cargo build error

[pavel-pimenov]

F:\git\pdblister\src>cargo build Updating crates.io index Downloaded rand v0.3.23 Downloaded libc v0.2.68 Downloaded rand v0.4.6 Downloaded winapi v0.3.8 Compiling winapi v0.3.8 Compiling libc v0.2.68 Compiling rand v0.4.6 Compiling rand v0.3.23 Compiling pdblister v0.1.0 (F:\git\pdblister) warning: trait objects without an explicit dyn are deprecated --> src\main.rs:275:54 | 275 | Result<(File, MZHeader, PEHeader, u32, u32), Boxstd::error::Error> | ^^^^^^^^^^^^^^^^^ help: use dyn: dyn std::error::Error | = note: #[warn(bare_trait_objects)] on by default warning: trait objects without an explicit dyn are deprecated --> src\main.rs:313:57 | 313 | fn get_file_path(filename: &Path) -> Result<String, Boxstd::error::Error> | ^^^^^^^^^^^^^^^^^ help: use dyn: dyn std::error::Error warning: trait objects without an explicit dyn are deprecated --> src\main.rs:340:51 | 340 | fn get_pdb(filename: &Path) -> Result<String, Boxstd::error::Error> | ^^^^^^^^^^^^^^^^^ help: use dyn: dyn std::error::Error Finished dev [unoptimized + debuginfo] target(s) in 39.77s