[INFO] fetching crate wasm-bindgen-backend 0.2.104...
[INFO] checking wasm-bindgen-backend-0.2.104 against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] extracting crate wasm-bindgen-backend 0.2.104 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate wasm-bindgen-backend 0.2.104
[INFO] finished tweaking crates.io crate wasm-bindgen-backend 0.2.104
[INFO] tweaked toml for crates.io crate wasm-bindgen-backend 0.2.104 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasm-bindgen-backend 0.2.104 on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wasm-bindgen-backend 0.2.104 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" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 25d4cc17cfc2a0c638602618cd8117837cb8164c390dcbd6777b2c63b83312c3
[INFO] running `Command { std: "docker" "start" "25d4cc17cfc2a0c638602618cd8117837cb8164c390dcbd6777b2c63b83312c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25d4cc17cfc2a0c638602618cd8117837cb8164c390dcbd6777b2c63b83312c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "25d4cc17cfc2a0c638602618cd8117837cb8164c390dcbd6777b2c63b83312c3" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25d4cc17cfc2a0c638602618cd8117837cb8164c390dcbd6777b2c63b83312c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "25d4cc17cfc2a0c638602618cd8117837cb8164c390dcbd6777b2c63b83312c3" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking unicode-ident v1.0.19
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.104
[INFO] [stderr]     Checking bumpalo v3.19.0
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.106
[INFO] [stderr]     Checking wasm-bindgen-backend v0.2.104 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `Diagnostic`
[INFO] [stdout]    --> src/error.rs:17:20
[INFO] [stdout]     |
[INFO] [stdout]  15 |   macro_rules! bail_span {
[INFO] [stdout]  16 |       ($($t:tt)*) => (
[INFO] [stdout]  17 |           return Err(err_span!($($t)*).into())
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ast.rs:599:13
[INFO] [stdout]     |
[INFO] [stdout] 599 | /             bail_span!(
[INFO] [stdout] 600 | |                 syn::token::Pub(self.name_span),
[INFO] [stdout] 601 | |                 "setters must start with `set_`, found: {}",
[INFO] [stdout] 602 | |                 name,
[INFO] [stdout] 603 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<Diagnostic as Into<Diagnostic>::into(val) to avoid triggering this lint
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Diagnostic`
[INFO] [stdout]    --> src/error.rs:17:20
[INFO] [stdout]     |
[INFO] [stdout]  15 | macro_rules! bail_span {
[INFO] [stdout]  16 |     ($($t:tt)*) => (
[INFO] [stdout]  17 |         return Err(err_span!($($t)*).into())
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/codegen.rs:723:13
[INFO] [stdout]     |
[INFO] [stdout] 723 |             bail_span!(syn_ret, "cannot return a borrowed ref with #[wasm_bindgen]",)
[INFO] [stdout]     |             ------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<Diagnostic as Into<Diagnostic>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Diagnostic`
[INFO] [stdout]     --> src/error.rs:17:20
[INFO] [stdout]      |
[INFO] [stdout]   15 |   macro_rules! bail_span {
[INFO] [stdout]   16 |       ($($t:tt)*) => (
[INFO] [stdout]   17 |           return Err(err_span!($($t)*).into())
[INFO] [stdout]      |                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/codegen.rs:1357:22
[INFO] [stdout]      |
[INFO] [stdout] 1357 |                   _ => bail_span!(
[INFO] [stdout]      |  ______________________-
[INFO] [stdout] 1358 | |                     arg.pat_type.pat,
[INFO] [stdout] 1359 | |                     "unsupported pattern in #[wasm_bindgen] imported function",
[INFO] [stdout] 1360 | |                 ),
[INFO] [stdout]      | |_________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]      = note: you can instead use the fully-qualified path `<Diagnostic as Into<Diagnostic>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Diagnostic`
[INFO] [stdout]     --> src/error.rs:17:20
[INFO] [stdout]      |
[INFO] [stdout]   15 |   macro_rules! bail_span {
[INFO] [stdout]   16 |       ($($t:tt)*) => (
[INFO] [stdout]   17 |           return Err(err_span!($($t)*).into())
