[INFO] crate dua 1.1.0 is already in cache
[INFO] extracting crate dua 1.1.0 into work/ex/clippy-test-run/sources/stable/reg/dua/1.1.0
[INFO] extracting crate dua 1.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dua/1.1.0
[INFO] validating manifest of dua-1.1.0 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 dua-1.1.0 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 dua-1.1.0
[INFO] finished frobbing dua-1.1.0
[INFO] frobbed toml for dua-1.1.0 written to work/ex/clippy-test-run/sources/stable/reg/dua/1.1.0/Cargo.toml
[INFO] started frobbing dua-1.1.0
[INFO] finished frobbing dua-1.1.0
[INFO] frobbed toml for dua-1.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dua/1.1.0/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 dua-1.1.0 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/dua/1.1.0:/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] 2da2c350175859ca1cac402089bf8f37a5d17f452ce004fa01b82fecb41fea73
[INFO] running `"docker" "start" "-a" "2da2c350175859ca1cac402089bf8f37a5d17f452ce004fa01b82fecb41fea73"`
[INFO] [stderr]     Checking dua v1.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/displayer.rs:19:21
[INFO] [stderr]    |
[INFO] [stderr] 19 |         Displayer { dt: dt, num: num, depth: depth }
[INFO] [stderr]    |                     ^^^^^^ help: replace it with: `dt`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/displayer.rs:19:29
[INFO] [stderr]    |
[INFO] [stderr] 19 |         Displayer { dt: dt, num: num, depth: depth }
[INFO] [stderr]    |                             ^^^^^^^^ help: replace it with: `num`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/displayer.rs:19:39
[INFO] [stderr]    |
[INFO] [stderr] 19 |         Displayer { dt: dt, num: num, depth: depth }
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: replace it with: `depth`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/displayer.rs:19:21
[INFO] [stderr]    |
[INFO] [stderr] 19 |         Displayer { dt: dt, num: num, depth: depth }
[INFO] [stderr]    |                     ^^^^^^ help: replace it with: `dt`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/displayer.rs:19:29
[INFO] [stderr]    |
[INFO] [stderr] 19 |         Displayer { dt: dt, num: num, depth: depth }
[INFO] [stderr]    |                             ^^^^^^^^ help: replace it with: `num`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/displayer.rs:19:39
[INFO] [stderr]    |
[INFO] [stderr] 19 |         Displayer { dt: dt, num: num, depth: depth }
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: replace it with: `depth`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/du.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         return Entry(name, EntryData::File { size: m.len() });
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Entry(name, EntryData::File { size: m.len() })`
[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] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/du.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 | /         return Entry(name, EntryData::Directory {
[INFO] [stderr] 85 | |                                 size: total_size,
[INFO] [stderr] 86 | |                                 children: v });
[INFO] [stderr]    | |_______________________________________________^
[INFO] [stderr]    |
[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] 84 |         Entry(name, EntryData::Directory {
[INFO] [stderr] 85 |                                 size: total_size,
[INFO] [stderr] 86 |                                 children: v })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/du.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         return Entry(name, EntryData::Other);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Entry(name, EntryData::Other)`
[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/du.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         return Entry(name, EntryData::File { size: m.len() });
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Entry(name, EntryData::File { size: m.len() })`
[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] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/du.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 | /         return Entry(name, EntryData::Directory {
[INFO] [stderr] 85 | |                                 size: total_size,
[INFO] [stderr] 86 | |                                 children: v });
[INFO] [stderr]    | |_______________________________________________^
[INFO] [stderr]    |
[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] 84 |         Entry(name, EntryData::Directory {
[INFO] [stderr] 85 |                                 size: total_size,
[INFO] [stderr] 86 |                                 children: v })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/du.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         return Entry(name, EntryData::Other);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Entry(name, EntryData::Other)`
[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: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/displayer.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 | /         match data {
[INFO] [stderr] 69 | |             &EntryData::Directory{..} => { print!("/"); },
[INFO] [stderr] 70 | |             &EntryData::OtherFs      => { print!(" [X]"); },
[INFO] [stderr] 71 | |             &EntryData::Other        => { print!(" [?]"); },
[INFO] [stderr] ...  |
[INFO] [stderr] 81 | |             _ => {}
[INFO] [stderr] 82 | |         };
[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] 68 |         match *data {
[INFO] [stderr] 69 |             EntryData::Directory{..} => { print!("/"); },
[INFO] [stderr] 70 |             EntryData::OtherFs      => { print!(" [X]"); },
[INFO] [stderr] 71 |             EntryData::Other        => { print!(" [?]"); },
[INFO] [stderr] 72 |             EntryData::Error(ref error) => {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/displayer.rs:94:21
[INFO] [stderr]    |
[INFO] [stderr] 94 |                     n = n-1;
[INFO] [stderr]    |                     ^^^^^^^ help: replace it with: `n -= 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/du.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 | /         match data {
[INFO] [stderr] 25 | |             &EntryData::File{size}  => size,
[INFO] [stderr] 26 | |             &EntryData::Directory{size, ..} => size,
[INFO] [stderr] 27 | |             _ => 0
[INFO] [stderr] 28 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[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] 24 |         match *data {
[INFO] [stderr] 25 |             EntryData::File{size}  => size,
[INFO] [stderr] 26 |             EntryData::Directory{size, ..} => size,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/displayer.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 | /         match data {
[INFO] [stderr] 69 | |             &EntryData::Directory{..} => { print!("/"); },
[INFO] [stderr] 70 | |             &EntryData::OtherFs      => { print!(" [X]"); },
[INFO] [stderr] 71 | |             &EntryData::Other        => { print!(" [?]"); },
[INFO] [stderr] ...  |
[INFO] [stderr] 81 | |             _ => {}
[INFO] [stderr] 82 | |         };
[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] 68 |         match *data {
[INFO] [stderr] 69 |             EntryData::Directory{..} => { print!("/"); },
[INFO] [stderr] 70 |             EntryData::OtherFs      => { print!(" [X]"); },
[INFO] [stderr] 71 |             EntryData::Other        => { print!(" [?]"); },
[INFO] [stderr] 72 |             EntryData::Error(ref error) => {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/displayer.rs:94:21
[INFO] [stderr]    |
[INFO] [stderr] 94 |                     n = n-1;
[INFO] [stderr]    |                     ^^^^^^^ help: replace it with: `n -= 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/du.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 | /         match data {
[INFO] [stderr] 25 | |             &EntryData::File{size}  => size,
[INFO] [stderr] 26 | |             &EntryData::Directory{size, ..} => size,
[INFO] [stderr] 27 | |             _ => 0
[INFO] [stderr] 28 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[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] 24 |         match *data {
[INFO] [stderr] 25 |             EntryData::File{size}  => size,
[INFO] [stderr] 26 |             EntryData::Directory{size, ..} => size,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `"docker" "inspect" "2da2c350175859ca1cac402089bf8f37a5d17f452ce004fa01b82fecb41fea73"`
[INFO] running `"docker" "rm" "-f" "2da2c350175859ca1cac402089bf8f37a5d17f452ce004fa01b82fecb41fea73"`
[INFO] [stdout] 2da2c350175859ca1cac402089bf8f37a5d17f452ce004fa01b82fecb41fea73