[INFO] crate serdebug 1.0.5 is already in cache
[INFO] extracting crate serdebug 1.0.5 into work/ex/clippy-test-run/sources/stable/reg/serdebug/1.0.5
[INFO] extracting crate serdebug 1.0.5 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/serdebug/1.0.5
[INFO] validating manifest of serdebug-1.0.5 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 serdebug-1.0.5 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 serdebug-1.0.5
[INFO] finished frobbing serdebug-1.0.5
[INFO] frobbed toml for serdebug-1.0.5 written to work/ex/clippy-test-run/sources/stable/reg/serdebug/1.0.5/Cargo.toml
[INFO] started frobbing serdebug-1.0.5
[INFO] finished frobbing serdebug-1.0.5
[INFO] frobbed toml for serdebug-1.0.5 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/serdebug/1.0.5/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 serdebug-1.0.5 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/serdebug/1.0.5:/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] d4b6194a5a5698424a6449dbbf81216d928a2a925d00c1a3372cf7b33c4e01ba
[INFO] running `"docker" "start" "-a" "d4b6194a5a5698424a6449dbbf81216d928a2a925d00c1a3372cf7b33c4e01ba"`
[INFO] [stderr]    Compiling serdebug v1.0.5 (/opt/crater/workdir)
[INFO] [stderr]    Compiling serdebug_derive v1.0.0
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/map.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Ok(self.0.finish()?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unit_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/seq.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Ok(self.0.finish()?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/structure.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Ok(self.0.finish()?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/tuple.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Ok(self.0.finish()?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/lib.rs:76:12
[INFO] [stderr]    |
[INFO] [stderr] 76 |         Ok(().fmt(self.0)?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 76 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/map.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Ok(self.0.finish()?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unit_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/seq.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Ok(self.0.finish()?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/structure.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Ok(self.0.finish()?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/tuple.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Ok(self.0.finish()?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]   --> src/lib.rs:76:12
[INFO] [stderr]    |
[INFO] [stderr] 76 |         Ok(().fmt(self.0)?)
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]    |
[INFO] [stderr] 76 |         Ok(())
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.44s
[INFO] running `"docker" "inspect" "d4b6194a5a5698424a6449dbbf81216d928a2a925d00c1a3372cf7b33c4e01ba"`
[INFO] running `"docker" "rm" "-f" "d4b6194a5a5698424a6449dbbf81216d928a2a925d00c1a3372cf7b33c4e01ba"`
[INFO] [stdout] d4b6194a5a5698424a6449dbbf81216d928a2a925d00c1a3372cf7b33c4e01ba