[INFO] crate ocaml 0.5.0 is already in cache
[INFO] extracting crate ocaml 0.5.0 into work/ex/clippy-test-run/sources/stable/reg/ocaml/0.5.0
[INFO] extracting crate ocaml 0.5.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ocaml/0.5.0
[INFO] validating manifest of ocaml-0.5.0 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 ocaml-0.5.0 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 ocaml-0.5.0
[INFO] finished frobbing ocaml-0.5.0
[INFO] frobbed toml for ocaml-0.5.0 written to work/ex/clippy-test-run/sources/stable/reg/ocaml/0.5.0/Cargo.toml
[INFO] started frobbing ocaml-0.5.0
[INFO] finished frobbing ocaml-0.5.0
[INFO] frobbed toml for ocaml-0.5.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ocaml/0.5.0/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 ocaml-0.5.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/ocaml/0.5.0:/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] 09c16274cca966a012cb26f4c2eed5360ce5a1f1090ba912c18d1f6b9d2ed4a8
[INFO] running `"docker" "start" "-a" "09c16274cca966a012cb26f4c2eed5360ce5a1f1090ba912c18d1f6b9d2ed4a8"`
[INFO] [stderr]     Checking ocaml v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/types.rs:413:13
[INFO] [stderr]     |
[INFO] [stderr] 413 |             x
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/types.rs:412:21
[INFO] [stderr]     |
[INFO] [stderr] 412 |             let x = (*ba).dim as usize;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/value.rs:466:13
[INFO] [stderr]     |
[INFO] [stderr] 466 |             return val1;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `val1`
[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/value.rs:493:13
[INFO] [stderr]     |
[INFO] [stderr] 493 |             return Value::ptr(ptr1.offset(1));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Value::ptr(ptr1.offset(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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/types.rs:413:13
[INFO] [stderr]     |
[INFO] [stderr] 413 |             x
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/types.rs:412:21
[INFO] [stderr]     |
[INFO] [stderr] 412 |             let x = (*ba).dim as usize;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/value.rs:466:13
[INFO] [stderr]     |
[INFO] [stderr] 466 |             return val1;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `val1`
[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/value.rs:493:13
[INFO] [stderr]     |
[INFO] [stderr] 493 |             return Value::ptr(ptr1.offset(1));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Value::ptr(ptr1.offset(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: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/core/mlvalues.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         ($block as *mut $crate::core::mlvalues::Value).offset($i)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `($block as *mut $crate::core::mlvalues::Value).add(i)`
[INFO] [stderr] ...
[INFO] [stderr] 119 |     field!(value, i as isize)
[INFO] [stderr]     |     ------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_offset_with_cast)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/core/mlvalues.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         ($block as *mut $crate::core::mlvalues::Value).offset($i)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `($block as *mut $crate::core::mlvalues::Value).add(offset)`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/memory.rs:97:5
[INFO] [stderr]     |
[INFO] [stderr] 97  |     store_field!(block, offset as isize, value);
[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#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/tag.rs:36:15
[INFO] [stderr]    |
[INFO] [stderr] 36 |         match i as u32 {
[INFO] [stderr]    |               ^^^^^^^^ help: try: `u32::from(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: item `types::Tuple` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]   --> src/types.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | / impl Tuple {
[INFO] [stderr] 38 | |     /// Create a new tuple
[INFO] [stderr] 39 | |     pub fn new(n: Size) -> Tuple {
[INFO] [stderr] 40 | |         unsafe {
[INFO] [stderr] ...  |
[INFO] [stderr] 68 | |     }
[INFO] [stderr] 69 | | }
[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: item `types::Array` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/types.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | / impl Array {
[INFO] [stderr] 106 | |     /// Create a new array of the given size
[INFO] [stderr] 107 | |     pub fn new(n: Size) -> Array {
[INFO] [stderr] 108 | |         unsafe {
[INFO] [stderr] ...   |
[INFO] [stderr] 176 | |     }
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[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: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/types.rs:134:27
