[INFO] crate lmdb-rs 0.7.6 is already in cache
[INFO] extracting crate lmdb-rs 0.7.6 into work/ex/clippy-test-run/sources/stable/reg/lmdb-rs/0.7.6
[INFO] extracting crate lmdb-rs 0.7.6 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/lmdb-rs/0.7.6
[INFO] validating manifest of lmdb-rs-0.7.6 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lmdb-rs-0.7.6 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lmdb-rs-0.7.6
[INFO] removed path dependency liblmdb-sys from lmdb-rs-0.7.6
[INFO] finished frobbing lmdb-rs-0.7.6
[INFO] frobbed toml for lmdb-rs-0.7.6 written to work/ex/clippy-test-run/sources/stable/reg/lmdb-rs/0.7.6/Cargo.toml
[INFO] started frobbing lmdb-rs-0.7.6
[INFO] removed path dependency liblmdb-sys from lmdb-rs-0.7.6
[INFO] finished frobbing lmdb-rs-0.7.6
[INFO] frobbed toml for lmdb-rs-0.7.6 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/lmdb-rs/0.7.6/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting lmdb-rs-0.7.6 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/lmdb-rs/0.7.6:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 91ad68134bbe0149b7006fe9f191a609caf3113a0ce62c741bf1b1dfce2f58c6
[INFO] running `"docker" "start" "-a" "91ad68134bbe0149b7006fe9f191a609caf3113a0ce62c741bf1b1dfce2f58c6"`
[INFO] [stderr]    Compiling liblmdb-sys v0.2.2
[INFO] [stderr]     Checking lmdb-rs v0.7.6 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:400:20
[INFO] [stderr]     |
[INFO] [stderr] 400 |         Database { handle: handle, txn: txn }
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^ help: replace it with: `handle`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:400:36
[INFO] [stderr]     |
[INFO] [stderr] 400 |         Database { handle: handle, txn: txn }
[INFO] [stderr]     |                                    ^^^^^^^^ help: replace it with: `txn`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:724:13
[INFO] [stderr]     |
[INFO] [stderr] 724 |             is_readonly: is_readonly,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `is_readonly`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:898:34
[INFO] [stderr]     |
[INFO] [stderr] 898 |         Ok(DbHandle {handle: db, flags: flags})
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: replace it with: `flags`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:904:34
[INFO] [stderr]     |
[INFO] [stderr] 904 |         Ok(DbHandle {handle: db, flags: flags})
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: replace it with: `flags`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:986:13
[INFO] [stderr]     |
[INFO] [stderr] 986 |             flags: flags,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `flags`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:988:13
[INFO] [stderr]     |
[INFO] [stderr] 988 |             env: env,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `env`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1311:13
[INFO] [stderr]      |
[INFO] [stderr] 1311 |             txn: txn,
[INFO] [stderr]      |             ^^^^^^^^ help: replace it with: `txn`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1312:13
[INFO] [stderr]      |
[INFO] [stderr] 1312 |             db: db,
[INFO] [stderr]      |             ^^^^^^ help: replace it with: `db`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1652:13
[INFO] [stderr]      |
[INFO] [stderr] 1652 |             inner: inner,
[INFO] [stderr]      |             ^^^^^^^^^^^^ help: replace it with: `inner`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1653:13
[INFO] [stderr]      |
[INFO] [stderr] 1653 |             has_data: has_data,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `has_data`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1654:13
[INFO] [stderr]      |
[INFO] [stderr] 1654 |             cursor: cursor,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^ help: replace it with: `cursor`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1704:13
[INFO] [stderr]      |
[INFO] [stderr] 1704 |             end_inclusive: end_inclusive,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `end_inclusive`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:400:20
[INFO] [stderr]     |
[INFO] [stderr] 400 |         Database { handle: handle, txn: txn }
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^ help: replace it with: `handle`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:400:36
[INFO] [stderr]     |
[INFO] [stderr] 400 |         Database { handle: handle, txn: txn }
[INFO] [stderr]     |                                    ^^^^^^^^ help: replace it with: `txn`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:724:13
[INFO] [stderr]     |
[INFO] [stderr] 724 |             is_readonly: is_readonly,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `is_readonly`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:898:34
[INFO] [stderr]     |
[INFO] [stderr] 898 |         Ok(DbHandle {handle: db, flags: flags})
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: replace it with: `flags`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:904:34
[INFO] [stderr]     |
[INFO] [stderr] 904 |         Ok(DbHandle {handle: db, flags: flags})
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: replace it with: `flags`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:986:13
[INFO] [stderr]     |
