[INFO] cloning repository https://github.com/denelvis/rust_blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/denelvis/rust_blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenelvis%2Frust_blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenelvis%2Frust_blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cb165ff7f92497e176c1509cd8346be241c9ea9
[INFO] documenting denelvis/rust_blockchain against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenelvis%2Frust_blockchain" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/denelvis/rust_blockchain on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/denelvis/rust_blockchain
[INFO] finished tweaking git repo https://github.com/denelvis/rust_blockchain
[INFO] tweaked toml for git repo https://github.com/denelvis/rust_blockchain written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/denelvis/rust_blockchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha2 v0.10.2
[INFO] [stderr]   Downloaded block-buffer v0.10.2
[INFO] [stderr]   Downloaded crypto-common v0.1.3
[INFO] [stderr]   Downloaded digest v0.10.3
[INFO] [stderr]   Downloaded typenum v1.15.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.2
[INFO] [stderr]   Downloaded time v0.3.9
[INFO] [stderr]   Downloaded ryu v1.0.9
[INFO] [stderr]   Downloaded itoa v1.0.1
[INFO] [stderr]   Downloaded serde v1.0.136
[INFO] [stderr]   Downloaded quote v1.0.17
[INFO] [stderr]   Downloaded serde_derive v1.0.136
[INFO] [stderr]   Downloaded serde_json v1.0.79
[INFO] [stderr]   Downloaded num_threads v0.1.5
[INFO] [stderr]   Downloaded syn v1.0.91
[INFO] [stderr]   Downloaded generic-array v0.14.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.37
[INFO] [stderr]   Downloaded version_check v0.9.4
[INFO] [stderr]   Downloaded libc v0.2.122
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 658ad02b4d3e600bd4047a4529e4e96c7f04c5985b6ae4e08939289ac9e43f51
[INFO] running `Command { std: "docker" "start" "-a" "658ad02b4d3e600bd4047a4529e4e96c7f04c5985b6ae4e08939289ac9e43f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "658ad02b4d3e600bd4047a4529e4e96c7f04c5985b6ae4e08939289ac9e43f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "658ad02b4d3e600bd4047a4529e4e96c7f04c5985b6ae4e08939289ac9e43f51", kill_on_drop: false }`
[INFO] [stdout] 658ad02b4d3e600bd4047a4529e4e96c7f04c5985b6ae4e08939289ac9e43f51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e350b48e0c317bd3efc620faa084f0e7d53270b27eed35d97efaa1a1cff595d1
[INFO] running `Command { std: "docker" "start" "-a" "e350b48e0c317bd3efc620faa084f0e7d53270b27eed35d97efaa1a1cff595d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking num_threads v0.1.5
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking sha2 v0.10.2
[INFO] [stderr]     Checking serde_json v1.0.79
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]  Documenting blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.74s
[INFO] running `Command { std: "docker" "inspect" "e350b48e0c317bd3efc620faa084f0e7d53270b27eed35d97efaa1a1cff595d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e350b48e0c317bd3efc620faa084f0e7d53270b27eed35d97efaa1a1cff595d1", kill_on_drop: false }`
[INFO] [stdout] e350b48e0c317bd3efc620faa084f0e7d53270b27eed35d97efaa1a1cff595d1