[INFO] crate rlua 0.15.3 is already in cache
[INFO] extracting crate rlua 0.15.3 into work/ex/clippy-test-run/sources/stable/reg/rlua/0.15.3
[INFO] extracting crate rlua 0.15.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rlua/0.15.3
[INFO] validating manifest of rlua-0.15.3 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 rlua-0.15.3 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 rlua-0.15.3
[INFO] finished frobbing rlua-0.15.3
[INFO] frobbed toml for rlua-0.15.3 written to work/ex/clippy-test-run/sources/stable/reg/rlua/0.15.3/Cargo.toml
[INFO] started frobbing rlua-0.15.3
[INFO] finished frobbing rlua-0.15.3
[INFO] frobbed toml for rlua-0.15.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rlua/0.15.3/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 rlua-0.15.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/rlua/0.15.3:/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] 14d1cfcc9b84c44d25d0c1af722fc55e3626a8ecd88a98f6b70e9bc01dca487c
[INFO] running `"docker" "start" "-a" "14d1cfcc9b84c44d25d0c1af722fc55e3626a8ecd88a98f6b70e9bc01dca487c"`
[INFO] [stderr]    Compiling rlua v0.15.3 (/opt/crater/workdir)
[INFO] [stderr]     Checking rustyline v2.1.0
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lua.rs:854:21
[INFO] [stderr]     |
[INFO] [stderr] 854 |                     state: state,
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: replace it with: `state`
[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/lua.rs:854:21
[INFO] [stderr]     |
[INFO] [stderr] 854 |                     state: state,
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: replace it with: `state`
[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: this if statement can be collapsed
[INFO] [stderr]    --> src/util.rs:406:12
[INFO] [stderr]     |
[INFO] [stderr] 406 |       } else if !is_wrapped_panic(state, 1) {
[INFO] [stderr]     |  ____________^
[INFO] [stderr] 407 | |         if ffi::lua_checkstack(state, LUA_TRACEBACK_STACK) != 0 {
[INFO] [stderr] 408 | |             gc_guard(state, || {
[INFO] [stderr] 409 | |                 let s = ffi::lua_tostring(state, 1);
[INFO] [stderr] ...   |
[INFO] [stderr] 418 | |         }
[INFO] [stderr] 419 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 406 |     } else if !is_wrapped_panic(state, 1) && ffi::lua_checkstack(state, LUA_TRACEBACK_STACK) != 0 {
[INFO] [stderr] 407 |     gc_guard(state, || {
[INFO] [stderr] 408 |         let s = ffi::lua_tostring(state, 1);
[INFO] [stderr] 409 |         let s = if s.is_null() {
[INFO] [stderr] 410 |             cstr!("<unprintable lua error>")
[INFO] [stderr] 411 |         } else {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/util.rs:406:12
[INFO] [stderr]     |
[INFO] [stderr] 406 |       } else if !is_wrapped_panic(state, 1) {
[INFO] [stderr]     |  ____________^
[INFO] [stderr] 407 | |         if ffi::lua_checkstack(state, LUA_TRACEBACK_STACK) != 0 {
[INFO] [stderr] 408 | |             gc_guard(state, || {
[INFO] [stderr] 409 | |                 let s = ffi::lua_tostring(state, 1);
[INFO] [stderr] ...   |
[INFO] [stderr] 418 | |         }
[INFO] [stderr] 419 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 406 |     } else if !is_wrapped_panic(state, 1) && ffi::lua_checkstack(state, LUA_TRACEBACK_STACK) != 0 {
[INFO] [stderr] 407 |     gc_guard(state, || {
[INFO] [stderr] 408 |         let s = ffi::lua_tostring(state, 1);
[INFO] [stderr] 409 |         let s = if s.is_null() {
[INFO] [stderr] 410 |             cstr!("<unprintable lua error>")
[INFO] [stderr] 411 |         } else {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/conversion.rs:282:34
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 Ok(Value::Number(self as Number))
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: try: `f64::from(self)`
[INFO] [stderr] ...