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 let ptr = self.0.ptr_val::<f64>().offset(i as isize) as *mut f64;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.0.ptr_val::<f64>().add(i)`
[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: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/types.rs:152:21
[INFO] [stderr]     |
[INFO] [stderr] 152 |                 Ok(*self.0.ptr_val::<f64>().offset(i as isize))
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.0.ptr_val::<f64>().add(i)`
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/types.rs:192:13
[INFO] [stderr]     |
[INFO] [stderr] 192 |             let _ = l.push_hd(v);
[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/types.rs:205:13
[INFO] [stderr]     |
[INFO] [stderr] 205 |             let _ = dst.push_hd(item.clone());
[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: item `types::List` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/types.rs:212:1
[INFO] [stderr]     |
[INFO] [stderr] 212 | / impl List {
[INFO] [stderr] 213 | |     /// Create a new OCaml list
[INFO] [stderr] 214 | |     pub fn new() -> List {
[INFO] [stderr] 215 | |         List(Value::new(empty_list()))
[INFO] [stderr] ...   |
[INFO] [stderr] 253 | |     }
[INFO] [stderr] 254 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[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: you should consider adding a `Default` implementation for `types::List`
[INFO] [stderr]    --> src/types.rs:214:5
[INFO] [stderr]     |
[INFO] [stderr] 214 | /     pub fn new() -> List {
[INFO] [stderr] 215 | |         List(Value::new(empty_list()))
[INFO] [stderr] 216 | |     }
[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] 212 | impl Default for types::List {
[INFO] [stderr] 213 |     fn default() -> Self {
[INFO] [stderr] 214 |         Self::new()
[INFO] [stderr] 215 |     }
[INFO] [stderr] 216 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: item `types::Str` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/types.rs:300:1
[INFO] [stderr]     |
[INFO] [stderr] 300 | / impl Str {
[INFO] [stderr] 301 | |     /// Create a new string of a given length
[INFO] [stderr] 302 | |     pub fn new(n: Size) -> Str {
[INFO] [stderr] 303 | |         unsafe {
[INFO] [stderr] ...   |
[INFO] [stderr] 348 | |     }
[INFO] [stderr] 349 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[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: item `types::Array1<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/types.rs:393:1
[INFO] [stderr]     |
[INFO] [stderr] 393 | / impl<T: BigarrayKind> Array1<T> {
[INFO] [stderr] 394 | |     pub fn of_slice(data: &mut [T]) -> Array1<T> {
[INFO] [stderr] 395 | |         unsafe {
[INFO] [stderr] 396 | |             let s = bigarray::caml_ba_alloc_dims(T::kind() | bigarray::Managed::EXTERNAL as i32, 1, data.as_mut_ptr() as bigarray::Data, data.len() as i32);
[INFO] [stderr] ...   |
[INFO] [stderr] 429 | |     }
[INFO] [stderr] 430 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[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: casting i8 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i16 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[INFO] [stderr]    | ------------------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/core/mlvalues.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         ($block as *mut $crate::core::mlvalues::Value).offset($i)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `($block as *mut $crate::core::mlvalues::Value).add(i)`
[INFO] [stderr] ...
[INFO] [stderr] 119 |     field!(value, i as isize)
[INFO] [stderr]     |     ------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_offset_with_cast)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/core/mlvalues.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         ($block as *mut $crate::core::mlvalues::Value).offset($i)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `($block as *mut $crate::core::mlvalues::Value).add(offset)`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/memory.rs:97:5
[INFO] [stderr]     |
[INFO] [stderr] 97  |     store_field!(block, offset as isize, value);
[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#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/tag.rs:36:15
[INFO] [stderr]    |
[INFO] [stderr] 36 |         match i as u32 {
[INFO] [stderr]    |               ^^^^^^^^ help: try: `u32::from(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: item `types::Tuple` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]   --> src/types.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | / impl Tuple {
[INFO] [stderr] 38 | |     /// Create a new tuple
[INFO] [stderr] 39 | |     pub fn new(n: Size) -> Tuple {
[INFO] [stderr] 40 | |         unsafe {
[INFO] [stderr] ...  |
[INFO] [stderr] 68 | |     }
[INFO] [stderr] 69 | | }
[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: item `types::Array` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/types.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | / impl Array {
