[INFO] updating cached repository qbart/cli
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/qbart/cli
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/qbart/cli" "work/ex/clippy-test-run/sources/stable/gh/qbart/cli"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/qbart/cli'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/qbart/cli" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/qbart/cli"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/qbart/cli'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d70d6d686ba41931492060d48acccb36c11d3801
[INFO] sha for GitHub repo qbart/cli: d70d6d686ba41931492060d48acccb36c11d3801
[INFO] validating manifest of qbart/cli 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 qbart/cli 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 qbart/cli
[INFO] finished frobbing qbart/cli
[INFO] frobbed toml for qbart/cli written to work/ex/clippy-test-run/sources/stable/gh/qbart/cli/Cargo.toml
[INFO] started frobbing qbart/cli
[INFO] finished frobbing qbart/cli
[INFO] frobbed toml for qbart/cli written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/qbart/cli/Cargo.toml
[INFO] crate qbart/cli 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 qbart/cli against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/qbart/cli:/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 -Dclippy::into_iter_on_array" "-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] 5af3264ccc89917c76f6af47c4ce94d17bd1feacbfb9b23deaf61b012502f16d
[INFO] running `"docker" "start" "-a" "5af3264ccc89917c76f6af47c4ce94d17bd1feacbfb9b23deaf61b012502f16d"`
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking colored v1.6.0
[INFO] [stderr]     Checking cli v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]   --> src/tools/rvm.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 |         if params.len() >= 1 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/tools/rvm.rs:15:57
[INFO] [stderr]    |
[INFO] [stderr] 15 |             let rvm_params: Vec<&str> = params[0].split("@").collect();
[INFO] [stderr]    |                                                         ^^^ help: try using a char instead: `'@'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[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/tools/rvm.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 | /         match file_version.write_all(self.version.as_bytes()) {
[INFO] [stderr] 49 | |             Err(e) => panic!("Failed to write to file {}: {}", ruby_version_path.display(), e.description()),
[INFO] [stderr] 50 | |             _ => (),
[INFO] [stderr] 51 | |         };
[INFO] [stderr]    | |_________^ help: try this: `if let Err(e) = file_version.write_all(self.version.as_bytes()) { panic!("Failed to write to file {}: {}", ruby_version_path.display(), e.description()) }`
[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/tools/rvm.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 | /         match file_gemset.write_all(self.gemset.as_bytes()) {
[INFO] [stderr] 60 | |             Err(e) => panic!("Failed to write to file {}: {}", ruby_gemset_path.display(), e.description()),
[INFO] [stderr] 61 | |             _ => (),
[INFO] [stderr] 62 | |         };
[INFO] [stderr]    | |_________^ help: try this: `if let Err(e) = file_gemset.write_all(self.gemset.as_bytes()) { panic!("Failed to write to file {}: {}", ruby_gemset_path.display(), e.description()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]   --> src/tools/rvm.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 |         if params.len() >= 1 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/tools/rvm.rs:15:57
[INFO] [stderr]    |
[INFO] [stderr] 15 |             let rvm_params: Vec<&str> = params[0].split("@").collect();
[INFO] [stderr]    |                                                         ^^^ help: try using a char instead: `'@'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[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/tools/rvm.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 | /         match file_version.write_all(self.version.as_bytes()) {
[INFO] [stderr] 49 | |             Err(e) => panic!("Failed to write to file {}: {}", ruby_version_path.display(), e.description()),
[INFO] [stderr] 50 | |             _ => (),
[INFO] [stderr] 51 | |         };
[INFO] [stderr]    | |_________^ help: try this: `if let Err(e) = file_version.write_all(self.version.as_bytes()) { panic!("Failed to write to file {}: {}", ruby_version_path.display(), e.description()) }`
[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/tools/rvm.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 | /         match file_gemset.write_all(self.gemset.as_bytes()) {
[INFO] [stderr] 60 | |             Err(e) => panic!("Failed to write to file {}: {}", ruby_gemset_path.display(), e.description()),
[INFO] [stderr] 61 | |             _ => (),
[INFO] [stderr] 62 | |         };
[INFO] [stderr]    | |_________^ help: try this: `if let Err(e) = file_gemset.write_all(self.gemset.as_bytes()) { panic!("Failed to write to file {}: {}", ruby_gemset_path.display(), e.description()) }`
[INFO] [stderr]    |
[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 1.76s
[INFO] running `"docker" "inspect" "5af3264ccc89917c76f6af47c4ce94d17bd1feacbfb9b23deaf61b012502f16d"`
[INFO] running `"docker" "rm" "-f" "5af3264ccc89917c76f6af47c4ce94d17bd1feacbfb9b23deaf61b012502f16d"`
[INFO] [stdout] 5af3264ccc89917c76f6af47c4ce94d17bd1feacbfb9b23deaf61b012502f16d