[INFO] fetching crate wit-bindgen-gen-rust-lib 0.3.0...
[INFO] testing wit-bindgen-gen-rust-lib-0.3.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate wit-bindgen-gen-rust-lib 0.3.0 into /workspace/builds/worker-4-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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wit-bindgen-gen-rust-lib 0.3.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 55 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: v0.47.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0ca968c05f5c534d6cc9dfcffb8a0c1e51ec7fe1296c4cea70a30480b156365
[INFO] running `Command { std: "docker" "start" "-a" "e0ca968c05f5c534d6cc9dfcffb8a0c1e51ec7fe1296c4cea70a30480b156365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0ca968c05f5c534d6cc9dfcffb8a0c1e51ec7fe1296c4cea70a30480b156365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ca968c05f5c534d6cc9dfcffb8a0c1e51ec7fe1296c4cea70a30480b156365", kill_on_drop: false }`
[INFO] [stdout] e0ca968c05f5c534d6cc9dfcffb8a0c1e51ec7fe1296c4cea70a30480b156365
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4c3a99df5c7f5c049a19197f35b3755e48a0840e0fda53c28db70e71b4657fc
[INFO] running `Command { std: "docker" "start" "-a" "c4c3a99df5c7f5c049a19197f35b3755e48a0840e0fda53c28db70e71b4657fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling wasm-encoder v0.23.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling yoke v0.8.1
[INFO] [stderr]    Compiling zerovec v0.11.5
[INFO] [stderr]    Compiling zerotrie v0.2.3
[INFO] [stderr]    Compiling tinystr v0.8.2
[INFO] [stderr]    Compiling potential_utf v0.1.4
[INFO] [stderr]    Compiling icu_collections v2.1.1
[INFO] [stderr]    Compiling icu_locale_core v2.1.1
[INFO] [stderr]    Compiling icu_provider v2.1.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling icu_properties v2.1.1
[INFO] [stderr]    Compiling icu_normalizer v2.1.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling wasmparser v0.100.0
[INFO] [stderr]    Compiling wit-parser v0.6.4
[INFO] [stderr]    Compiling wasm-metadata v0.1.2
[INFO] [stderr]    Compiling wit-component v0.6.0
[INFO] [stderr]    Compiling wit-bindgen-core v0.3.0
[INFO] [stderr]    Compiling 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: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]      |                 |         the same lifetime is elided here
[INFO] [stdout]      |                 the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]      = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type 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 17.65s
[INFO] running `Command { std: "docker" "inspect" "c4c3a99df5c7f5c049a19197f35b3755e48a0840e0fda53c28db70e71b4657fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4c3a99df5c7f5c049a19197f35b3755e48a0840e0fda53c28db70e71b4657fc", kill_on_drop: false }`
[INFO] [stdout] c4c3a99df5c7f5c049a19197f35b3755e48a0840e0fda53c28db70e71b4657fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 750c0b6152fea8e9a3fcc0ecae0d7b25c0c5fbc16a7c6e9d8dc1ab95b2926918
[INFO] running `Command { std: "docker" "start" "-a" "750c0b6152fea8e9a3fcc0ecae0d7b25c0c5fbc16a7c6e9d8dc1ab95b2926918", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `Command { std: "docker" "inspect" "750c0b6152fea8e9a3fcc0ecae0d7b25c0c5fbc16a7c6e9d8dc1ab95b2926918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "750c0b6152fea8e9a3fcc0ecae0d7b25c0c5fbc16a7c6e9d8dc1ab95b2926918", kill_on_drop: false }`
[INFO] [stdout] 750c0b6152fea8e9a3fcc0ecae0d7b25c0c5fbc16a7c6e9d8dc1ab95b2926918
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 363ae267d5e59de7cb9c6d7ed7f6eeefa50566ba20c44f0bde7d2d3d2c6acea6
[INFO] running `Command { std: "docker" "start" "-a" "363ae267d5e59de7cb9c6d7ed7f6eeefa50566ba20c44f0bde7d2d3d2c6acea6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `Command { std: "docker" "inspect" "363ae267d5e59de7cb9c6d7ed7f6eeefa50566ba20c44f0bde7d2d3d2c6acea6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "363ae267d5e59de7cb9c6d7ed7f6eeefa50566ba20c44f0bde7d2d3d2c6acea6", kill_on_drop: false }`
[INFO] [stdout] 363ae267d5e59de7cb9c6d7ed7f6eeefa50566ba20c44f0bde7d2d3d2c6acea6