[INFO] [stderr] 306 | lua_convert_float!(f32);
[INFO] [stderr]     | ------------------------ in this macro invocation
[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: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/function.rs:162:45
[INFO] [stderr]     |
[INFO] [stderr] 162 |             ffi::lua_pushinteger(lua.state, nargs as ffi::lua_Integer);
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(nargs)`
[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: you should consider adding a `Default` implementation for `lua::Lua`
[INFO] [stderr]   --> src/lua.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 | /     pub fn new() -> Lua {
[INFO] [stderr] 63 | |         unsafe { create_lua(false) }
[INFO] [stderr] 64 | |     }
[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] 60 | impl Default for lua::Lua {
[INFO] [stderr] 61 |     fn default() -> Self {
[INFO] [stderr] 62 |         Self::new()
[INFO] [stderr] 63 |     }
[INFO] [stderr] 64 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lua.rs:146:33
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let mut return_source = "return ".as_bytes().to_vec();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"return "`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/lua.rs:566:17
[INFO] [stderr]     |
[INFO] [stderr] 566 |                 key.registry_id as ffi::lua_Integer,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(key.registry_id)`
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/lua.rs:752:5
[INFO] [stderr]     |
[INFO] [stderr] 752 | /     pub(crate) unsafe fn pop_ref<'lua>(&'lua self) -> LuaRef<'lua> {
[INFO] [stderr] 753 | |         let extra = extra_data(self.state);
[INFO] [stderr] 754 | |         ffi::lua_xmove(self.state, (*extra).ref_thread, 1);
[INFO] [stderr] 755 | |         let index = ref_stack_pop(extra);
[INFO] [stderr] 756 | |         LuaRef { lua: self, index }
[INFO] [stderr] 757 | |     }
[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: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/conversion.rs:282:34
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 Ok(Value::Number(self as Number))
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: try: `f64::from(self)`
[INFO] [stderr] ...
[INFO] [stderr] 306 | lua_convert_float!(f32);
[INFO] [stderr]     | ------------------------ in this macro invocation
[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: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/lua.rs:915:13
[INFO] [stderr]     |
[INFO] [stderr] 915 |             ud_index as ffi::lua_Integer,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(ud_index)`
[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/function.rs:162:45
[INFO] [stderr]     |
[INFO] [stderr] 162 |             ffi::lua_pushinteger(lua.state, nargs as ffi::lua_Integer);
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(nargs)`
[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: you should consider adding a `Default` implementation for `lua::Lua`
[INFO] [stderr]   --> src/lua.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 | /     pub fn new() -> Lua {
[INFO] [stderr] 63 | |         unsafe { create_lua(false) }
[INFO] [stderr] 64 | |     }
[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] 60 | impl Default for lua::Lua {
[INFO] [stderr] 61 |     fn default() -> Self {
[INFO] [stderr] 62 |         Self::new()
[INFO] [stderr] 63 |     }
[INFO] [stderr] 64 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lua.rs:146:33
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let mut return_source = "return ".as_bytes().to_vec();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"return "`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `multi::Variadic<T>`
[INFO] [stderr]   --> src/multi.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 | /     pub fn new() -> Variadic<T> {
[INFO] [stderr] 90 | |         Variadic(Vec::new())
[INFO] [stderr] 91 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 85 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/lua.rs:566:17
[INFO] [stderr]     |
[INFO] [stderr] 566 |                 key.registry_id as ffi::lua_Integer,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(key.registry_id)`
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/lua.rs:752:5
[INFO] [stderr]     |