[INFO] [stderr] 986 |             flags: flags,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `flags`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/core.rs:988:13
[INFO] [stderr]     |
[INFO] [stderr] 988 |             env: env,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `env`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1311:13
[INFO] [stderr]      |
[INFO] [stderr] 1311 |             txn: txn,
[INFO] [stderr]      |             ^^^^^^^^ help: replace it with: `txn`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1312:13
[INFO] [stderr]      |
[INFO] [stderr] 1312 |             db: db,
[INFO] [stderr]      |             ^^^^^^ help: replace it with: `db`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1652:13
[INFO] [stderr]      |
[INFO] [stderr] 1652 |             inner: inner,
[INFO] [stderr]      |             ^^^^^^^^^^^^ help: replace it with: `inner`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1653:13
[INFO] [stderr]      |
[INFO] [stderr] 1653 |             has_data: has_data,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `has_data`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1654:13
[INFO] [stderr]      |
[INFO] [stderr] 1654 |             cursor: cursor,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^ help: replace it with: `cursor`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/core.rs:1704:13
[INFO] [stderr]      |
[INFO] [stderr] 1704 |             end_inclusive: end_inclusive,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `end_inclusive`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/core.rs:100:1
[INFO] [stderr]     |
[INFO] [stderr] 100 | / macro_rules! assert_state_not {
[INFO] [stderr] 101 | |     ($log:ident, $cur:expr, $exp:expr) =>
[INFO] [stderr] 102 | |         ({
[INFO] [stderr] 103 | |             let c = $cur;
[INFO] [stderr] ...   |
[INFO] [stderr] 110 | |             }})
[INFO] [stderr] 111 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/core.rs:100:1
[INFO] [stderr]     |
[INFO] [stderr] 100 | / macro_rules! assert_state_not {
[INFO] [stderr] 101 | |     ($log:ident, $cur:expr, $exp:expr) =>
[INFO] [stderr] 102 | |         ({
[INFO] [stderr] 103 | |             let c = $cur;
[INFO] [stderr] ...   |
[INFO] [stderr] 110 | |             }})
[INFO] [stderr] 111 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/tests.rs:242:29
[INFO] [stderr]     |
[INFO] [stderr] 242 |     assert!(env.set_mapsize(0x100000usize).is_ok(), "Couldn't resize map");
[INFO] [stderr]     |                             ^^^^^^^^^^^^^ help: consider: `0x0010_0000usize`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/core.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 | /         match self {
[INFO] [stderr] 149 | |             &NotFound | &KeyExists | &TxnFull |
[INFO] [stderr] 150 | |             &CursorFull | &PageFull | &Corrupted |
[INFO] [stderr] 151 | |             &Panic | &InvalidPath | &CacheError => write!(fmt, "{}", self.description()),
[INFO] [stderr] 152 | |             &StateError(ref msg) => write!(fmt, "{}", msg),
[INFO] [stderr] 153 | |             &Other(code, ref msg) => write!(fmt, "{}: {}", code, msg)
[INFO] [stderr] 154 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 148 |         match *self {
[INFO] [stderr] 149 |             NotFound | KeyExists | TxnFull |
[INFO] [stderr] 150 |             CursorFull | PageFull | Corrupted |
[INFO] [stderr] 151 |             Panic | InvalidPath | CacheError => write!(fmt, "{}", self.description()),
[INFO] [stderr] 152 |             StateError(ref msg) => write!(fmt, "{}", msg),
[INFO] [stderr] 153 |             Other(code, ref msg) => write!(fmt, "{}: {}", code, msg)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/core.rs:160:9
[INFO] [stderr]     |
[INFO] [stderr] 160 | /         match self {
[INFO] [stderr] 161 | |             &NotFound => "not found",
[INFO] [stderr] 162 | |             &KeyExists => "key exists",
[INFO] [stderr] 163 | |             &TxnFull => "txn full",
[INFO] [stderr] ...   |
[INFO] [stderr] 171 | |             &Other(_, _) => "other error",
[INFO] [stderr] 172 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 160 |         match *self {
[INFO] [stderr] 161 |             NotFound => "not found",
[INFO] [stderr] 162 |             KeyExists => "key exists",
[INFO] [stderr] 163 |             TxnFull => "txn full",
[INFO] [stderr] 164 |             CursorFull => "cursor full",
[INFO] [stderr] 165 |             PageFull => "page full",
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `core::EnvBuilder`
[INFO] [stderr]    --> src/core.rs:566:5
[INFO] [stderr]     |
[INFO] [stderr] 566 | /     pub fn new() -> EnvBuilder {
[INFO] [stderr] 567 | |         EnvBuilder {
[INFO] [stderr] 568 | |             flags: EnvCreateFlags::empty(),
[INFO] [stderr] 569 | |             max_readers: None,
[INFO] [stderr] ...   |
[INFO] [stderr] 573 | |         }
[INFO] [stderr] 574 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 565 | impl Default for core::EnvBuilder {
[INFO] [stderr] 566 |     fn default() -> Self {
[INFO] [stderr] 567 |         Self::new()
[INFO] [stderr] 568 |     }
[INFO] [stderr] 569 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a pointer
[INFO] [stderr]    --> src/core.rs:614:49
[INFO] [stderr]     |
[INFO] [stderr] 614 |             let p_env: *mut *mut ffi::MDB_env = std::mem::transmute(&env);
