[INFO] fetching crate wasm-streams 0.4.0...
[INFO] checking wasm-streams-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate wasm-streams 0.4.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate wasm-streams 0.4.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate wasm-streams 0.4.0
[INFO] finished tweaking crates.io crate wasm-streams 0.4.0
[INFO] tweaked toml for crates.io crate wasm-streams 0.4.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate wasm-streams 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.37
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.37
[INFO] [stderr]   Downloaded tokio-macros v1.2.0
[INFO] [stderr]   Downloaded console_error_panic_hook v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b66d5884a6f38d8681b9012492bbc8bc4044ca0c5c846c5546553d3419842359
[INFO] running `Command { std: "docker" "start" "-a" "b66d5884a6f38d8681b9012492bbc8bc4044ca0c5c846c5546553d3419842359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b66d5884a6f38d8681b9012492bbc8bc4044ca0c5c846c5546553d3419842359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b66d5884a6f38d8681b9012492bbc8bc4044ca0c5c846c5546553d3419842359", kill_on_drop: false }`
[INFO] [stdout] b66d5884a6f38d8681b9012492bbc8bc4044ca0c5c846c5546553d3419842359
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "489d28be7088ab86fd3aba5837d73383bd49a4925b3695502fc14fca2273a817", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.87
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.87
[INFO] [stderr]    Compiling syn v1.0.73
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[INFO] [stderr]    Compiling futures-task v0.3.28
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[INFO] [stderr]    Compiling autocfg v1.0.1
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[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
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[INFO] [stderr]     Checking js-sys v0.3.64
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[INFO] [stderr]     Checking wasm-bindgen-test v0.3.37
[INFO] [stderr]     Checking wasm-streams v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> src/readable/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use wasm_bindgen::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `JsCast` is already imported here
[INFO] [stdout] 7 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> src/readable/into_async_read.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use wasm_bindgen::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `JsCast` is already imported here
[INFO] [stdout] 9 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> src/readable/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use wasm_bindgen::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `JsCast` is already imported here
[INFO] [stdout] 7 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> src/readable/into_async_read.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use wasm_bindgen::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `JsCast` is already imported here
[INFO] [stdout] 9 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `inner`, `default_buffer_len`, and `controller` are never read
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) struct IntoUnderlyingByteSource {
[INFO] [stdout]    |                   ------------------------ fields in this struct
[INFO] [stdout] 17 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     default_buffer_len: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 19 |     controller: Option<sys::ReadableByteStreamController>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `type_`, `auto_allocate_chunk_size`, `start`, `pull`, and `cancel` are never used
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl IntoUnderlyingByteSource {
[INFO] [stdout]    | ----------------------------- methods in this implementation
[INFO] [stdout] 37 |     #[wasm_bindgen(getter, js_name = type)]
[INFO] [stdout] 38 |     pub fn type_(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn auto_allocate_chunk_size(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn start(&mut self, controller: sys::ReadableByteStreamController) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn pull(&mut self, controller: sys::ReadableByteStreamController) -> Promise {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn cancel(self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `async_read` and `buffer` are never read
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | struct Inner {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 85 |     async_read: Option<Pin<Box<dyn AsyncRead>>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 86 |     buffer: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pull` and `discard` are never used
[INFO] [stdout]    --> src/readable/into_underlying_byte_source.rs:97:14
[INFO] [stdout]     |
[INFO] [stdout] 89  | impl Inner {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 97  |     async fn pull(
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn discard(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) struct IntoUnderlyingSource {
[INFO] [stdout]    |                   -------------------- field in this struct
[INFO] [stdout] 17 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pull` and `cancel` are never used
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl IntoUnderlyingSource {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] 33 |     pub fn pull(&mut self, controller: sys::ReadableStreamDefaultController) -> Promise {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn cancel(self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stream` is never read
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | struct Inner {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 67 |     stream: Option<Pin<Box<JsValueStream>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pull` is never used
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:77:14
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl Inner {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     async fn pull(
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clamp_to_usize` is never used
[INFO] [stdout]   --> src/util.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) fn clamp_to_usize(value: u32) -> usize {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `checked_cast_to_u32` is never used
[INFO] [stdout]   --> src/util.rs:32:15
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(crate) fn checked_cast_to_u32(value: usize) -> u32 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct IntoUnderlyingSink {
[INFO] [stdout]    |                   ------------------ field in this struct