[INFO] [stderr] 106 | |     /// Create a new array of the given size
[INFO] [stderr] 107 | |     pub fn new(n: Size) -> Array {
[INFO] [stderr] 108 | |         unsafe {
[INFO] [stderr] ...   |
[INFO] [stderr] 176 | |     }
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[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: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/types.rs:134:27
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 let ptr = self.0.ptr_val::<f64>().offset(i as isize) as *mut f64;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.0.ptr_val::<f64>().add(i)`
[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: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/types.rs:152:21
[INFO] [stderr]     |
[INFO] [stderr] 152 |                 Ok(*self.0.ptr_val::<f64>().offset(i as isize))
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.0.ptr_val::<f64>().add(i)`
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/types.rs:192:13
[INFO] [stderr]     |
[INFO] [stderr] 192 |             let _ = l.push_hd(v);
[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/types.rs:205:13
[INFO] [stderr]     |
[INFO] [stderr] 205 |             let _ = dst.push_hd(item.clone());
[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: item `types::List` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/types.rs:212:1
[INFO] [stderr]     |
[INFO] [stderr] 212 | / impl List {
[INFO] [stderr] 213 | |     /// Create a new OCaml list
[INFO] [stderr] 214 | |     pub fn new() -> List {
[INFO] [stderr] 215 | |         List(Value::new(empty_list()))
[INFO] [stderr] ...   |
[INFO] [stderr] 253 | |     }
[INFO] [stderr] 254 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[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: you should consider adding a `Default` implementation for `types::List`
[INFO] [stderr]    --> src/types.rs:214:5
[INFO] [stderr]     |
[INFO] [stderr] 214 | /     pub fn new() -> List {
[INFO] [stderr] 215 | |         List(Value::new(empty_list()))
[INFO] [stderr] 216 | |     }
[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] 212 | impl Default for types::List {
[INFO] [stderr] 213 |     fn default() -> Self {
[INFO] [stderr] 214 |         Self::new()
[INFO] [stderr] 215 |     }
[INFO] [stderr] 216 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: item `types::Str` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/types.rs:300:1
[INFO] [stderr]     |
[INFO] [stderr] 300 | / impl Str {
[INFO] [stderr] 301 | |     /// Create a new string of a given length
[INFO] [stderr] 302 | |     pub fn new(n: Size) -> Str {
[INFO] [stderr] 303 | |         unsafe {
[INFO] [stderr] ...   |
[INFO] [stderr] 348 | |     }
[INFO] [stderr] 349 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[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: item `types::Array1<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/types.rs:393:1
[INFO] [stderr]     |
[INFO] [stderr] 393 | / impl<T: BigarrayKind> Array1<T> {
[INFO] [stderr] 394 | |     pub fn of_slice(data: &mut [T]) -> Array1<T> {
[INFO] [stderr] 395 | |         unsafe {
[INFO] [stderr] 396 | |             let s = bigarray::caml_ba_alloc_dims(T::kind() | bigarray::Managed::EXTERNAL as i32, 1, data.as_mut_ptr() as bigarray::Data, data.len() as i32);
[INFO] [stderr] ...   |
[INFO] [stderr] 429 | |     }
[INFO] [stderr] 430 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[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: casting i8 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i16 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/conv.rs:8:36
[INFO] [stderr]    |
[INFO] [stderr] 8  |                 $crate::Value::i64(self.clone() as i64)
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(self.clone())`
[INFO] [stderr] ...
[INFO] [stderr] 42 | value_i!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize);
[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#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> tests/test.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let caml_int = 7471857119 as usize; // if this is not cast, then it's a u32 and conversion will fail
[INFO] [stderr]   |                    ^^^^^^^^^^ help: consider: `7_471_857_119`
[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: long literal lacking separators
[INFO] [stderr]  --> tests/test.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 |     assert_eq!(x, 0xdeadbeef);
[INFO] [stderr]   |                   ^^^^^^^^^^ help: consider: `0xdead_beef`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `"docker" "inspect" "09c16274cca966a012cb26f4c2eed5360ce5a1f1090ba912c18d1f6b9d2ed4a8"`
[INFO] running `"docker" "rm" "-f" "09c16274cca966a012cb26f4c2eed5360ce5a1f1090ba912c18d1f6b9d2ed4a8"`
[INFO] [stdout] 09c16274cca966a012cb26f4c2eed5360ce5a1f1090ba912c18d1f6b9d2ed4a8