[INFO] updating cached repository abeforgit/bg_switcher
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/abeforgit/bg_switcher
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/abeforgit/bg_switcher" "work/ex/clippy-test-run/sources/stable/gh/abeforgit/bg_switcher"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/abeforgit/bg_switcher'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/abeforgit/bg_switcher" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/abeforgit/bg_switcher"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/abeforgit/bg_switcher'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] efd698a6d389943f938850be65acf17325059bf7
[INFO] sha for GitHub repo abeforgit/bg_switcher: efd698a6d389943f938850be65acf17325059bf7
[INFO] validating manifest of abeforgit/bg_switcher 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 abeforgit/bg_switcher 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 abeforgit/bg_switcher
[INFO] finished frobbing abeforgit/bg_switcher
[INFO] frobbed toml for abeforgit/bg_switcher written to work/ex/clippy-test-run/sources/stable/gh/abeforgit/bg_switcher/Cargo.toml
[INFO] started frobbing abeforgit/bg_switcher
[INFO] finished frobbing abeforgit/bg_switcher
[INFO] frobbed toml for abeforgit/bg_switcher written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/abeforgit/bg_switcher/Cargo.toml
[INFO] crate abeforgit/bg_switcher 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 abeforgit/bg_switcher against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/abeforgit/bg_switcher:/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] 9e4dd4076bd7ac8516430abe472f4ae2f9c00bff16add9374d0c5bf39caf02fe
[INFO] running `"docker" "start" "-a" "9e4dd4076bd7ac8516430abe472f4ae2f9c00bff16add9374d0c5bf39caf02fe"`
[INFO] [stderr]     Checking daemonize v0.3.0
[INFO] [stderr]     Checking i3ipc v0.8.2
[INFO] [stderr]     Checking bg_switcher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:46:45
[INFO] [stderr]    |
[INFO] [stderr] 46 |                   Event::WorkspaceEvent(e) => match e.change {
[INFO] [stderr]    |  _____________________________________________^
[INFO] [stderr] 47 | |                     WorkspaceChange::Focus => set_bg(e.current.unwrap()),
[INFO] [stderr] 48 | |                     _ => (),
[INFO] [stderr] 49 | |                 },
[INFO] [stderr]    | |_________________^ help: try this: `if let WorkspaceChange::Focus = e.change { set_bg(e.current.unwrap()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:46:45
[INFO] [stderr]    |
[INFO] [stderr] 46 |                   Event::WorkspaceEvent(e) => match e.change {
[INFO] [stderr]    |  _____________________________________________^
[INFO] [stderr] 47 | |                     WorkspaceChange::Focus => set_bg(e.current.unwrap()),
[INFO] [stderr] 48 | |                     _ => (),
[INFO] [stderr] 49 | |                 },
[INFO] [stderr]    | |_________________^ help: try this: `if let WorkspaceChange::Focus = e.change { set_bg(e.current.unwrap()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `"docker" "inspect" "9e4dd4076bd7ac8516430abe472f4ae2f9c00bff16add9374d0c5bf39caf02fe"`
[INFO] running `"docker" "rm" "-f" "9e4dd4076bd7ac8516430abe472f4ae2f9c00bff16add9374d0c5bf39caf02fe"`
[INFO] [stdout] 9e4dd4076bd7ac8516430abe472f4ae2f9c00bff16add9374d0c5bf39caf02fe