[INFO] updating cached repository asypost/ip2region-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asypost/ip2region-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asypost/ip2region-rust" "work/ex/clippy-test-run/sources/stable/gh/asypost/ip2region-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/asypost/ip2region-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asypost/ip2region-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/asypost/ip2region-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/asypost/ip2region-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 67378fce72a2340407ef4d762d13b9199b85b230
[INFO] sha for GitHub repo asypost/ip2region-rust: 67378fce72a2340407ef4d762d13b9199b85b230
[INFO] validating manifest of asypost/ip2region-rust 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 asypost/ip2region-rust 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 asypost/ip2region-rust
[INFO] finished frobbing asypost/ip2region-rust
[INFO] frobbed toml for asypost/ip2region-rust written to work/ex/clippy-test-run/sources/stable/gh/asypost/ip2region-rust/Cargo.toml
[INFO] started frobbing asypost/ip2region-rust
[INFO] finished frobbing asypost/ip2region-rust
[INFO] frobbed toml for asypost/ip2region-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/asypost/ip2region-rust/Cargo.toml
[INFO] crate asypost/ip2region-rust has a lockfile. skipping
[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 asypost/ip2region-rust against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/asypost/ip2region-rust:/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] d12df6788d20fefc6fc63c053e6cf815706806442b8944b4b7ed7872185af0ae
[INFO] running `"docker" "start" "-a" "d12df6788d20fefc6fc63c053e6cf815706806442b8944b4b7ed7872185af0ae"`
[INFO] [stderr]     Checking ip2region v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib/into_u32.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib/into_u32.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib/ip2region.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         return (self.index_end - self.index_start) / (Self::INDEX_BLOCK_LENGTH as u32) + 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(self.index_end - self.index_start) / (Self::INDEX_BLOCK_LENGTH as u32) + 1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]   --> src/lib/ip2region.rs:49:31
[INFO] [stderr]    |
[INFO] [stderr] 49 |             let middle: u32 = ((end + start)) >> 1;
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/lib/ip2region.rs:71:31
[INFO] [stderr]    |
[INFO] [stderr] 71 |         data_ptr = data_ptr & 0x00FFFFFF;
[INFO] [stderr]    |                               ^^^^^^^^^^ help: consider: `0x00FF_FFFF`
[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: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/into_u32.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             result = result | (self.octets()[i] as u32) << (((3-i) * 8) as u32);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= (self.octets()[i] as u32) << (((3-i) * 8) as u32)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/into_u32.rs:11:31
[INFO] [stderr]    |
[INFO] [stderr] 11 |             result = result | (self.octets()[i] as u32) << (((3-i) * 8) as u32);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self.octets()[i])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/into_u32.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             result = result | (self[i] as u32) << ((i * 8) as u32);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= (self[i] as u32) << ((i * 8) as u32)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/into_u32.rs:21:31
[INFO] [stderr]    |
[INFO] [stderr] 21 |             result = result | (self[i] as u32) << ((i * 8) as u32);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^ help: try: `u32::from(self[i])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/ip2region.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             index_start = index_start | (super_block[i] as u32) << rhs;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `index_start |= (super_block[i] as u32) << rhs`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:25:41
[INFO] [stderr]    |
[INFO] [stderr] 25 |             index_start = index_start | (super_block[i] as u32) << rhs;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(super_block[i])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/ip2region.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |             index_end = index_end | (super_block[i + 4] as u32) << rhs;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `index_end |= (super_block[i + 4] as u32) << rhs`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:29:37
[INFO] [stderr]    |
[INFO] [stderr] 29 |             index_end = index_end | (super_block[i + 4] as u32) << rhs;
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(super_block[i + 4])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:39:54
[INFO] [stderr]    |
[INFO] [stderr] 39 |         return (self.index_end - self.index_start) / (Self::INDEX_BLOCK_LENGTH as u32) + 1;
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(Self::INDEX_BLOCK_LENGTH)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/lib/ip2region.rs:42:38
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn get_region(&mut self, ip: &Ipv4Addr) -> io::Result<IpRegion> {
[INFO] [stderr]    |                                      ^^^^^^^^^ help: consider passing by value instead: `Ipv4Addr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 self.index_start as u64 + middle as u64 * Self::INDEX_BLOCK_LENGTH as u64,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.index_start)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:51:43
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 self.index_start as u64 + middle as u64 * Self::INDEX_BLOCK_LENGTH as u64,
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^ help: try: `u64::from(middle)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:51:59
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 self.index_start as u64 + middle as u64 * Self::INDEX_BLOCK_LENGTH as u64,
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(Self::INDEX_BLOCK_LENGTH)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/ip2region.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         data_ptr = data_ptr & 0x00FFFFFF;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `data_ptr &= 0x00FFFFFF`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:72:40
[INFO] [stderr]    |
[INFO] [stderr] 72 |         self.file.seek(SeekFrom::Start(data_ptr as u64))?;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^ help: try: `u64::from(data_ptr)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:17:45
[INFO] [stderr]    |
[INFO] [stderr] 17 |         match Ip2Region::new(CStr::from_ptr(db_file).to_str().unwrap()){
[INFO] [stderr]    |                                             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::not_unsafe_ptr_arg_deref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:30:27
[INFO] [stderr]    |
