[INFO] fetching crate wasm_val 0.3.5...
[INFO] documenting wasm_val-0.3.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate wasm_val 0.3.5 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate wasm_val 0.3.5 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasm_val 0.3.5
[INFO] finished tweaking crates.io crate wasm_val 0.3.5
[INFO] tweaked toml for crates.io crate wasm_val 0.3.5 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 684d6ca964e1314d7147eb6972ae5bc2106ab55b20faffb21a8090c558ba481a
[INFO] running `Command { std: "docker" "start" "-a" "684d6ca964e1314d7147eb6972ae5bc2106ab55b20faffb21a8090c558ba481a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "684d6ca964e1314d7147eb6972ae5bc2106ab55b20faffb21a8090c558ba481a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "684d6ca964e1314d7147eb6972ae5bc2106ab55b20faffb21a8090c558ba481a", kill_on_drop: false }`
[INFO] [stdout] 684d6ca964e1314d7147eb6972ae5bc2106ab55b20faffb21a8090c558ba481a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54640927ee1af6a9860430ccdb208cac79d19372a0c77316a4c8ab749e7876b7
[INFO] running `Command { std: "docker" "start" "-a" "54640927ee1af6a9860430ccdb208cac79d19372a0c77316a4c8ab749e7876b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]  Documenting wasm_val v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/js_ser/mod.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl JsSerializable for &'static Fn() -> (Box<JsSerializable>) {
[INFO] [stdout]    |                                          ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 - impl JsSerializable for &'static Fn() -> (Box<JsSerializable>) {
[INFO] [stdout] 67 + impl JsSerializable for &'static Fn() -> Box<JsSerializable> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/js_ser/mod.rs:89:49
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl JsSerializable for &'static Fn(JsValue) -> (Box<JsSerializable>) {
[INFO] [stdout]    |                                                 ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 - impl JsSerializable for &'static Fn(JsValue) -> (Box<JsSerializable>) {
[INFO] [stdout] 89 + impl JsSerializable for &'static Fn(JsValue) -> Box<JsSerializable> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:52:67
[INFO] [stdout]    |
[INFO] [stdout] 52 |     static CALLBACKS_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn() -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stdout]    |                                                                   ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -     static CALLBACKS_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn() -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stdout] 52 +     static CALLBACKS_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn() -> Box<JsSerializable> >>> = RefCell::new(HashMap::new());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:54:78
[INFO] [stdout]    |
[INFO] [stdout] 54 |     static CALLBACKS_ARG_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn(JsValue) -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stdout]    |                                                                              ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 54 -     static CALLBACKS_ARG_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn(JsValue) -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stdout] 54 +     static CALLBACKS_ARG_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn(JsValue) -> Box<JsSerializable> >>> = RefCell::new(HashMap::new());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:70:70
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub extern "C" fn wasm_val_call_registered_callback_ret(key: u32) -> (*mut u8) {
[INFO] [stdout]    |                                                                      ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 70 - pub extern "C" fn wasm_val_call_registered_callback_ret(key: u32) -> (*mut u8) {
[INFO] [stdout] 70 + pub extern "C" fn wasm_val_call_registered_callback_ret(key: u32) -> *mut u8 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:101:88
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub extern "C" fn wasm_val_call_registered_callback_arg_ret(key: u32, ptr: *mut u8) -> (*mut u8) {
[INFO] [stdout]     |                                                                                        ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 101 - pub extern "C" fn wasm_val_call_registered_callback_arg_ret(key: u32, ptr: *mut u8) -> (*mut u8) {
[INFO] [stdout] 101 + pub extern "C" fn wasm_val_call_registered_callback_arg_ret(key: u32, ptr: *mut u8) -> *mut u8 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:139:53
[INFO] [stdout]     |
[INFO] [stdout] 139 | fn register_callback_ret(callback: &'static Fn() -> (Box<JsSerializable>)) -> u32  {
[INFO] [stdout]     |                                                     ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 139 - fn register_callback_ret(callback: &'static Fn() -> (Box<JsSerializable>)) -> u32  {
[INFO] [stdout] 139 + fn register_callback_ret(callback: &'static Fn() -> Box<JsSerializable>) -> u32  {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:157:65
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> (Box<JsSerializable>)) -> u32  {
[INFO] [stdout]     |                                                                 ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 157 - fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> (Box<JsSerializable>)) -> u32  {
