[INFO] fetching crate wai-bindgen-gen-rust 0.2.3...
[INFO] building wai-bindgen-gen-rust-0.2.3 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate wai-bindgen-gen-rust 0.2.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate wai-bindgen-gen-rust 0.2.3 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wai-bindgen-gen-rust 0.2.3
[INFO] finished tweaking crates.io crate wai-bindgen-gen-rust 0.2.3
[INFO] tweaked toml for crates.io crate wai-bindgen-gen-rust 0.2.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding heck v0.3.3 (available: v0.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wai-parser v0.2.3
[INFO] [stderr]   Downloaded wai-bindgen-gen-core v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67ceeb9cb9ef882df007e889179a7daa545975380df27a043cc260b4b54153c8
[INFO] running `Command { std: "docker" "start" "-a" "67ceeb9cb9ef882df007e889179a7daa545975380df27a043cc260b4b54153c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67ceeb9cb9ef882df007e889179a7daa545975380df27a043cc260b4b54153c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67ceeb9cb9ef882df007e889179a7daa545975380df27a043cc260b4b54153c8", kill_on_drop: false }`
[INFO] [stdout] 67ceeb9cb9ef882df007e889179a7daa545975380df27a043cc260b4b54153c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71dd4aa566c7e7305e80bb5e2dff22c5bef012b629bc3e28c07fe0d6b0ab6917
[INFO] running `Command { std: "docker" "start" "-a" "71dd4aa566c7e7305e80bb5e2dff22c5bef012b629bc3e28c07fe0d6b0ab6917", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.95
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling tinyvec v1.8.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling wai-parser v0.2.3
[INFO] [stderr]    Compiling wai-bindgen-gen-core v0.2.3
[INFO] [stderr]    Compiling wai-bindgen-gen-rust 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:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         drop((docs, header));
[INFO] [stdout]    |         ^^^^^--------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `(&[(std::string::String, wai_bindgen_gen_core::wai_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] 54 -         drop((docs, header));
[INFO] [stdout] 54 +         let _ = (docs, header);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `Command { std: "docker" "inspect" "71dd4aa566c7e7305e80bb5e2dff22c5bef012b629bc3e28c07fe0d6b0ab6917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71dd4aa566c7e7305e80bb5e2dff22c5bef012b629bc3e28c07fe0d6b0ab6917", kill_on_drop: false }`
[INFO] [stdout] 71dd4aa566c7e7305e80bb5e2dff22c5bef012b629bc3e28c07fe0d6b0ab6917
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e7d01e288ded8ad74d4a3665a3d0f43dd96255a3fa12a60ab5f8908c6b87654
[INFO] running `Command { std: "docker" "start" "-a" "0e7d01e288ded8ad74d4a3665a3d0f43dd96255a3fa12a60ab5f8908c6b87654", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] running `Command { std: "docker" "inspect" "0e7d01e288ded8ad74d4a3665a3d0f43dd96255a3fa12a60ab5f8908c6b87654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7d01e288ded8ad74d4a3665a3d0f43dd96255a3fa12a60ab5f8908c6b87654", kill_on_drop: false }`
[INFO] [stdout] 0e7d01e288ded8ad74d4a3665a3d0f43dd96255a3fa12a60ab5f8908c6b87654