[INFO] crate cpp_syn 0.12.0 is already in cache [INFO] extracting crate cpp_syn 0.12.0 into work/ex/clippy-test-run/sources/stable/reg/cpp_syn/0.12.0 [INFO] extracting crate cpp_syn 0.12.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cpp_syn/0.12.0 [INFO] validating manifest of cpp_syn-0.12.0 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 cpp_syn-0.12.0 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 cpp_syn-0.12.0 [INFO] removed path dependency cpp_synom from cpp_syn-0.12.0 [INFO] finished frobbing cpp_syn-0.12.0 [INFO] frobbed toml for cpp_syn-0.12.0 written to work/ex/clippy-test-run/sources/stable/reg/cpp_syn/0.12.0/Cargo.toml [INFO] started frobbing cpp_syn-0.12.0 [INFO] removed path dependency cpp_synom from cpp_syn-0.12.0 [INFO] finished frobbing cpp_syn-0.12.0 [INFO] frobbed toml for cpp_syn-0.12.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cpp_syn/0.12.0/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 cpp_syn-0.12.0 against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/cpp_syn/0.12.0:/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] c13e994e4f753fb010dd4769358a2cc02feb2e94015a7c80e90d45411e298bae [INFO] running `"docker" "start" "-a" "c13e994e4f753fb010dd4769358a2cc02feb2e94015a7c80e90d45411e298bae"` [INFO] [stderr] Checking syntex_pos v0.52.0 [INFO] [stderr] Checking cpp_syn v0.12.0 (/opt/crater/workdir) [INFO] [stderr] warning: 5th binding whose name is just one char [INFO] [stderr] --> src/escape.rs:269:9 [INFO] [stderr] | [INFO] [stderr] 269 | let e = next_ch!(chars @ '0'...'9' | 'a'...'f' | 'A'...'F' | '}'); [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::many_single_char_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names [INFO] [stderr] [INFO] [stderr] warning: 6th binding whose name is just one char [INFO] [stderr] --> src/escape.rs:273:9 [INFO] [stderr] | [INFO] [stderr] 273 | let f = next_ch!(chars @ '0'...'9' | 'a'...'f' | 'A'...'F' | '}'); [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names [INFO] [stderr] [INFO] [stderr] Checking syntex_errors v0.52.0 [INFO] [stderr] Checking syntex_syntax v0.52.0 [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/attr.rs:84:27 [INFO] [stderr] | [INFO] [stderr] 84 | fn is_outer(attr: &&Attribute) -> bool { [INFO] [stderr] | ^^^^^^^^^^^ help: consider passing by value instead: `&Attribute` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/attr.rs:91:27 [INFO] [stderr] | [INFO] [stderr] 91 | fn is_inner(attr: &&Attribute) -> bool { [INFO] [stderr] | ^^^^^^^^^^^ help: consider passing by value instead: `&Attribute` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this loop could be written as a `for` loop [INFO] [stderr] --> src/ident.rs:92:35 [INFO] [stderr] | [INFO] [stderr] 92 | while let Some((i, ch)) = chars.next() { [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `for (i, ch) in chars { .. }` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::while_let_on_iterator)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator [INFO] [stderr] [INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change [INFO] [stderr] --> src/lit.rs:131:44 [INFO] [stderr] | [INFO] [stderr] 131 | node: LitKind::Int(input as u64, $syn_type), [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `u64::from(input)` [INFO] [stderr] ... [INFO] [stderr] 152 | / impl_from_for_lit! {Int, [ [INFO] [stderr] 153 | | isize => IntTy::Isize, [INFO] [stderr] 154 | | i8 => IntTy::I8, [INFO] [stderr] 155 | | i16 => IntTy::I16, [INFO] [stderr] ... | [INFO] [stderr] 162 | | u64 => IntTy::U64 [INFO] [stderr] 163 | | ]} [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 u16 to u64 may become silently lossy if types change [INFO] [stderr] --> src/lit.rs:131:44 [INFO] [stderr] | [INFO] [stderr] 131 | node: LitKind::Int(input as u64, $syn_type), [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `u64::from(input)` [INFO] [stderr] ... [INFO] [stderr] 