[INFO] cloning repository https://github.com/gmadrid/isig
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gmadrid/isig" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgmadrid%2Fisig", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgmadrid%2Fisig'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47f8d21ff6f2814ba77da635d29c0d772bf68b9c
[INFO] documenting gmadrid/isig against nightly for scrape-examples
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgmadrid%2Fisig" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gmadrid/isig on toolchain nightly
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gmadrid/isig
[INFO] finished tweaking git repo https://github.com/gmadrid/isig
[INFO] tweaked toml for git repo https://github.com/gmadrid/isig written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/gmadrid/isig already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v0.8.8
[INFO] [stderr]   Downloaded core-graphics v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1b2b7fdcbbec8fc4620d16c1e83f4e699f1684ab73cbd294d2c186f8d5cffb3
[INFO] running `Command { std: "docker" "start" "-a" "e1b2b7fdcbbec8fc4620d16c1e83f4e699f1684ab73cbd294d2c186f8d5cffb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1b2b7fdcbbec8fc4620d16c1e83f4e699f1684ab73cbd294d2c186f8d5cffb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b2b7fdcbbec8fc4620d16c1e83f4e699f1684ab73cbd294d2c186f8d5cffb3", kill_on_drop: false }`
[INFO] [stdout] e1b2b7fdcbbec8fc4620d16c1e83f4e699f1684ab73cbd294d2c186f8d5cffb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 885b74163c499c6bab431f424e86ec517306e81b129f5616c3445041b9f4829a
[INFO] running `Command { std: "docker" "start" "-a" "885b74163c499c6bab431f424e86ec517306e81b129f5616c3445041b9f4829a", kill_on_drop: false }`
[INFO] [stderr]    Compiling core-foundation-sys v0.2.2
[INFO] [stderr]     Checking libc v0.2.16
[INFO] [stderr]     Checking serde v0.8.8
[INFO] [stdout] error: library kind `framework` is only supported on Apple targets
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `core-foundation-sys` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "885b74163c499c6bab431f424e86ec517306e81b129f5616c3445041b9f4829a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "885b74163c499c6bab431f424e86ec517306e81b129f5616c3445041b9f4829a", kill_on_drop: false }`
[INFO] [stdout] 885b74163c499c6bab431f424e86ec517306e81b129f5616c3445041b9f4829a