[INFO] crate from_int_derive 0.1.2 is already in cache
[INFO] extracting crate from_int_derive 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/from_int_derive/0.1.2
[INFO] extracting crate from_int_derive 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/from_int_derive/0.1.2
[INFO] validating manifest of from_int_derive-0.1.2 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 from_int_derive-0.1.2 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 from_int_derive-0.1.2
[INFO] finished frobbing from_int_derive-0.1.2
[INFO] frobbed toml for from_int_derive-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/from_int_derive/0.1.2/Cargo.toml
[INFO] started frobbing from_int_derive-0.1.2
[INFO] finished frobbing from_int_derive-0.1.2
[INFO] frobbed toml for from_int_derive-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/from_int_derive/0.1.2/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 from_int_derive-0.1.2 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/from_int_derive/0.1.2:/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 -Dclippy::into_iter_on_array" "-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] 51b9901d27b7f30dce35b9d3d1fceb716bc3394b0d9222dc835b356c417d8b0b
[INFO] running `"docker" "start" "-a" "51b9901d27b7f30dce35b9d3d1fceb716bc3394b0d9222dc835b356c417d8b0b"`
[INFO] [stderr]     Checking proc-macro2 v0.2.3
[INFO] [stderr]     Checking quote v0.4.2
[INFO] [stderr]     Checking syn v0.12.15
[INFO] [stderr]     Checking from_int_derive v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/lib.rs:49:11
[INFO] [stderr]    |
[INFO] [stderr] 49 |     name: &syn::Ident, 
[INFO] [stderr]    |           ^^^^^^^^^^^ help: consider passing by value instead: `syn::Ident`
[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: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/lib.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         match &variant.discriminant {
[INFO] [stderr] 61 | |             &Some((_, syn::Expr::Lit(ref lit))) => { // extract inner data
[INFO] [stderr] 62 | |                 match lit.lit {
[INFO] [stderr] 63 | |                     syn::Lit::Int(ref _lit) => {
[INFO] [stderr] ...  |
[INFO] [stderr] 74 | |             _ => panic!("from_int: Enum variants must be literal integers!")
[INFO] [stderr] 75 | |         }
[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] 60 |         match variant.discriminant {
[INFO] [stderr] 61 |             Some((_, syn::Expr::Lit(ref lit))) => { // extract inner data
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/lib.rs:49:11
[INFO] [stderr]    |
[INFO] [stderr] 49 |     name: &syn::Ident, 
[INFO] [stderr]    |           ^^^^^^^^^^^ help: consider passing by value instead: `syn::Ident`
[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: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/lib.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         match &variant.discriminant {
[INFO] [stderr] 61 | |             &Some((_, syn::Expr::Lit(ref lit))) => { // extract inner data
[INFO] [stderr] 62 | |                 match lit.lit {
[INFO] [stderr] 63 | |                     syn::Lit::Int(ref _lit) => {
[INFO] [stderr] ...  |
[INFO] [stderr] 74 | |             _ => panic!("from_int: Enum variants must be literal integers!")
[INFO] [stderr] 75 | |         }
[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] 60 |         match variant.discriminant {
[INFO] [stderr] 61 |             Some((_, syn::Expr::Lit(ref lit))) => { // extract inner data
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `"docker" "inspect" "51b9901d27b7f30dce35b9d3d1fceb716bc3394b0d9222dc835b356c417d8b0b"`
[INFO] running `"docker" "rm" "-f" "51b9901d27b7f30dce35b9d3d1fceb716bc3394b0d9222dc835b356c417d8b0b"`
[INFO] [stdout] 51b9901d27b7f30dce35b9d3d1fceb716bc3394b0d9222dc835b356c417d8b0b