152 | / impl_from_for_lit! {Int, [ [INFO] [stderr] 153 | | isize => IntTy::Isize, [INFO] [stderr] 154 | | i8 => IntTy::I8, [INFO] [stderr] 155 | | i16 => IntTy::I16, [INFO] [stderr] ... | [INFO] [stderr] 162 | | u64 => IntTy::U64 [INFO] [stderr] 163 | | ]} [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 u64 may become silently lossy if types change [INFO] [stderr] --> src/lit.rs:131:44 [INFO] [stderr] | [INFO] [stderr] 131 | node: LitKind::Int(input as u64, $syn_type), [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `u64::from(input)` [INFO] [stderr] ... [INFO] [stderr] 152 | / impl_from_for_lit! {Int, [ [INFO] [stderr] 153 | | isize => IntTy::Isize, [INFO] [stderr] 154 | | i8 => IntTy::I8, [INFO] [stderr] 155 | | i16 => IntTy::I16, [INFO] [stderr] ... | [INFO] [stderr] 162 | | u64 => IntTy::U64 [INFO] [stderr] 163 | | ]} [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 u64 may become silently lossy if types change [INFO] [stderr] --> src/lit.rs:415:32 [INFO] [stderr] | [INFO] [stderr] 415 | b'0'...b'9' => (b - b'0') as u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: try: `u64::from(b - b'0')` [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/lit.rs:416:37 [INFO] [stderr] | [INFO] [stderr] 416 | b'a'...b'f' => 10 + (b - b'a') as u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: try: `u64::from(b - b'a')` [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/lit.rs:417:37 [INFO] [stderr] | [INFO] [stderr] 417 | b'A'...b'F' => 10 + (b - b'A') as u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: try: `u64::from(b - b'A')` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/mac.rs:334:17 [INFO] [stderr] | [INFO] [stderr] 334 | fn open(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/mac.rs:342:18 [INFO] [stderr] | [INFO] [stderr] 342 | fn close(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/mac.rs:403:15 [INFO] [stderr] | [INFO] [stderr] 403 | fn op(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/mac.rs:418:22 [INFO] [stderr] | [INFO] [stderr] 418 | fn assign_op(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/op.rs:131:19 [INFO] [stderr] | [INFO] [stderr] 131 | pub fn op(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/op.rs:154:26 [INFO] [stderr] | [INFO] [stderr] 154 | pub fn assign_op(&self) -> Option<&'static str> { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/op.rs:178:19 [INFO] [stderr] | [INFO] [stderr] 178 | pub fn op(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: 5th binding whose name is just one char [INFO] [stderr] --> src/escape.rs:269:9 [INFO] [stderr] | [INFO] [stderr] 269 | let e = next_ch!(chars @ '0'...'9' | 'a'...'f' | 'A'...'F' | '}'); [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::many_single_char_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names [INFO] [stderr] [INFO] [stderr] warning: 6th binding whose name is just one char [INFO] [stderr] --> src/escape.rs:273:9 [INFO] [stderr] | [INFO] [stderr] 273 | let f = next_ch!(chars @ '0'...'9' | 'a'...'f' | 'A'...'F' | '}'); [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/attr.rs:84:27 [INFO] [stderr] | [INFO] [stderr] 84 | fn is_outer(attr: &&Attribute) -> bool { [INFO] [stderr] | ^^^^^^^^^^^ help: consider passing by value instead: `&Attribute` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/attr.rs:91:27 [INFO] [stderr] | [INFO] [stderr] 91 | fn is_inner(attr: &&Attribute) -> bool { [INFO] [stderr] | ^^^^^^^^^^^ help: consider passing by value instead: `&Attribute` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this loop could be written as a `for` loop [INFO] [stderr] --> src/ident.rs:92:35 [INFO] [stderr] | [INFO] [stderr] 92 | while let Some((i, ch)) = chars.next() { [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `for (i, ch) in chars { .. }` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::while_let_on_iterator)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator [INFO] [stderr] [INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change [INFO] [stderr] --> src/lit.rs:131:44 [INFO] [stderr] | [INFO] [stderr] 131 | node: LitKind::Int(input as u64, $syn_type), [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `u64::from(input)` [INFO] [stderr] ... [INFO] [stderr] 152 | / impl_from_for_lit! {Int, [ [INFO] [stderr] 153 | | isize => IntTy::Isize, [INFO] [stderr] 154 | | i8 => IntTy::I8, [INFO] [stderr] 155 | | i16 => IntTy::I16, [INFO] [stderr] ... | [INFO] [stderr] 162 | | u64 => IntTy::U64 [INFO] [stderr] 163 | | ]} [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 u16 to u64 may become silently lossy if types change [INFO] [stderr] --> src/lit.rs:131:44 [INFO] [stderr] | [INFO] [stderr] 131 | node: LitKind::Int(input as u64, $syn_type), [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `u64::from(input)` [INFO] [stderr] ... [INFO] [stderr] 152 | / impl_from_for_lit! {Int, [ [INFO] [stderr] 153 | | isize => IntTy::Isize, [INFO] [stderr] 154 | | i8 => IntTy::I8, [INFO] [stderr] 155 | | i16 => IntTy::I16, [INFO] [stderr] ... | [INFO] [stderr] 162 | | u64 => IntTy::U64 [INFO] [stderr] 163 | | ]} [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 u64 may become silently lossy if types change [INFO] [stderr] --> src/lit.rs:131:44 [INFO] [stderr] | [INFO] [stderr] 131 | node: LitKind::Int(input as u64, $syn_type), [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `u64::from(input)` [INFO] [stderr] ... [INFO] [stderr] 152 | / impl_from_for_lit! {Int, [ [INFO] [stderr] 153 | | isize => IntTy::Isize, [INFO] [stderr] 154 | | i8 => IntTy::I8, [INFO] [stderr] 155 | | i16 => IntTy::I16, [INFO] [stderr] ... | [INFO] [stderr] 162 | | u64 => IntTy::U64 [INFO] [stderr] 163 | | ]} [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 u64 may become silently lossy if types change [INFO] [stderr] --> src/lit.rs:415:32 [INFO] [stderr] | [INFO] [stderr] 415 | b'0'...b'9' => (b - b'0') as u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: try: `u64::from(b - b'0')` [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/lit.rs:416:37 [INFO] [stderr] | [INFO] [stderr] 416 | b'a'...b'f' => 10 + (b - b'a') as u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: try: `u64::from(b - b'a')` [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/lit.rs:417:37 [INFO] [stderr] | [INFO] [stderr] 417 | b'A'...b'F' => 10 + (b - b'A') as u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: try: `u64::from(b - b'A')` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/mac.rs:334:17 [INFO] [stderr] | [INFO] [stderr] 334 | fn open(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/mac.rs:342:18 [INFO] [stderr] | [INFO] [stderr] 342 | fn close(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/mac.rs:403:15 [INFO] [stderr] | [INFO] [stderr] 403 | fn op(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/mac.rs:418:22 [INFO] [stderr] | [INFO] [stderr] 418 | fn assign_op(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/op.rs:131:19 [INFO] [stderr] | [INFO] [stderr] 131 | pub fn op(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/op.rs:154:26 [INFO] [stderr] | [INFO] [stderr] 154 | pub fn assign_op(&self) -> Option<&'static str> { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/op.rs:178:19 [INFO] [stderr] | [INFO] [stderr] 178 | pub fn op(&self) -> &'static str { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 19.37s [INFO] running `"docker" "inspect" "c13e994e4f753fb010dd4769358a2cc02feb2e94015a7c80e90d45411e298bae"` [INFO] running `"docker" "rm" "-f" "c13e994e4f753fb010dd4769358a2cc02feb2e94015a7c80e90d45411e298bae"` [INFO] [stdout] c13e994e4f753fb010dd4769358a2cc02feb2e94015a7c80e90d45411e298bae