[INFO] updating cached repository dalance/flexlint
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dalance/flexlint
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dalance/flexlint" "work/ex/clippy-test-run/sources/stable/gh/dalance/flexlint"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/dalance/flexlint'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dalance/flexlint" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dalance/flexlint"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dalance/flexlint'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 77dc0db46d5f61d854f0863ea07fcc7534d95e26
[INFO] sha for GitHub repo dalance/flexlint: 77dc0db46d5f61d854f0863ea07fcc7534d95e26
[INFO] validating manifest of dalance/flexlint 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 dalance/flexlint 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 dalance/flexlint
[INFO] finished frobbing dalance/flexlint
[INFO] frobbed toml for dalance/flexlint written to work/ex/clippy-test-run/sources/stable/gh/dalance/flexlint/Cargo.toml
[INFO] started frobbing dalance/flexlint
[INFO] finished frobbing dalance/flexlint
[INFO] frobbed toml for dalance/flexlint written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dalance/flexlint/Cargo.toml
[INFO] crate dalance/flexlint 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 dalance/flexlint against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/dalance/flexlint:/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] facbc95fe91fc7adf9ac127023f5171675ac689c2a46e87908f82809723e12bc
[INFO] running `"docker" "start" "-a" "facbc95fe91fc7adf9ac127023f5171675ac689c2a46e87908f82809723e12bc"`
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking flexlint v0.2.5-pre (/opt/crater/workdir)
[INFO] [stderr] warning: trivial regex
[INFO] [stderr]    --> src/lint.rs:303:40
[INFO] [stderr]     |
[INFO] [stderr] 303 |             format!("{:?}", Regex::new("bbb").unwrap())
[INFO] [stderr]     |                                        ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivial_regex)] on by default
[INFO] [stderr]     = help: consider using `str::contains`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: trivial regex
[INFO] [stderr]    --> src/lint.rs:307:45
[INFO] [stderr]     |
[INFO] [stderr] 307 |             format!("{:?}", Some(Regex::new("ccc").unwrap()))
[INFO] [stderr]     |                                             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using `str::contains`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: trivial regex
[INFO] [stderr]    --> src/lint.rs:311:45
[INFO] [stderr]     |
[INFO] [stderr] 311 |             format!("{:?}", Some(Regex::new("ddd").unwrap()))
[INFO] [stderr]     |                                             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using `str::contains`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: trivial regex
[INFO] [stderr]    --> src/lint.rs:315:45
[INFO] [stderr]     |
[INFO] [stderr] 315 |             format!("{:?}", Some(Regex::new("eee").unwrap()))
[INFO] [stderr]     |                                             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using `str::contains`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/printer.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         let _ = self.print_summary(path_checked, verbose, start_time)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/printer.rs:377:50
[INFO] [stderr]     |
[INFO] [stderr] 377 |         let elapsed = elapsed.as_secs() as f64 + elapsed.subsec_micros() as f64 * 1e-6;
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(elapsed.subsec_micros())`
[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 let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/printer.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         let _ = self.print_summary(path_checked, verbose, start_time)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/printer.rs:377:50
[INFO] [stderr]     |
[INFO] [stderr] 377 |         let elapsed = elapsed.as_secs() as f64 + elapsed.subsec_micros() as f64 * 1e-6;
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(elapsed.subsec_micros())`
[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 30.87s
[INFO] running `"docker" "inspect" "facbc95fe91fc7adf9ac127023f5171675ac689c2a46e87908f82809723e12bc"`
[INFO] running `"docker" "rm" "-f" "facbc95fe91fc7adf9ac127023f5171675ac689c2a46e87908f82809723e12bc"`
[INFO] [stdout] facbc95fe91fc7adf9ac127023f5171675ac689c2a46e87908f82809723e12bc