[INFO] fetching crate libp2p-mdns 0.28.0...
[INFO] checking libp2p-mdns-0.28.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate libp2p-mdns 0.28.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libp2p-mdns 0.28.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-mdns 0.28.0
[INFO] finished tweaking crates.io crate libp2p-mdns 0.28.0
[INFO] tweaked toml for crates.io crate libp2p-mdns 0.28.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 488f03eacd10d9423ad6ed8226b7df09d3108cf1d33252479913dca8457c2bd1
[INFO] running `Command { std: "docker" "start" "-a" "488f03eacd10d9423ad6ed8226b7df09d3108cf1d33252479913dca8457c2bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "488f03eacd10d9423ad6ed8226b7df09d3108cf1d33252479913dca8457c2bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "488f03eacd10d9423ad6ed8226b7df09d3108cf1d33252479913dca8457c2bd1", kill_on_drop: false }`
[INFO] [stdout] 488f03eacd10d9423ad6ed8226b7df09d3108cf1d33252479913dca8457c2bd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f945783bb625f8e5a67a1e4195ea98702ccba07e58ee86c61fa1978ce37e30d
[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" "7f945783bb625f8e5a67a1e4195ea98702ccba07e58ee86c61fa1978ce37e30d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unsigned-varint v0.6.0
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking if-addrs v0.6.5
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking parity-multiaddr v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking curve25519-dalek v3.0.2
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling which v4.0.2
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking if-watch v0.1.8
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]    Compiling libp2p-core v0.27.0
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking multistream-select v0.10.0
[INFO] [stderr]     Checking wasm-timer v0.2.5
[INFO] [stderr]     Checking libp2p-swarm v0.27.2
[INFO] [stderr]     Checking libp2p-mdns v0.28.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.38s
[INFO] running `Command { std: "docker" "inspect" "7f945783bb625f8e5a67a1e4195ea98702ccba07e58ee86c61fa1978ce37e30d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f945783bb625f8e5a67a1e4195ea98702ccba07e58ee86c61fa1978ce37e30d", kill_on_drop: false }`
[INFO] [stdout] 7f945783bb625f8e5a67a1e4195ea98702ccba07e58ee86c61fa1978ce37e30d