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&env as *const *mut ffi::MDB_env as *mut *mut ffi::MDB_env`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_transmute)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/core.rs:615:13
[INFO] [stderr]     |
[INFO] [stderr] 615 |             let _ = try_mdb!(ffi::mdb_env_create(p_env));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/core.rs:634:13
[INFO] [stderr]     |
[INFO] [stderr] 634 |             let _ = try!(EnvBuilder::check_path(&path, self.flags));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a type (`*mut ffi::MDB_env`) to itself
[INFO] [stderr]    --> src/core.rs:645:31
[INFO] [stderr]     |
[INFO] [stderr] 645 |             ffi::mdb_env_open(mem::transmute(env), c_path.as_ref().as_ptr(), self.flags.bits(),
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] error: calls to `std::mem::drop` with a value that implements Copy. Dropping a copy leaves the original intact.
[INFO] [stderr]    --> src/core.rs:649:9
[INFO] [stderr]     |
[INFO] [stderr] 649 |         drop(self);
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::drop_copy)] on by default
[INFO] [stderr] note: argument has type core::EnvBuilder
[INFO] [stderr]    --> src/core.rs:649:14
[INFO] [stderr]     |
[INFO] [stderr] 649 |         drop(self);
[INFO] [stderr]     |              ^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_copy
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a type (`*mut ffi::MDB_env`) to itself
[INFO] [stderr]    --> src/core.rs:655:45
[INFO] [stderr]     |
[INFO] [stderr] 655 |                 unsafe { ffi::mdb_env_close(mem::transmute(env)); }
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/core.rs:682:40
[INFO] [stderr]     |
[INFO] [stderr] 682 |                     fs::create_dir_all(path.as_ref().clone()).map_err(|e| {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 682 |                     fs::create_dir_all(&(*path.as_ref()).clone()).map_err(|e| {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 682 |                     fs::create_dir_all(&std::path::Path::clone(path.as_ref())).map_err(|e| {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/core.rs:700:16
[INFO] [stderr]     |
[INFO] [stderr] 700 |             if self.0 != ptr::null_mut() {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_null)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `new` usually return `Self`
[INFO] [stderr]    --> src/core.rs:716:5
[INFO] [stderr]     |
[INFO] [stderr] 716 | /     pub fn new() -> EnvBuilder {
[INFO] [stderr] 717 | |         EnvBuilder::new()
[INFO] [stderr] 718 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_ret_no_self)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/core.rs:854:21
[INFO] [stderr]     |
[INFO] [stderr] 854 |                 let ref cell = *guard;
[INFO] [stderr]     |                 ----^^^^^^^^---------- help: try: `let cell = &(*guard);`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/core.rs:868:35
[INFO] [stderr]     |
[INFO] [stderr] 868 |                 let opt_name = if db_name.len() > 0 {Some(db_name)} else {None};
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!db_name.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/core.rs:916:21
[INFO] [stderr]     |
[INFO] [stderr] 916 |                 let ref cell = *guard;
[INFO] [stderr]     |                 ----^^^^^^^^---------- help: try: `let cell = &(*guard);`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1350:21
[INFO] [stderr]      |
[INFO] [stderr] 1350 |     pub fn to_first(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                     ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1355:20
[INFO] [stderr]      |
[INFO] [stderr] 1355 |     pub fn to_last(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                    ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1360:38
[INFO] [stderr]      |
[INFO] [stderr] 1360 |     pub fn to_key<'k, K: ToMdbValue>(&mut self, key: &'k K) -> MdbResult<()> {
[INFO] [stderr]      |                                      ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1366:42
[INFO] [stderr]      |
[INFO] [stderr] 1366 |     pub fn to_gte_key<'k, K: ToMdbValue>(&mut self, key: &'k K) -> MdbResult<()> {
[INFO] [stderr]      |                                          ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1373:26
[INFO] [stderr]      |
[INFO] [stderr] 1373 |     pub fn to_item<K, V>(&mut self, key: &K, value: & V) -> MdbResult<()> where K: ToMdbValue, V: ToMdbValue {
[INFO] [stderr]      |                          ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1378:30
[INFO] [stderr]      |
[INFO] [stderr] 1378 |     pub fn to_gte_item<K, V>(&mut self, key: &K, value: & V) -> MdbResult<()> where K: ToMdbValue, V: ToMdbValue {
[INFO] [stderr]      |                              ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1384:24
[INFO] [stderr]      |
[INFO] [stderr] 1384 |     pub fn to_next_key(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                        ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1389:25
[INFO] [stderr]      |
[INFO] [stderr] 1389 |     pub fn to_next_item(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                         ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1395:24
