[INFO] crate debug_stub_derive 0.3.0 is already in cache [INFO] extracting crate debug_stub_derive 0.3.0 into work/ex/clippy-test-run/sources/stable/reg/debug_stub_derive/0.3.0 [INFO] extracting crate debug_stub_derive 0.3.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/debug_stub_derive/0.3.0 [INFO] validating manifest of debug_stub_derive-0.3.0 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 debug_stub_derive-0.3.0 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 debug_stub_derive-0.3.0 [INFO] finished frobbing debug_stub_derive-0.3.0 [INFO] frobbed toml for debug_stub_derive-0.3.0 written to work/ex/clippy-test-run/sources/stable/reg/debug_stub_derive/0.3.0/Cargo.toml [INFO] started frobbing debug_stub_derive-0.3.0 [INFO] finished frobbing debug_stub_derive-0.3.0 [INFO] frobbed toml for debug_stub_derive-0.3.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/debug_stub_derive/0.3.0/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 debug_stub_derive-0.3.0 against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/debug_stub_derive/0.3.0:/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] 78aa58801a8f84ac84e924be8443006d83bac1af47060d49ac3774915d5723bf [INFO] running `"docker" "start" "-a" "78aa58801a8f84ac84e924be8443006d83bac1af47060d49ac3774915d5723bf"` [INFO] [stderr] Compiling debug_stub_derive v0.3.0 (/opt/crater/workdir) [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/lib.rs:324:1 [INFO] [stderr] | [INFO] [stderr] 324 | / fn extract_named_value_attrs<'a>(items: &'a [syn::NestedMetaItem]) -> (Option<&'a str>, Option<&'a str>, Option<&'a str>) { [INFO] [stderr] 325 | | [INFO] [stderr] 326 | | let (mut ok, mut err, mut some) = (None, None, None); [INFO] [stderr] 327 | | [INFO] [stderr] ... | [INFO] [stderr] 346 | | [INFO] [stderr] 347 | | } [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: you don't need to add `&` to all patterns [INFO] [stderr] --> src/lib.rs:329:9 [INFO] [stderr] | [INFO] [stderr] 329 | / if let &syn::NestedMetaItem::MetaItem( [INFO] [stderr] 330 | | syn::MetaItem::NameValue(ref attr_name, syn::Lit::Str(ref value, _)) [INFO] [stderr] 331 | | [INFO] [stderr] 332 | | ) = item { [INFO] [stderr] ... | [INFO] [stderr] 341 | | } [INFO] [stderr] 342 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_ref_pats)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 329 | if let syn::NestedMetaItem::MetaItem( [INFO] [stderr] 330 | syn::MetaItem::NameValue(ref attr_name, syn::Lit::Str(ref value, _)) [INFO] [stderr] 331 | [INFO] [stderr] 332 | ) = *item { [INFO] [stderr] | [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/lib.rs:324:1 [INFO] [stderr] | [INFO] [stderr] 324 | / fn extract_named_value_attrs<'a>(items: &'a [syn::NestedMetaItem]) -> (Option<&'a str>, Option<&'a str>, Option<&'a str>) { [INFO] [stderr] 325 | | [INFO] [stderr] 326 | | let (mut ok, mut err, mut some) = (None, None, None); [INFO] [stderr] 327 | | [INFO] [stderr] ... | [INFO] [stderr] 346 | | [INFO] [stderr] 347 | | } [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: you don't need to add `&` to all patterns [INFO] [stderr] --> src/lib.rs:329:9 [INFO] [stderr] | [INFO] [stderr] 329 | / if let &syn::NestedMetaItem::MetaItem( [INFO] [stderr] 330 | | syn::MetaItem::NameValue(ref attr_name, syn::Lit::Str(ref value, _)) [INFO] [stderr] 331 | | [INFO] [stderr] 332 | | ) = item { [INFO] [stderr] ... | [INFO] [stderr] 341 | | } [INFO] [stderr] 342 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_ref_pats)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 329 | if let syn::NestedMetaItem::MetaItem( [INFO] [stderr] 330 | syn::MetaItem::NameValue(ref attr_name, syn::Lit::Str(ref value, _)) [INFO] [stderr] 331 | [INFO] [stderr] 332 | ) = *item { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> tests/lib.rs:413:9 [INFO] [stderr] | [INFO] [stderr] 413 | let f = { [INFO] [stderr] | ^ help: consider using `_f` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `string` [INFO] [stderr] --> tests/lib.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | string: String [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `b` [INFO] [stderr] --> tests/lib.rs:62:9 [INFO] [stderr] | [INFO] [stderr] 62 | b: StructWithoutDebug [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `string` [INFO] [stderr] --> tests/lib.rs:558:9 [INFO] [stderr] | [INFO] [stderr] 558 | string: String [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `b` [INFO] [stderr] --> tests/lib.rs:572:13 [INFO] [stderr] | [INFO] [stderr] 572 | b: StructWithoutDebug, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.35s [INFO] running `"docker" "inspect" "78aa58801a8f84ac84e924be8443006d83bac1af47060d49ac3774915d5723bf"` [INFO] running `"docker" "rm" "-f" "78aa58801a8f84ac84e924be8443006d83bac1af47060d49ac3774915d5723bf"` [INFO] [stdout] 78aa58801a8f84ac84e924be8443006d83bac1af47060d49ac3774915d5723bf