[INFO] fetching crate sparse_complex 0.1.4...
[INFO] documenting sparse_complex-0.1.4 against nightly for scrape-examples
[INFO] extracting crate sparse_complex 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sparse_complex 0.1.4 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 crates.io crate sparse_complex 0.1.4
[INFO] finished tweaking crates.io crate sparse_complex 0.1.4
[INFO] tweaked toml for crates.io crate sparse_complex 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+nightly" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 899c1e3a11f7f2d58433492230133f31a74ed10f938c1fe7ea5eb4dbd99889ea
[INFO] running `Command { std: "docker" "start" "-a" "899c1e3a11f7f2d58433492230133f31a74ed10f938c1fe7ea5eb4dbd99889ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "899c1e3a11f7f2d58433492230133f31a74ed10f938c1fe7ea5eb4dbd99889ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899c1e3a11f7f2d58433492230133f31a74ed10f938c1fe7ea5eb4dbd99889ea", kill_on_drop: false }`
[INFO] [stdout] 899c1e3a11f7f2d58433492230133f31a74ed10f938c1fe7ea5eb4dbd99889ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 75ef5ca90a763b657ef32e6149c9c2c1a9437c6334b9e93535b9290282a053bf
[INFO] running `Command { std: "docker" "start" "-a" "75ef5ca90a763b657ef32e6149c9c2c1a9437c6334b9e93535b9290282a053bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling flate2 v1.0.25
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling filetime v0.2.19
[INFO] [stderr]    Compiling xattr v0.2.3
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling openssl-sys v0.9.79
[INFO] [stderr]    Compiling curl-sys v0.4.59+curl-7.86.0
[INFO] [stderr]    Compiling tar v0.4.38
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling sparse_complex v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `sparse_complex v0.1.4 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/sparse_complex-cd53011747cb4726/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Error { description: "Couldn't resolve host name", code: 6, extra: Some("Could not resolve host: gitlab.com") }
[INFO] running `Command { std: "docker" "inspect" "75ef5ca90a763b657ef32e6149c9c2c1a9437c6334b9e93535b9290282a053bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75ef5ca90a763b657ef32e6149c9c2c1a9437c6334b9e93535b9290282a053bf", kill_on_drop: false }`
[INFO] [stdout] 75ef5ca90a763b657ef32e6149c9c2c1a9437c6334b9e93535b9290282a053bf