[INFO] crate mvr 0.2.1 is already in cache
[INFO] extracting crate mvr 0.2.1 into work/ex/clippy-test-run/sources/stable/reg/mvr/0.2.1
[INFO] extracting crate mvr 0.2.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/mvr/0.2.1
[INFO] validating manifest of mvr-0.2.1 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 mvr-0.2.1 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 mvr-0.2.1
[INFO] finished frobbing mvr-0.2.1
[INFO] frobbed toml for mvr-0.2.1 written to work/ex/clippy-test-run/sources/stable/reg/mvr/0.2.1/Cargo.toml
[INFO] started frobbing mvr-0.2.1
[INFO] finished frobbing mvr-0.2.1
[INFO] frobbed toml for mvr-0.2.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/mvr/0.2.1/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 mvr-0.2.1 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/mvr/0.2.1:/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] c306e979f2fd86ce6cb2366a08b14ae791679b42269f6998134c15b4e6419a8e
[INFO] running `"docker" "start" "-a" "c306e979f2fd86ce6cb2366a08b14ae791679b42269f6998134c15b4e6419a8e"`
[INFO] [stderr]    Compiling mvr v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:159:16
[INFO] [stderr]     |
[INFO] [stderr] 159 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 160 | |             if let Err(_) = fs::rename(&path, &new_path) {
[INFO] [stderr] 161 | |                 bail!(
[INFO] [stderr] 162 | |                     "could not rename file: {} -> {}",
[INFO] [stderr] ...   |
[INFO] [stderr] 166 | |             }
[INFO] [stderr] 167 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 159 |         } else if let Err(_) = fs::rename(&path, &new_path) {
[INFO] [stderr] 160 |     bail!(
[INFO] [stderr] 161 |         "could not rename file: {} -> {}",
[INFO] [stderr] 162 |         path.display(),
[INFO] [stderr] 163 |         new_path.display()
[INFO] [stderr] 164 |     );
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/main.rs:107:12
[INFO] [stderr]     |
[INFO] [stderr] 107 |       if let Err(_) = io::stdin().read_line(&mut s) {
[INFO] [stderr]     |  _____-      ^^^^^^
[INFO] [stderr] 108 | |         bail!("could not read from stdin");
[INFO] [stderr] 109 | |     }
[INFO] [stderr]     | |_____- help: try this: `if io::stdin().read_line(&mut s).is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/main.rs:135:20
[INFO] [stderr]     |
[INFO] [stderr] 135 |               if let Err(_) = io::stdout().flush() {
[INFO] [stderr]     |  _____________-      ^^^^^^
[INFO] [stderr] 136 | |                 bail!("could not flush stdout");
[INFO] [stderr] 137 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if io::stdout().flush().is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/main.rs:152:20
[INFO] [stderr]     |
[INFO] [stderr] 152 |               if let Err(_) = fs::copy(&path, &new_path) {
[INFO] [stderr]     |  _____________-      ^^^^^^
[INFO] [stderr] 153 | |                 bail!(
[INFO] [stderr] 154 | |                     "could not copy file: {} -> {}",
[INFO] [stderr] 155 | |                     path.display(),
[INFO] [stderr] 156 | |                     new_path.display()
[INFO] [stderr] 157 | |                 );
[INFO] [stderr] 158 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if fs::copy(&path, &new_path).is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/main.rs:160:20
[INFO] [stderr]     |
[INFO] [stderr] 160 |               if let Err(_) = fs::rename(&path, &new_path) {
[INFO] [stderr]     |  _____________-      ^^^^^^
[INFO] [stderr] 161 | |                 bail!(
[INFO] [stderr] 162 | |                     "could not rename file: {} -> {}",
[INFO] [stderr] 163 | |                     path.display(),
[INFO] [stderr] 164 | |                     new_path.display()
[INFO] [stderr] 165 | |                 );
[INFO] [stderr] 166 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if fs::rename(&path, &new_path).is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:159:16
[INFO] [stderr]     |
[INFO] [stderr] 159 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 160 | |             if let Err(_) = fs::rename(&path, &new_path) {
[INFO] [stderr] 161 | |                 bail!(
[INFO] [stderr] 162 | |                     "could not rename file: {} -> {}",
[INFO] [stderr] ...   |
[INFO] [stderr] 166 | |             }
[INFO] [stderr] 167 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 159 |         } else if let Err(_) = fs::rename(&path, &new_path) {
[INFO] [stderr] 160 |     bail!(
[INFO] [stderr] 161 |         "could not rename file: {} -> {}",
[INFO] [stderr] 162 |         path.display(),
[INFO] [stderr] 163 |         new_path.display()
[INFO] [stderr] 164 |     );
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/main.rs:107:12
[INFO] [stderr]     |
[INFO] [stderr] 107 |       if let Err(_) = io::stdin().read_line(&mut s) {
[INFO] [stderr]     |  _____-      ^^^^^^
[INFO] [stderr] 108 | |         bail!("could not read from stdin");
[INFO] [stderr] 109 | |     }
[INFO] [stderr]     | |_____- help: try this: `if io::stdin().read_line(&mut s).is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/main.rs:135:20
[INFO] [stderr]     |
[INFO] [stderr] 135 |               if let Err(_) = io::stdout().flush() {
[INFO] [stderr]     |  _____________-      ^^^^^^
[INFO] [stderr] 136 | |                 bail!("could not flush stdout");
[INFO] [stderr] 137 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if io::stdout().flush().is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/main.rs:152:20
[INFO] [stderr]     |
[INFO] [stderr] 152 |               if let Err(_) = fs::copy(&path, &new_path) {
[INFO] [stderr]     |  _____________-      ^^^^^^
[INFO] [stderr] 153 | |                 bail!(
[INFO] [stderr] 154 | |                     "could not copy file: {} -> {}",
[INFO] [stderr] 155 | |                     path.display(),
[INFO] [stderr] 156 | |                     new_path.display()
[INFO] [stderr] 157 | |                 );
[INFO] [stderr] 158 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if fs::copy(&path, &new_path).is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/main.rs:160:20
[INFO] [stderr]     |
[INFO] [stderr] 160 |               if let Err(_) = fs::rename(&path, &new_path) {
[INFO] [stderr]     |  _____________-      ^^^^^^
[INFO] [stderr] 161 | |                 bail!(
[INFO] [stderr] 162 | |                     "could not rename file: {} -> {}",
[INFO] [stderr] 163 | |                     path.display(),
[INFO] [stderr] 164 | |                     new_path.display()
[INFO] [stderr] 165 | |                 );
[INFO] [stderr] 166 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if fs::rename(&path, &new_path).is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `"docker" "inspect" "c306e979f2fd86ce6cb2366a08b14ae791679b42269f6998134c15b4e6419a8e"`
[INFO] running `"docker" "rm" "-f" "c306e979f2fd86ce6cb2366a08b14ae791679b42269f6998134c15b4e6419a8e"`
[INFO] [stdout] c306e979f2fd86ce6cb2366a08b14ae791679b42269f6998134c15b4e6419a8e