[INFO] updating cached repository tehroot/gpiorust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tehroot/gpiorust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tehroot/gpiorust" "work/ex/clippy-test-run/sources/stable/gh/tehroot/gpiorust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/tehroot/gpiorust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tehroot/gpiorust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tehroot/gpiorust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tehroot/gpiorust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 18cefba09e9c958be9f5013130f148031a52779d
[INFO] sha for GitHub repo tehroot/gpiorust: 18cefba09e9c958be9f5013130f148031a52779d
[INFO] validating manifest of tehroot/gpiorust 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 tehroot/gpiorust 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 tehroot/gpiorust
[INFO] finished frobbing tehroot/gpiorust
[INFO] frobbed toml for tehroot/gpiorust written to work/ex/clippy-test-run/sources/stable/gh/tehroot/gpiorust/Cargo.toml
[INFO] started frobbing tehroot/gpiorust
[INFO] finished frobbing tehroot/gpiorust
[INFO] frobbed toml for tehroot/gpiorust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tehroot/gpiorust/Cargo.toml
[INFO] crate tehroot/gpiorust 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 tehroot/gpiorust 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/tehroot/gpiorust:/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] 766ccb3fe70eefd99c5a2c62ed29cacdce9e741e06b5bf3c159fde2a55d126cb
[INFO] running `"docker" "start" "-a" "766ccb3fe70eefd99c5a2c62ed29cacdce9e741e06b5bf3c159fde2a55d126cb"`
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking nix v0.6.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking sysfs_gpio v0.5.1
[INFO] [stderr]     Checking test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this looks like an `else if` but the `else` is missing
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |             } if urandom.len() == 8 {
[INFO] [stderr]    |              ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::suspicious_else_formatting)] on by default
[INFO] [stderr]    = note: to remove this lint, add the missing `else` or add a new line before the second `if`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_else_formatting
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:69:3
[INFO] [stderr]    |
[INFO] [stderr] 69 |         return flipper as u8;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `flipper as u8`
[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:71:3
[INFO] [stderr]    |
[INFO] [stderr] 71 |         return 0;
[INFO] [stderr]    |         ^^^^^^^^^ help: remove `return` as shown: `0`
[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: unused variable: `value`
[INFO] [stderr]   --> src/main.rs:26:19
[INFO] [stderr]    |
[INFO] [stderr] 26 |             if let Some(value) = poller.poll(1000)? {
[INFO] [stderr]    |                         ^^^^^ help: consider using `_value` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:29:10
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 ns = now.nanosecond() as i64;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(now.nanosecond())`
[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: this looks like an `else if` but the `else` is missing
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |             } if urandom.len() == 8 {
[INFO] [stderr]    |              ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::suspicious_else_formatting)] on by default
[INFO] [stderr]    = note: to remove this lint, add the missing `else` or add a new line before the second `if`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_else_formatting
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:69:3
[INFO] [stderr]    |
[INFO] [stderr] 69 |         return flipper as u8;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `flipper as u8`
[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:71:3
[INFO] [stderr]    |
[INFO] [stderr] 71 |         return 0;
[INFO] [stderr]    |         ^^^^^^^^^ help: remove `return` as shown: `0`
[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: unused variable: `value`
[INFO] [stderr]   --> src/main.rs:26:19
[INFO] [stderr]    |
[INFO] [stderr] 26 |             if let Some(value) = poller.poll(1000)? {
[INFO] [stderr]    |                         ^^^^^ help: consider using `_value` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:29:10
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 ns = now.nanosecond() as i64;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i64::from(now.nanosecond())`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 8.49s
[INFO] running `"docker" "inspect" "766ccb3fe70eefd99c5a2c62ed29cacdce9e741e06b5bf3c159fde2a55d126cb"`
[INFO] running `"docker" "rm" "-f" "766ccb3fe70eefd99c5a2c62ed29cacdce9e741e06b5bf3c159fde2a55d126cb"`
[INFO] [stdout] 766ccb3fe70eefd99c5a2c62ed29cacdce9e741e06b5bf3c159fde2a55d126cb