[INFO] fetching crate wasm_val 0.3.5...
[INFO] extracting crate wasm_val 0.3.5 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/wasm_val/0.3.5
[INFO] extracting crate wasm_val 0.3.5 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/wasm_val/0.3.5
[INFO] validating manifest of wasm_val-0.3.5 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wasm_val-0.3.5 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wasm_val-0.3.5
[INFO] finished frobbing wasm_val-0.3.5
[INFO] frobbed toml for wasm_val-0.3.5 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/wasm_val/0.3.5/Cargo.toml
[INFO] started frobbing wasm_val-0.3.5
[INFO] finished frobbing wasm_val-0.3.5
[INFO] frobbed toml for wasm_val-0.3.5 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/wasm_val/0.3.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing wasm_val-0.3.5 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/wasm_val/0.3.5:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 1a7ce9ed2415ae9bf62a15fa92589e12f060ac4c36678eb354a71120d50d1706
[INFO] running `"docker" "start" "-a" "1a7ce9ed2415ae9bf62a15fa92589e12f060ac4c36678eb354a71120d50d1706"`
[INFO] [stderr]    Compiling wasm_val v0.3.5 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:56:34
[INFO] [stderr]    |
[INFO] [stderr] 56 | impl JsSerializable for &'static Fn() -> () {
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:67:34
[INFO] [stderr]    |
[INFO] [stderr] 67 | impl JsSerializable for &'static Fn() -> (Box<JsSerializable>) {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> (Box<JsSerializable>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:67:47
[INFO] [stderr]    |
[INFO] [stderr] 67 | impl JsSerializable for &'static Fn() -> (Box<JsSerializable>) {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:78:34
[INFO] [stderr]    |
[INFO] [stderr] 78 | impl JsSerializable for &'static Fn(JsValue) -> () {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(JsValue) -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:89:34
[INFO] [stderr]    |
[INFO] [stderr] 89 | impl JsSerializable for &'static Fn(JsValue) -> (Box<JsSerializable>) {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(JsValue) -> (Box<JsSerializable>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:89:54
[INFO] [stderr]    |
[INFO] [stderr] 89 | impl JsSerializable for &'static Fn(JsValue) -> (Box<JsSerializable>) {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_val_impl/call.rs:36:43
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn call_with_args(&self, args: &[&JsSerializable]) -> Option<JsValue> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_val_impl/call.rs:78:62
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn call_method_with_args(&self, name: &str, args: &[&JsSerializable]) -> Option<JsValue> {
[INFO] [stderr]    |                                                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_val_impl/new.rs:36:42
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn new_with_args(&self, args: &[&JsSerializable]) -> Option<JsValue> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_val_impl/mod.rs:64:33
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn ser_single_val(val: &JsSerializable) -> Vec<u8> {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:52:72
[INFO] [stderr]    |
[INFO] [stderr] 52 |     static CALLBACKS_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn() -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:54:83
[INFO] [stderr]    |
[INFO] [stderr] 54 |     static CALLBACKS_ARG_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn(JsValue) -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stderr]    |                                                                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:130:42
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_callback(callback:  &'static Fn() -> ()) -> u32  {
[INFO] [stderr]     |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:139:45
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn register_callback_ret(callback: &'static Fn() -> (Box<JsSerializable>)) -> u32  {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> (Box<JsSerializable>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:139:58
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn register_callback_ret(callback: &'static Fn() -> (Box<JsSerializable>)) -> u32  {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:148:46
[INFO] [stderr]     |
[INFO] [stderr] 148 | fn register_callback_arg(callback:  &'static Fn(JsValue) -> ()) -> u32  {
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(JsValue) -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:157:50
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> (Box<JsSerializable>)) -> u32  {
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(JsValue) -> (Box<JsSerializable>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:157:70
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> (Box<JsSerializable>)) -> u32  {
[INFO] [stderr]     |                                                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/js_val_impl/new.rs:40:21
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 let mut vec = Vec::with_capacity(alloc_size as usize);
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `"docker" "inspect" "1a7ce9ed2415ae9bf62a15fa92589e12f060ac4c36678eb354a71120d50d1706"`
[INFO] running `"docker" "rm" "-f" "1a7ce9ed2415ae9bf62a15fa92589e12f060ac4c36678eb354a71120d50d1706"`
[INFO] [stdout] 1a7ce9ed2415ae9bf62a15fa92589e12f060ac4c36678eb354a71120d50d1706
