[INFO] crate genio 0.1.0 is already in cache
[INFO] extracting crate genio 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/genio/0.1.0
[INFO] extracting crate genio 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/genio/0.1.0
[INFO] validating manifest of genio-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 genio-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 genio-0.1.0
[INFO] finished frobbing genio-0.1.0
[INFO] frobbed toml for genio-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/genio/0.1.0/Cargo.toml
[INFO] started frobbing genio-0.1.0
[INFO] finished frobbing genio-0.1.0
[INFO] frobbed toml for genio-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/genio/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 genio-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-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/genio/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] 89ad04fa2b03b51082a1792bbe7106563c3b06afb9f5682ba3238ce60ade3b14
[INFO] running `"docker" "start" "-a" "89ad04fa2b03b51082a1792bbe7106563c3b06afb9f5682ba3238ce60ade3b14"`
[INFO] [stderr]     Checking genio v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/util/chain.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             first: first,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `first`
[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/util/chain.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             second: second,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `second`
[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/util/write_trunc.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |             writer: writer,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `writer`
[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/util/bytes.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |             reader: reader,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `reader`
[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/util/chain.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             first: first,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `first`
[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/util/chain.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             second: second,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `second`
[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/util/write_trunc.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |             writer: writer,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `writer`
[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/util/bytes.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |             reader: reader,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `reader`
[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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/util/repeat_bytes.rs:25:48
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let buf = { let tmp = &mut buf[amt..]; tmp };
[INFO] [stderr]    |                                                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/util/repeat_bytes.rs:25:31
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let buf = { let tmp = &mut buf[amt..]; tmp };
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |             return Ok(());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/util/repeat_bytes.rs:25:48
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let buf = { let tmp = &mut buf[amt..]; tmp };
[INFO] [stderr]    |                                                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/util/repeat_bytes.rs:25:31
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let buf = { let tmp = &mut buf[amt..]; tmp };
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |             return Ok(());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/util/repeat_bytes.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn read(&mut self, mut buf: &mut [u8]) -> Result<usize, Self::ReadError> {
[INFO] [stderr]    |                        ----^^^
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/util/write_trunc.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |         if buf.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!buf.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/util/write_trunc.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |         if buf.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!buf.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/util/repeat_bytes.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn read(&mut self, mut buf: &mut [u8]) -> Result<usize, Self::ReadError> {
[INFO] [stderr]    |                        ----^^^
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/util/write_trunc.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |         if buf.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!buf.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/util/write_trunc.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |         if buf.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!buf.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "89ad04fa2b03b51082a1792bbe7106563c3b06afb9f5682ba3238ce60ade3b14"`
[INFO] running `"docker" "rm" "-f" "89ad04fa2b03b51082a1792bbe7106563c3b06afb9f5682ba3238ce60ade3b14"`
[INFO] [stdout] 89ad04fa2b03b51082a1792bbe7106563c3b06afb9f5682ba3238ce60ade3b14