[INFO] fetching crate webrtc-rs-mdns 0.2.0...
[INFO] checking webrtc-rs-mdns-0.2.0 against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] extracting crate webrtc-rs-mdns 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate webrtc-rs-mdns 0.2.0 on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webrtc-rs-mdns 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate webrtc-rs-mdns 0.2.0
[INFO] tweaked toml for crates.io crate webrtc-rs-mdns 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate webrtc-rs-mdns 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook v0.3.4
[INFO] [stderr]   Downloaded ifaces v0.1.0
[INFO] [stderr]   Downloaded nix v0.8.1
[INFO] [stderr]   Downloaded webrtc-rs-util v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "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] 5b109236630cc04b8dd6b1ea88c1d1e2ce0239329f677d8bfd3acc6ad743f16d
[INFO] running `Command { std: "docker" "start" "-a" "5b109236630cc04b8dd6b1ea88c1d1e2ce0239329f677d8bfd3acc6ad743f16d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b109236630cc04b8dd6b1ea88c1d1e2ce0239329f677d8bfd3acc6ad743f16d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b109236630cc04b8dd6b1ea88c1d1e2ce0239329f677d8bfd3acc6ad743f16d", kill_on_drop: false }`
[INFO] [stdout] 5b109236630cc04b8dd6b1ea88c1d1e2ce0239329f677d8bfd3acc6ad743f16d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 293cdaefd4b7e2f6e88e163a6a3ce19e013e9f8b5155c42f4395ab5a8b765760
[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" "293cdaefd4b7e2f6e88e163a6a3ce19e013e9f8b5155c42f4395ab5a8b765760", kill_on_drop: false }`
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling signal-hook v0.3.4
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking ff v0.8.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking group v0.8.0
[INFO] [stderr]     Checking polyval v0.4.5
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking elliptic-curve v0.8.4
[INFO] [stderr]     Checking ghash v0.3.1
[INFO] [stderr]     Checking aes-gcm v0.8.0
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking p256 v0.7.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking yasna v0.3.2
[INFO] [stderr]     Checking ifaces v0.1.0
[INFO] [stderr]     Checking pem v0.8.2
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking rcgen v0.8.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking x509-parser v0.9.0
[INFO] [stderr]     Checking webrtc-rs-util v0.1.2
[INFO] [stderr]     Checking webrtc-rs-mdns v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.83s
[INFO] running `Command { std: "docker" "inspect" "293cdaefd4b7e2f6e88e163a6a3ce19e013e9f8b5155c42f4395ab5a8b765760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "293cdaefd4b7e2f6e88e163a6a3ce19e013e9f8b5155c42f4395ab5a8b765760", kill_on_drop: false }`
[INFO] [stdout] 293cdaefd4b7e2f6e88e163a6a3ce19e013e9f8b5155c42f4395ab5a8b765760