[INFO] updating cached repository Towerism/stegosaurus
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Towerism/stegosaurus
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Towerism/stegosaurus" "work/ex/clippy-test-run/sources/stable/gh/Towerism/stegosaurus"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Towerism/stegosaurus'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Towerism/stegosaurus" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Towerism/stegosaurus"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Towerism/stegosaurus'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7f7237a9769dd8a783a964112acb887f4e5cd964
[INFO] sha for GitHub repo Towerism/stegosaurus: 7f7237a9769dd8a783a964112acb887f4e5cd964
[INFO] validating manifest of Towerism/stegosaurus 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 Towerism/stegosaurus 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 Towerism/stegosaurus
[INFO] finished frobbing Towerism/stegosaurus
[INFO] frobbed toml for Towerism/stegosaurus written to work/ex/clippy-test-run/sources/stable/gh/Towerism/stegosaurus/Cargo.toml
[INFO] started frobbing Towerism/stegosaurus
[INFO] finished frobbing Towerism/stegosaurus
[INFO] frobbed toml for Towerism/stegosaurus written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Towerism/stegosaurus/Cargo.toml
[INFO] crate Towerism/stegosaurus has a lockfile. skipping
[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 Towerism/stegosaurus against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Towerism/stegosaurus:/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] 35ba2b0cf8eeb74278950fc49e2887c0f4cbb37c10cc7f1d7795c60451408742
[INFO] running `"docker" "start" "-a" "35ba2b0cf8eeb74278950fc49e2887c0f4cbb37c10cc7f1d7795c60451408742"`
[INFO] [stderr]     Checking rpassword v2.1.0
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking stegosaurus v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/core/config.rs:57:18
[INFO] [stderr]    |
[INFO] [stderr] 57 |             _ => return Err(Box::new(ConfigError::new("error parsing subcommand"))),
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(Box::new(ConfigError::new("error parsing subcommand")))`
[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/core/payload.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         return bytes.len();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `bytes.len()`
[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: long literal lacking separators
[INFO] [stderr]   --> src/core/payload.rs:41:30
[INFO] [stderr]    |
[INFO] [stderr] 41 | static MAGIC_CONSTANT: u64 = 0x1234567887654321;
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^ help: consider: `0x1234_5678_8765_4321`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lsb/bits_view.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         return bits;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `bits`
[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/core/config.rs:57:18
[INFO] [stderr]    |
[INFO] [stderr] 57 |             _ => return Err(Box::new(ConfigError::new("error parsing subcommand"))),
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(Box::new(ConfigError::new("error parsing subcommand")))`
[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/core/payload.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         return bytes.len();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `bytes.len()`
[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: long literal lacking separators
[INFO] [stderr]   --> src/core/payload.rs:41:30
[INFO] [stderr]    |
[INFO] [stderr] 41 | static MAGIC_CONSTANT: u64 = 0x1234567887654321;
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^ help: consider: `0x1234_5678_8765_4321`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lsb/bits_view.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         return bits;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `bits`
[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] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/core/operation.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     buffer.write(&payload)?;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/core/payload.rs:10:30
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn calculate_size(bytes: &Vec<u8>) -> usize {
[INFO] [stderr]    |                              ^^^^^^^^ help: change this to: `&[u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `pixel`
[INFO] [stderr]   --> src/img/image_cover.rs:42:18
[INFO] [stderr]    |
[INFO] [stderr] 42 |         for i in 0..3 {
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 42 |         for (i, <item>) in pixel.iter_mut().enumerate().take(3) {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `chunk`
[INFO] [stderr]   --> src/lsb/mod.rs:40:18
[INFO] [stderr]    |
[INFO] [stderr] 40 |         for i in 0..8 {
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 40 |         for (i, <item>) in chunk.iter().enumerate().take(8) {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lsb/mod.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             result = result | ((chunk[i] & 0x1) << i);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= ((chunk[i] & 0x1) << i)`
[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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `stegosaurus`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/core/operation.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     buffer.write(&payload)?;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/core/payload.rs:10:30
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn calculate_size(bytes: &Vec<u8>) -> usize {
[INFO] [stderr]    |                              ^^^^^^^^ help: change this to: `&[u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `pixel`
[INFO] [stderr]   --> src/img/image_cover.rs:42:18
[INFO] [stderr]    |
[INFO] [stderr] 42 |         for i in 0..3 {
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 42 |         for (i, <item>) in pixel.iter_mut().enumerate().take(3) {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `chunk`
[INFO] [stderr]   --> src/lsb/mod.rs:40:18
[INFO] [stderr]    |
[INFO] [stderr] 40 |         for i in 0..8 {
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 40 |         for (i, <item>) in chunk.iter().enumerate().take(8) {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lsb/mod.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             result = result | ((chunk[i] & 0x1) << i);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= ((chunk[i] & 0x1) << i)`
[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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `stegosaurus`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "35ba2b0cf8eeb74278950fc49e2887c0f4cbb37c10cc7f1d7795c60451408742"`
[INFO] running `"docker" "rm" "-f" "35ba2b0cf8eeb74278950fc49e2887c0f4cbb37c10cc7f1d7795c60451408742"`
[INFO] [stdout] 35ba2b0cf8eeb74278950fc49e2887c0f4cbb37c10cc7f1d7795c60451408742