[INFO] cloning repository https://github.com/hch12907/v6synth-dns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hch12907/v6synth-dns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Fv6synth-dns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Fv6synth-dns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19a8d6bf5a18b31a85aad6603e9f1c6d69e2a52a
[INFO] checking hch12907/v6synth-dns against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Fv6synth-dns" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hch12907/v6synth-dns on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hch12907/v6synth-dns
[INFO] finished tweaking git repo https://github.com/hch12907/v6synth-dns
[INFO] tweaked toml for git repo https://github.com/hch12907/v6synth-dns written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hch12907/v6synth-dns 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hickory-server v0.25.0-alpha.2
[INFO] [stderr]   Downloaded hickory-client v0.25.0-alpha.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e23d1fdb7f6ac3d2e6470208f333ba20940bfc49443245f9db7d1490a649185
[INFO] running `Command { std: "docker" "start" "-a" "2e23d1fdb7f6ac3d2e6470208f333ba20940bfc49443245f9db7d1490a649185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e23d1fdb7f6ac3d2e6470208f333ba20940bfc49443245f9db7d1490a649185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e23d1fdb7f6ac3d2e6470208f333ba20940bfc49443245f9db7d1490a649185", kill_on_drop: false }`
[INFO] [stdout] 2e23d1fdb7f6ac3d2e6470208f333ba20940bfc49443245f9db7d1490a649185
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f2ca0aa36d3ee7e0e2a07fb0170eab0775ec31426996cd78d573b5681e02265
[INFO] running `Command { std: "docker" "start" "-a" "0f2ca0aa36d3ee7e0e2a07fb0170eab0775ec31426996cd78d573b5681e02265", kill_on_drop: false }`
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[INFO] [stdout] warning: field `blacklist` is never read
[INFO] [stdout]   --> src/script.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct LoadedScripts {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 20 |     pub scripts: Vec<Script>,
[INFO] [stdout] 21 |     pub blacklist: HashSet<String>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blacklist` is never read
[INFO] [stdout]   --> src/script.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct LoadedScripts {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 20 |     pub scripts: Vec<Script>,
[INFO] [stdout] 21 |     pub blacklist: HashSet<String>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.56s
[INFO] running `Command { std: "docker" "inspect" "0f2ca0aa36d3ee7e0e2a07fb0170eab0775ec31426996cd78d573b5681e02265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f2ca0aa36d3ee7e0e2a07fb0170eab0775ec31426996cd78d573b5681e02265", kill_on_drop: false }`
[INFO] [stdout] 0f2ca0aa36d3ee7e0e2a07fb0170eab0775ec31426996cd78d573b5681e02265