[INFO] [stderr]      |
[INFO] [stderr] 1395 |     pub fn to_prev_key(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                        ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1400:25
[INFO] [stderr]      |
[INFO] [stderr] 1400 |     pub fn to_prev_item(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                         ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1405:26
[INFO] [stderr]      |
[INFO] [stderr] 1405 |     pub fn to_first_item(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                          ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1410:25
[INFO] [stderr]      |
[INFO] [stderr] 1410 |     pub fn to_last_item(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                         ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a pointer
[INFO] [stderr]     --> src/core.rs:1448:63
[INFO] [stderr]      |
[INFO] [stderr] 1448 |             ffi::mdb_cmp(self.txn.handle, self.db, &mut kval, mem::transmute(other))
[INFO] [stderr]      |                                                               ^^^^^^^^^^^^^^^^^^^^^ help: try: `other as *const core::MdbValue<'_> as *mut ffi::MDB_val`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a pointer
[INFO] [stderr]     --> src/core.rs:1867:27
[INFO] [stderr]      |
[INFO] [stderr] 1867 |             MdbValue::new(mem::transmute(data), mem::size_of::<T>())
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^^^^^^^ help: try: `data as *const T as *const libc::c_void`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn to_mdb_value<'a>(&'a self) -> MdbValue<'a>;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 39 | |         unsafe {
[INFO] [stderr] 40 | |             MdbValue::new(std::mem::transmute(self.as_ptr()), self.len())
[INFO] [stderr] 41 | |         }
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 |             MdbValue::new(std::mem::transmute(self.as_ptr()), self.len())
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.as_ptr() as *const libc::c_void`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::transmute_ptr_to_ptr)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:49:27
[INFO] [stderr]    |
[INFO] [stderr] 49 |             MdbValue::new(std::mem::transmute(t.as_ptr()), t.len())
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `t.as_ptr() as *const libc::c_void`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 | /     fn to_mdb_value<'b>(&'b self) -> MdbValue<'b> {
[INFO] [stderr] 56 | |         unsafe {
[INFO] [stderr] 57 | |             MdbValue::new(mem::transmute(self.as_ptr()),
[INFO] [stderr] 58 | |                           self.len())
[INFO] [stderr] 59 | |         }
[INFO] [stderr] 60 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |             MdbValue::new(mem::transmute(self.as_ptr()),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.as_ptr() as *const libc::c_void`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 | /     fn to_mdb_value<'b>(&'b self) -> MdbValue<'b> {
[INFO] [stderr] 65 | |         unsafe {
[INFO] [stderr] 66 | |             MdbValue::new(std::mem::transmute(self.as_ptr()),
[INFO] [stderr] 67 | |                           self.len())
[INFO] [stderr] 68 | |         }
[INFO] [stderr] 69 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:66:27
[INFO] [stderr]    |
[INFO] [stderr] 66 |             MdbValue::new(std::mem::transmute(self.as_ptr()),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.as_ptr() as *const libc::c_void`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 | /     fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 74 | |         unsafe {
[INFO] [stderr] 75 | |             MdbValue::from_raw(self)
[INFO] [stderr] 76 | |         }
[INFO] [stderr] 77 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 | /     fn to_mdb_value<'b>(&'b self) -> MdbValue<'b> {
[INFO] [stderr] 82 | |         *self
[INFO] [stderr] 83 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:90:23
[INFO] [stderr]    |
[INFO] [stderr] 90 |             let ptr = mem::transmute(value.get_ref());
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *const u8`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:100:23
[INFO] [stderr]     |
[INFO] [stderr] 100 |             let ptr = mem::transmute(value.get_ref());
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *const u8`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a reference
[INFO] [stderr]    --> src/traits.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             std::mem::transmute(slice::from_raw_parts(value.get_ref(), value.get_size()))
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(slice::from_raw_parts(value.get_ref(), value.get_size()) as *const [libc::c_void] as *const str)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a reference
[INFO] [stderr]    --> src/traits.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |             std::mem::transmute(slice::from_raw_parts(value.get_ref(), value.get_size()))
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(slice::from_raw_parts(value.get_ref(), value.get_size()) as *const [libc::c_void] as *const [u8])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 147 |   mdb_for_primitive!(u8);
[INFO] [stderr]     |   ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut u8`
[INFO] [stderr] ...
