[INFO] crate parse_tree 0.0.7 is already in cache
[INFO] extracting crate parse_tree 0.0.7 into work/ex/clippy-test-run/sources/stable/reg/parse_tree/0.0.7
[INFO] extracting crate parse_tree 0.0.7 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/parse_tree/0.0.7
[INFO] validating manifest of parse_tree-0.0.7 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 parse_tree-0.0.7 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 parse_tree-0.0.7
[INFO] finished frobbing parse_tree-0.0.7
[INFO] frobbed toml for parse_tree-0.0.7 written to work/ex/clippy-test-run/sources/stable/reg/parse_tree/0.0.7/Cargo.toml
[INFO] started frobbing parse_tree-0.0.7
[INFO] finished frobbing parse_tree-0.0.7
[INFO] frobbed toml for parse_tree-0.0.7 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/parse_tree/0.0.7/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 parse_tree-0.0.7 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-4/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/parse_tree/0.0.7:/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] cf003af86de872378716d4a0981ecf1b1e7a1d582fefdf18c2798759389760e6
[INFO] running `"docker" "start" "-a" "cf003af86de872378716d4a0981ecf1b1e7a1d582fefdf18c2798759389760e6"`
[INFO] [stderr]     Checking text_unit v0.1.6
[INFO] [stderr]     Checking parse_tree v0.0.7 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/algo/search.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 | /         return if let Some(right) = right {
[INFO] [stderr] 53 | |             match (go(tree, left, offset), go(tree, right, offset)) {
[INFO] [stderr] 54 | |                 (LeafAtOffset::Single(left), LeafAtOffset::Single(right)) =>
[INFO] [stderr] 55 | |                     LeafAtOffset::Between(left, right),
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |             go(tree, left, offset)
[INFO] [stderr] 60 | |         };
[INFO] [stderr]    | |__________^
[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] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 52 |         if let Some(right) = right {
[INFO] [stderr] 53 |             match (go(tree, left, offset), go(tree, right, offset)) {
[INFO] [stderr] 54 |                 (LeafAtOffset::Single(left), LeafAtOffset::Single(right)) =>
[INFO] [stderr] 55 |                     LeafAtOffset::Between(left, right),
[INFO] [stderr] 56 |                 _ => unreachable!()
[INFO] [stderr] 57 |             }
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/algo/mod.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     return dumper.buff;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `dumper.buff`
[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: unneeded return statement
[INFO] [stderr]   --> src/algo/search.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 | /         return if let Some(right) = right {
[INFO] [stderr] 53 | |             match (go(tree, left, offset), go(tree, right, offset)) {
[INFO] [stderr] 54 | |                 (LeafAtOffset::Single(left), LeafAtOffset::Single(right)) =>
[INFO] [stderr] 55 | |                     LeafAtOffset::Between(left, right),
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |             go(tree, left, offset)
[INFO] [stderr] 60 | |         };
[INFO] [stderr]    | |__________^
[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] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 52 |         if let Some(right) = right {
[INFO] [stderr] 53 |             match (go(tree, left, offset), go(tree, right, offset)) {
[INFO] [stderr] 54 |                 (LeafAtOffset::Single(left), LeafAtOffset::Single(right)) =>
[INFO] [stderr] 55 |                     LeafAtOffset::Between(left, right),
[INFO] [stderr] 56 |                 _ => unreachable!()
[INFO] [stderr] 57 |             }
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/algo/mod.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     return dumper.buff;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `dumper.buff`
[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: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/algo/mod.rs:21:19
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn debug_dump<'t>(
[INFO] [stderr]    |                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::extra_unused_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/algo/mod.rs:21:19
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn debug_dump<'t>(
[INFO] [stderr]    |                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::extra_unused_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `"docker" "inspect" "cf003af86de872378716d4a0981ecf1b1e7a1d582fefdf18c2798759389760e6"`
[INFO] running `"docker" "rm" "-f" "cf003af86de872378716d4a0981ecf1b1e7a1d582fefdf18c2798759389760e6"`
[INFO] [stdout] cf003af86de872378716d4a0981ecf1b1e7a1d582fefdf18c2798759389760e6