[INFO] cloning repository https://github.com/icewind1991/prometheus-mdns-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/icewind1991/prometheus-mdns-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficewind1991%2Fprometheus-mdns-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficewind1991%2Fprometheus-mdns-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cc7b27d906042dc8ea4b02a3713d827bf05e072
[INFO] checking icewind1991/prometheus-mdns-rs against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficewind1991%2Fprometheus-mdns-rs" "/workspace/builds/worker-57/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-57/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/icewind1991/prometheus-mdns-rs on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/icewind1991/prometheus-mdns-rs
[INFO] finished tweaking git repo https://github.com/icewind1991/prometheus-mdns-rs
[INFO] tweaked toml for git repo https://github.com/icewind1991/prometheus-mdns-rs written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate git repo https://github.com/icewind1991/prometheus-mdns-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomicwrites v0.2.5
[INFO] [stderr]   Downloaded mdns v2.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e194e6e6a8ceb603d5c206656b67525f2b8bc6004f8d6f8b5ae063e64785de27
[INFO] running `Command { std: "docker" "start" "-a" "e194e6e6a8ceb603d5c206656b67525f2b8bc6004f8d6f8b5ae063e64785de27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e194e6e6a8ceb603d5c206656b67525f2b8bc6004f8d6f8b5ae063e64785de27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e194e6e6a8ceb603d5c206656b67525f2b8bc6004f8d6f8b5ae063e64785de27", kill_on_drop: false }`
[INFO] [stdout] e194e6e6a8ceb603d5c206656b67525f2b8bc6004f8d6f8b5ae063e64785de27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d6217c2a6f9c49bc24d33706c83150ad1765bace4ab7a898c39d8a58bdf150c
[INFO] running `Command { std: "docker" "start" "-a" "8d6217c2a6f9c49bc24d33706c83150ad1765bace4ab7a898c39d8a58bdf150c", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   libc v0.2.84: align
[INFO] [stderr] 
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking main_error v0.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]    Compiling tokio v1.1.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]     Checking atomicwrites v0.2.5
[INFO] [stderr]     Checking async-stream v0.2.1
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking mdns v2.0.2
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking prometheus-mdns-sd-rs v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.00s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking tokio v1.1.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking mdns v2.0.2
[INFO] [stderr]     Checking atomicwrites v0.2.5
[INFO] [stderr]     Checking prometheus-mdns-sd-rs v0.1.0 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "8d6217c2a6f9c49bc24d33706c83150ad1765bace4ab7a898c39d8a58bdf150c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d6217c2a6f9c49bc24d33706c83150ad1765bace4ab7a898c39d8a58bdf150c", kill_on_drop: false }`
[INFO] [stdout] 8d6217c2a6f9c49bc24d33706c83150ad1765bace4ab7a898c39d8a58bdf150c