[INFO] updating cached repository 414owen/L-Systems
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/414owen/L-Systems
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/414owen/L-Systems" "work/ex/clippy-test-run/sources/stable/gh/414owen/L-Systems"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/414owen/L-Systems'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/414owen/L-Systems" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/414owen/L-Systems"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/414owen/L-Systems'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e9b9279f4e03eec800e94b94f2abc4a482d68e22
[INFO] sha for GitHub repo 414owen/L-Systems: e9b9279f4e03eec800e94b94f2abc4a482d68e22
[INFO] validating manifest of 414owen/L-Systems 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 414owen/L-Systems 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 414owen/L-Systems
[INFO] finished frobbing 414owen/L-Systems
[INFO] frobbed toml for 414owen/L-Systems written to work/ex/clippy-test-run/sources/stable/gh/414owen/L-Systems/Cargo.toml
[INFO] started frobbing 414owen/L-Systems
[INFO] finished frobbing 414owen/L-Systems
[INFO] frobbed toml for 414owen/L-Systems written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/414owen/L-Systems/Cargo.toml
[INFO] crate 414owen/L-Systems 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 414owen/L-Systems 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-2/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/414owen/L-Systems:/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] 5e8853c1381a4889efb868a39cb0083164d6c86b73f106cb41b123e50fcf6ea0
[INFO] running `"docker" "start" "-a" "5e8853c1381a4889efb868a39cb0083164d6c86b73f106cb41b123e50fcf6ea0"`
[INFO] [stderr]     Checking L-Systems v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/bin/sierpinski.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 32 |             Command::Var(a) => "fd 4"
[INFO] [stderr]    |                          ^ help: consider using `_a` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/bin/sierpinski.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 32 |             Command::Var(a) => "fd 4"
[INFO] [stderr]    |                          ^ help: consider using `_a` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/bin/sierpinski.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     match x {
[INFO] [stderr] 39 | |         &Command::Const(ref a) => match a {
[INFO] [stderr] 40 | |             &Const::Plus => vec!(Command::Const(Const::Plus)),
[INFO] [stderr] 41 | |             &Const::Minus => vec!(Command::Const(Const::Minus))
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |         }
[INFO] [stderr] 63 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 38 |     match *x {
[INFO] [stderr] 39 |         Command::Const(ref a) => match a {
[INFO] [stderr] 40 |             &Const::Plus => vec!(Command::Const(Const::Plus)),
[INFO] [stderr] 41 |             &Const::Minus => vec!(Command::Const(Const::Minus))
[INFO] [stderr] 42 |         },
[INFO] [stderr] 43 |         Command::Var(ref a) => match a {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/bin/sierpinski.rs:39:35
[INFO] [stderr]    |
[INFO] [stderr] 39 |           &Command::Const(ref a) => match a {
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 40 | |             &Const::Plus => vec!(Command::Const(Const::Plus)),
[INFO] [stderr] 41 | |             &Const::Minus => vec!(Command::Const(Const::Minus))
[INFO] [stderr] 42 | |         },
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 39 |         &Command::Const(ref a) => match *a {
[INFO] [stderr] 40 |             Const::Plus => vec!(Command::Const(Const::Plus)),
[INFO] [stderr] 41 |             Const::Minus => vec!(Command::Const(Const::Minus))
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/bin/sierpinski.rs:43:33
[INFO] [stderr]    |
[INFO] [stderr] 43 |           &Command::Var(ref a) => match a {
[INFO] [stderr]    |  _________________________________^
[INFO] [stderr] 44 | |             &Var::A => vec!(
[INFO] [stderr] 45 | |                 Command::Const(Const::Plus),
[INFO] [stderr] 46 | |                 Command::Var(Var::B),
[INFO] [stderr] ...  |
[INFO] [stderr] 61 | |             )
[INFO] [stderr] 62 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 43 |         &Command::Var(ref a) => match *a {
[INFO] [stderr] 44 |             Var::A => vec!(
[INFO] [stderr] 45 |                 Command::Const(Const::Plus),
[INFO] [stderr] 46 |                 Command::Var(Var::B),
[INFO] [stderr] 47 |                 Command::Const(Const::Minus),
[INFO] [stderr] 48 |                 Command::Var(Var::A),
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/bin/sierpinski.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     match x {
[INFO] [stderr] 39 | |         &Command::Const(ref a) => match a {
[INFO] [stderr] 40 | |             &Const::Plus => vec!(Command::Const(Const::Plus)),
[INFO] [stderr] 41 | |             &Const::Minus => vec!(Command::Const(Const::Minus))
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |         }
[INFO] [stderr] 63 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 38 |     match *x {
[INFO] [stderr] 39 |         Command::Const(ref a) => match a {
[INFO] [stderr] 40 |             &Const::Plus => vec!(Command::Const(Const::Plus)),
[INFO] [stderr] 41 |             &Const::Minus => vec!(Command::Const(Const::Minus))
[INFO] [stderr] 42 |         },
[INFO] [stderr] 43 |         Command::Var(ref a) => match a {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/bin/sierpinski.rs:39:35
[INFO] [stderr]    |
[INFO] [stderr] 39 |           &Command::Const(ref a) => match a {
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 40 | |             &Const::Plus => vec!(Command::Const(Const::Plus)),
[INFO] [stderr] 41 | |             &Const::Minus => vec!(Command::Const(Const::Minus))
[INFO] [stderr] 42 | |         },
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 39 |         &Command::Const(ref a) => match *a {
[INFO] [stderr] 40 |             Const::Plus => vec!(Command::Const(Const::Plus)),
[INFO] [stderr] 41 |             Const::Minus => vec!(Command::Const(Const::Minus))
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/bin/sierpinski.rs:43:33
[INFO] [stderr]    |
[INFO] [stderr] 43 |           &Command::Var(ref a) => match a {
[INFO] [stderr]    |  _________________________________^
[INFO] [stderr] 44 | |             &Var::A => vec!(
[INFO] [stderr] 45 | |                 Command::Const(Const::Plus),
[INFO] [stderr] 46 | |                 Command::Var(Var::B),
[INFO] [stderr] ...  |
[INFO] [stderr] 61 | |             )
[INFO] [stderr] 62 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 43 |         &Command::Var(ref a) => match *a {
[INFO] [stderr] 44 |             Var::A => vec!(
[INFO] [stderr] 45 |                 Command::Const(Const::Plus),
[INFO] [stderr] 46 |                 Command::Var(Var::B),
[INFO] [stderr] 47 |                 Command::Const(Const::Minus),
[INFO] [stderr] 48 |                 Command::Var(Var::A),
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "5e8853c1381a4889efb868a39cb0083164d6c86b73f106cb41b123e50fcf6ea0"`
[INFO] running `"docker" "rm" "-f" "5e8853c1381a4889efb868a39cb0083164d6c86b73f106cb41b123e50fcf6ea0"`
[INFO] [stdout] 5e8853c1381a4889efb868a39cb0083164d6c86b73f106cb41b123e50fcf6ea0