[INFO] cloning repository https://github.com/arjanvaneersel/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/arjanvaneersel/rust-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farjanvaneersel%2Frust-blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farjanvaneersel%2Frust-blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad14b978a7735f51ca6a3c99cd7f9de3193fed2b
[INFO] documenting arjanvaneersel/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%2Farjanvaneersel%2Frust-blockchain" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arjanvaneersel/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/arjanvaneersel/rust-blockchain
[INFO] finished tweaking git repo https://github.com/arjanvaneersel/rust-blockchain
[INFO] tweaked toml for git repo https://github.com/arjanvaneersel/rust-blockchain written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/arjanvaneersel/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]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.2.2
[INFO] [stderr]   Downloaded proc-macro2 v0.2.3
[INFO] [stderr]   Downloaded quote v0.4.2
[INFO] [stderr]   Downloaded dtoa v0.4.2
[INFO] [stderr]   Downloaded serde_derive v1.0.33
[INFO] [stderr]   Downloaded byte-tools v0.2.0
[INFO] [stderr]   Downloaded typenum v1.10.0
[INFO] [stderr]   Downloaded libc v0.2.39
[INFO] [stderr]   Downloaded generic-array v0.9.0
[INFO] [stderr]   Downloaded digest v0.7.2
[INFO] [stderr]   Downloaded block-buffer v0.3.3
[INFO] [stderr]   Downloaded unicode-xid v0.1.0
[INFO] [stderr]   Downloaded serde v1.0.33
[INFO] [stderr]   Downloaded serde_derive_internals v0.21.0
[INFO] [stderr]   Downloaded arrayref v0.3.4
[INFO] [stderr]   Downloaded time v0.1.39
[INFO] [stderr]   Downloaded winapi v0.3.4
[INFO] [stderr]   Downloaded fake-simd v0.1.2
[INFO] [stderr]   Downloaded sha2 v0.7.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.37
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded itoa v0.4.0
[INFO] [stderr]   Downloaded syn v0.12.14
[INFO] [stderr]   Downloaded serde_json v1.0.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 90b424434833db7d5e49ae8516e2ef66346e9355254cd2ecd6ea4680676a804a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "90b424434833db7d5e49ae8516e2ef66346e9355254cd2ecd6ea4680676a804a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90b424434833db7d5e49ae8516e2ef66346e9355254cd2ecd6ea4680676a804a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90b424434833db7d5e49ae8516e2ef66346e9355254cd2ecd6ea4680676a804a", kill_on_drop: false }`
[INFO] [stdout] 90b424434833db7d5e49ae8516e2ef66346e9355254cd2ecd6ea4680676a804a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 36f03021cd3e0d875ecaade29393f69925bcbb4d7b3fa2b5df27d7325c7a7d23
[INFO] running `Command { std: "docker" "start" "-a" "36f03021cd3e0d875ecaade29393f69925bcbb4d7b3fa2b5df27d7325c7a7d23", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking itoa v0.4.0
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking serde v1.0.33
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking digest v0.7.2
[INFO] [stderr]     Checking sha2 v0.7.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]    Compiling serde_derive_internals v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.33
[INFO] [stderr]     Checking serde_json v1.0.12
[INFO] [stderr]  Documenting bfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.07s
[INFO] running `Command { std: "docker" "inspect" "36f03021cd3e0d875ecaade29393f69925bcbb4d7b3fa2b5df27d7325c7a7d23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36f03021cd3e0d875ecaade29393f69925bcbb4d7b3fa2b5df27d7325c7a7d23", kill_on_drop: false }`
[INFO] [stdout] 36f03021cd3e0d875ecaade29393f69925bcbb4d7b3fa2b5df27d7325c7a7d23