[INFO] cloning repository https://github.com/mvasquezb/blockchains-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mvasquezb/blockchains-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvasquezb%2Fblockchains-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvasquezb%2Fblockchains-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87a3bb3033b819978620064083ae73029ea4149a
[INFO] documenting mvasquezb/blockchains-example against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvasquezb%2Fblockchains-example" "/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/mvasquezb/blockchains-example on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mvasquezb/blockchains-example
[INFO] finished tweaking git repo https://github.com/mvasquezb/blockchains-example
[INFO] tweaked toml for git repo https://github.com/mvasquezb/blockchains-example written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mvasquezb/blockchains-example 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/forrest-marshall/eth-crypto.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.4
[INFO] [stderr]   Downloaded tiny-keccak v1.3.1
[INFO] [stderr]   Downloaded secp256k1 v0.7.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91f5b8fdccaac445ceb1a23de2209488cabcfde2d0b115f6d7442b0dc7766f39
[INFO] running `Command { std: "docker" "start" "-a" "91f5b8fdccaac445ceb1a23de2209488cabcfde2d0b115f6d7442b0dc7766f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91f5b8fdccaac445ceb1a23de2209488cabcfde2d0b115f6d7442b0dc7766f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91f5b8fdccaac445ceb1a23de2209488cabcfde2d0b115f6d7442b0dc7766f39", kill_on_drop: false }`
[INFO] [stdout] 91f5b8fdccaac445ceb1a23de2209488cabcfde2d0b115f6d7442b0dc7766f39
[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=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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18b07ba18ab34834ec5f1e05c4d373661d11b9cfe533e9e47c881d3b5ec6a862
[INFO] running `Command { std: "docker" "start" "-a" "18b07ba18ab34834ec5f1e05c4d373661d11b9cfe533e9e47c881d3b5ec6a862", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking odds v0.2.25
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking serde v1.0.15
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking tiny-keccak v1.3.1
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking nodrop v0.1.10
[INFO] [stderr]     Checking arrayvec v0.3.23
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]    Compiling secp256k1 v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.4
[INFO] [stderr]     Checking eth-crypto v0.1.0 (https://github.com/forrest-marshall/eth-crypto.git#05179c7a)
[INFO] [stderr]  Documenting blockchains v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/blockchains/index.html
[INFO] running `Command { std: "docker" "inspect" "18b07ba18ab34834ec5f1e05c4d373661d11b9cfe533e9e47c881d3b5ec6a862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b07ba18ab34834ec5f1e05c4d373661d11b9cfe533e9e47c881d3b5ec6a862", kill_on_drop: false }`
[INFO] [stdout] 18b07ba18ab34834ec5f1e05c4d373661d11b9cfe533e9e47c881d3b5ec6a862