[INFO] [stderr] 30 |             Box::from_raw(ptr);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:41:33
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let ip = CStr::from_ptr(ip).to_string_lossy().into_owned();
[INFO] [stderr]    |                                 ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:44:39
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let ip2region = &mut *ip2region;
[INFO] [stderr]    |                                       ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:62:27
[INFO] [stderr]    |
[INFO] [stderr] 62 |         CString::from_raw(region);
[INFO] [stderr]    |                           ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ip2region`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib/into_u32.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib/into_u32.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib/ip2region.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         return (self.index_end - self.index_start) / (Self::INDEX_BLOCK_LENGTH as u32) + 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(self.index_end - self.index_start) / (Self::INDEX_BLOCK_LENGTH as u32) + 1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]   --> src/lib/ip2region.rs:49:31
[INFO] [stderr]    |
[INFO] [stderr] 49 |             let middle: u32 = ((end + start)) >> 1;
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/lib/ip2region.rs:71:31
[INFO] [stderr]    |
[INFO] [stderr] 71 |         data_ptr = data_ptr & 0x00FFFFFF;
[INFO] [stderr]    |                               ^^^^^^^^^^ help: consider: `0x00FF_FFFF`
[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: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/into_u32.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             result = result | (self.octets()[i] as u32) << (((3-i) * 8) as u32);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= (self.octets()[i] as u32) << (((3-i) * 8) as u32)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/into_u32.rs:11:31
[INFO] [stderr]    |
[INFO] [stderr] 11 |             result = result | (self.octets()[i] as u32) << (((3-i) * 8) as u32);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self.octets()[i])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/into_u32.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             result = result | (self[i] as u32) << ((i * 8) as u32);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= (self[i] as u32) << ((i * 8) as u32)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/into_u32.rs:21:31
[INFO] [stderr]    |
[INFO] [stderr] 21 |             result = result | (self[i] as u32) << ((i * 8) as u32);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^ help: try: `u32::from(self[i])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/ip2region.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             index_start = index_start | (super_block[i] as u32) << rhs;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `index_start |= (super_block[i] as u32) << rhs`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:25:41
[INFO] [stderr]    |
[INFO] [stderr] 25 |             index_start = index_start | (super_block[i] as u32) << rhs;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(super_block[i])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/ip2region.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |             index_end = index_end | (super_block[i + 4] as u32) << rhs;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `index_end |= (super_block[i + 4] as u32) << rhs`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:29:37
[INFO] [stderr]    |
[INFO] [stderr] 29 |             index_end = index_end | (super_block[i + 4] as u32) << rhs;
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(super_block[i + 4])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:39:54
[INFO] [stderr]    |
[INFO] [stderr] 39 |         return (self.index_end - self.index_start) / (Self::INDEX_BLOCK_LENGTH as u32) + 1;
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(Self::INDEX_BLOCK_LENGTH)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/lib/ip2region.rs:42:38
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn get_region(&mut self, ip: &Ipv4Addr) -> io::Result<IpRegion> {
[INFO] [stderr]    |                                      ^^^^^^^^^ help: consider passing by value instead: `Ipv4Addr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 self.index_start as u64 + middle as u64 * Self::INDEX_BLOCK_LENGTH as u64,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.index_start)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:51:43
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 self.index_start as u64 + middle as u64 * Self::INDEX_BLOCK_LENGTH as u64,
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^ help: try: `u64::from(middle)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:51:59
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 self.index_start as u64 + middle as u64 * Self::INDEX_BLOCK_LENGTH as u64,
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(Self::INDEX_BLOCK_LENGTH)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lib/ip2region.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         data_ptr = data_ptr & 0x00FFFFFF;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `data_ptr &= 0x00FFFFFF`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib/ip2region.rs:72:40
[INFO] [stderr]    |
[INFO] [stderr] 72 |         self.file.seek(SeekFrom::Start(data_ptr as u64))?;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^ help: try: `u64::from(data_ptr)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:17:45
[INFO] [stderr]    |
[INFO] [stderr] 17 |         match Ip2Region::new(CStr::from_ptr(db_file).to_str().unwrap()){
[INFO] [stderr]    |                                             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::not_unsafe_ptr_arg_deref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:30:27
[INFO] [stderr]    |
[INFO] [stderr] 30 |             Box::from_raw(ptr);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:41:33
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let ip = CStr::from_ptr(ip).to_string_lossy().into_owned();
[INFO] [stderr]    |                                 ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:44:39
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let ip2region = &mut *ip2region;
[INFO] [stderr]    |                                       ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: this public function dereferences a raw pointer but is not marked `unsafe`
[INFO] [stderr]   --> src/lib/mod.rs:62:27
[INFO] [stderr]    |
[INFO] [stderr] 62 |         CString::from_raw(region);
[INFO] [stderr]    |                           ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ip2region`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d12df6788d20fefc6fc63c053e6cf815706806442b8944b4b7ed7872185af0ae"`
[INFO] running `"docker" "rm" "-f" "d12df6788d20fefc6fc63c053e6cf815706806442b8944b4b7ed7872185af0ae"`
[INFO] [stdout] d12df6788d20fefc6fc63c053e6cf815706806442b8944b4b7ed7872185af0ae