[INFO] crate auto-enum 0.2.0-alpha1 is already in cache
[INFO] extracting crate auto-enum 0.2.0-alpha1 into work/ex/clippy-test-run/sources/stable/reg/auto-enum/0.2.0-alpha1
[INFO] extracting crate auto-enum 0.2.0-alpha1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/auto-enum/0.2.0-alpha1
[INFO] validating manifest of auto-enum-0.2.0-alpha1 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 auto-enum-0.2.0-alpha1 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 auto-enum-0.2.0-alpha1
[INFO] finished frobbing auto-enum-0.2.0-alpha1
[INFO] frobbed toml for auto-enum-0.2.0-alpha1 written to work/ex/clippy-test-run/sources/stable/reg/auto-enum/0.2.0-alpha1/Cargo.toml
[INFO] started frobbing auto-enum-0.2.0-alpha1
[INFO] finished frobbing auto-enum-0.2.0-alpha1
[INFO] frobbed toml for auto-enum-0.2.0-alpha1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/auto-enum/0.2.0-alpha1/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 auto-enum-0.2.0-alpha1 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/auto-enum/0.2.0-alpha1:/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] ae4e758cf68524ea787a74cde6f2bfbc8565c23b87a800d5c6ee4fdd3d4ca4d7
[INFO] running `"docker" "start" "-a" "ae4e758cf68524ea787a74cde6f2bfbc8565c23b87a800d5c6ee4fdd3d4ca4d7"`
[INFO] [stderr]     Checking checked-enum v0.1.0
[INFO] [stderr]    Compiling auto-enum v0.2.0-alpha1 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/int_eval.rs:29:14
[INFO] [stderr]    |
[INFO] [stderr] 29 |         _ => return Err("Unsupported expression in flag value".into()),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("Unsupported expression in flag value".into())`
[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/int_eval.rs:38:14
[INFO] [stderr]    |
[INFO] [stderr] 38 |         _ => return Err("Unsupported literal type".into()),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("Unsupported literal type".into())`
[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: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/common.rs:41:19
[INFO] [stderr]    |
[INFO] [stderr] 41 |             U8 => val as u8 as u64,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^ help: try: `u64::from(val as u8)`
[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 u16 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/common.rs:42:20
[INFO] [stderr]    |
[INFO] [stderr] 42 |             U16 => val as u16 as u64,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^ help: try: `u64::from(val as u16)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/common.rs:43:20
[INFO] [stderr]    |
[INFO] [stderr] 43 |             U32 => val as u32 as u64,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^ help: try: `u64::from(val as u32)`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/enum_flags.rs:8:32
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn expand_enum_flags(args: &AttributeArgs, input: &Item) -> Result<TokenStream, String> {
[INFO] [stderr]   |                                ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/enum_flags.rs:213:22
[INFO] [stderr]     |
[INFO] [stderr] 213 |                     .unwrap_or(var.ident.span()),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| var.ident.span())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/enum_flags.rs:225:21
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn parse_meta(args: &AttributeArgs) -> Result<MetaInfo, String> {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/int_enums.rs:10:30
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn expand_int_enum(args: &AttributeArgs, input: &Item) -> Result<TokenStream, String> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/int_enums.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 | fn parse_meta(args: &AttributeArgs) -> Result<MetaInfo, String> {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/int_enums.rs:180:33
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 _ => return Err(format!("Unexpected literal for `increment`")),
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Unexpected literal for `increment`".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/int_enums.rs:184:33
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 _ => return Err(format!("Unexpected literal for `decrement`")),
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Unexpected literal for `decrement`".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/int_eval.rs:37:39
[INFO] [stderr]    |
[INFO] [stderr] 37 |         Lit::Byte(b) => Ok(Value::U64(b.value() as u64)),
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^ help: try: `u64::from(b.value())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/int_eval.rs:99:53
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 (Value::U64(v), "u8") => Value::U64(v as u8 as u64),
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^ help: try: `u64::from(v as u8)`
[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 i8 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:100:53
[INFO] [stderr]     |
[INFO] [stderr] 100 |                 (Value::U64(v), "i8") => Value::I64(v as i8 as i64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `i64::from(v as i8)`
[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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:101:54
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 (Value::U64(v), "u16") => Value::U64(v as u16 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u16)`
[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/int_eval.rs:102:54
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 (Value::U64(v), "i16") => Value::I64(v as i16 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i16)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:103:54
