[INFO] fetching crate wai-bindgen-gen-core 0.2.3...
[INFO] checking wai-bindgen-gen-core-0.2.3 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate wai-bindgen-gen-core 0.2.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate wai-bindgen-gen-core 0.2.3
[INFO] finished tweaking crates.io crate wai-bindgen-gen-core 0.2.3
[INFO] tweaked toml for crates.io crate wai-bindgen-gen-core 0.2.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wai-bindgen-gen-core 0.2.3 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 403ab8e3fb4fc2abac20a121b9ba1a93189aa2a3ff6e924b061e87194de47c92
[INFO] running `Command { std: "docker" "start" "-a" "403ab8e3fb4fc2abac20a121b9ba1a93189aa2a3ff6e924b061e87194de47c92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "403ab8e3fb4fc2abac20a121b9ba1a93189aa2a3ff6e924b061e87194de47c92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "403ab8e3fb4fc2abac20a121b9ba1a93189aa2a3ff6e924b061e87194de47c92", kill_on_drop: false }`
[INFO] [stdout] 403ab8e3fb4fc2abac20a121b9ba1a93189aa2a3ff6e924b061e87194de47c92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ca76fcd3af169ba683a3a82e3c48d8c8d8cf4dbe29a5972ac442690cbbd7886
[INFO] running `Command { std: "docker" "start" "-a" "7ca76fcd3af169ba683a3a82e3c48d8c8d8cf4dbe29a5972ac442690cbbd7886", kill_on_drop: false }`
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking pulldown-cmark v0.8.0
[INFO] [stderr]     Checking wai-parser v0.2.3
[INFO] [stderr]     Checking wai-bindgen-gen-core v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/lib.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         drop((imports, exports));
[INFO] [stdout]    |         ^^^^^------------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&[wai_parser::Interface], &[wai_parser::Interface])`
[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] 44 -         drop((imports, exports));
[INFO] [stdout] 44 +         let _ = (imports, exports);
[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:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         drop((iface, dir));
[INFO] [stdout]    |         ^^^^^------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&wai_parser::Interface, Direction)`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 48 -         drop((iface, dir));
[INFO] [stdout] 48 +         let _ = (iface, dir);
[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:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         drop((iface, dir));
[INFO] [stdout]    |         ^^^^^------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&wai_parser::Interface, Direction)`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 93 -         drop((iface, dir));
[INFO] [stdout] 93 +         let _ = (iface, dir);
[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:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         drop((iface, dir));
[INFO] [stdout]    |         ^^^^^------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&wai_parser::Interface, Direction)`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 98 -         drop((iface, dir));
[INFO] [stdout] 98 +         let _ = (iface, dir);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         drop(files);
[INFO] [stdout]     |         ^^^^^-----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut Files`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 104 -         drop(files);
[INFO] [stdout] 104 +         let _ = files;
[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:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         drop((imports, exports));
[INFO] [stdout]    |         ^^^^^------------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&[wai_parser::Interface], &[wai_parser::Interface])`
[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] 44 -         drop((imports, exports));
[INFO] [stdout] 44 +         let _ = (imports, exports);
[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:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         drop((iface, dir));
[INFO] [stdout]    |         ^^^^^------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&wai_parser::Interface, Direction)`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 48 -         drop((iface, dir));
[INFO] [stdout] 48 +         let _ = (iface, dir);
[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:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         drop((iface, dir));
[INFO] [stdout]    |         ^^^^^------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&wai_parser::Interface, Direction)`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 93 -         drop((iface, dir));
[INFO] [stdout] 93 +         let _ = (iface, dir);
[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:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         drop((iface, dir));
[INFO] [stdout]    |         ^^^^^------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&wai_parser::Interface, Direction)`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 98 -         drop((iface, dir));
[INFO] [stdout] 98 +         let _ = (iface, dir);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         drop(files);
[INFO] [stdout]     |         ^^^^^-----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut Files`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 104 -         drop(files);
[INFO] [stdout] 104 +         let _ = files;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "7ca76fcd3af169ba683a3a82e3c48d8c8d8cf4dbe29a5972ac442690cbbd7886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ca76fcd3af169ba683a3a82e3c48d8c8d8cf4dbe29a5972ac442690cbbd7886", kill_on_drop: false }`
[INFO] [stdout] 7ca76fcd3af169ba683a3a82e3c48d8c8d8cf4dbe29a5972ac442690cbbd7886