[INFO] crate rlua-table-derive 0.1.0 is already in cache
[INFO] extracting crate rlua-table-derive 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/rlua-table-derive/0.1.0
[INFO] extracting crate rlua-table-derive 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rlua-table-derive/0.1.0
[INFO] validating manifest of rlua-table-derive-0.1.0 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 rlua-table-derive-0.1.0 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 rlua-table-derive-0.1.0
[INFO] finished frobbing rlua-table-derive-0.1.0
[INFO] frobbed toml for rlua-table-derive-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/rlua-table-derive/0.1.0/Cargo.toml
[INFO] started frobbing rlua-table-derive-0.1.0
[INFO] finished frobbing rlua-table-derive-0.1.0
[INFO] frobbed toml for rlua-table-derive-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rlua-table-derive/0.1.0/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 rlua-table-derive-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/rlua-table-derive/0.1.0:/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] ae743ca4489d4f5ab26b2bc9282966859e10050b1533549faee47c9e045f184a
[INFO] running `"docker" "start" "-a" "ae743ca4489d4f5ab26b2bc9282966859e10050b1533549faee47c9e045f184a"`
[INFO] [stderr]    Compiling rlua v0.10.2
[INFO] [stderr]     Checking rlua-table-derive v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/lib.rs:25:25
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     for ref field in fields.iter() {
[INFO] [stderr]    |                         ^^^^^^^^^    ------------- help: try: `let field = &fields.iter();`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/lib.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 | /                         match &field.ident {
[INFO] [stderr] 27 | |                             &Some(ref ident) => {
[INFO] [stderr] 28 | |                                 idents.push(ident.clone());
[INFO] [stderr] 29 | |                             },
[INFO] [stderr] 30 | |                             &None => panic!("The structure is missing a field identity"),
[INFO] [stderr] 31 | |                         }
[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: try
[INFO] [stderr]    |
[INFO] [stderr] 26 |                         match field.ident {
[INFO] [stderr] 27 |                             Some(ref ident) => {
[INFO] [stderr] 28 |                                 idents.push(ident.clone());
[INFO] [stderr] 29 |                             },
[INFO] [stderr] 30 |                             None => panic!("The structure is missing a field identity"),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/lib.rs:25:25
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     for ref field in fields.iter() {
[INFO] [stderr]    |                         ^^^^^^^^^    ------------- help: try: `let field = &fields.iter();`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/lib.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 | /                         match &field.ident {
[INFO] [stderr] 27 | |                             &Some(ref ident) => {
[INFO] [stderr] 28 | |                                 idents.push(ident.clone());
[INFO] [stderr] 29 | |                             },
[INFO] [stderr] 30 | |                             &None => panic!("The structure is missing a field identity"),
[INFO] [stderr] 31 | |                         }
[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: try
[INFO] [stderr]    |
[INFO] [stderr] 26 |                         match field.ident {
[INFO] [stderr] 27 |                             Some(ref ident) => {
[INFO] [stderr] 28 |                                 idents.push(ident.clone());
[INFO] [stderr] 29 |                             },
[INFO] [stderr] 30 |                             None => panic!("The structure is missing a field identity"),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.32s
[INFO] running `"docker" "inspect" "ae743ca4489d4f5ab26b2bc9282966859e10050b1533549faee47c9e045f184a"`
[INFO] running `"docker" "rm" "-f" "ae743ca4489d4f5ab26b2bc9282966859e10050b1533549faee47c9e045f184a"`
[INFO] [stdout] ae743ca4489d4f5ab26b2bc9282966859e10050b1533549faee47c9e045f184a