[INFO] [stdout] 12 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `close`, and `abort` are never used
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl IntoUnderlyingSink {
[INFO] [stdout]    | ----------------------- methods in this implementation
[INFO] [stdout] 26 |     pub fn write(&mut self, chunk: JsValue) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn close(self) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn abort(self, reason: JsValue) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sink` is never read
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct Inner {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 52 |     sink: Option<Pin<Box<dyn Sink<JsValue, Error = JsValue>>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `close`, and `abort` are never used
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:62:14
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl Inner {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     async fn write(&mut self, chunk: JsValue) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     async fn close(&mut self) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     async fn abort(&mut self, _reason: JsValue) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `inner`, `default_buffer_len`, and `controller` are never read
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) struct IntoUnderlyingByteSource {
[INFO] [stdout]    |                   ------------------------ fields in this struct
[INFO] [stdout] 17 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     default_buffer_len: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 19 |     controller: Option<sys::ReadableByteStreamController>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `type_`, `auto_allocate_chunk_size`, `start`, `pull`, and `cancel` are never used
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl IntoUnderlyingByteSource {
[INFO] [stdout]    | ----------------------------- methods in this implementation
[INFO] [stdout] 37 |     #[wasm_bindgen(getter, js_name = type)]
[INFO] [stdout] 38 |     pub fn type_(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn auto_allocate_chunk_size(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn start(&mut self, controller: sys::ReadableByteStreamController) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn pull(&mut self, controller: sys::ReadableByteStreamController) -> Promise {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn cancel(self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `async_read` and `buffer` are never read
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | struct Inner {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 85 |     async_read: Option<Pin<Box<dyn AsyncRead>>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 86 |     buffer: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pull` and `discard` are never used
[INFO] [stdout]    --> src/readable/into_underlying_byte_source.rs:97:14
[INFO] [stdout]     |
[INFO] [stdout] 89  | impl Inner {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 97  |     async fn pull(
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn discard(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) struct IntoUnderlyingSource {
[INFO] [stdout]    |                   -------------------- field in this struct
[INFO] [stdout] 17 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pull` and `cancel` are never used
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl IntoUnderlyingSource {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] 33 |     pub fn pull(&mut self, controller: sys::ReadableStreamDefaultController) -> Promise {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn cancel(self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stream` is never read
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | struct Inner {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 67 |     stream: Option<Pin<Box<JsValueStream>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pull` is never used
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:77:14
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl Inner {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     async fn pull(
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clamp_to_usize` is never used
[INFO] [stdout]   --> src/util.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) fn clamp_to_usize(value: u32) -> usize {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `checked_cast_to_u32` is never used
[INFO] [stdout]   --> src/util.rs:32:15
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(crate) fn checked_cast_to_u32(value: usize) -> u32 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct IntoUnderlyingSink {
[INFO] [stdout]    |                   ------------------ field in this struct
[INFO] [stdout] 12 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `close`, and `abort` are never used
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl IntoUnderlyingSink {
[INFO] [stdout]    | ----------------------- methods in this implementation
[INFO] [stdout] 26 |     pub fn write(&mut self, chunk: JsValue) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn close(self) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn abort(self, reason: JsValue) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sink` is never read
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct Inner {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 52 |     sink: Option<Pin<Box<dyn Sink<JsValue, Error = JsValue>>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `close`, and `abort` are never used
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:62:14
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl Inner {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     async fn write(&mut self, chunk: JsValue) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     async fn close(&mut self) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     async fn abort(&mut self, _reason: JsValue) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> examples/fetch_as_stream.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | use wasm_bindgen::{prelude::*, JsCast};
[INFO] [stdout]   |                    ----------  ^^^^^^
[INFO] [stdout]   |                    |
[INFO] [stdout]   |                    the item `JsCast` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.32s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.87
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "489d28be7088ab86fd3aba5837d73383bd49a4925b3695502fc14fca2273a817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "489d28be7088ab86fd3aba5837d73383bd49a4925b3695502fc14fca2273a817", kill_on_drop: false }`
[INFO] [stdout] 489d28be7088ab86fd3aba5837d73383bd49a4925b3695502fc14fca2273a817
