[INFO] fetching crate dns_online 0.2.1...
[INFO] checking dns_online-0.2.1 against 615014f15745532730b9ce7a1d9309f8b4756f93 for pr-160491
[INFO] extracting crate dns_online 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate dns_online 0.2.1
[INFO] finished tweaking crates.io crate dns_online 0.2.1
[INFO] tweaked toml for crates.io crate dns_online 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dns_online 0.2.1 on toolchain 615014f15745532730b9ce7a1d9309f8b4756f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+615014f15745532730b9ce7a1d9309f8b4756f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+615014f15745532730b9ce7a1d9309f8b4756f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+615014f15745532730b9ce7a1d9309f8b4756f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 531a3d32c5d17b847cfb41a1ffcbd36033ac80e9299daa18a382df03787c7664
[INFO] running `Command { std: "docker" "start" "531a3d32c5d17b847cfb41a1ffcbd36033ac80e9299daa18a382df03787c7664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "531a3d32c5d17b847cfb41a1ffcbd36033ac80e9299daa18a382df03787c7664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "531a3d32c5d17b847cfb41a1ffcbd36033ac80e9299daa18a382df03787c7664" "/opt/rustwide/cargo-home/bin/cargo" "+615014f15745532730b9ce7a1d9309f8b4756f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "531a3d32c5d17b847cfb41a1ffcbd36033ac80e9299daa18a382df03787c7664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "531a3d32c5d17b847cfb41a1ffcbd36033ac80e9299daa18a382df03787c7664" "/opt/rustwide/cargo-home/bin/cargo" "+615014f15745532730b9ce7a1d9309f8b4756f93" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling curl v0.4.50
[INFO] [stderr]    Compiling openssl-src v300.6.1+3.6.3
[INFO] [stderr]    Compiling libz-sys v1.1.29
[INFO] [stderr]    Compiling curl-sys v0.4.90+curl-8.21.0
[INFO] [stderr]     Checking socket2 v0.6.5
[INFO] [stderr]     Checking serde v1.0.229
[INFO] [stderr]    Compiling openssl-sys v0.9.117
[INFO] [stderr]     Checking dns_online v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5m 03s
[INFO] running `Command { std: "docker" "inspect" "531a3d32c5d17b847cfb41a1ffcbd36033ac80e9299daa18a382df03787c7664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531a3d32c5d17b847cfb41a1ffcbd36033ac80e9299daa18a382df03787c7664", kill_on_drop: false }`
[INFO] [stdout] 531a3d32c5d17b847cfb41a1ffcbd36033ac80e9299daa18a382df03787c7664