[INFO] crate diskvec 0.1.2 is already in cache
[INFO] extracting crate diskvec 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/diskvec/0.1.2
[INFO] extracting crate diskvec 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/diskvec/0.1.2
[INFO] validating manifest of diskvec-0.1.2 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 diskvec-0.1.2 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 diskvec-0.1.2
[INFO] finished frobbing diskvec-0.1.2
[INFO] frobbed toml for diskvec-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/diskvec/0.1.2/Cargo.toml
[INFO] started frobbing diskvec-0.1.2
[INFO] finished frobbing diskvec-0.1.2
[INFO] frobbed toml for diskvec-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/diskvec/0.1.2/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 diskvec-0.1.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/diskvec/0.1.2:/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] 5c6cf25536fa8afaadba3202e000b5aee139d9fc0cd1ace3e1c01e29781ce710
[INFO] running `"docker" "start" "-a" "5c6cf25536fa8afaadba3202e000b5aee139d9fc0cd1ace3e1c01e29781ce710"`
[INFO] [stderr]     Checking diskvec v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: item `DiskVec<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | / impl<T: Volatile> DiskVec<T> {
[INFO] [stderr] 103 | |     /// Construct a new `DiskVec` given a path.
[INFO] [stderr] 104 | |     pub fn new<P: Into<PathBuf>>(path: P) -> io::Result<Self> {
[INFO] [stderr] 105 | |         unsafe {
[INFO] [stderr] ...   |
[INFO] [stderr] 271 | |     }
[INFO] [stderr] 272 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `ranks`.
[INFO] [stderr]    --> src/lib.rs:115:22
[INFO] [stderr]     |
[INFO] [stderr] 115 |             for i in 0..RANKS {
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 115 |             for <item> in ranks.iter_mut().take(RANKS) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `writelocks`.
[INFO] [stderr]    --> src/lib.rs:120:22
[INFO] [stderr]     |
[INFO] [stderr] 120 |             for i in 0..LOCKS {
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 120 |             for <item> in writelocks.iter_mut().take(LOCKS) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `rank` is used to index `ranks`
[INFO] [stderr]    --> src/lib.rs:125:25
[INFO] [stderr]     |
[INFO] [stderr] 125 |             for rank in 0..RANKS {
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 125 |             for (rank, <item>) in ranks.iter().enumerate().take(RANKS) {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/lib.rs:145:41
[INFO] [stderr]     |
[INFO] [stderr] 145 |                       let ptr: *const T = mem::transmute(
[INFO] [stderr]     |  _________________________________________^
[INFO] [stderr] 146 | |                         (*ranks[rank].get())
[INFO] [stderr] 147 | |                             .as_ref()
[INFO] [stderr] 148 | |                             .expect("accessing uninitialized rank")
[INFO] [stderr] 149 | |                             .ptr(),
[INFO] [stderr] 150 | |                     );
[INFO] [stderr]     | |_____________________^
[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] help: try
[INFO] [stderr]     |
[INFO] [stderr] 145 |                     let ptr: *const T = (*ranks[rank].get())
[INFO] [stderr] 146 |                             .as_ref()
[INFO] [stderr] 147 |                             .expect("accessing uninitialized rank")
[INFO] [stderr] 148 |                             .ptr() as *const T;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:151:31
[INFO] [stderr]     |
[INFO] [stderr] 151 |                     let ptr = ptr.offset(ofs as isize);
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr.add(ofs)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_offset_with_cast)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/lib.rs:175:23
[INFO] [stderr]     |
[INFO] [stderr] 175 |                 path: path.into(),
[INFO] [stderr]     |                       ^^^^^^^^^^^ help: consider removing `.into()`: `path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/lib.rs:186:37
[INFO] [stderr]     |
[INFO] [stderr] 186 |                   let ptr: *const T = mem::transmute(
[INFO] [stderr]     |  _____________________________________^
[INFO] [stderr] 187 | |                     (*self.ranks[rank].get())
[INFO] [stderr] 188 | |                         .as_ref()
[INFO] [stderr] 189 | |                         .expect("accessing uninitialized rank")
[INFO] [stderr] 190 | |                         .ptr(),
[INFO] [stderr] 191 | |                 );
[INFO] [stderr]     | |_________________^
