Lint: Use next instead of nth(0).

  - https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero

5 files changed, 6 insertions, 6 deletions

diff --git a/sq/build.rs b/sq/build.rs
index 5cc59cc0..49d55740 100644
--- a/sq/build.rs
+++ b/sq/build.rs
@@ -87,7 +87,7 @@ fn dump_help(sink: &mut dyn io::Write,
             if line.chars().nth(4).map(|c| ! c.is_ascii_whitespace())
                 .unwrap_or(false)
             {
-                line.trim_start().split(" ").nth(0)
+                line.trim_start().split(" ").next()
             } else {
                 None
             }
diff --git a/sq/src/commands/inspect.rs b/sq/src/commands/inspect.rs
index e4be6883..fa990951 100644
--- a/sq/src/commands/inspect.rs
+++ b/sq/src/commands/inspect.rs
@@ -142,7 +142,7 @@ fn inspect_cert(policy: &dyn Policy,
     writeln!(output)?;
     writeln!(output, "    Fingerprint: {}", cert.fingerprint())?;
     inspect_revocation(output, "", cert.revocation_status(policy, None))?;
-    inspect_key(policy, output, "", cert.keys().nth(0).unwrap(),
+    inspect_key(policy, output, "", cert.keys().next().unwrap(),
                 print_certifications)?;
     writeln!(output)?;
 
diff --git a/sq/src/commands/key.rs b/sq/src/commands/key.rs
index daba78df..5dd45809 100644
--- a/sq/src/commands/key.rs
+++ b/sq/src/commands/key.rs
@@ -357,7 +357,7 @@ fn adopt(config: Config, m: &ArgMatches) -> Result<()> {
                         &cert.primary_key(),
                         &key).is_ok()
                 })
-                .nth(0)
+                .next()
                 .map(|sig| SignatureBuilder::from(sig.clone()))
                 .unwrap_or_else(|| {
                     SignatureBuilder::new(SignatureType::PrimaryKeyBinding)
diff --git a/sq/src/commands/keyring.rs b/sq/src/commands/keyring.rs
index 51c5dd13..81fce15e 100644
--- a/sq/src/commands/keyring.rs
+++ b/sq/src/commands/keyring.rs
@@ -254,7 +254,7 @@ fn list(config: Config,
 
         // As a last resort, pick the first user id.
         if primary_uid.is_none() {
-            if let Some(primary) = cert.userids().nth(0) {
+            if let Some(primary) = cert.userids().next() {
                 println!(" {}", String::from_utf8_lossy(primary.value()));
                 primary_uid = Some(primary.value().to_vec());
             }
@@ -296,7 +296,7 @@ fn split(input: &mut (dyn io::Read + Sync + Send), prefix: &str, binary: bool)
 
         // Try to be more helpful by including the first userid in the
         // filename.
-        let mut sink = if let Some(f) = cert.userids().nth(0)
+        let mut sink = if let Some(f) = cert.userids().next()
             .and_then(|uid| uid.email().unwrap_or(None))
             .and_then(to_filename_fragment)
         {
diff --git a/sq/tests/sq-sign.rs b/sq/tests/sq-sign.rs
index d9253124..0efef3ab 100644
--- a/sq/tests/sq-sign.rs
+++ b/sq/tests/sq-sign.rs
@@ -278,7 +278,7 @@ fn sq_sign_append_on_compress_then_sign() {
     // message by foot.
     let tsk = Cert::from_file(&artifact("keys/dennis-simon-anton-private.pgp"))
         .unwrap();
-    let key = tsk.keys().with_policy(p, None).for_signing().nth(0).unwrap().key();
+    let key = tsk.keys().with_policy(p, None).for_signing().next().unwrap().key();
     let sec = match key.optional_secret() {
         Some(SecretKeyMaterial::Unencrypted(ref u)) => u.clone(),
         _ => unreachable!(),