Update cargo to 2024 edition (#842)

Some effects of this change:
- New formatting changes across many files. No functionality changes
should occur from that.
- Calls to `set_env` are considered unsafe, since this only happens in
tests we wrap them in `unsafe` blocks

codex-rs/execpolicy/tests/bad.rs

@@ -1,5 +1,5 @@
-use codex_execpolicy::get_default_policy;
 use codex_execpolicy::NegativeExamplePassedCheck;
+use codex_execpolicy::get_default_policy;
 
 #[test]
 fn verify_everything_in_bad_list_is_rejected() {

codex-rs/execpolicy/tests/cp.rs

@@ -1,6 +1,5 @@
 extern crate codex_execpolicy;
 
-use codex_execpolicy::get_default_policy;
 use codex_execpolicy::ArgMatcher;
 use codex_execpolicy::ArgType;
 use codex_execpolicy::Error;
@@ -10,6 +9,7 @@ use codex_execpolicy::MatchedExec;
 use codex_execpolicy::Policy;
 use codex_execpolicy::Result;
 use codex_execpolicy::ValidExec;
+use codex_execpolicy::get_default_policy;
 
 fn setup() -> Policy {
     get_default_policy().expect("failed to load default policy")

codex-rs/execpolicy/tests/good.rs

@@ -1,5 +1,5 @@
-use codex_execpolicy::get_default_policy;
 use codex_execpolicy::PositiveExampleFailedCheck;
+use codex_execpolicy::get_default_policy;
 
 #[test]
 fn verify_everything_in_good_list_is_allowed() {

codex-rs/execpolicy/tests/head.rs

@@ -1,4 +1,3 @@
-use codex_execpolicy::get_default_policy;
 use codex_execpolicy::ArgMatcher;
 use codex_execpolicy::ArgType;
 use codex_execpolicy::Error;
@@ -9,6 +8,7 @@ use codex_execpolicy::MatchedOpt;
 use codex_execpolicy::Policy;
 use codex_execpolicy::Result;
 use codex_execpolicy::ValidExec;
+use codex_execpolicy::get_default_policy;
 
 extern crate codex_execpolicy;
 

codex-rs/execpolicy/tests/ls.rs

@@ -1,6 +1,5 @@
 extern crate codex_execpolicy;
 
-use codex_execpolicy::get_default_policy;
 use codex_execpolicy::ArgType;
 use codex_execpolicy::Error;
 use codex_execpolicy::ExecCall;
@@ -10,6 +9,7 @@ use codex_execpolicy::MatchedFlag;
 use codex_execpolicy::Policy;
 use codex_execpolicy::Result;
 use codex_execpolicy::ValidExec;
+use codex_execpolicy::get_default_policy;
 
 fn setup() -> Policy {
     get_default_policy().expect("failed to load default policy")

codex-rs/execpolicy/tests/parse_sed_command.rs

@@ -1,5 +1,5 @@
-use codex_execpolicy::parse_sed_command;
 use codex_execpolicy::Error;
+use codex_execpolicy::parse_sed_command;
 
 #[test]
 fn parses_simple_print_command() {

codex-rs/execpolicy/tests/pwd.rs

@@ -2,7 +2,6 @@ extern crate codex_execpolicy;
 
 use std::vec;
 
-use codex_execpolicy::get_default_policy;
 use codex_execpolicy::Error;
 use codex_execpolicy::ExecCall;
 use codex_execpolicy::MatchedExec;
@@ -10,6 +9,7 @@ use codex_execpolicy::MatchedFlag;
 use codex_execpolicy::Policy;
 use codex_execpolicy::PositionalArg;
 use codex_execpolicy::ValidExec;
+use codex_execpolicy::get_default_policy;
 
 fn setup() -> Policy {
     get_default_policy().expect("failed to load default policy")

codex-rs/execpolicy/tests/sed.rs

@@ -1,6 +1,5 @@
 extern crate codex_execpolicy;
 
-use codex_execpolicy::get_default_policy;
 use codex_execpolicy::ArgType;
 use codex_execpolicy::Error;
 use codex_execpolicy::ExecCall;
@@ -11,6 +10,7 @@ use codex_execpolicy::MatchedOpt;
 use codex_execpolicy::Policy;
 use codex_execpolicy::Result;
 use codex_execpolicy::ValidExec;
+use codex_execpolicy::get_default_policy;
 
 fn setup() -> Policy {
     get_default_policy().expect("failed to load default policy")