[INFO] [stdout] 157 + fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> Box<JsSerializable>) -> u32  {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.84s
[INFO] running `Command { std: "docker" "inspect" "54640927ee1af6a9860430ccdb208cac79d19372a0c77316a4c8ab749e7876b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54640927ee1af6a9860430ccdb208cac79d19372a0c77316a4c8ab749e7876b7", kill_on_drop: false }`
[INFO] [stdout] 54640927ee1af6a9860430ccdb208cac79d19372a0c77316a4c8ab749e7876b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] cb3e35dd2b58a75b29ea5bde3f72d2673c8c67a4aa75924339a1794376926969
[INFO] running `Command { std: "docker" "start" "-a" "cb3e35dd2b58a75b29ea5bde3f72d2673c8c67a4aa75924339a1794376926969", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]  Documenting wasm_val v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.99s
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/js_ser/mod.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl JsSerializable for &'static Fn() -> (Box<JsSerializable>) {
[INFO] [stdout]    |                                          ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 - impl JsSerializable for &'static Fn() -> (Box<JsSerializable>) {
[INFO] [stdout] 67 + impl JsSerializable for &'static Fn() -> Box<JsSerializable> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/js_ser/mod.rs:89:49
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl JsSerializable for &'static Fn(JsValue) -> (Box<JsSerializable>) {
[INFO] [stdout]    |                                                 ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 - impl JsSerializable for &'static Fn(JsValue) -> (Box<JsSerializable>) {
[INFO] [stdout] 89 + impl JsSerializable for &'static Fn(JsValue) -> Box<JsSerializable> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:52:67
[INFO] [stdout]    |
[INFO] [stdout] 52 |     static CALLBACKS_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn() -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stdout]    |                                                                   ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -     static CALLBACKS_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn() -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stdout] 52 +     static CALLBACKS_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn() -> Box<JsSerializable> >>> = RefCell::new(HashMap::new());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:54:78
[INFO] [stdout]    |
[INFO] [stdout] 54 |     static CALLBACKS_ARG_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn(JsValue) -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stdout]    |                                                                              ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 54 -     static CALLBACKS_ARG_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn(JsValue) -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stdout] 54 +     static CALLBACKS_ARG_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn(JsValue) -> Box<JsSerializable> >>> = RefCell::new(HashMap::new());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:70:70
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub extern "C" fn wasm_val_call_registered_callback_ret(key: u32) -> (*mut u8) {
[INFO] [stdout]    |                                                                      ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 70 - pub extern "C" fn wasm_val_call_registered_callback_ret(key: u32) -> (*mut u8) {
[INFO] [stdout] 70 + pub extern "C" fn wasm_val_call_registered_callback_ret(key: u32) -> *mut u8 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:101:88
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub extern "C" fn wasm_val_call_registered_callback_arg_ret(key: u32, ptr: *mut u8) -> (*mut u8) {
[INFO] [stdout]     |                                                                                        ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 101 - pub extern "C" fn wasm_val_call_registered_callback_arg_ret(key: u32, ptr: *mut u8) -> (*mut u8) {
[INFO] [stdout] 101 + pub extern "C" fn wasm_val_call_registered_callback_arg_ret(key: u32, ptr: *mut u8) -> *mut u8 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:139:53
[INFO] [stdout]     |
[INFO] [stdout] 139 | fn register_callback_ret(callback: &'static Fn() -> (Box<JsSerializable>)) -> u32  {
[INFO] [stdout]     |                                                     ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 139 - fn register_callback_ret(callback: &'static Fn() -> (Box<JsSerializable>)) -> u32  {
[INFO] [stdout] 139 + fn register_callback_ret(callback: &'static Fn() -> Box<JsSerializable>) -> u32  {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:157:65
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> (Box<JsSerializable>)) -> u32  {
[INFO] [stdout]     |                                                                 ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 157 - fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> (Box<JsSerializable>)) -> u32  {
[INFO] [stdout] 157 + fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> Box<JsSerializable>) -> u32  {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb3e35dd2b58a75b29ea5bde3f72d2673c8c67a4aa75924339a1794376926969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb3e35dd2b58a75b29ea5bde3f72d2673c8c67a4aa75924339a1794376926969", kill_on_drop: false }`
[INFO] [stdout] cb3e35dd2b58a75b29ea5bde3f72d2673c8c67a4aa75924339a1794376926969