[INFO] crate wasm-bindgen-test 0.2.29 is already in cache
[INFO] extracting crate wasm-bindgen-test 0.2.29 into work/ex/clippy-test-run/sources/stable/reg/wasm-bindgen-test/0.2.29
[INFO] extracting crate wasm-bindgen-test 0.2.29 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/wasm-bindgen-test/0.2.29
[INFO] validating manifest of wasm-bindgen-test-0.2.29 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 wasm-bindgen-test-0.2.29 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 wasm-bindgen-test-0.2.29
[INFO] finished frobbing wasm-bindgen-test-0.2.29
[INFO] frobbed toml for wasm-bindgen-test-0.2.29 written to work/ex/clippy-test-run/sources/stable/reg/wasm-bindgen-test/0.2.29/Cargo.toml
[INFO] started frobbing wasm-bindgen-test-0.2.29
[INFO] finished frobbing wasm-bindgen-test-0.2.29
[INFO] frobbed toml for wasm-bindgen-test-0.2.29 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/wasm-bindgen-test/0.2.29/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 wasm-bindgen-test-0.2.29 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/wasm-bindgen-test/0.2.29:/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] e4fdd71bfb6410382fd8715165681ee95a6eaa0c0331044f3fa7e9de4bb30532
[INFO] running `"docker" "start" "-a" "e4fdd71bfb6410382fd8715165681ee95a6eaa0c0331044f3fa7e9de4bb30532"`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.33
[INFO] [stderr]    Compiling wasm-bindgen v0.2.33
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.29
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.33
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.33
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.33
[INFO] [stderr]     Checking js-sys v0.3.10
[INFO] [stderr]     Checking console_error_panic_hook v0.1.5
[INFO] [stderr]     Checking wasm-bindgen-futures v0.3.10
[INFO] [stderr]     Checking wasm-bindgen-test v0.2.29 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/rt/mod.rs:562:5
[INFO] [stderr]     |
[INFO] [stderr] 562 |     return result;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/rt/mod.rs:562:5
[INFO] [stderr]     |
[INFO] [stderr] 562 |     return result;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing.
[INFO] [stderr]   --> src/rt/browser.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[wasm_bindgen]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::drop_ref)] on by default
[INFO] [stderr]    = note: argument has type &wasm_bindgen::JsValue
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_ref
[INFO] [stderr] 
[INFO] [stderr] error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing.
[INFO] [stderr]   --> src/rt/browser.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[wasm_bindgen]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: argument has type &wasm_bindgen::JsValue
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `__rt::browser::Browser`
[INFO] [stderr]   --> src/rt/browser.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     pub fn new() -> Browser {
[INFO] [stderr] 39 | |         let pre = document.getElementById("output");
[INFO] [stderr] 40 | |         pre.set_inner_html("");
[INFO] [stderr] 41 | |         Browser { pre }
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 35 | impl Default for __rt::browser::Browser {
[INFO] [stderr] 36 |     fn default() -> Self {
[INFO] [stderr] 37 |         Self::new()
[INFO] [stderr] 38 |     }
[INFO] [stderr] 39 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing.
[INFO] [stderr]  --> src/rt/detect.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[wasm_bindgen]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: argument has type &wasm_bindgen::JsValue
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_ref
[INFO] [stderr] 
[INFO] [stderr] error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing.
[INFO] [stderr]   --> src/rt/node.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[wasm_bindgen]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: argument has type &wasm_bindgen::JsValue
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `__rt::Context`
[INFO] [stderr]    --> src/rt/mod.rs:207:5
[INFO] [stderr]     |
[INFO] [stderr] 207 | /     pub fn new() -> Context {
[INFO] [stderr] 208 | |         console_error_panic_hook::set_once();
[INFO] [stderr] 209 | |
[INFO] [stderr] 210 | |         let formatter = match node::Node::new() {
[INFO] [stderr] ...   |
[INFO] [stderr] 224 | |         }
[INFO] [stderr] 225 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 200 | impl Default for __rt::Context {
[INFO] [stderr] 201 |     fn default() -> Self {
[INFO] [stderr] 202 |         Self::new()
[INFO] [stderr] 203 |     }
[INFO] [stderr] 204 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/rt/mod.rs:241:32
[INFO] [stderr]     |
[INFO] [stderr] 241 |             if arg.starts_with("-") {
[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: passing a unit value to a function
[INFO] [stderr]    --> src/rt/mod.rs:343:47
[INFO] [stderr]     |
[INFO] [stderr] 343 |         self.execute(name, future::lazy(|| Ok(f())));
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unit_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 343 |         self.execute(name, future::lazy(|| Ok(())));
[INFO] [stderr]     |                                               ^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/rt/mod.rs:484:12
[INFO] [stderr]     |
[INFO] [stderr] 484 |         if output.log.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!output.log.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: length comparison to zero
[INFO] [stderr]    --> src/rt/mod.rs:489:12
[INFO] [stderr]     |
[INFO] [stderr] 489 |         if output.error.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!output.error.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wasm-bindgen-test`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing.
