[INFO] fetching crate webrtc-mdns 0.3.0...
[INFO] checking webrtc-mdns-0.3.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate webrtc-mdns 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate webrtc-mdns 0.3.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webrtc-mdns 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate webrtc-mdns 0.3.0
[INFO] tweaked toml for crates.io crate webrtc-mdns 0.3.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate webrtc-mdns 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64ebf37c8d9811f12e2b8a6a2bbe66c8db87af2d1f84fd29dda41308ac736f6d
[INFO] running `Command { std: "docker" "start" "-a" "64ebf37c8d9811f12e2b8a6a2bbe66c8db87af2d1f84fd29dda41308ac736f6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64ebf37c8d9811f12e2b8a6a2bbe66c8db87af2d1f84fd29dda41308ac736f6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64ebf37c8d9811f12e2b8a6a2bbe66c8db87af2d1f84fd29dda41308ac736f6d", kill_on_drop: false }`
[INFO] [stdout] 64ebf37c8d9811f12e2b8a6a2bbe66c8db87af2d1f84fd29dda41308ac736f6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] faddc2307302b1333a76191cae4d66ec3a19678d8ece97127b66f6ad9b95788f
[INFO] running `Command { std: "docker" "start" "-a" "faddc2307302b1333a76191cae4d66ec3a19678d8ece97127b66f6ad9b95788f", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking webrtc-util v0.3.0
[INFO] [stderr]     Checking webrtc-mdns v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.25s
[INFO] running `Command { std: "docker" "inspect" "faddc2307302b1333a76191cae4d66ec3a19678d8ece97127b66f6ad9b95788f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faddc2307302b1333a76191cae4d66ec3a19678d8ece97127b66f6ad9b95788f", kill_on_drop: false }`
[INFO] [stdout] faddc2307302b1333a76191cae4d66ec3a19678d8ece97127b66f6ad9b95788f