[INFO] [stderr] 752 | /     pub(crate) unsafe fn pop_ref<'lua>(&'lua self) -> LuaRef<'lua> {
[INFO] [stderr] 753 | |         let extra = extra_data(self.state);
[INFO] [stderr] 754 | |         ffi::lua_xmove(self.state, (*extra).ref_thread, 1);
[INFO] [stderr] 755 | |         let index = ref_stack_pop(extra);
[INFO] [stderr] 756 | |         LuaRef { lua: self, index }
[INFO] [stderr] 757 | |     }
[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: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/lua.rs:915:13
[INFO] [stderr]     |
[INFO] [stderr] 915 |             ud_index as ffi::lua_Integer,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(ud_index)`
[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: you should consider deriving a `Default` implementation for `multi::Variadic<T>`
[INFO] [stderr]   --> src/multi.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 | /     pub fn new() -> Variadic<T> {
[INFO] [stderr] 90 | |         Variadic(Vec::new())
[INFO] [stderr] 91 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 85 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/scope.rs:30:18
[INFO] [stderr]    |
[INFO] [stderr] 30 |     destructors: RefCell<Vec<Box<Fn() -> Box<Any> + 'scope>>>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/scope.rs:30:18
[INFO] [stderr]    |
[INFO] [stderr] 30 |     destructors: RefCell<Vec<Box<Fn() -> Box<Any> + 'scope>>>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: item `table::Table<'lua>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/table.rs:14:1
[INFO] [stderr]     |
[INFO] [stderr] 14  | / impl<'lua> Table<'lua> {
[INFO] [stderr] 15  | |     /// Sets a key-value pair in the table.
[INFO] [stderr] 16  | |     ///
[INFO] [stderr] 17  | |     /// If the value is `nil`, this will effectively remove the pair.
[INFO] [stderr] ...   |
[INFO] [stderr] 336 | |     }
[INFO] [stderr] 337 | | }
[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: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]    --> src/table.rs:369:84
[INFO] [stderr]     |
[INFO] [stderr] 369 |                       if protect_lua_closure(lua.state, 2, ffi::LUA_MULTRET, |state| {
[INFO] [stderr]     |  ____________________________________________________________________________________^
[INFO] [stderr] 370 | |                         ffi::lua_next(state, -2) != 0
[INFO] [stderr] 371 | |                     })? {
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::block_in_if_condition_stmt)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr] 
[INFO] [stderr] warning: item `table::Table<'lua>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/table.rs:14:1
[INFO] [stderr]     |
[INFO] [stderr] 14  | / impl<'lua> Table<'lua> {
[INFO] [stderr] 15  | |     /// Sets a key-value pair in the table.
[INFO] [stderr] 16  | |     ///
[INFO] [stderr] 17  | |     /// If the value is `nil`, this will effectively remove the pair.
[INFO] [stderr] ...   |
[INFO] [stderr] 336 | |     }
[INFO] [stderr] 337 | | }
[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: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]    --> src/table.rs:369:84
[INFO] [stderr]     |
[INFO] [stderr] 369 |                       if protect_lua_closure(lua.state, 2, ffi::LUA_MULTRET, |state| {
[INFO] [stderr]     |  ____________________________________________________________________________________^
[INFO] [stderr] 370 | |                         ffi::lua_next(state, -2) != 0
[INFO] [stderr] 371 | |                     })? {
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::block_in_if_condition_stmt)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/userdata.rs:385:21
[INFO] [stderr]     |
[INFO] [stderr] 385 |                     lua.userdata_metatable::<T>()? as ffi::lua_Integer,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(lua.userdata_metatable::<T>()?)`
[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/userdata.rs:385:21
[INFO] [stderr]     |
[INFO] [stderr] 385 |                     lua.userdata_metatable::<T>()? as ffi::lua_Integer,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(lua.userdata_metatable::<T>()?)`
[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: you should consider deriving a `Default` implementation for `value::MultiValue<'lua>`
