[INFO] crate cargo-wasm 0.4.1 is already in cache
[INFO] extracting crate cargo-wasm 0.4.1 into work/ex/clippy-test-run/sources/stable/reg/cargo-wasm/0.4.1
[INFO] extracting crate cargo-wasm 0.4.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cargo-wasm/0.4.1
[INFO] validating manifest of cargo-wasm-0.4.1 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 cargo-wasm-0.4.1 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 cargo-wasm-0.4.1
[INFO] finished frobbing cargo-wasm-0.4.1
[INFO] frobbed toml for cargo-wasm-0.4.1 written to work/ex/clippy-test-run/sources/stable/reg/cargo-wasm/0.4.1/Cargo.toml
[INFO] started frobbing cargo-wasm-0.4.1
[INFO] finished frobbing cargo-wasm-0.4.1
[INFO] frobbed toml for cargo-wasm-0.4.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cargo-wasm/0.4.1/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 cargo-wasm-0.4.1 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/reg/cargo-wasm/0.4.1:/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] 370ae8468117a6cf45bb1c4c7bce3f7a33d2836c196319830669d3cfad5ed69a
[INFO] running `"docker" "start" "-a" "370ae8468117a6cf45bb1c4c7bce3f7a33d2836c196319830669d3cfad5ed69a"`
[INFO] [stderr]     Checking cargo-wasm v0.4.1 (/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/cargo.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 | /         match path.extension() {
[INFO] [stderr] 84 | |             Some(ext) => if ext == "wasm" {
[INFO] [stderr] 85 | |                 return Ok(entry.path());
[INFO] [stderr] 86 | |             },
[INFO] [stderr] 87 | |             None => {},
[INFO] [stderr] 88 | |         }
[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] 83 |         if let Some(ext) = path.extension() { if ext == "wasm" {
[INFO] [stderr] 84 |     return Ok(entry.path());
[INFO] [stderr] 85 | } }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stderr]   --> src/main.rs:81:23
[INFO] [stderr]    |
[INFO] [stderr] 81 |           } else if let Some(_) = matches.subcommand_matches("setup") {
[INFO] [stderr]    |  ________________-      ^^^^^^^
[INFO] [stderr] 82 | |             setup()?;
[INFO] [stderr] 83 | |
[INFO] [stderr] 84 | |         }
[INFO] [stderr]    | |_________- help: try this: `if matches.subcommand_matches("setup").is_some()`
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/cargo.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 | /         match path.extension() {
[INFO] [stderr] 84 | |             Some(ext) => if ext == "wasm" {
[INFO] [stderr] 85 | |                 return Ok(entry.path());
[INFO] [stderr] 86 | |             },
[INFO] [stderr] 87 | |             None => {},
[INFO] [stderr] 88 | |         }
[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] 83 |         if let Some(ext) = path.extension() { if ext == "wasm" {
[INFO] [stderr] 84 |     return Ok(entry.path());
[INFO] [stderr] 85 | } }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stderr]   --> src/main.rs:81:23
[INFO] [stderr]    |
[INFO] [stderr] 81 |           } else if let Some(_) = matches.subcommand_matches("setup") {
[INFO] [stderr]    |  ________________-      ^^^^^^^
[INFO] [stderr] 82 | |             setup()?;
[INFO] [stderr] 83 | |
[INFO] [stderr] 84 | |         }
[INFO] [stderr]    | |_________- help: try this: `if matches.subcommand_matches("setup").is_some()`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `"docker" "inspect" "370ae8468117a6cf45bb1c4c7bce3f7a33d2836c196319830669d3cfad5ed69a"`
[INFO] running `"docker" "rm" "-f" "370ae8468117a6cf45bb1c4c7bce3f7a33d2836c196319830669d3cfad5ed69a"`
[INFO] [stdout] 370ae8468117a6cf45bb1c4c7bce3f7a33d2836c196319830669d3cfad5ed69a