[INFO] updating cached repository ryota-sakamoto/scala
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ryota-sakamoto/scala
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ryota-sakamoto/scala" "work/ex/clippy-test-run/sources/stable/gh/ryota-sakamoto/scala"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ryota-sakamoto/scala'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ryota-sakamoto/scala" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ryota-sakamoto/scala"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ryota-sakamoto/scala'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9a024458e9bb3d1c5943433eeb6e709fc255f10a
[INFO] sha for GitHub repo ryota-sakamoto/scala: 9a024458e9bb3d1c5943433eeb6e709fc255f10a
[INFO] validating manifest of ryota-sakamoto/scala 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 ryota-sakamoto/scala 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 ryota-sakamoto/scala
[INFO] finished frobbing ryota-sakamoto/scala
[INFO] frobbed toml for ryota-sakamoto/scala written to work/ex/clippy-test-run/sources/stable/gh/ryota-sakamoto/scala/Cargo.toml
[INFO] started frobbing ryota-sakamoto/scala
[INFO] finished frobbing ryota-sakamoto/scala
[INFO] frobbed toml for ryota-sakamoto/scala written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ryota-sakamoto/scala/Cargo.toml
[INFO] crate ryota-sakamoto/scala 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 ryota-sakamoto/scala 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/gh/ryota-sakamoto/scala:/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] 05406bbceb7c5d0b8419c8b0e5411f162004e574966a39a134117ddec45d3b14
[INFO] running `"docker" "start" "-a" "05406bbceb7c5d0b8419c8b0e5411f162004e574966a39a134117ddec45d3b14"`
[INFO] [stderr]     Checking scala v0.1.0 (/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/util/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 | /         match self {
[INFO] [stderr] 35 | |             Either::Right(b) => {
[INFO] [stderr] 36 | |                 f(b);
[INFO] [stderr] 37 | |             }
[INFO] [stderr] 38 | |             _ => {}
[INFO] [stderr] 39 | |         }
[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] 34 |         if let Either::Right(b) = self {
[INFO] [stderr] 35 |     f(b);
[INFO] [stderr] 36 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/util/mod.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 | /         match self {
[INFO] [stderr] 44 | |             &Either::Left(_) => false,
[INFO] [stderr] 45 | |             &Either::Right(_) => true,
[INFO] [stderr] 46 | |         }
[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] 43 |         match *self {
[INFO] [stderr] 44 |             Either::Left(_) => false,
[INFO] [stderr] 45 |             Either::Right(_) => true,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/util/mod.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 | /         match self {
[INFO] [stderr] 51 | |             &Either::Left(_) => true,
[INFO] [stderr] 52 | |             &Either::Right(_) => false,
[INFO] [stderr] 53 | |         }
[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] 50 |         match *self {
[INFO] [stderr] 51 |             Either::Left(_) => true,
[INFO] [stderr] 52 |             Either::Right(_) => false,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/util/mod.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         match self {
[INFO] [stderr] 61 | |             &Either::Right(ref b) => f(b),
[INFO] [stderr] 62 | |             _ => false,
[INFO] [stderr] 63 | |         }
[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] 60 |         match *self {
[INFO] [stderr] 61 |             Either::Right(ref b) => f(b),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]   --> src/util/mod.rs:95:22
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn to_option(self) -> Option<B> {
[INFO] [stderr]    |                      ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[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/util/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 | /         match self {
[INFO] [stderr] 35 | |             Either::Right(b) => {
[INFO] [stderr] 36 | |                 f(b);
[INFO] [stderr] 37 | |             }
[INFO] [stderr] 38 | |             _ => {}
[INFO] [stderr] 39 | |         }
[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] 34 |         if let Either::Right(b) = self {
[INFO] [stderr] 35 |     f(b);
[INFO] [stderr] 36 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/util/mod.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 | /         match self {
[INFO] [stderr] 44 | |             &Either::Left(_) => false,
[INFO] [stderr] 45 | |             &Either::Right(_) => true,
[INFO] [stderr] 46 | |         }
[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] 43 |         match *self {
[INFO] [stderr] 44 |             Either::Left(_) => false,
[INFO] [stderr] 45 |             Either::Right(_) => true,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/util/mod.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 | /         match self {
[INFO] [stderr] 51 | |             &Either::Left(_) => true,
[INFO] [stderr] 52 | |             &Either::Right(_) => false,
[INFO] [stderr] 53 | |         }
[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] 50 |         match *self {
[INFO] [stderr] 51 |             Either::Left(_) => true,
[INFO] [stderr] 52 |             Either::Right(_) => false,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/util/mod.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         match self {
[INFO] [stderr] 61 | |             &Either::Right(ref b) => f(b),
[INFO] [stderr] 62 | |             _ => false,
[INFO] [stderr] 63 | |         }
[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] 60 |         match *self {
[INFO] [stderr] 61 |             Either::Right(ref b) => f(b),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]   --> src/util/mod.rs:95:22
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn to_option(self) -> Option<B> {
[INFO] [stderr]    |                      ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `e1`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn e1(n: u64) -> Either<String, String> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `e1`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn e1(n: u64) -> Either<String, String> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "05406bbceb7c5d0b8419c8b0e5411f162004e574966a39a134117ddec45d3b14"`
[INFO] running `"docker" "rm" "-f" "05406bbceb7c5d0b8419c8b0e5411f162004e574966a39a134117ddec45d3b14"`
[INFO] [stdout] 05406bbceb7c5d0b8419c8b0e5411f162004e574966a39a134117ddec45d3b14