[INFO] [stderr]   --> src/value.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 | /     pub fn new() -> MultiValue<'lua> {
[INFO] [stderr] 85 | |         MultiValue(Vec::new())
[INFO] [stderr] 86 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 80 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the Vec
[INFO] [stderr]    --> src/value.rs:109:19
[INFO] [stderr]     |
[INFO] [stderr] 109 |         (&self.0).into_iter().rev()
[INFO] [stderr]     |                   ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: item `value::MultiValue<'lua>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/value.rs:113:1
[INFO] [stderr]     |
[INFO] [stderr] 113 | / impl<'lua> MultiValue<'lua> {
[INFO] [stderr] 114 | |     pub fn from_vec(mut v: Vec<Value<'lua>>) -> MultiValue<'lua> {
[INFO] [stderr] 115 | |         v.reverse();
[INFO] [stderr] 116 | |         MultiValue(v)
[INFO] [stderr] ...   |
[INFO] [stderr] 143 | |     }
[INFO] [stderr] 144 | | }
[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 deriving a `Default` implementation for `value::MultiValue<'lua>`
[INFO] [stderr]   --> src/value.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 | /     pub fn new() -> MultiValue<'lua> {
[INFO] [stderr] 85 | |         MultiValue(Vec::new())
[INFO] [stderr] 86 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 80 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the Vec
[INFO] [stderr]    --> src/value.rs:109:19
[INFO] [stderr]     |
[INFO] [stderr] 109 |         (&self.0).into_iter().rev()
[INFO] [stderr]     |                   ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: item `value::MultiValue<'lua>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/value.rs:113:1
[INFO] [stderr]     |
[INFO] [stderr] 113 | / impl<'lua> MultiValue<'lua> {
[INFO] [stderr] 114 | |     pub fn from_vec(mut v: Vec<Value<'lua>>) -> MultiValue<'lua> {
[INFO] [stderr] 115 | |         v.reverse();
[INFO] [stderr] 116 | |         MultiValue(v)
[INFO] [stderr] ...   |
[INFO] [stderr] 143 | |     }
[INFO] [stderr] 144 | | }
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]   --> tests/thread.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         Err(_) => panic!("resuming dead coroutine error is not CoroutineInactive kind"),
[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: long literal lacking separators
[INFO] [stderr]    --> tests/tests.rs:653:60
[INFO] [stderr]     |
[INFO] [stderr] 653 |         .create_function(|_, ()| Ok(Variadic::from_iter(1..1000000)))
[INFO] [stderr]     |                                                            ^^^^^^^ help: consider: `1_000_000`
[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/tests.rs:662:39
[INFO] [stderr]     |
[INFO] [stderr] 662 |     let args = Variadic::from_iter(1..1000000);
[INFO] [stderr]     |                                       ^^^^^^^ help: consider: `1_000_000`
[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] warning: long literal lacking separators
[INFO] [stderr]    --> tests/tests.rs:703:48
[INFO] [stderr]     |
[INFO] [stderr] 703 |     assert!(concat.bind(Variadic::from_iter(1..1000000)).is_err());
[INFO] [stderr]     |                                                ^^^^^^^ help: consider: `1_000_000`
[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] warning: long literal lacking separators
[INFO] [stderr]    --> tests/tests.rs:706:51
[INFO] [stderr]     |
[INFO] [stderr] 706 |             .call::<_, ()>(Variadic::from_iter(1..1000000))
[INFO] [stderr]     |                                                   ^^^^^^^ help: consider: `1_000_000`
[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] warning: single-character string constant used as pattern
[INFO] [stderr]   --> tests/tests.rs:33:50
[INFO] [stderr]    |
[INFO] [stderr] 33 |         traceback_output.to_str().unwrap().split("\n").next(),
[INFO] [stderr]    |                                                  ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> tests/tests.rs:232:9
[INFO] [stderr]     |
[INFO] [stderr] 232 |         Err(_) => panic!("error is not RuntimeError kind"),
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> tests/tests.rs:237:9
[INFO] [stderr]     |
[INFO] [stderr] 237 |         Err(_) => panic!("error is not CallbackError kind"),
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> tests/tests.rs:253:9