[INFO] [stderr]   --> src/rt/browser.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[wasm_bindgen]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::drop_ref)] on by default
[INFO] [stderr]    = note: argument has type &wasm_bindgen::JsValue
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_ref
[INFO] [stderr] 
[INFO] [stderr] error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing.
[INFO] [stderr]   --> src/rt/browser.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[wasm_bindgen]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: argument has type &wasm_bindgen::JsValue
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `__rt::browser::Browser`
[INFO] [stderr]   --> src/rt/browser.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     pub fn new() -> Browser {
[INFO] [stderr] 39 | |         let pre = document.getElementById("output");
[INFO] [stderr] 40 | |         pre.set_inner_html("");
[INFO] [stderr] 41 | |         Browser { pre }
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 35 | impl Default for __rt::browser::Browser {
[INFO] [stderr] 36 |     fn default() -> Self {
[INFO] [stderr] 37 |         Self::new()
[INFO] [stderr] 38 |     }
[INFO] [stderr] 39 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing.
[INFO] [stderr]  --> src/rt/detect.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[wasm_bindgen]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: argument has type &wasm_bindgen::JsValue
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_ref
[INFO] [stderr] 
[INFO] [stderr] error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing.
[INFO] [stderr]   --> src/rt/node.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[wasm_bindgen]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: argument has type &wasm_bindgen::JsValue
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#drop_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `__rt::Context`
[INFO] [stderr]    --> src/rt/mod.rs:207:5
[INFO] [stderr]     |
[INFO] [stderr] 207 | /     pub fn new() -> Context {
[INFO] [stderr] 208 | |         console_error_panic_hook::set_once();
[INFO] [stderr] 209 | |
[INFO] [stderr] 210 | |         let formatter = match node::Node::new() {
[INFO] [stderr] ...   |
[INFO] [stderr] 224 | |         }
[INFO] [stderr] 225 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 200 | impl Default for __rt::Context {
[INFO] [stderr] 201 |     fn default() -> Self {
[INFO] [stderr] 202 |         Self::new()
[INFO] [stderr] 203 |     }
[INFO] [stderr] 204 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/rt/mod.rs:241:32
[INFO] [stderr]     |
[INFO] [stderr] 241 |             if arg.starts_with("-") {
[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: passing a unit value to a function
[INFO] [stderr]    --> src/rt/mod.rs:343:47
[INFO] [stderr]     |
[INFO] [stderr] 343 |         self.execute(name, future::lazy(|| Ok(f())));
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unit_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 343 |         self.execute(name, future::lazy(|| Ok(())));
[INFO] [stderr]     |                                               ^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/rt/mod.rs:484:12
[INFO] [stderr]     |
[INFO] [stderr] 484 |         if output.log.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!output.log.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: length comparison to zero
[INFO] [stderr]    --> src/rt/mod.rs:489:12
[INFO] [stderr]     |
[INFO] [stderr] 489 |         if output.error.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!output.error.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wasm-bindgen-test`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e4fdd71bfb6410382fd8715165681ee95a6eaa0c0331044f3fa7e9de4bb30532"`
[INFO] running `"docker" "rm" "-f" "e4fdd71bfb6410382fd8715165681ee95a6eaa0c0331044f3fa7e9de4bb30532"`
[INFO] [stdout] e4fdd71bfb6410382fd8715165681ee95a6eaa0c0331044f3fa7e9de4bb30532