Include cmdline in error display; show cargo install progress

Cargo.lock

@@ -2345,6 +2345,7 @@ dependencies = [
  "camino",
  "once_cell",
  "walkdir",
+ "which",
 ]
 
 [[package]]

rslib/process/src/lib.rs

@@ -12,14 +12,14 @@ use snafu::Snafu;
 
 #[derive(Debug, Snafu)]
 pub enum Error {
+    #[snafu(display("Failed to execute: {cmdline}"))]
     DidNotExecute {
         cmdline: String,
         source: std::io::Error,
     },
-    ReturnedError {
-        cmdline: String,
-        code: Option<i32>,
-    },
+    #[snafu(display("Fail with code {code:?}: {cmdline}"))]
+    ReturnedError { cmdline: String, code: Option<i32> },
+    #[snafu(display("Couldn't decode stdout/stderr as utf8"))]
     InvalidUtf8 {
         cmdline: String,
         source: FromUtf8Error,
@@ -110,13 +110,12 @@ mod test {
 
     #[test]
     fn test_run() {
-        assert!(matches!(
-            Command::run(["fakefake", "1", "2"]),
-            Err(Error::DidNotExecute {
-                cmdline,
-                ..
-            }) if cmdline == "fakefake 1 2"
-        ));
+        assert_eq!(
+            Command::run(["fakefake", "1", "2"])
+                .unwrap_err()
+                .to_string(),
+            "Failed to execute: fakefake 1 2"
+        );
         #[cfg(not(windows))]
         assert!(matches!(
             Command::new("false").ensure_success(),

tools/minilints/Cargo.toml

@@ -15,3 +15,4 @@ anyhow = "1.0.71"
 camino = "1.1.4"
 once_cell = "1.17.1"
 walkdir = "2.3.3"
+which = "4.4.0"

tools/minilints/src/main.rs

@@ -198,13 +198,13 @@ impl LintContext {
 }
 
 fn check_cargo_deny() -> Result<()> {
-    Command::run(["cargo", "install", "-q", "cargo-deny@0.13.5"])?;
+    Command::run(["cargo", "install", "cargo-deny@0.13.5"])?;
     Command::run(["cargo", "deny", "check", "-A", "duplicate"])?;
     Ok(())
 }
 
 fn update_hakari() -> Result<()> {
-    Command::run(["cargo", "install", "-q", "cargo-hakari@0.9.23"])?;
+    Command::run(["cargo", "install", "cargo-hakari@0.9.23"])?;
     Command::run(["cargo", "hakari", "generate"])?;
     Ok(())
 }
@@ -257,7 +257,9 @@ fn check_for_unstaged_changes() {
 }
 
 fn generate_licences() -> Result<String> {
-    Command::run(["cargo", "install", "-q", "cargo-license@0.5.1"])?;
+    if which::which("cargo-license").is_err() {
+        Command::run(["cargo", "install", "cargo-license@0.5.1"])?;
+    }
     let output = Command::run_with_output([
         "cargo-license",
         "--features",