[INFO] [stderr]     |
[INFO] [stderr] 253 |         Err(_) => panic!("error is not LuaSyntaxError::Syntax kind"),
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> tests/tests.rs:261:9
[INFO] [stderr]     |
[INFO] [stderr] 261 |         Err(_) => panic!("error is not LuaSyntaxError::IncompleteStatement kind"),
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[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] error: strict comparison of f32 or f64
[INFO] [stderr]    --> tests/tests.rs:385:5
[INFO] [stderr]     |
[INFO] [stderr] 385 |     assert_eq!(lua.eval::<_, f64>("1.0", None).unwrap(), 1.0);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> tests/tests.rs:385:5
[INFO] [stderr]     |
[INFO] [stderr] 385 |     assert_eq!(lua.eval::<_, f64>("1.0", None).unwrap(), 1.0);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> tests/tests.rs:389:5
[INFO] [stderr]     |
[INFO] [stderr] 389 |     assert_eq!(lua.eval::<_, f64>("1.5", None).unwrap(), 1.5);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> tests/tests.rs:389:5
[INFO] [stderr]     |
[INFO] [stderr] 389 |     assert_eq!(lua.eval::<_, f64>("1.5", None).unwrap(), 1.5);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> tests/tests.rs:400:9
[INFO] [stderr]     |
[INFO] [stderr] 400 |         f32::MAX as f64
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: try: `f64::from(f32::MAX)`
[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] error: strict comparison of f32 or f64
[INFO] [stderr]    --> tests/tests.rs:398:5
[INFO] [stderr]     |
[INFO] [stderr] 398 | /     assert_eq!(
[INFO] [stderr] 399 | |         lua.unpack::<f64>(lua.pack(f32::MAX).unwrap()).unwrap(),
[INFO] [stderr] 400 | |         f32::MAX as f64
[INFO] [stderr] 401 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> tests/tests.rs:398:5
[INFO] [stderr]     |
[INFO] [stderr] 398 | /     assert_eq!(
[INFO] [stderr] 399 | |         lua.unpack::<f64>(lua.pack(f32::MAX).unwrap()).unwrap(),
[INFO] [stderr] 400 | |         f32::MAX as f64
[INFO] [stderr] 401 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `args`
[INFO] [stderr]    --> tests/tests.rs:721:26
[INFO] [stderr]     |
[INFO] [stderr] 721 |                 for i in 0..args.len() {
[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] 721 |                 for (i, <item>) in args.iter().enumerate() {
[INFO] [stderr]     |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `args`
[INFO] [stderr]    --> tests/tests.rs:752:22
[INFO] [stderr]     |
[INFO] [stderr] 752 |             for i in 0..args.len() {
[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] 752 |             for (i, <item>) in args.iter().enumerate() {
[INFO] [stderr]     |                 ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rlua`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> benches/benchmark.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             || Lua::new(),
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: remove closure as shown: `Lua::new`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> benches/benchmark.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |             || Lua::new(),
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: remove closure as shown: `Lua::new`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> benches/benchmark.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |             || Lua::new(),
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: remove closure as shown: `Lua::new`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> benches/benchmark.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |             || Lua::new(),
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: remove closure as shown: `Lua::new`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> benches/benchmark.rs:181:13
[INFO] [stderr]     |
[INFO] [stderr] 181 |             || Lua::new(),
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: remove closure as shown: `Lua::new`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "14d1cfcc9b84c44d25d0c1af722fc55e3626a8ecd88a98f6b70e9bc01dca487c"`
[INFO] running `"docker" "rm" "-f" "14d1cfcc9b84c44d25d0c1af722fc55e3626a8ecd88a98f6b70e9bc01dca487c"`
[INFO] [stdout] 14d1cfcc9b84c44d25d0c1af722fc55e3626a8ecd88a98f6b70e9bc01dca487c