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 (Value::U64(v), "u32") => Value::U64(v as u32 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u32)`
[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/int_eval.rs:104:54
[INFO] [stderr]     |
[INFO] [stderr] 104 |                 (Value::U64(v), "i32") => Value::I64(v as i32 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i32)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:111:53
[INFO] [stderr]     |
[INFO] [stderr] 111 |                 (Value::I64(v), "u8") => Value::U64(v as u8 as u64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `u64::from(v as u8)`
[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 i8 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:112:53
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 (Value::I64(v), "i8") => Value::I64(v as i8 as i64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `i64::from(v as i8)`
[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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:113:54
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 (Value::I64(v), "u16") => Value::U64(v as u16 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u16)`
[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/int_eval.rs:114:54
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 (Value::I64(v), "i16") => Value::I64(v as i16 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i16)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:115:54
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 (Value::I64(v), "u32") => Value::U64(v as u32 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u32)`
[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/int_eval.rs:116:54
[INFO] [stderr]     |
[INFO] [stderr] 116 |                 (Value::I64(v), "i32") => Value::I64(v as i32 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i32)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:123:53
[INFO] [stderr]     |
[INFO] [stderr] 123 |                 (Value::F64(v), "u8") => Value::U64(v as u8 as u64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `u64::from(v as u8)`
[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 i8 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:124:53
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 (Value::F64(v), "i8") => Value::I64(v as i8 as i64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `i64::from(v as i8)`
[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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:125:54
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 (Value::F64(v), "u16") => Value::U64(v as u16 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u16)`
[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/int_eval.rs:126:54
[INFO] [stderr]     |
[INFO] [stderr] 126 |                 (Value::F64(v), "i16") => Value::I64(v as i16 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i16)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:127:54
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 (Value::F64(v), "u32") => Value::U64(v as u32 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u32)`
[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/int_eval.rs:128:54
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 (Value::F64(v), "i32") => Value::I64(v as i32 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i32)`
[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: unneeded return statement
[INFO] [stderr]   --> src/int_eval.rs:29:14
[INFO] [stderr]    |
[INFO] [stderr] 29 |         _ => return Err("Unsupported expression in flag value".into()),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("Unsupported expression in flag value".into())`
[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/int_eval.rs:38:14
[INFO] [stderr]    |
[INFO] [stderr] 38 |         _ => return Err("Unsupported literal type".into()),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("Unsupported literal type".into())`
[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: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/common.rs:41:19
[INFO] [stderr]    |
[INFO] [stderr] 41 |             U8 => val as u8 as u64,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^ help: try: `u64::from(val as u8)`
[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 u16 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/common.rs:42:20
[INFO] [stderr]    |
[INFO] [stderr] 42 |             U16 => val as u16 as u64,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^ help: try: `u64::from(val as u16)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/common.rs:43:20
[INFO] [stderr]    |
[INFO] [stderr] 43 |             U32 => val as u32 as u64,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^ help: try: `u64::from(val as u32)`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/enum_flags.rs:8:32
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn expand_enum_flags(args: &AttributeArgs, input: &Item) -> Result<TokenStream, String> {
[INFO] [stderr]   |                                ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/enum_flags.rs:213:22
[INFO] [stderr]     |
[INFO] [stderr] 213 |                     .unwrap_or(var.ident.span()),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| var.ident.span())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/enum_flags.rs:225:21
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn parse_meta(args: &AttributeArgs) -> Result<MetaInfo, String> {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/int_enums.rs:10:30
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn expand_int_enum(args: &AttributeArgs, input: &Item) -> Result<TokenStream, String> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/int_enums.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 | fn parse_meta(args: &AttributeArgs) -> Result<MetaInfo, String> {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/int_enums.rs:180:33
