[INFO] fetching crate aha-wit-bindgen-gen-core 0.2.0...
[INFO] checking aha-wit-bindgen-gen-core-0.2.0 against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] extracting crate aha-wit-bindgen-gen-core 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate aha-wit-bindgen-gen-core 0.2.0 on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aha-wit-bindgen-gen-core 0.2.0
[INFO] finished tweaking crates.io crate aha-wit-bindgen-gen-core 0.2.0
[INFO] tweaked toml for crates.io crate aha-wit-bindgen-gen-core 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding pulldown-cmark v0.8.0 (latest: v0.11.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded id-arena v2.2.1
[INFO] [stderr]   Downloaded pulldown-cmark v0.8.0
[INFO] [stderr]   Downloaded aha-wit-parser v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65130e8db4db81ff167e807210a9fe66142e2262aa741bd30801e9e9eb76aae8
[INFO] running `Command { std: "docker" "start" "-a" "65130e8db4db81ff167e807210a9fe66142e2262aa741bd30801e9e9eb76aae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65130e8db4db81ff167e807210a9fe66142e2262aa741bd30801e9e9eb76aae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65130e8db4db81ff167e807210a9fe66142e2262aa741bd30801e9e9eb76aae8", kill_on_drop: false }`
[INFO] [stdout] 65130e8db4db81ff167e807210a9fe66142e2262aa741bd30801e9e9eb76aae8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e800510c15923b2079805c8879296af4f8a2f9ec754fecbf3a3a22b80734cdc2
[INFO] running `Command { std: "docker" "start" "-a" "e800510c15923b2079805c8879296af4f8a2f9ec754fecbf3a3a22b80734cdc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking aha-wit-parser v0.2.0
[INFO] [stderr]     Checking aha-wit-bindgen-gen-core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/lib.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         drop((imports, exports));
[INFO] [stdout]    |         ^^^^^------------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&[aha_wit_parser::Interface], &[aha_wit_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 `(&aha_wit_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 `(&aha_wit_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 `(&aha_wit_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: 5 warnings emitted
[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 `(&[aha_wit_parser::Interface], &[aha_wit_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 `(&aha_wit_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 `(&aha_wit_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 `(&aha_wit_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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "e800510c15923b2079805c8879296af4f8a2f9ec754fecbf3a3a22b80734cdc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e800510c15923b2079805c8879296af4f8a2f9ec754fecbf3a3a22b80734cdc2", kill_on_drop: false }`
[INFO] [stdout] e800510c15923b2079805c8879296af4f8a2f9ec754fecbf3a3a22b80734cdc2
