[INFO] crate pidlock 0.1.2 is already in cache
[INFO] extracting crate pidlock 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/pidlock/0.1.2
[INFO] extracting crate pidlock 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/pidlock/0.1.2
[INFO] validating manifest of pidlock-0.1.2 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 pidlock-0.1.2 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 pidlock-0.1.2
[INFO] finished frobbing pidlock-0.1.2
[INFO] frobbed toml for pidlock-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/pidlock/0.1.2/Cargo.toml
[INFO] started frobbing pidlock-0.1.2
[INFO] finished frobbing pidlock-0.1.2
[INFO] frobbed toml for pidlock-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/pidlock/0.1.2/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 pidlock-0.1.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/pidlock/0.1.2:/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] f0ad41f2858f224d688d5e6d44d49791445b268da7b4c9f6dca298ab917dc12f
[INFO] running `"docker" "start" "-a" "f0ad41f2858f224d688d5e6d44d49791445b268da7b4c9f6dca298ab917dc12f"`
[INFO] [stderr]     Checking pidlock v0.1.2 (/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/lib.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 | /         match fs::OpenOptions::new().read(true).open(self.path.clone()) {
[INFO] [stderr] 54 | |             Ok(mut file) => {
[INFO] [stderr] 55 | |                 let mut contents = String::new();
[INFO] [stderr] 56 | |                 file.read_to_string(&mut contents).unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 68 | |             Err(_) => {}
[INFO] [stderr] 69 | |         };
[INFO] [stderr]    | |_________^
[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] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 53 |         if let Ok(mut file) = fs::OpenOptions::new().read(true).open(self.path.clone()) {
[INFO] [stderr] 54 |     let mut contents = String::new();
[INFO] [stderr] 55 |     file.read_to_string(&mut contents).unwrap();
[INFO] [stderr] 56 | 
[INFO] [stderr] 57 |     match contents.trim().parse::<i32>() {
[INFO] [stderr] 58 |         Ok(pid) => {
[INFO] [stderr]  ...
[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/lib.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 | /         match fs::OpenOptions::new().read(true).open(self.path.clone()) {
[INFO] [stderr] 54 | |             Ok(mut file) => {
[INFO] [stderr] 55 | |                 let mut contents = String::new();
[INFO] [stderr] 56 | |                 file.read_to_string(&mut contents).unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 68 | |             Err(_) => {}
[INFO] [stderr] 69 | |         };
[INFO] [stderr]    | |_________^
[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] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 53 |         if let Ok(mut file) = fs::OpenOptions::new().read(true).open(self.path.clone()) {
[INFO] [stderr] 54 |     let mut contents = String::new();
[INFO] [stderr] 55 |     file.read_to_string(&mut contents).unwrap();
[INFO] [stderr] 56 | 
[INFO] [stderr] 57 |     match contents.trim().parse::<i32>() {
[INFO] [stderr] 58 |         Ok(pid) => {
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "f0ad41f2858f224d688d5e6d44d49791445b268da7b4c9f6dca298ab917dc12f"`
[INFO] running `"docker" "rm" "-f" "f0ad41f2858f224d688d5e6d44d49791445b268da7b4c9f6dca298ab917dc12f"`
[INFO] [stdout] f0ad41f2858f224d688d5e6d44d49791445b268da7b4c9f6dca298ab917dc12f