0.1.8"
 criteria = "safe-to-deploy"
@@ -106,10 +102,6 @@ criteria = "safe-to-deploy"
 version = "0.25.0"
 criteria = "safe-to-deploy"
 
-[[exemptions.cap-rand]]
-version = "0.25.0"
-criteria = "safe-to-deploy"
-
 [[exemptions.cap-std]]
 version = "0.25.0"
 criteria = "safe-to-deploy"
@@ -118,10 +110,6 @@ criteria = "safe-to-deploy"
 version = "0.25.0"
 criteria = "safe-to-run"
 
-[[exemptions.cap-time-ext]]
-version = "0.25.0"
-criteria = "safe-to-deploy"
-
 [[exemptions.capstone]]
 version = "0.9.0"
 criteria = "safe-to-deploy"
@@ -326,10 +314,6 @@ criteria = "safe-to-deploy"
 version = "0.10.1"
 criteria = "safe-to-deploy"
 
-[[exemptions.file-per-thread-logger]]
-version = "0.1.5"
-criteria = "safe-to-deploy"
-
 [[exemptions.filecheck]]
 version = "0.5.0"
 criteria = "safe-to-deploy"
@@ -382,10 +366,6 @@ criteria = "safe-to-run"
 version = "0.12.1"
 criteria = "safe-to-deploy"
 
-[[exemptions.heck]]
-version = "0.4.0"
-criteria = "safe-to-deploy"
-
 [[exemptions.hermit-abi]]
 version = "0.1.19"
 criteria = "safe-to-deploy"
@@ -438,10 +418,6 @@ criteria = "safe-to-deploy"
 version = "2.5.0"
 criteria = "safe-to-deploy"
 
-[[exemptions.is-terminal]]
-version = "0.3.0"
-criteria = "safe-to-deploy"
-
 [[exemptions.is_ci]]
 version = "1.1.1"
 criteria = "safe-to-deploy"
@@ -526,10 +502,6 @@ criteria = "safe-to-deploy"
 version = "2.5.0"
 criteria = "safe-to-deploy"
 
-[[exemptions.memfd]]
-version = "0.6.1"
-criteria = "safe-to-deploy"
-
 [[exemptions.memmap2]]
 version = "0.2.3"
 criteria = "safe-to-deploy"