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/wasm_val/0.3.5:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5b0d89a708e890b80a2153eebf97114af64d407a9af0487e1f3a93d9702d35ef
[INFO] running `"docker" "start" "-a" "5b0d89a708e890b80a2153eebf97114af64d407a9af0487e1f3a93d9702d35ef"`
[INFO] [stderr]    Compiling wasm_val v0.3.5 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:56:34
[INFO] [stderr]    |
[INFO] [stderr] 56 | impl JsSerializable for &'static Fn() -> () {
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:67:34
[INFO] [stderr]    |
[INFO] [stderr] 67 | impl JsSerializable for &'static Fn() -> (Box<JsSerializable>) {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> (Box<JsSerializable>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:67:47
[INFO] [stderr]    |
[INFO] [stderr] 67 | impl JsSerializable for &'static Fn() -> (Box<JsSerializable>) {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:78:34
[INFO] [stderr]    |
[INFO] [stderr] 78 | impl JsSerializable for &'static Fn(JsValue) -> () {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(JsValue) -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:89:34
[INFO] [stderr]    |
[INFO] [stderr] 89 | impl JsSerializable for &'static Fn(JsValue) -> (Box<JsSerializable>) {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(JsValue) -> (Box<JsSerializable>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_ser/mod.rs:89:54
[INFO] [stderr]    |
[INFO] [stderr] 89 | impl JsSerializable for &'static Fn(JsValue) -> (Box<JsSerializable>) {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_val_impl/call.rs:36:43
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn call_with_args(&self, args: &[&JsSerializable]) -> Option<JsValue> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_val_impl/call.rs:78:62
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn call_method_with_args(&self, name: &str, args: &[&JsSerializable]) -> Option<JsValue> {
[INFO] [stderr]    |                                                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_val_impl/new.rs:36:42
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn new_with_args(&self, args: &[&JsSerializable]) -> Option<JsValue> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/js_val_impl/mod.rs:64:33
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn ser_single_val(val: &JsSerializable) -> Vec<u8> {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:52:72
[INFO] [stderr]    |
[INFO] [stderr] 52 |     static CALLBACKS_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn() -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:54:83
[INFO] [stderr]    |
[INFO] [stderr] 54 |     static CALLBACKS_ARG_RET_KEY: RefCell<HashMap<u32, Rc<dyn Fn(JsValue) -> (Box<JsSerializable>) >>> = RefCell::new(HashMap::new());
[INFO] [stderr]    |                                                                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:130:42
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_callback(callback:  &'static Fn() -> ()) -> u32  {
[INFO] [stderr]     |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:139:45
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn register_callback_ret(callback: &'static Fn() -> (Box<JsSerializable>)) -> u32  {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> (Box<JsSerializable>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:139:58
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn register_callback_ret(callback: &'static Fn() -> (Box<JsSerializable>)) -> u32  {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:148:46
[INFO] [stderr]     |
[INFO] [stderr] 148 | fn register_callback_arg(callback:  &'static Fn(JsValue) -> ()) -> u32  {
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(JsValue) -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:157:50
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> (Box<JsSerializable>)) -> u32  {
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(JsValue) -> (Box<JsSerializable>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:157:70
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn register_callback_ret_arg(callback:  &'static Fn(JsValue) -> (Box<JsSerializable>)) -> u32  {
[INFO] [stderr]     |                                                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn JsSerializable`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/js_val_impl/new.rs:40:21
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 let mut vec = Vec::with_capacity(alloc_size as usize);
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `"docker" "inspect" "5b0d89a708e890b80a2153eebf97114af64d407a9af0487e1f3a93d9702d35ef"`
[INFO] running `"docker" "rm" "-f" "5b0d89a708e890b80a2153eebf97114af64d407a9af0487e1f3a93d9702d35ef"`
[INFO] [stdout] 5b0d89a708e890b80a2153eebf97114af64d407a9af0487e1f3a93d9702d35ef
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/wasm_val/0.3.5:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 16416743541c508fbaab8d94403ac009209e0e5ed5dd4446a492fb5eabd8759c
[INFO] running `"docker" "start" "-a" "16416743541c508fbaab8d94403ac009209e0e5ed5dd4446a492fb5eabd8759c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/wasm_val-06036f7a2a261f75
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wasm_val
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "16416743541c508fbaab8d94403ac009209e0e5ed5dd4446a492fb5eabd8759c"`
[INFO] running `"docker" "rm" "-f" "16416743541c508fbaab8d94403ac009209e0e5ed5dd4446a492fb5eabd8759c"`
[INFO] [stdout] 16416743541c508fbaab8d94403ac009209e0e5ed5dd4446a492fb5eabd8759c