[INFO] fetching crate lwk_tiny_jrpc 0.4.0...
[INFO] checking lwk_tiny_jrpc-0.4.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[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 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 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f6731f875df9169391e4afc51c6c43d8591d02a5e54442444054fed6de9b0b7
[INFO] running `Command { std: "docker" "start" "-a" "2f6731f875df9169391e4afc51c6c43d8591d02a5e54442444054fed6de9b0b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f6731f875df9169391e4afc51c6c43d8591d02a5e54442444054fed6de9b0b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f6731f875df9169391e4afc51c6c43d8591d02a5e54442444054fed6de9b0b7", kill_on_drop: false }`
[INFO] [stdout] 2f6731f875df9169391e4afc51c6c43d8591d02a5e54442444054fed6de9b0b7
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94e11aa8d3667c84a66c885ce9a8d114d3886ac43d4ffe66ccc80ff5fbfc8a6f
[INFO] running `Command { std: "docker" "start" "-a" "94e11aa8d3667c84a66c885ce9a8d114d3886ac43d4ffe66ccc80ff5fbfc8a6f", kill_on_drop: false }`
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking rustls-pki-types v1.8.0
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling rustls v0.23.13
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking chunked_transfer v1.5.0
[INFO] [stderr]     Checking ascii v1.1.0
[INFO] [stderr]     Checking webpki-roots v0.26.6
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking sync_wrapper v1.0.1
[INFO] [stderr]     Checking encoding_rs v0.8.34
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking ipnet v2.10.0
[INFO] [stderr]     Checking rustls-pemfile v2.1.3
[INFO] [stderr]     Checking indexmap v2.5.0
[INFO] [stderr]     Checking tiny_http v0.12.0
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking jsonrpc v0.17.0
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking lwk_tiny_jrpc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempfile v3.12.0
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]     Checking tokio-util v0.7.12
[INFO] [stderr]     Checking rustls-webpki v0.102.8
[INFO] [stderr]     Checking h2 v0.4.6
[INFO] [stderr]     Checking hyper v1.4.1
[INFO] [stderr]     Checking tokio-rustls v0.26.0
[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 18.33s
[INFO] running `Command { std: "docker" "inspect" "94e11aa8d3667c84a66c885ce9a8d114d3886ac43d4ffe66ccc80ff5fbfc8a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e11aa8d3667c84a66c885ce9a8d114d3886ac43d4ffe66ccc80ff5fbfc8a6f", kill_on_drop: false }`
[INFO] [stdout] 94e11aa8d3667c84a66c885ce9a8d114d3886ac43d4ffe66ccc80ff5fbfc8a6f