[INFO] [stderr] 147 | mdb_for_primitive!(u8);
[INFO] [stderr]     | ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 148 |   mdb_for_primitive!(i8);
[INFO] [stderr]     |   ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut i8`
[INFO] [stderr] ...
[INFO] [stderr] 148 | mdb_for_primitive!(i8);
[INFO] [stderr]     | ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 149 |   mdb_for_primitive!(u16);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut u16`
[INFO] [stderr] ...
[INFO] [stderr] 149 | mdb_for_primitive!(u16);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 150 |   mdb_for_primitive!(i16);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut i16`
[INFO] [stderr] ...
[INFO] [stderr] 150 | mdb_for_primitive!(i16);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 151 |   mdb_for_primitive!(u32);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut u32`
[INFO] [stderr] ...
[INFO] [stderr] 151 | mdb_for_primitive!(u32);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 152 |   mdb_for_primitive!(i32);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut i32`
[INFO] [stderr] ...
[INFO] [stderr] 152 | mdb_for_primitive!(i32);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 153 |   mdb_for_primitive!(u64);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut u64`
[INFO] [stderr] ...
[INFO] [stderr] 153 | mdb_for_primitive!(u64);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 154 |   mdb_for_primitive!(i64);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut i64`
[INFO] [stderr] ...
[INFO] [stderr] 154 | mdb_for_primitive!(i64);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 155 |   mdb_for_primitive!(f32);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut f32`
[INFO] [stderr] ...
[INFO] [stderr] 155 | mdb_for_primitive!(f32);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 156 |   mdb_for_primitive!(f64);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut f64`
[INFO] [stderr] ...
[INFO] [stderr] 156 | mdb_for_primitive!(f64);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 157 |   mdb_for_primitive!(bool);
[INFO] [stderr]     |   ------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut bool`
[INFO] [stderr] ...
[INFO] [stderr] 157 | mdb_for_primitive!(bool);
[INFO] [stderr]     | ------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `lmdb-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/core.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 | /         match self {
[INFO] [stderr] 149 | |             &NotFound | &KeyExists | &TxnFull |
[INFO] [stderr] 150 | |             &CursorFull | &PageFull | &Corrupted |
[INFO] [stderr] 151 | |             &Panic | &InvalidPath | &CacheError => write!(fmt, "{}", self.description()),
[INFO] [stderr] 152 | |             &StateError(ref msg) => write!(fmt, "{}", msg),
[INFO] [stderr] 153 | |             &Other(code, ref msg) => write!(fmt, "{}: {}", code, msg)
[INFO] [stderr] 154 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 148 |         match *self {
[INFO] [stderr] 149 |             NotFound | KeyExists | TxnFull |
[INFO] [stderr] 150 |             CursorFull | PageFull | Corrupted |
[INFO] [stderr] 151 |             Panic | InvalidPath | CacheError => write!(fmt, "{}", self.description()),
[INFO] [stderr] 152 |             StateError(ref msg) => write!(fmt, "{}", msg),
[INFO] [stderr] 153 |             Other(code, ref msg) => write!(fmt, "{}: {}", code, msg)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/core.rs:160:9
[INFO] [stderr]     |
[INFO] [stderr] 160 | /         match self {
[INFO] [stderr] 161 | |             &NotFound => "not found",
[INFO] [stderr] 162 | |             &KeyExists => "key exists",
[INFO] [stderr] 163 | |             &TxnFull => "txn full",
[INFO] [stderr] ...   |
[INFO] [stderr] 171 | |             &Other(_, _) => "other error",
[INFO] [stderr] 172 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 160 |         match *self {
[INFO] [stderr] 161 |             NotFound => "not found",
[INFO] [stderr] 162 |             KeyExists => "key exists",
[INFO] [stderr] 163 |             TxnFull => "txn full",
[INFO] [stderr] 164 |             CursorFull => "cursor full",
[INFO] [stderr] 165 |             PageFull => "page full",
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `core::EnvBuilder`
[INFO] [stderr]    --> src/core.rs:566:5
[INFO] [stderr]     |
[INFO] [stderr] 566 | /     pub fn new() -> EnvBuilder {
[INFO] [stderr] 567 | |         EnvBuilder {
[INFO] [stderr] 568 | |             flags: EnvCreateFlags::empty(),
[INFO] [stderr] 569 | |             max_readers: None,
[INFO] [stderr] ...   |
[INFO] [stderr] 573 | |         }
[INFO] [stderr] 574 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 565 | impl Default for core::EnvBuilder {
[INFO] [stderr] 566 |     fn default() -> Self {
[INFO] [stderr] 567 |         Self::new()
[INFO] [stderr] 568 |     }
[INFO] [stderr] 569 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a pointer
[INFO] [stderr]    --> src/core.rs:614:49
[INFO] [stderr]     |
[INFO] [stderr] 614 |             let p_env: *mut *mut ffi::MDB_env = std::mem::transmute(&env);
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&env as *const *mut ffi::MDB_env as *mut *mut ffi::MDB_env`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_transmute)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/core.rs:615:13