[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] help: try
[INFO] [stderr]     |
[INFO] [stderr] 186 |                 let ptr: *const T = (*self.ranks[rank].get())
[INFO] [stderr] 187 |                         .as_ref()
[INFO] [stderr] 188 |                         .expect("accessing uninitialized rank")
[INFO] [stderr] 189 |                         .ptr() as *const T;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:192:27
[INFO] [stderr]     |
[INFO] [stderr] 192 |                 let ptr = ptr.offset(ofs as isize);
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr.add(ofs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*const T`) to a reference type (`&T`)
[INFO] [stderr]    --> src/lib.rs:196:26
[INFO] [stderr]     |
[INFO] [stderr] 196 |                     Some(mem::transmute(ptr))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^ help: try: `&*ptr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_ptr_to_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/lib.rs:209:35
[INFO] [stderr]     |
[INFO] [stderr] 209 |                   let ptr: *mut T = mem::transmute(
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 210 | |                     (*self.ranks[rank].get())
[INFO] [stderr] 211 | |                         .as_ref()
[INFO] [stderr] 212 | |                         .expect("accessing uninitialized rank")
[INFO] [stderr] 213 | |                         .ptr(),
[INFO] [stderr] 214 | |                 );
[INFO] [stderr]     | |_________________^
[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] help: try
[INFO] [stderr]     |
[INFO] [stderr] 209 |                 let ptr: *mut T = (*self.ranks[rank].get())
[INFO] [stderr] 210 |                         .as_ref()
[INFO] [stderr] 211 |                         .expect("accessing uninitialized rank")
[INFO] [stderr] 212 |                         .ptr() as *mut T;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:215:27
[INFO] [stderr]     |
[INFO] [stderr] 215 |                 let ptr = ptr.offset(ofs as isize);
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr.add(ofs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut T`) to a reference type (`&mut T`)
[INFO] [stderr]    --> src/lib.rs:220:36
[INFO] [stderr]     |
[INFO] [stderr] 220 |                         reference: mem::transmute(ptr),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `&mut *ptr`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/lib.rs:260:33
[INFO] [stderr]     |
[INFO] [stderr] 260 |               let ptr: *const T = mem::transmute(
[INFO] [stderr]     |  _________________________________^
[INFO] [stderr] 261 | |                 (*self.ranks[rank].get())
[INFO] [stderr] 262 | |                     .as_ref()
[INFO] [stderr] 263 | |                     .expect("accessing uninitialized rank")
[INFO] [stderr] 264 | |                     .ptr(),
[INFO] [stderr] 265 | |             );
[INFO] [stderr]     | |_____________^
[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] help: try
[INFO] [stderr]     |
[INFO] [stderr] 260 |             let ptr: *const T = (*self.ranks[rank].get())
[INFO] [stderr] 261 |                     .as_ref()
[INFO] [stderr] 262 |                     .expect("accessing uninitialized rank")
[INFO] [stderr] 263 |                     .ptr() as *const T;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:266:33
[INFO] [stderr]     |
[INFO] [stderr] 266 |             let ptr: *const T = ptr.offset(ofs as isize);
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr.add(ofs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*const T`) to a reference type (`&mut T`)
[INFO] [stderr]    --> src/lib.rs:267:31
[INFO] [stderr]     |
[INFO] [stderr] 267 |             let ptr: &mut T = mem::transmute(ptr);
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^ help: try: `&mut *ptr`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr] 
[INFO] [stderr] warning: item `DiskVec<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | / impl<T: Volatile> DiskVec<T> {
[INFO] [stderr] 103 | |     /// Construct a new `DiskVec` given a path.
[INFO] [stderr] 104 | |     pub fn new<P: Into<PathBuf>>(path: P) -> io::Result<Self> {
[INFO] [stderr] 105 | |         unsafe {
[INFO] [stderr] ...   |
[INFO] [stderr] 271 | |     }
[INFO] [stderr] 272 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `ranks`.
[INFO] [stderr]    --> src/lib.rs:115:22
[INFO] [stderr]     |
[INFO] [stderr] 115 |             for i in 0..RANKS {
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 115 |             for <item> in ranks.iter_mut().take(RANKS) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `writelocks`.
