Update nitrokey dependency to 0.6.0

nitrokey 0.6.0 introduced the SerialNumber struct (instead of
representing serial numbers as strings). We no longer have to manually
format the serial number as SerialNumber implements Display.

CHANGELOG.md

@@ -8,7 +8,7 @@ Unreleased
  - Made the `--verbose` and `--model` options global
 - Removed vendored dependencies and moved source code into repository
  root
-- Bumped `nitrokey` dependency to `0.5.1`
+- Bumped `nitrokey` dependency to `0.6.0`
 
 
 0.3.1

Cargo.toml

@@ -49,7 +49,7 @@ version = "0.4.0"
 version = "0.2"
 
 [dependencies.nitrokey]
-version = "0.5.1"
+version = "0.6"
 
 [dependencies.structopt]
 version = "0.3.7"

src/commands.rs

@@ -343,7 +343,7 @@ fn print_status(
  ctx,
  r#"Status:
  model: {model}
- serial number: 0x{id}
+ serial number: {id}
  firmware version: {fwv}
  user retry count: {urc}
  admin retry count: {arc}"#,
@@ -393,7 +393,7 @@ pub fn list(ctx: &mut args::ExecCtx<'_>, no_connect: bool) -> Result<()> {
  .map(|m| m.to_string())
  .unwrap_or_else(|| "unknown".into());
  let serial_number = match device_info.serial_number {
- Some(serial_number) => format!("0x{}", serial_number),
+ Some(serial_number) => serial_number.to_string(),
  None => {
  // Storage devices do not have the serial number present in
  // the device information. We have to connect to them to
@@ -402,7 +402,7 @@ pub fn list(ctx: &mut args::ExecCtx<'_>, no_connect: bool) -> Result<()> {
  "N/A".to_string()
  } else {
  let device = manager.connect_path(device_info.path.clone())?;
- format!("0x{}", device.get_serial_number()?)
+ device.get_serial_number()?.to_string()
  }
  }
  };

src/pinentry.rs

@@ -54,7 +54,7 @@ pub trait SecretEntry: fmt::Debug {
 pub struct PinEntry {
  pin_type: PinType,
  model: nitrokey::Model,
- serial: String,
+ serial: nitrokey::SerialNumber,
 }
 
 impl PinEntry {
@@ -127,7 +127,7 @@ impl SecretEntry for PinEntry {
 #[derive(Debug)]
 pub struct PwdEntry {
  model: nitrokey::Model,
- serial: String,
+ serial: nitrokey::SerialNumber,
 }
 
 impl PwdEntry {