[INFO] [stderr]     |
[INFO] [stderr] 615 |             let _ = try_mdb!(ffi::mdb_env_create(p_env));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/core.rs:634:13
[INFO] [stderr]     |
[INFO] [stderr] 634 |             let _ = try!(EnvBuilder::check_path(&path, self.flags));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a type (`*mut ffi::MDB_env`) to itself
[INFO] [stderr]    --> src/core.rs:645:31
[INFO] [stderr]     |
[INFO] [stderr] 645 |             ffi::mdb_env_open(mem::transmute(env), c_path.as_ref().as_ptr(), self.flags.bits(),
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] error: calls to `std::mem::drop` with a value that implements Copy. Dropping a copy leaves the original intact.
[INFO] [stderr]    --> src/core.rs:649:9
[INFO] [stderr]     |
[INFO] [stderr] 649 |         drop(self);
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::drop_copy)] on by default
[INFO] [stderr] note: argument has type core::EnvBuilder
[INFO] [stderr]    --> src/core.rs:649:14
[INFO] [stderr]     |
[INFO] [stderr] 649 |         drop(self);
[INFO] [stderr]     |              ^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_copy
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a type (`*mut ffi::MDB_env`) to itself
[INFO] [stderr]    --> src/core.rs:655:45
[INFO] [stderr]     |
[INFO] [stderr] 655 |                 unsafe { ffi::mdb_env_close(mem::transmute(env)); }
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/core.rs:682:40
[INFO] [stderr]     |
[INFO] [stderr] 682 |                     fs::create_dir_all(path.as_ref().clone()).map_err(|e| {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 682 |                     fs::create_dir_all(&(*path.as_ref()).clone()).map_err(|e| {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 682 |                     fs::create_dir_all(&std::path::Path::clone(path.as_ref())).map_err(|e| {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/core.rs:700:16
[INFO] [stderr]     |
[INFO] [stderr] 700 |             if self.0 != ptr::null_mut() {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_null)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `new` usually return `Self`
[INFO] [stderr]    --> src/core.rs:716:5
[INFO] [stderr]     |
[INFO] [stderr] 716 | /     pub fn new() -> EnvBuilder {
[INFO] [stderr] 717 | |         EnvBuilder::new()
[INFO] [stderr] 718 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_ret_no_self)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/core.rs:854:21
[INFO] [stderr]     |
[INFO] [stderr] 854 |                 let ref cell = *guard;
[INFO] [stderr]     |                 ----^^^^^^^^---------- help: try: `let cell = &(*guard);`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/core.rs:868:35
[INFO] [stderr]     |
[INFO] [stderr] 868 |                 let opt_name = if db_name.len() > 0 {Some(db_name)} else {None};
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!db_name.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/core.rs:916:21
[INFO] [stderr]     |
[INFO] [stderr] 916 |                 let ref cell = *guard;
[INFO] [stderr]     |                 ----^^^^^^^^---------- help: try: `let cell = &(*guard);`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1350:21
[INFO] [stderr]      |
[INFO] [stderr] 1350 |     pub fn to_first(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                     ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1355:20
[INFO] [stderr]      |
[INFO] [stderr] 1355 |     pub fn to_last(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                    ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1360:38
[INFO] [stderr]      |
[INFO] [stderr] 1360 |     pub fn to_key<'k, K: ToMdbValue>(&mut self, key: &'k K) -> MdbResult<()> {
[INFO] [stderr]      |                                      ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1366:42
[INFO] [stderr]      |
[INFO] [stderr] 1366 |     pub fn to_gte_key<'k, K: ToMdbValue>(&mut self, key: &'k K) -> MdbResult<()> {
[INFO] [stderr]      |                                          ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1373:26
[INFO] [stderr]      |
[INFO] [stderr] 1373 |     pub fn to_item<K, V>(&mut self, key: &K, value: & V) -> MdbResult<()> where K: ToMdbValue, V: ToMdbValue {
[INFO] [stderr]      |                          ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1378:30
[INFO] [stderr]      |
[INFO] [stderr] 1378 |     pub fn to_gte_item<K, V>(&mut self, key: &K, value: & V) -> MdbResult<()> where K: ToMdbValue, V: ToMdbValue {
[INFO] [stderr]      |                              ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1384:24
[INFO] [stderr]      |
[INFO] [stderr] 1384 |     pub fn to_next_key(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                        ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1389:25
[INFO] [stderr]      |
[INFO] [stderr] 1389 |     pub fn to_next_item(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                         ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1395:24
[INFO] [stderr]      |
[INFO] [stderr] 1395 |     pub fn to_prev_key(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                        ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1400:25
