When I follow the build instructions and run the executable, I get the following panic. This is on Ubuntu 21.04 with Rust 1.58.
thread 'main' panicked at 'attempted to leave type `linked_hash_map::Node<primitives::hash::H256, db::kv::transaction::KeyState<chain::block_header::BlockHeader>>` uninitialized, which is invalid', /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/linked-hash-map-0.4.2/src/lib.rs:174:52
stack backtrace:
0: rust_begin_unwind
at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:498:5
1: core::panicking::panic_fmt
at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/panicking.rs:107:14
2: core::panicking::panic
at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/panicking.rs:48:5
3: core::mem::uninitialized
at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/mem/mod.rs:676:9
4: linked_hash_map::LinkedHashMap<K,V,S>::ensure_guard_node
at /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/linked-hash-map-0.4.2/src/lib.rs:174:52
5: linked_hash_map::LinkedHashMap<K,V,S>::insert
at /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/linked-hash-map-0.4.2/src/lib.rs:305:9
6: lru_cache::LruCache<K,V,S>::insert
at /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/lru-cache-0.1.1/src/lib.rs:119:23
7: <db::kv::cachedb::CacheDatabase<T> as db::kv::db::KeyValueDatabase>::write
at ./db/src/kv/cachedb.rs:27:6
8: db::block_chain_db::BlockChainDatabase<T>::insert
at ./db/src/block_chain_db.rs:306:3
9: <db::block_chain_db::BlockChainDatabase<T> as storage::block_chain::BlockChain>::insert
at ./db/src/block_chain_db.rs:684:3
10: pzec::util::init_db
at ./pzec/util.rs:34:4
11: pzec::commands::start::start
at ./pzec/commands/start.rs:87:2
12: pzec::run
at ./pzec/main.rs:71:8
13: pzec::main
at ./pzec/main.rs:48:20
14: core::ops::function::FnOnce::call_once
at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/ops/function.rs:227:5
When I follow the build instructions and run the executable, I get the following panic. This is on Ubuntu 21.04 with Rust 1.58.