[INFO] cloning repository https://github.com/BlockListed/duckdnsv6
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BlockListed/duckdnsv6" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlockListed%2Fduckdnsv6", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlockListed%2Fduckdnsv6'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecb8510b0a9682bf41016e0a95bd88b84d43e885
[INFO] checking BlockListed/duckdnsv6 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlockListed%2Fduckdnsv6" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlockListed/duckdnsv6 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BlockListed/duckdnsv6
[INFO] finished tweaking git repo https://github.com/BlockListed/duckdnsv6
[INFO] tweaked toml for git repo https://github.com/BlockListed/duckdnsv6 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BlockListed/duckdnsv6 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded castaway v0.1.1
[INFO] [stderr]   Downloaded fastrand v1.5.0
[INFO] [stderr]   Downloaded polling v2.1.0
[INFO] [stderr]   Downloaded curl v0.4.39
[INFO] [stderr]   Downloaded async-channel v1.6.1
[INFO] [stderr]   Downloaded isahc v1.5.1
[INFO] [stderr]   Downloaded curl-sys v0.4.49+curl-7.79.1
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.7+1.45.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b28074c5195864ae5f404cbfc7fb57ab39a446c77e0f37d0571cd9b5e27cf14
[INFO] running `Command { std: "docker" "start" "-a" "2b28074c5195864ae5f404cbfc7fb57ab39a446c77e0f37d0571cd9b5e27cf14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b28074c5195864ae5f404cbfc7fb57ab39a446c77e0f37d0571cd9b5e27cf14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b28074c5195864ae5f404cbfc7fb57ab39a446c77e0f37d0571cd9b5e27cf14", kill_on_drop: false }`
[INFO] [stdout] 2b28074c5195864ae5f404cbfc7fb57ab39a446c77e0f37d0571cd9b5e27cf14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3b081eb9123f1100c98264f51562fdbb99575ab9b2695d64372179673743485
[INFO] running `Command { std: "docker" "start" "-a" "a3b081eb9123f1100c98264f51562fdbb99575ab9b2695d64372179673743485", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking tinyvec v1.5.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling curl v0.4.39
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling isahc v1.5.1
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking sluice v0.5.5
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr]     Checking castaway v0.1.1
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.7+1.45.0
[INFO] [stderr]    Compiling openssl-sys v0.9.67
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.49+curl-7.79.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking polling v2.1.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking pin-project v1.0.8
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking string_cache v0.8.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking scraper v0.12.0
[INFO] [stderr]     Checking duckdnsv6 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.88s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: html5ever v0.25.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "a3b081eb9123f1100c98264f51562fdbb99575ab9b2695d64372179673743485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3b081eb9123f1100c98264f51562fdbb99575ab9b2695d64372179673743485", kill_on_drop: false }`
[INFO] [stdout] a3b081eb9123f1100c98264f51562fdbb99575ab9b2695d64372179673743485