Cargo.toml: Update thiserror to latest version

Along with this there are some code changes to accomodate breaking
changes in thiserror crate with newer version.

Signed-off-by: Jinank Jain <jinankjain@microsoft.com>

Author: jinankjain

Cargo.toml

@@ -17,7 +17,7 @@ log = "0.4.17"
 serde = { version = "1.0.151", features = ["rc"] }
 serde_derive = "1.0.149"
 serde_json = "1.0.93"
-thiserror = "1.0.38"
+thiserror = "2.0.12"
 vfio-bindings = { version = "0.4.0", features = ["fam-wrappers"] }
 vm-memory = { version = "0.16.0", features = ["backend-mmap", "backend-atomic"] }
 vmm-sys-util = "0.13.0"

examples/gpio/pci.rs

@@ -304,9 +304,9 @@ pub enum Error {
     BarInUse(PciBarIndex),
     #[error("64bit bar {0} already used (requires two regs)")]
     BarInUse64(PciBarIndex),
-    #[error("bar {0} invalid, max {}", NUM_BAR_REGS - 1)]
+    #[error("bar {bar_index} invalid, max {max}", bar_index = .0, max = NUM_BAR_REGS - 1)]
     BarInvalid(PciBarIndex),
-    #[error("64bitbar {0} invalid, requires two regs, max {}", ROM_BAR_IDX - 1)]
+    #[error("64bitbar {bar_index} invalid, requires two regs, {max}", bar_index = .0, max = ROM_BAR_IDX - 1)]
     BarInvalid64(PciBarIndex),
     #[error("expansion rom bar must be a memory region")]
     BarInvalidRomType,