[INFO] [stdout]      |                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/codegen.rs:1384:17
[INFO] [stdout]      |
[INFO] [stdout] 1384 | /                 bail_span!(
[INFO] [stdout] 1385 | |                     self.js_ret,
[INFO] [stdout] 1386 | |                     "cannot return references in #[wasm_bindgen] imports yet"
[INFO] [stdout] 1387 | |                 );
[INFO] [stdout]      | |_________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]      = note: you can instead use the fully-qualified path `<Diagnostic as Into<Diagnostic>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Diagnostic`
[INFO] [stdout]    --> src/error.rs:17:20
[INFO] [stdout]     |
[INFO] [stdout]  15 |   macro_rules! bail_span {
[INFO] [stdout]  16 |       ($($t:tt)*) => (
[INFO] [stdout]  17 |           return Err(err_span!($($t)*).into())
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ast.rs:599:13
[INFO] [stdout]     |
[INFO] [stdout] 599 | /             bail_span!(
[INFO] [stdout] 600 | |                 syn::token::Pub(self.name_span),
[INFO] [stdout] 601 | |                 "setters must start with `set_`, found: {}",
[INFO] [stdout] 602 | |                 name,
[INFO] [stdout] 603 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<Diagnostic as Into<Diagnostic>::into(val) to avoid triggering this lint
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Diagnostic`
[INFO] [stdout]    --> src/error.rs:17:20
[INFO] [stdout]     |
[INFO] [stdout]  15 | macro_rules! bail_span {
[INFO] [stdout]  16 |     ($($t:tt)*) => (
[INFO] [stdout]  17 |         return Err(err_span!($($t)*).into())
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/codegen.rs:723:13
[INFO] [stdout]     |
[INFO] [stdout] 723 |             bail_span!(syn_ret, "cannot return a borrowed ref with #[wasm_bindgen]",)
[INFO] [stdout]     |             ------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<Diagnostic as Into<Diagnostic>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Diagnostic`
[INFO] [stdout]     --> src/error.rs:17:20
[INFO] [stdout]      |
[INFO] [stdout]   15 |   macro_rules! bail_span {
[INFO] [stdout]   16 |       ($($t:tt)*) => (
[INFO] [stdout]   17 |           return Err(err_span!($($t)*).into())
[INFO] [stdout]      |                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/codegen.rs:1357:22
[INFO] [stdout]      |
[INFO] [stdout] 1357 |                   _ => bail_span!(
[INFO] [stdout]      |  ______________________-
[INFO] [stdout] 1358 | |                     arg.pat_type.pat,
[INFO] [stdout] 1359 | |                     "unsupported pattern in #[wasm_bindgen] imported function",
[INFO] [stdout] 1360 | |                 ),
[INFO] [stdout]      | |_________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]      = note: you can instead use the fully-qualified path `<Diagnostic as Into<Diagnostic>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Diagnostic`
[INFO] [stdout]     --> src/error.rs:17:20
[INFO] [stdout]      |
[INFO] [stdout]   15 |   macro_rules! bail_span {
[INFO] [stdout]   16 |       ($($t:tt)*) => (
[INFO] [stdout]   17 |           return Err(err_span!($($t)*).into())
[INFO] [stdout]      |                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/codegen.rs:1384:17
[INFO] [stdout]      |
[INFO] [stdout] 1384 | /                 bail_span!(
[INFO] [stdout] 1385 | |                     self.js_ret,
[INFO] [stdout] 1386 | |                     "cannot return references in #[wasm_bindgen] imports yet"
[INFO] [stdout] 1387 | |                 );
[INFO] [stdout]      | |_________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]      = note: you can instead use the fully-qualified path `<Diagnostic as Into<Diagnostic>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-bindgen-backend` (lib test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `wasm-bindgen-backend` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "25d4cc17cfc2a0c638602618cd8117837cb8164c390dcbd6777b2c63b83312c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25d4cc17cfc2a0c638602618cd8117837cb8164c390dcbd6777b2c63b83312c3", kill_on_drop: false }`
[INFO] [stdout] 25d4cc17cfc2a0c638602618cd8117837cb8164c390dcbd6777b2c63b83312c3
