[INFO] fetching crate arp-toolkit 0.3.2...
[INFO] checking arp-toolkit-0.3.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate arp-toolkit 0.3.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate arp-toolkit 0.3.2 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 arp-toolkit 0.3.2
[INFO] finished tweaking crates.io crate arp-toolkit 0.3.2
[INFO] tweaked toml for crates.io crate arp-toolkit 0.3.2 written to /workspace/builds/worker-7-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]      Locking 30 packages to latest compatible versions
[INFO] [stderr]       Adding pnet v0.34.0 (available: v0.35.0)
[INFO] [stderr]       Adding pnet_base v0.34.0 (available: v0.35.0)
[INFO] [stderr]       Adding pnet_datalink v0.34.0 (available: v0.35.0)
[INFO] [stderr]       Adding pnet_macros v0.34.0 (available: v0.35.0)
[INFO] [stderr]       Adding pnet_macros_support v0.34.0 (available: v0.35.0)
[INFO] [stderr]       Adding pnet_packet v0.34.0 (available: v0.35.0)
[INFO] [stderr]       Adding pnet_sys v0.34.0 (available: v0.35.0)
[INFO] [stderr]       Adding pnet_transport v0.34.0 (available: v0.35.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f1156cbddb569b4cc65915f03cd7d0feeafef3ac1f859fa6ad20964552dc23f6
[INFO] running `Command { std: "docker" "start" "-a" "f1156cbddb569b4cc65915f03cd7d0feeafef3ac1f859fa6ad20964552dc23f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1156cbddb569b4cc65915f03cd7d0feeafef3ac1f859fa6ad20964552dc23f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1156cbddb569b4cc65915f03cd7d0feeafef3ac1f859fa6ad20964552dc23f6", kill_on_drop: false }`
[INFO] [stdout] f1156cbddb569b4cc65915f03cd7d0feeafef3ac1f859fa6ad20964552dc23f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8a031c1de808b8cb2a6ddd7b2acd8de357de382e115827f26330b4fe6b11abf4
[INFO] running `Command { std: "docker" "start" "-a" "8a031c1de808b8cb2a6ddd7b2acd8de357de382e115827f26330b4fe6b11abf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling pnet v0.34.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking pnet_sys v0.34.0
[INFO] [stderr]     Checking pnet_base v0.34.0
[INFO] [stderr]     Checking pnet_macros_support v0.34.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]     Checking ipnetwork v0.20.0
[INFO] [stderr]     Checking pnet_datalink v0.34.0
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling maybe-async v0.2.10
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling pnet_macros v0.34.0
[INFO] [stderr]     Checking pnet_packet v0.34.0
[INFO] [stderr]     Checking pnet_transport v0.34.0
[INFO] [stderr]     Checking arp-toolkit v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.30s
[INFO] running `Command { std: "docker" "inspect" "8a031c1de808b8cb2a6ddd7b2acd8de357de382e115827f26330b4fe6b11abf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a031c1de808b8cb2a6ddd7b2acd8de357de382e115827f26330b4fe6b11abf4", kill_on_drop: false }`
[INFO] [stdout] 8a031c1de808b8cb2a6ddd7b2acd8de357de382e115827f26330b4fe6b11abf4