[INFO] fetching crate lwk_tiny_jrpc 0.4.0...
[INFO] checking lwk_tiny_jrpc-0.4.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate lwk_tiny_jrpc 0.4.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate lwk_tiny_jrpc 0.4.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lwk_tiny_jrpc 0.4.0
[INFO] finished tweaking crates.io crate lwk_tiny_jrpc 0.4.0
[INFO] tweaked toml for crates.io crate lwk_tiny_jrpc 0.4.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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 140 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding core-foundation v0.9.4 (available: v0.10.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (available: v0.4.0)
[INFO] [stderr]       Adding idna v0.5.0 (available: v1.0.2)
[INFO] [stderr]       Adding jsonrpc v0.17.0 (available: v0.18.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-registry v0.2.0 (available: v0.3.0)
[INFO] [stderr]       Adding windows-strings v0.1.0 (available: v0.2.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9607f42e065f2d1500e518462c1f5e2316e3fdc099929fd569126739aa0a9748
[INFO] running `Command { std: "docker" "start" "-a" "9607f42e065f2d1500e518462c1f5e2316e3fdc099929fd569126739aa0a9748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9607f42e065f2d1500e518462c1f5e2316e3fdc099929fd569126739aa0a9748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9607f42e065f2d1500e518462c1f5e2316e3fdc099929fd569126739aa0a9748", kill_on_drop: false }`
[INFO] [stdout] 9607f42e065f2d1500e518462c1f5e2316e3fdc099929fd569126739aa0a9748
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d300eefe91cf29b01f815db40f82a1cf4b752aa7559a23bba7a79a7ec525a460
[INFO] running `Command { std: "docker" "start" "-a" "d300eefe91cf29b01f815db40f82a1cf4b752aa7559a23bba7a79a7ec525a460", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustls v0.23.13
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking webpki-roots v0.26.6
[INFO] [stderr]     Checking ascii v1.1.0
[INFO] [stderr]     Checking chunked_transfer v1.5.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking tempfile v3.13.0
[INFO] [stderr]     Checking tiny_http v0.12.0
[INFO] [stderr]     Checking jsonrpc v0.17.0
[INFO] [stderr]     Checking lwk_tiny_jrpc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]     Checking tokio-util v0.7.12
[INFO] [stderr]     Checking tokio-rustls v0.26.0
[INFO] [stderr]     Checking h2 v0.4.6
[INFO] [stderr]     Checking hyper v1.4.1
[INFO] [stderr]     Checking hyper-util v0.1.9
[INFO] [stderr]     Checking hyper-rustls v0.27.3
[INFO] [stderr]     Checking reqwest v0.12.7
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.23s
[INFO] running `Command { std: "docker" "inspect" "d300eefe91cf29b01f815db40f82a1cf4b752aa7559a23bba7a79a7ec525a460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d300eefe91cf29b01f815db40f82a1cf4b752aa7559a23bba7a79a7ec525a460", kill_on_drop: false }`
[INFO] [stdout] d300eefe91cf29b01f815db40f82a1cf4b752aa7559a23bba7a79a7ec525a460