[INFO] fetching crate swaynag 0.2.0...
[INFO] checking swaynag-0.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate swaynag 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate swaynag 0.2.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate swaynag 0.2.0
[INFO] finished tweaking crates.io crate swaynag 0.2.0
[INFO] tweaked toml for crates.io crate swaynag 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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 50 packages to latest compatible versions
[INFO] [stderr]       Adding async-io v1.13.0 (available: v2.3.4)
[INFO] [stderr]       Adding async-lock v2.8.0 (available: v3.4.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.6.0)
[INFO] [stderr]       Adding event-listener v2.5.3 (available: v5.3.1)
[INFO] [stderr]       Adding fastrand v1.9.0 (available: v2.1.1)
[INFO] [stderr]       Adding futures-lite v1.13.0 (available: v2.3.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (available: v0.4.0)
[INFO] [stderr]       Adding io-lifetimes v1.0.11 (available: v2.0.3)
[INFO] [stderr]       Adding linux-raw-sys v0.3.8 (available: v0.6.5)
[INFO] [stderr]       Adding polling v2.8.0 (available: v3.7.3)
[INFO] [stderr]       Adding rustix v0.37.27 (available: v0.38.37)
[INFO] [stderr]       Adding socket2 v0.4.10 (available: v0.5.7)
[INFO] [stderr]       Adding windows-sys v0.48.0 (available: v0.59.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (available: v0.52.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5a3d36a563b013188d2ae2adce2a71cbf8a20bf77498719aec8298cea428b1d
[INFO] running `Command { std: "docker" "start" "-a" "b5a3d36a563b013188d2ae2adce2a71cbf8a20bf77498719aec8298cea428b1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5a3d36a563b013188d2ae2adce2a71cbf8a20bf77498719aec8298cea428b1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a3d36a563b013188d2ae2adce2a71cbf8a20bf77498719aec8298cea428b1d", kill_on_drop: false }`
[INFO] [stdout] b5a3d36a563b013188d2ae2adce2a71cbf8a20bf77498719aec8298cea428b1d
[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 -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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b861d096c709d34626183087ea6ea4c39a0346b4c6f96a46b26010a1e9b37bc2
[INFO] running `Command { std: "docker" "start" "-a" "b861d096c709d34626183087ea6ea4c39a0346b4c6f96a46b26010a1e9b37bc2", kill_on_drop: false }`
[INFO] [stderr]     Checking swaynag v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "b861d096c709d34626183087ea6ea4c39a0346b4c6f96a46b26010a1e9b37bc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b861d096c709d34626183087ea6ea4c39a0346b4c6f96a46b26010a1e9b37bc2", kill_on_drop: false }`
[INFO] [stdout] b861d096c709d34626183087ea6ea4c39a0346b4c6f96a46b26010a1e9b37bc2