[INFO] fetching crate unicom-tcp 0.2.0...
[INFO] documenting unicom-tcp-0.2.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate unicom-tcp 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate unicom-tcp 0.2.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unicom-tcp 0.2.0
[INFO] finished tweaking crates.io crate unicom-tcp 0.2.0
[INFO] tweaked toml for crates.io crate unicom-tcp 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-std-resolver v0.20.4
[INFO] [stderr]   Downloaded unicom v0.2.0
[INFO] [stderr]   Downloaded unicom-nres v0.2.0
[INFO] [stderr]   Downloaded trust-dns-proto v0.20.4
[INFO] [stderr]   Downloaded trust-dns-resolver v0.20.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30a65e9e21c9c91ed24b72102451602d27ff8e1bc10ca698403def2d14203641
[INFO] running `Command { std: "docker" "start" "-a" "30a65e9e21c9c91ed24b72102451602d27ff8e1bc10ca698403def2d14203641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30a65e9e21c9c91ed24b72102451602d27ff8e1bc10ca698403def2d14203641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30a65e9e21c9c91ed24b72102451602d27ff8e1bc10ca698403def2d14203641", kill_on_drop: false }`
[INFO] [stdout] 30a65e9e21c9c91ed24b72102451602d27ff8e1bc10ca698403def2d14203641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a107390305248bd1ebf02baf85acabe72f95e4761a1b42a611b81b417f39857
[INFO] running `Command { std: "docker" "start" "-a" "0a107390305248bd1ebf02baf85acabe72f95e4761a1b42a611b81b417f39857", kill_on_drop: false }`
[INFO] [stderr]     Checking value-bag v1.7.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking unicom v0.2.0
[INFO] [stdout] error: Either of features should be selected: futures, tokio, async-std
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/unicom-0.2.0/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | compile_error!("Either of features should be selected: futures, tokio, async-std");
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unicom` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0a107390305248bd1ebf02baf85acabe72f95e4761a1b42a611b81b417f39857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a107390305248bd1ebf02baf85acabe72f95e4761a1b42a611b81b417f39857", kill_on_drop: false }`
[INFO] [stdout] 0a107390305248bd1ebf02baf85acabe72f95e4761a1b42a611b81b417f39857