[INFO] [stderr]      |
[INFO] [stderr] 1400 |     pub fn to_prev_item(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                         ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1405:26
[INFO] [stderr]      |
[INFO] [stderr] 1405 |     pub fn to_first_item(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                          ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]     --> src/core.rs:1410:25
[INFO] [stderr]      |
[INFO] [stderr] 1410 |     pub fn to_last_item(&mut self) -> MdbResult<()> {
[INFO] [stderr]      |                         ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a pointer
[INFO] [stderr]     --> src/core.rs:1448:63
[INFO] [stderr]      |
[INFO] [stderr] 1448 |             ffi::mdb_cmp(self.txn.handle, self.db, &mut kval, mem::transmute(other))
[INFO] [stderr]      |                                                               ^^^^^^^^^^^^^^^^^^^^^ help: try: `other as *const core::MdbValue<'_> as *mut ffi::MDB_val`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a pointer
[INFO] [stderr]     --> src/core.rs:1867:27
[INFO] [stderr]      |
[INFO] [stderr] 1867 |             MdbValue::new(mem::transmute(data), mem::size_of::<T>())
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^^^^^^^ help: try: `data as *const T as *const libc::c_void`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_transmute
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn to_mdb_value<'a>(&'a self) -> MdbValue<'a>;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 39 | |         unsafe {
[INFO] [stderr] 40 | |             MdbValue::new(std::mem::transmute(self.as_ptr()), self.len())
[INFO] [stderr] 41 | |         }
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 |             MdbValue::new(std::mem::transmute(self.as_ptr()), self.len())
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.as_ptr() as *const libc::c_void`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::transmute_ptr_to_ptr)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:49:27
[INFO] [stderr]    |
[INFO] [stderr] 49 |             MdbValue::new(std::mem::transmute(t.as_ptr()), t.len())
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `t.as_ptr() as *const libc::c_void`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 | /     fn to_mdb_value<'b>(&'b self) -> MdbValue<'b> {
[INFO] [stderr] 56 | |         unsafe {
[INFO] [stderr] 57 | |             MdbValue::new(mem::transmute(self.as_ptr()),
[INFO] [stderr] 58 | |                           self.len())
[INFO] [stderr] 59 | |         }
[INFO] [stderr] 60 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |             MdbValue::new(mem::transmute(self.as_ptr()),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.as_ptr() as *const libc::c_void`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 | /     fn to_mdb_value<'b>(&'b self) -> MdbValue<'b> {
[INFO] [stderr] 65 | |         unsafe {
[INFO] [stderr] 66 | |             MdbValue::new(std::mem::transmute(self.as_ptr()),
[INFO] [stderr] 67 | |                           self.len())
[INFO] [stderr] 68 | |         }
[INFO] [stderr] 69 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:66:27
[INFO] [stderr]    |
[INFO] [stderr] 66 |             MdbValue::new(std::mem::transmute(self.as_ptr()),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.as_ptr() as *const libc::c_void`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 | /     fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 74 | |         unsafe {
[INFO] [stderr] 75 | |             MdbValue::from_raw(self)
[INFO] [stderr] 76 | |         }
[INFO] [stderr] 77 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/traits.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 | /     fn to_mdb_value<'b>(&'b self) -> MdbValue<'b> {
[INFO] [stderr] 82 | |         *self
[INFO] [stderr] 83 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/traits.rs:90:23
[INFO] [stderr]    |
[INFO] [stderr] 90 |             let ptr = mem::transmute(value.get_ref());
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *const u8`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:100:23
[INFO] [stderr]     |
[INFO] [stderr] 100 |             let ptr = mem::transmute(value.get_ref());
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *const u8`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a reference
[INFO] [stderr]    --> src/traits.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             std::mem::transmute(slice::from_raw_parts(value.get_ref(), value.get_size()))
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(slice::from_raw_parts(value.get_ref(), value.get_size()) as *const [libc::c_void] as *const str)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a reference
[INFO] [stderr]    --> src/traits.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |             std::mem::transmute(slice::from_raw_parts(value.get_ref(), value.get_size()))
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(slice::from_raw_parts(value.get_ref(), value.get_size()) as *const [libc::c_void] as *const [u8])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 147 |   mdb_for_primitive!(u8);
[INFO] [stderr]     |   ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut u8`
[INFO] [stderr] ...
