[INFO] cloning repository https://github.com/MPult/nano-dhcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MPult/nano-dhcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMPult%2Fnano-dhcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMPult%2Fnano-dhcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 478f3de6e86d75ad24ea2bf4f962886723af9a50
[INFO] checking MPult/nano-dhcp against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMPult%2Fnano-dhcp" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MPult/nano-dhcp on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MPult/nano-dhcp
[INFO] finished tweaking git repo https://github.com/MPult/nano-dhcp
[INFO] tweaked toml for git repo https://github.com/MPult/nano-dhcp written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MPult/nano-dhcp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dhcproto-macros v0.1.0
[INFO] [stderr]   Downloaded dhcproto v0.9.0
[INFO] [stderr]   Downloaded cc v1.0.81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30b3e405b269d71d0075b2dbd39fd494a69fdf0de2dde20900f11ef8bf805068
[INFO] running `Command { std: "docker" "start" "-a" "30b3e405b269d71d0075b2dbd39fd494a69fdf0de2dde20900f11ef8bf805068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30b3e405b269d71d0075b2dbd39fd494a69fdf0de2dde20900f11ef8bf805068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30b3e405b269d71d0075b2dbd39fd494a69fdf0de2dde20900f11ef8bf805068", kill_on_drop: false }`
[INFO] [stdout] 30b3e405b269d71d0075b2dbd39fd494a69fdf0de2dde20900f11ef8bf805068
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75420f530a1516423cfaaf6dfc6f271ef88ce8975c1da7d155de8ad576a1bf2b
[INFO] running `Command { std: "docker" "start" "-a" "75420f530a1516423cfaaf6dfc6f271ef88ce8975c1da7d155de8ad576a1bf2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling async-trait v0.1.72
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking ipnet v2.8.0
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking data-encoding v2.4.0
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling dhcproto-macros v0.1.0
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]    Compiling enum-as-inner v0.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.29.1
[INFO] [stderr]     Checking thiserror v1.0.44
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking trust-dns-proto v0.22.0
[INFO] [stderr]     Checking dhcproto v0.9.0
[INFO] [stderr]     Checking nano-dhcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.72s
[INFO] running `Command { std: "docker" "inspect" "75420f530a1516423cfaaf6dfc6f271ef88ce8975c1da7d155de8ad576a1bf2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75420f530a1516423cfaaf6dfc6f271ef88ce8975c1da7d155de8ad576a1bf2b", kill_on_drop: false }`
[INFO] [stdout] 75420f530a1516423cfaaf6dfc6f271ef88ce8975c1da7d155de8ad576a1bf2b