[INFO] checking wasm-streams-0.4.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate wasm-streams 0.4.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate wasm-streams 0.4.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate wasm-streams 0.4.0
[INFO] finished tweaking crates.io crate wasm-streams 0.4.0
[INFO] tweaked toml for crates.io crate wasm-streams 0.4.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate wasm-streams 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a37d914baa204234df1999cc023760e645a01ae22645cb77f541b652fb102d5
[INFO] running `Command { std: "docker" "start" "-a" "1a37d914baa204234df1999cc023760e645a01ae22645cb77f541b652fb102d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a37d914baa204234df1999cc023760e645a01ae22645cb77f541b652fb102d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a37d914baa204234df1999cc023760e645a01ae22645cb77f541b652fb102d5", kill_on_drop: false }`
[INFO] [stdout] 1a37d914baa204234df1999cc023760e645a01ae22645cb77f541b652fb102d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94b97339dbd7f9304236c22fef3400ade573d6e142d4898254245ca5537a5c80
[INFO] running `Command { std: "docker" "start" "-a" "94b97339dbd7f9304236c22fef3400ade573d6e142d4898254245ca5537a5c80", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.87
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.87
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling tokio v1.7.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.37
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.87
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.87
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.87
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking js-sys v0.3.64
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.37
[INFO] [stderr]     Checking web-sys v0.3.64
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.37
[INFO] [stderr]     Checking wasm-streams v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> src/readable/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use wasm_bindgen::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `JsCast` is already imported here
[INFO] [stdout] 7 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> src/readable/into_async_read.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use wasm_bindgen::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `JsCast` is already imported here
[INFO] [stdout] 9 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> src/readable/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use wasm_bindgen::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `JsCast` is already imported here
[INFO] [stdout] 7 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> src/readable/into_async_read.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use wasm_bindgen::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `JsCast` is already imported here
[INFO] [stdout] 9 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `inner`, `default_buffer_len`, and `controller` are never read
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) struct IntoUnderlyingByteSource {
[INFO] [stdout]    |                   ------------------------ fields in this struct
[INFO] [stdout] 17 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     default_buffer_len: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 19 |     controller: Option<sys::ReadableByteStreamController>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `type_`, `auto_allocate_chunk_size`, `start`, `pull`, and `cancel` are never used
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl IntoUnderlyingByteSource {
[INFO] [stdout]    | ----------------------------- methods in this implementation
[INFO] [stdout] 37 |     #[wasm_bindgen(getter, js_name = type)]
[INFO] [stdout] 38 |     pub fn type_(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn auto_allocate_chunk_size(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn start(&mut self, controller: sys::ReadableByteStreamController) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn pull(&mut self, controller: sys::ReadableByteStreamController) -> Promise {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn cancel(self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `async_read` and `buffer` are never read
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | struct Inner {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 85 |     async_read: Option<Pin<Box<dyn AsyncRead>>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 86 |     buffer: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pull` and `discard` are never used
[INFO] [stdout]    --> src/readable/into_underlying_byte_source.rs:97:14
[INFO] [stdout]     |
[INFO] [stdout] 89  | impl Inner {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 97  |     async fn pull(
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn discard(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) struct IntoUnderlyingSource {
[INFO] [stdout]    |                   -------------------- field in this struct
[INFO] [stdout] 17 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pull` and `cancel` are never used
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl IntoUnderlyingSource {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] 33 |     pub fn pull(&mut self, controller: sys::ReadableStreamDefaultController) -> Promise {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn cancel(self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stream` is never read
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | struct Inner {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 67 |     stream: Option<Pin<Box<JsValueStream>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pull` is never used
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:77:14
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl Inner {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     async fn pull(
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clamp_to_usize` is never used
[INFO] [stdout]   --> src/util.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) fn clamp_to_usize(value: u32) -> usize {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `checked_cast_to_u32` is never used
[INFO] [stdout]   --> src/util.rs:32:15
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(crate) fn checked_cast_to_u32(value: usize) -> u32 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct IntoUnderlyingSink {
[INFO] [stdout]    |                   ------------------ field in this struct
[INFO] [stdout] 12 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `close`, and `abort` are never used
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl IntoUnderlyingSink {