[INFO] [stderr] 147 | mdb_for_primitive!(u8);
[INFO] [stderr]     | ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 148 |   mdb_for_primitive!(i8);
[INFO] [stderr]     |   ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut i8`
[INFO] [stderr] ...
[INFO] [stderr] 148 | mdb_for_primitive!(i8);
[INFO] [stderr]     | ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 149 |   mdb_for_primitive!(u16);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut u16`
[INFO] [stderr] ...
[INFO] [stderr] 149 | mdb_for_primitive!(u16);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 150 |   mdb_for_primitive!(i16);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut i16`
[INFO] [stderr] ...
[INFO] [stderr] 150 | mdb_for_primitive!(i16);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 151 |   mdb_for_primitive!(u32);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut u32`
[INFO] [stderr] ...
[INFO] [stderr] 151 | mdb_for_primitive!(u32);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 152 |   mdb_for_primitive!(i32);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut i32`
[INFO] [stderr] ...
[INFO] [stderr] 152 | mdb_for_primitive!(i32);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 153 |   mdb_for_primitive!(u64);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut u64`
[INFO] [stderr] ...
[INFO] [stderr] 153 | mdb_for_primitive!(u64);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 154 |   mdb_for_primitive!(i64);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut i64`
[INFO] [stderr] ...
[INFO] [stderr] 154 | mdb_for_primitive!(i64);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 155 |   mdb_for_primitive!(f32);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut f32`
[INFO] [stderr] ...
[INFO] [stderr] 155 | mdb_for_primitive!(f32);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 156 |   mdb_for_primitive!(f64);
[INFO] [stderr]     |   ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut f64`
[INFO] [stderr] ...
[INFO] [stderr] 156 | mdb_for_primitive!(f64);
[INFO] [stderr]     | ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/traits.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 | /             fn to_mdb_value<'a>(&'a self) -> MdbValue<'a> {
[INFO] [stderr] 131 | |                 MdbValue::new_from_sized(self)
[INFO] [stderr] 132 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 157 |   mdb_for_primitive!(bool);
[INFO] [stderr]     |   ------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/traits.rs:138:38
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     let t: *mut $t = mem::transmute(value.get_ref());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `value.get_ref() as *mut bool`
[INFO] [stderr] ...
[INFO] [stderr] 157 | mdb_for_primitive!(bool);
[INFO] [stderr]     | ------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/tests.rs:236:13
[INFO] [stderr]     |
[INFO] [stderr] 236 |             Err(_) => panic!("unexpected db error"),
[INFO] [stderr]     |             ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/tests.rs:382:17
[INFO] [stderr]     |
[INFO] [stderr] 382 | fn as_slices(v: &Vec<String>) -> Vec<&str> {
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: change this to: `&[String]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/tests.rs:653:33
[INFO] [stderr]     |
[INFO] [stderr] 653 |         assert_eq!(res, &values[start_idx.. end_idx + 1]);
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use: `start_idx..=end_idx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `lmdb-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "91ad68134bbe0149b7006fe9f191a609caf3113a0ce62c741bf1b1dfce2f58c6"`
[INFO] running `"docker" "rm" "-f" "91ad68134bbe0149b7006fe9f191a609caf3113a0ce62c741bf1b1dfce2f58c6"`
[INFO] [stdout] 91ad68134bbe0149b7006fe9f191a609caf3113a0ce62c741bf1b1dfce2f58c6