[INFO] fetching crate wit-bindgen-gen-rust-lib 0.3.0... [INFO] checking wit-bindgen-gen-rust-lib-0.3.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate wit-bindgen-gen-rust-lib 0.3.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate wit-bindgen-gen-rust-lib 0.3.0 [INFO] finished tweaking crates.io crate wit-bindgen-gen-rust-lib 0.3.0 [INFO] tweaked toml for crates.io crate wit-bindgen-gen-rust-lib 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate wit-bindgen-gen-rust-lib 0.3.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 54 packages to latest compatible versions [INFO] [stderr] Adding heck v0.4.1 (available: v0.5.0) [INFO] [stderr] Adding wit-bindgen-core v0.3.0 (available: v0.43.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8552250278b33977d6aed22bb045f64e756df6a6af9f2e9db07b6514ae3de0e8 [INFO] running `Command { std: "docker" "start" "-a" "8552250278b33977d6aed22bb045f64e756df6a6af9f2e9db07b6514ae3de0e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8552250278b33977d6aed22bb045f64e756df6a6af9f2e9db07b6514ae3de0e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8552250278b33977d6aed22bb045f64e756df6a6af9f2e9db07b6514ae3de0e8", kill_on_drop: false }` [INFO] [stdout] 8552250278b33977d6aed22bb045f64e756df6a6af9f2e9db07b6514ae3de0e8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 91f3d30ea5659becb60fdc003ab9e32b06c10d48fa0d4db1e54e3628ad6d07b9 [INFO] running `Command { std: "docker" "start" "-a" "91f3d30ea5659becb60fdc003ab9e32b06c10d48fa0d4db1e54e3628ad6d07b9", kill_on_drop: false }` [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking litemap v0.8.0 [INFO] [stderr] Checking writeable v0.6.1 [INFO] [stderr] Compiling icu_normalizer_data v2.0.0 [INFO] [stderr] Compiling icu_properties_data v2.0.1 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Compiling syn v2.0.104 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Checking utf8_iter v1.0.4 [INFO] [stderr] Checking percent-encoding v2.3.1 [INFO] [stderr] Compiling pulldown-cmark v0.8.0 [INFO] [stderr] Checking memchr v2.7.5 [INFO] [stderr] Checking unicase v2.8.1 [INFO] [stderr] Checking leb128 v0.2.5 [INFO] [stderr] Checking wasm-encoder v0.23.0 [INFO] [stderr] Checking log v0.4.27 [INFO] [stderr] Checking form_urlencoded v1.2.1 [INFO] [stderr] Checking unicode-xid v0.2.6 [INFO] [stderr] Checking id-arena v2.2.1 [INFO] [stderr] Checking unicode-segmentation v1.12.0 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Checking heck v0.4.1 [INFO] [stderr] Compiling synstructure v0.13.2 [INFO] [stderr] Compiling zerovec-derive v0.11.1 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling yoke-derive v0.8.0 [INFO] [stderr] Checking zerofrom v0.1.6 [INFO] [stderr] Checking yoke v0.8.0 [INFO] [stderr] Checking zerovec v0.11.2 [INFO] [stderr] Checking zerotrie v0.2.2 [INFO] [stderr] Checking tinystr v0.8.1 [INFO] [stderr] Checking potential_utf v0.1.2 [INFO] [stderr] Checking icu_collections v2.0.0 [INFO] [stderr] Checking icu_locale_core v2.0.0 [INFO] [stderr] Checking icu_provider v2.0.0 [INFO] [stderr] Checking icu_normalizer v2.0.0 [INFO] [stderr] Checking icu_properties v2.0.1 [INFO] [stderr] Checking idna_adapter v1.2.1 [INFO] [stderr] Checking idna v1.0.3 [INFO] [stderr] Checking url v2.5.4 [INFO] [stderr] Checking wasmparser v0.100.0 [INFO] [stderr] Checking wit-parser v0.6.4 [INFO] [stderr] Checking wasm-metadata v0.1.2 [INFO] [stderr] Checking wit-component v0.6.0 [INFO] [stderr] Checking wit-bindgen-core v0.3.0 [INFO] [stderr] Checking wit-bindgen-gen-rust-lib v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/lib.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | drop((docs, header)); [INFO] [stdout] | ^^^^^--------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `(&[(std::string::String, wit_bindgen_core::wit_parser::Type)], &str)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 55 - drop((docs, header)); [INFO] [stdout] 55 + let _ = (docs, header); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/lib.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | drop((docs, header)); [INFO] [stdout] | ^^^^^--------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `(&[(std::string::String, wit_bindgen_core::wit_parser::Type)], &str)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 55 - drop((docs, header)); [INFO] [stdout] 55 + let _ = (docs, header); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:1001:17 [INFO] [stdout] | [INFO] [stdout] 1001 | fn rust_gen(&self) -> &dyn RustGenerator; [INFO] [stdout] | ^^^^^ ------------------ [INFO] [stdout] | | || [INFO] [stdout] | | |the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 1001 | fn rust_gen(&self) -> &dyn RustGenerator<'_>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:1001:17 [INFO] [stdout] | [INFO] [stdout] 1001 | fn rust_gen(&self) -> &dyn RustGenerator; [INFO] [stdout] | ^^^^^ ------------------ [INFO] [stdout] | | || [INFO] [stdout] | | |the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 1001 | fn rust_gen(&self) -> &dyn RustGenerator<'_>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.38s [INFO] running `Command { std: "docker" "inspect" "91f3d30ea5659becb60fdc003ab9e32b06c10d48fa0d4db1e54e3628ad6d07b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91f3d30ea5659becb60fdc003ab9e32b06c10d48fa0d4db1e54e3628ad6d07b9", kill_on_drop: false }` [INFO] [stdout] 91f3d30ea5659becb60fdc003ab9e32b06c10d48fa0d4db1e54e3628ad6d07b9