[INFO] updating cached repository Kirszu/RustCipherMachine
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Kirszu/RustCipherMachine
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Kirszu/RustCipherMachine" "work/ex/clippy-test-run/sources/stable/gh/Kirszu/RustCipherMachine"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Kirszu/RustCipherMachine'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Kirszu/RustCipherMachine" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Kirszu/RustCipherMachine"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Kirszu/RustCipherMachine'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d786736dd1f9bc9874a04ccc86235553ac6a2b7
[INFO] sha for GitHub repo Kirszu/RustCipherMachine: 1d786736dd1f9bc9874a04ccc86235553ac6a2b7
[INFO] validating manifest of Kirszu/RustCipherMachine 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 Kirszu/RustCipherMachine 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 Kirszu/RustCipherMachine
[INFO] finished frobbing Kirszu/RustCipherMachine
[INFO] frobbed toml for Kirszu/RustCipherMachine written to work/ex/clippy-test-run/sources/stable/gh/Kirszu/RustCipherMachine/Cargo.toml
[INFO] started frobbing Kirszu/RustCipherMachine
[INFO] finished frobbing Kirszu/RustCipherMachine
[INFO] frobbed toml for Kirszu/RustCipherMachine written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Kirszu/RustCipherMachine/Cargo.toml
[INFO] crate Kirszu/RustCipherMachine 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 Kirszu/RustCipherMachine against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Kirszu/RustCipherMachine:/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] a265dc18123e5b552dfe4fafc6272f594068e569f93138924590aaceca1f8fe4
[INFO] running `"docker" "start" "-a" "a265dc18123e5b552dfe4fafc6272f594068e569f93138924590aaceca1f8fe4"`
[INFO] [stderr]     Checking cypher_machine v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     return input;
[INFO] [stderr]   |     ^^^^^^^^^^^^^ help: remove `return` as shown: `input`
[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/main.rs:316:5
[INFO] [stderr]     |
[INFO] [stderr] 316 |     return v;
[INFO] [stderr]     |     ^^^^^^^^^ help: remove `return` as shown: `v`
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:180:21
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let mut x = byte as u32;
[INFO] [stderr]     |                     ^^^^^^^^^^^ help: try: `u32::from(byte)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:220:21
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let mut x = byte as u32;
[INFO] [stderr]     |                     ^^^^^^^^^^^ help: try: `u32::from(byte)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:251:9
[INFO] [stderr]     |
[INFO] [stderr] 251 |         temp = temp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: replace it with: `temp += 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: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:260:26
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let mut x: i32 = chars as i32 + chars_key_full[temp] as i32;
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: try: `i32::from(chars)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:260:41
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let mut x: i32 = chars as i32 + chars_key_full[temp] as i32;
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::from(chars_key_full[temp])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:261:9
[INFO] [stderr]     |
[INFO] [stderr] 261 |         temp = temp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: replace it with: `temp += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:289:9
[INFO] [stderr]     |
[INFO] [stderr] 289 |         temp = temp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: replace it with: `temp += 1`
[INFO] [stderr]     |
[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: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:298:26
[INFO] [stderr]     |
[INFO] [stderr] 298 |         let mut x: i32 = chars as i32 - chars_key_full[temp] as i32;
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: try: `i32::from(chars)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:298:41
[INFO] [stderr]     |
[INFO] [stderr] 298 |         let mut x: i32 = chars as i32 - chars_key_full[temp] as i32;
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::from(chars_key_full[temp])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:299:9
[INFO] [stderr]     |
[INFO] [stderr] 299 |         temp = temp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: replace it with: `temp += 1`
[INFO] [stderr]     |
[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: unneeded return statement
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     return input;
[INFO] [stderr]   |     ^^^^^^^^^^^^^ help: remove `return` as shown: `input`
[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/main.rs:316:5
[INFO] [stderr]     |
[INFO] [stderr] 316 |     return v;
[INFO] [stderr]     |     ^^^^^^^^^ help: remove `return` as shown: `v`
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:180:21
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let mut x = byte as u32;
[INFO] [stderr]     |                     ^^^^^^^^^^^ help: try: `u32::from(byte)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:220:21
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let mut x = byte as u32;
[INFO] [stderr]     |                     ^^^^^^^^^^^ help: try: `u32::from(byte)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:251:9
[INFO] [stderr]     |
[INFO] [stderr] 251 |         temp = temp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: replace it with: `temp += 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: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:260:26
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let mut x: i32 = chars as i32 + chars_key_full[temp] as i32;
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: try: `i32::from(chars)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:260:41
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let mut x: i32 = chars as i32 + chars_key_full[temp] as i32;
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::from(chars_key_full[temp])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:261:9
[INFO] [stderr]     |
[INFO] [stderr] 261 |         temp = temp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: replace it with: `temp += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:289:9
[INFO] [stderr]     |
[INFO] [stderr] 289 |         temp = temp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: replace it with: `temp += 1`
[INFO] [stderr]     |
[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: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:298:26
[INFO] [stderr]     |
[INFO] [stderr] 298 |         let mut x: i32 = chars as i32 - chars_key_full[temp] as i32;
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: try: `i32::from(chars)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:298:41
[INFO] [stderr]     |
[INFO] [stderr] 298 |         let mut x: i32 = chars as i32 - chars_key_full[temp] as i32;
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::from(chars_key_full[temp])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:299:9
[INFO] [stderr]     |
[INFO] [stderr] 299 |         temp = temp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: replace it with: `temp += 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "a265dc18123e5b552dfe4fafc6272f594068e569f93138924590aaceca1f8fe4"`
[INFO] running `"docker" "rm" "-f" "a265dc18123e5b552dfe4fafc6272f594068e569f93138924590aaceca1f8fe4"`
[INFO] [stdout] a265dc18123e5b552dfe4fafc6272f594068e569f93138924590aaceca1f8fe4