notifications: log directly when setting auto install mode

Author: djc

src/config.rs

@@ -8,7 +8,7 @@ use anyhow::{Context, Result, anyhow, bail};
 use serde::Deserialize;
 use thiserror::Error as ThisError;
 use tokio_stream::StreamExt;
-use tracing::{error, trace};
+use tracing::{error, info, trace};
 
 use crate::dist::AutoInstallMode;
 use crate::{
@@ -376,7 +376,7 @@ impl<'a> Cfg<'a> {
             s.auto_install = Some(mode);
             Ok(())
         })?;
-        (self.notify_handler)(Notification::SetAutoInstall(mode.as_str()));
+        info!("setting auto install mode to {}", mode.as_str());
         Ok(())
     }
 

src/notifications.rs

@@ -26,7 +26,6 @@ pub(crate) enum Notification<'a> {
     /// member, but the notification callback is already narrowed to
     /// utils::notifications by the time tar unpacking is called.
     SetDefaultBufferSize(usize),
-    SetAutoInstall(&'a str),
     SetDefaultToolchain(Option<&'a ToolchainName>),
     SetOverrideToolchain(&'a Path, &'a str),
     SetProfile(&'a str),
@@ -70,8 +69,7 @@ impl Notification<'_> {
             | ReadMetadataVersion(_)
             | InstalledToolchain(_)
             | UpdateHashMatches => NotificationLevel::Debug,
-            SetAutoInstall(_)
-            | SetDefaultToolchain(_)
+            SetDefaultToolchain(_)
             | SetOverrideToolchain(_, _)
             | SetProfile(_)
             | SetSelfUpdate(_)
@@ -108,7 +106,6 @@ impl Display for Notification<'_> {
             DownloadDataReceived(data, _) => write!(f, "received some data of size {}", data.len()),
             DownloadFinished(_) => write!(f, "download finished"),
             DownloadFailed(_) => write!(f, "download failed"),
-            SetAutoInstall(auto) => write!(f, "auto install set to '{auto}'"),
             SetDefaultToolchain(None) => write!(f, "default toolchain unset"),
             SetDefaultToolchain(Some(name)) => write!(f, "default toolchain set to '{name}'"),
             SetOverrideToolchain(path, name) => write!(