[INFO] [stdout]    | ----------------------- methods in this implementation
[INFO] [stdout] 26 |     pub fn write(&mut self, chunk: JsValue) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn close(self) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn abort(self, reason: JsValue) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sink` is never read
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct Inner {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 52 |     sink: Option<Pin<Box<dyn Sink<JsValue, Error = JsValue>>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `close`, and `abort` are never used
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:62:14
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl Inner {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     async fn write(&mut self, chunk: JsValue) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     async fn close(&mut self) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     async fn abort(&mut self, _reason: JsValue) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `inner`, `default_buffer_len`, and `controller` are never read
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) struct IntoUnderlyingByteSource {
[INFO] [stdout]    |                   ------------------------ fields in this struct
[INFO] [stdout] 17 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     default_buffer_len: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 19 |     controller: Option<sys::ReadableByteStreamController>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `type_`, `auto_allocate_chunk_size`, `start`, `pull`, and `cancel` are never used
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl IntoUnderlyingByteSource {
[INFO] [stdout]    | ----------------------------- methods in this implementation
[INFO] [stdout] 37 |     #[wasm_bindgen(getter, js_name = type)]
[INFO] [stdout] 38 |     pub fn type_(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn auto_allocate_chunk_size(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn start(&mut self, controller: sys::ReadableByteStreamController) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn pull(&mut self, controller: sys::ReadableByteStreamController) -> Promise {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn cancel(self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `async_read` and `buffer` are never read
[INFO] [stdout]   --> src/readable/into_underlying_byte_source.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | struct Inner {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 85 |     async_read: Option<Pin<Box<dyn AsyncRead>>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 86 |     buffer: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pull` and `discard` are never used
[INFO] [stdout]    --> src/readable/into_underlying_byte_source.rs:97:14
[INFO] [stdout]     |
[INFO] [stdout] 89  | impl Inner {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 97  |     async fn pull(
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn discard(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) struct IntoUnderlyingSource {
[INFO] [stdout]    |                   -------------------- field in this struct
[INFO] [stdout] 17 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pull` and `cancel` are never used
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl IntoUnderlyingSource {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] 33 |     pub fn pull(&mut self, controller: sys::ReadableStreamDefaultController) -> Promise {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn cancel(self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stream` is never read
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | struct Inner {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 67 |     stream: Option<Pin<Box<JsValueStream>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pull` is never used
[INFO] [stdout]   --> src/readable/into_underlying_source.rs:77:14
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl Inner {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     async fn pull(
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clamp_to_usize` is never used
[INFO] [stdout]   --> src/util.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) fn clamp_to_usize(value: u32) -> usize {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `checked_cast_to_u32` is never used
[INFO] [stdout]   --> src/util.rs:32:15
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(crate) fn checked_cast_to_u32(value: usize) -> u32 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct IntoUnderlyingSink {
[INFO] [stdout]    |                   ------------------ field in this struct
[INFO] [stdout] 12 |     inner: Rc<RefCell<Inner>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `close`, and `abort` are never used
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl IntoUnderlyingSink {
[INFO] [stdout]    | ----------------------- methods in this implementation
[INFO] [stdout] 26 |     pub fn write(&mut self, chunk: JsValue) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn close(self) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn abort(self, reason: JsValue) -> Promise {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sink` is never read
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct Inner {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 52 |     sink: Option<Pin<Box<dyn Sink<JsValue, Error = JsValue>>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `close`, and `abort` are never used
[INFO] [stdout]   --> src/writable/into_underlying_sink.rs:62:14
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl Inner {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     async fn write(&mut self, chunk: JsValue) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     async fn close(&mut self) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     async fn abort(&mut self, _reason: JsValue) -> Result<(), JsValue> {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]  --> examples/fetch_as_stream.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | use wasm_bindgen::{prelude::*, JsCast};
[INFO] [stdout]   |                    ----------  ^^^^^^
[INFO] [stdout]   |                    |
[INFO] [stdout]   |                    the item `JsCast` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.17s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.87
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "94b97339dbd7f9304236c22fef3400ade573d6e142d4898254245ca5537a5c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94b97339dbd7f9304236c22fef3400ade573d6e142d4898254245ca5537a5c80", kill_on_drop: false }`
[INFO] [stdout] 94b97339dbd7f9304236c22fef3400ade573d6e142d4898254245ca5537a5c80