[INFO] [stderr]    --> src/lib.rs:120:22
[INFO] [stderr]     |
[INFO] [stderr] 120 |             for i in 0..LOCKS {
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 120 |             for <item> in writelocks.iter_mut().take(LOCKS) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `rank` is used to index `ranks`
[INFO] [stderr]    --> src/lib.rs:125:25
[INFO] [stderr]     |
[INFO] [stderr] 125 |             for rank in 0..RANKS {
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 125 |             for (rank, <item>) in ranks.iter().enumerate().take(RANKS) {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/lib.rs:145:41
[INFO] [stderr]     |
[INFO] [stderr] 145 |                       let ptr: *const T = mem::transmute(
[INFO] [stderr]     |  _________________________________________^
[INFO] [stderr] 146 | |                         (*ranks[rank].get())
[INFO] [stderr] 147 | |                             .as_ref()
[INFO] [stderr] 148 | |                             .expect("accessing uninitialized rank")
[INFO] [stderr] 149 | |                             .ptr(),
[INFO] [stderr] 150 | |                     );
[INFO] [stderr]     | |_____________________^
[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] help: try
[INFO] [stderr]     |
[INFO] [stderr] 145 |                     let ptr: *const T = (*ranks[rank].get())
[INFO] [stderr] 146 |                             .as_ref()
[INFO] [stderr] 147 |                             .expect("accessing uninitialized rank")
[INFO] [stderr] 148 |                             .ptr() as *const T;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:151:31
[INFO] [stderr]     |
[INFO] [stderr] 151 |                     let ptr = ptr.offset(ofs as isize);
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr.add(ofs)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_offset_with_cast)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/lib.rs:175:23
[INFO] [stderr]     |
[INFO] [stderr] 175 |                 path: path.into(),
[INFO] [stderr]     |                       ^^^^^^^^^^^ help: consider removing `.into()`: `path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/lib.rs:186:37
[INFO] [stderr]     |
[INFO] [stderr] 186 |                   let ptr: *const T = mem::transmute(
[INFO] [stderr]     |  _____________________________________^
[INFO] [stderr] 187 | |                     (*self.ranks[rank].get())
[INFO] [stderr] 188 | |                         .as_ref()
[INFO] [stderr] 189 | |                         .expect("accessing uninitialized rank")
[INFO] [stderr] 190 | |                         .ptr(),
[INFO] [stderr] 191 | |                 );
[INFO] [stderr]     | |_________________^
[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] help: try
[INFO] [stderr]     |
[INFO] [stderr] 186 |                 let ptr: *const T = (*self.ranks[rank].get())
[INFO] [stderr] 187 |                         .as_ref()
[INFO] [stderr] 188 |                         .expect("accessing uninitialized rank")
[INFO] [stderr] 189 |                         .ptr() as *const T;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:192:27
[INFO] [stderr]     |
[INFO] [stderr] 192 |                 let ptr = ptr.offset(ofs as isize);
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr.add(ofs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*const T`) to a reference type (`&T`)
[INFO] [stderr]    --> src/lib.rs:196:26
[INFO] [stderr]     |
[INFO] [stderr] 196 |                     Some(mem::transmute(ptr))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^ help: try: `&*ptr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_ptr_to_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/lib.rs:209:35
[INFO] [stderr]     |
[INFO] [stderr] 209 |                   let ptr: *mut T = mem::transmute(
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 210 | |                     (*self.ranks[rank].get())
[INFO] [stderr] 211 | |                         .as_ref()
[INFO] [stderr] 212 | |                         .expect("accessing uninitialized rank")
[INFO] [stderr] 213 | |                         .ptr(),
[INFO] [stderr] 214 | |                 );
[INFO] [stderr]     | |_________________^
[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] help: try
[INFO] [stderr]     |
[INFO] [stderr] 209 |                 let ptr: *mut T = (*self.ranks[rank].get())
[INFO] [stderr] 210 |                         .as_ref()
[INFO] [stderr] 211 |                         .expect("accessing uninitialized rank")
[INFO] [stderr] 212 |                         .ptr() as *mut T;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:215:27
[INFO] [stderr]     |
[INFO] [stderr] 215 |                 let ptr = ptr.offset(ofs as isize);
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr.add(ofs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut T`) to a reference type (`&mut T`)
[INFO] [stderr]    --> src/lib.rs:220:36
[INFO] [stderr]     |
[INFO] [stderr] 220 |                         reference: mem::transmute(ptr),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `&mut *ptr`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]    --> src/lib.rs:260:33
[INFO] [stderr]     |
[INFO] [stderr] 260 |               let ptr: *const T = mem::transmute(
[INFO] [stderr]     |  _________________________________^
[INFO] [stderr] 261 | |                 (*self.ranks[rank].get())
[INFO] [stderr] 262 | |                     .as_ref()
[INFO] [stderr] 263 | |                     .expect("accessing uninitialized rank")
[INFO] [stderr] 264 | |                     .ptr(),
[INFO] [stderr] 265 | |             );
[INFO] [stderr]     | |_____________^
[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] help: try
[INFO] [stderr]     |
[INFO] [stderr] 260 |             let ptr: *const T = (*self.ranks[rank].get())
[INFO] [stderr] 261 |                     .as_ref()
[INFO] [stderr] 262 |                     .expect("accessing uninitialized rank")
[INFO] [stderr] 263 |                     .ptr() as *const T;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:266:33
[INFO] [stderr]     |
[INFO] [stderr] 266 |             let ptr: *const T = ptr.offset(ofs as isize);
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr.add(ofs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*const T`) to a reference type (`&mut T`)
[INFO] [stderr]    --> src/lib.rs:267:31
[INFO] [stderr]     |
[INFO] [stderr] 267 |             let ptr: &mut T = mem::transmute(ptr);
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^ help: try: `&mut *ptr`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `"docker" "inspect" "5c6cf25536fa8afaadba3202e000b5aee139d9fc0cd1ace3e1c01e29781ce710"`
[INFO] running `"docker" "rm" "-f" "5c6cf25536fa8afaadba3202e000b5aee139d9fc0cd1ace3e1c01e29781ce710"`
[INFO] [stdout] 5c6cf25536fa8afaadba3202e000b5aee139d9fc0cd1ace3e1c01e29781ce710