[INFO] fetching crate libp2prs-dns 0.3.0...
[INFO] checking libp2prs-dns-0.3.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate libp2prs-dns 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libp2prs-dns 0.3.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2prs-dns 0.3.0
[INFO] finished tweaking crates.io crate libp2prs-dns 0.3.0
[INFO] tweaked toml for crates.io crate libp2prs-dns 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5a96f8b47f689a78872e174c0a36253df1e4ec3ab22caed36ff73824bfcfdf8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a5a96f8b47f689a78872e174c0a36253df1e4ec3ab22caed36ff73824bfcfdf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5a96f8b47f689a78872e174c0a36253df1e4ec3ab22caed36ff73824bfcfdf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5a96f8b47f689a78872e174c0a36253df1e4ec3ab22caed36ff73824bfcfdf8", kill_on_drop: false }`
[INFO] [stdout] a5a96f8b47f689a78872e174c0a36253df1e4ec3ab22caed36ff73824bfcfdf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f460c558fb583f0be913f049bda113e951ac44f4480ba2bafbe42da958dfce3f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f460c558fb583f0be913f049bda113e951ac44f4480ba2bafbe42da958dfce3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking fastrand v1.4.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking ed25519 v1.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking if-addrs v0.6.5
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking sha2 v0.9.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking asn1_der v0.6.3
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking curve25519-dalek v3.1.0
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.4.1
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking if-watch v0.1.8
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking libp2p-pnet v0.20.0
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling libp2prs-core v0.3.0
[INFO] [stderr]     Checking libp2prs-runtime v0.3.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling multihash-derive v0.7.1
[INFO] [stderr]     Checking multihash v0.13.2
[INFO] [stderr]     Checking libp2prs-multiaddr v0.3.0
[INFO] [stderr]     Checking libp2prs-tcp v0.3.0
[INFO] [stderr]     Checking libp2prs-dns v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 32s
[INFO] running `Command { std: "docker" "inspect" "f460c558fb583f0be913f049bda113e951ac44f4480ba2bafbe42da958dfce3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f460c558fb583f0be913f049bda113e951ac44f4480ba2bafbe42da958dfce3f", kill_on_drop: false }`
[INFO] [stdout] f460c558fb583f0be913f049bda113e951ac44f4480ba2bafbe42da958dfce3f