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 _ => return Err(format!("Unexpected literal for `increment`")),
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Unexpected literal for `increment`".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/int_enums.rs:184:33
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 _ => return Err(format!("Unexpected literal for `decrement`")),
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Unexpected literal for `decrement`".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/int_eval.rs:37:39
[INFO] [stderr]    |
[INFO] [stderr] 37 |         Lit::Byte(b) => Ok(Value::U64(b.value() as u64)),
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^ help: try: `u64::from(b.value())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/int_eval.rs:99:53
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 (Value::U64(v), "u8") => Value::U64(v as u8 as u64),
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^ help: try: `u64::from(v as u8)`
[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 i8 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:100:53
[INFO] [stderr]     |
[INFO] [stderr] 100 |                 (Value::U64(v), "i8") => Value::I64(v as i8 as i64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `i64::from(v as i8)`
[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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:101:54
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 (Value::U64(v), "u16") => Value::U64(v as u16 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u16)`
[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/int_eval.rs:102:54
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 (Value::U64(v), "i16") => Value::I64(v as i16 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i16)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:103:54
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 (Value::U64(v), "u32") => Value::U64(v as u32 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u32)`
[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/int_eval.rs:104:54
[INFO] [stderr]     |
[INFO] [stderr] 104 |                 (Value::U64(v), "i32") => Value::I64(v as i32 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i32)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:111:53
[INFO] [stderr]     |
[INFO] [stderr] 111 |                 (Value::I64(v), "u8") => Value::U64(v as u8 as u64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `u64::from(v as u8)`
[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 i8 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:112:53
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 (Value::I64(v), "i8") => Value::I64(v as i8 as i64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `i64::from(v as i8)`
[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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:113:54
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 (Value::I64(v), "u16") => Value::U64(v as u16 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u16)`
[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/int_eval.rs:114:54
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 (Value::I64(v), "i16") => Value::I64(v as i16 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i16)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:115:54
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 (Value::I64(v), "u32") => Value::U64(v as u32 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u32)`
[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/int_eval.rs:116:54
[INFO] [stderr]     |
[INFO] [stderr] 116 |                 (Value::I64(v), "i32") => Value::I64(v as i32 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i32)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:123:53
[INFO] [stderr]     |
[INFO] [stderr] 123 |                 (Value::F64(v), "u8") => Value::U64(v as u8 as u64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `u64::from(v as u8)`
[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 i8 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:124:53
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 (Value::F64(v), "i8") => Value::I64(v as i8 as i64),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: try: `i64::from(v as i8)`
[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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:125:54
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 (Value::F64(v), "u16") => Value::U64(v as u16 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u16)`
[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/int_eval.rs:126:54
[INFO] [stderr]     |
[INFO] [stderr] 126 |                 (Value::F64(v), "i16") => Value::I64(v as i16 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i16)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/int_eval.rs:127:54
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 (Value::F64(v), "u32") => Value::U64(v as u32 as u64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `u64::from(v as u32)`
[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/int_eval.rs:128:54
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 (Value::F64(v), "i32") => Value::I64(v as i32 as i64),
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: try: `i64::from(v as i32)`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 8.34s
[INFO] running `"docker" "inspect" "ae4e758cf68524ea787a74cde6f2bfbc8565c23b87a800d5c6ee4fdd3d4ca4d7"`
[INFO] running `"docker" "rm" "-f" "ae4e758cf68524ea787a74cde6f2bfbc8565c23b87a800d5c6ee4fdd3d4ca4d7"`
[INFO] [stdout] ae4e758cf68524ea787a74cde6f2bfbc8565c23b87a800d5c6ee4fdd3d4ca4d7