[INFO] cloning repository https://github.com/csschan/merkle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/csschan/merkle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcsschan%2Fmerkle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcsschan%2Fmerkle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bef4d0d93baf840fec58c8e9f503a1548ac8bdc9
[INFO] documenting csschan/merkle 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%2Fcsschan%2Fmerkle" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/csschan/merkle 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/csschan/merkle
[INFO] finished tweaking git repo https://github.com/csschan/merkle
[INFO] tweaked toml for git repo https://github.com/csschan/merkle written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/csschan/merkle 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]  Downloading crates ...
[INFO] [stderr]   Downloaded clippy v0.0.302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] afe96cbad13c56cfad453cba8685d8171f2bcc83fffa3f3bb60822cdb12b1dc9
[INFO] running `Command { std: "docker" "start" "-a" "afe96cbad13c56cfad453cba8685d8171f2bcc83fffa3f3bb60822cdb12b1dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afe96cbad13c56cfad453cba8685d8171f2bcc83fffa3f3bb60822cdb12b1dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afe96cbad13c56cfad453cba8685d8171f2bcc83fffa3f3bb60822cdb12b1dc9", kill_on_drop: false }`
[INFO] [stdout] afe96cbad13c56cfad453cba8685d8171f2bcc83fffa3f3bb60822cdb12b1dc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 3b6e79b151ddc0286cf95d5c972bc3435b928dc045895b0a313d9ad6d82c51b6
[INFO] running `Command { std: "docker" "start" "-a" "3b6e79b151ddc0286cf95d5c972bc3435b928dc045895b0a313d9ad6d82c51b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]  Documenting merkle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Hasher`
[INFO] [stdout]    --> src/lib.rs:401:19
[INFO] [stdout]     |
[INFO] [stdout] 401 | /// The default [`Hasher`] used by [`MerkleTree`].
[INFO] [stdout]     |                   ^^^^^^ no item named `Hasher` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.24s
[INFO] running `Command { std: "docker" "inspect" "3b6e79b151ddc0286cf95d5c972bc3435b928dc045895b0a313d9ad6d82c51b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b6e79b151ddc0286cf95d5c972bc3435b928dc045895b0a313d9ad6d82c51b6", kill_on_drop: false }`
[INFO] [stdout] 3b6e79b151ddc0286cf95d5c972bc3435b928dc045895b0a313d9ad6d82c51b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 76c14fe356a999f18c26e84ba5dcbc4172d2be6f3f5549ec9e95f292ff6160c1
[INFO] running `Command { std: "docker" "start" "-a" "76c14fe356a999f18c26e84ba5dcbc4172d2be6f3f5549ec9e95f292ff6160c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]  Documenting merkle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Hasher`
[INFO] [stdout]    --> src/lib.rs:401:19
[INFO] [stdout]     |
[INFO] [stdout] 401 | /// The default [`Hasher`] used by [`MerkleTree`].
[INFO] [stdout]     |                   ^^^^^^ no item named `Hasher` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.03s
[INFO] running `Command { std: "docker" "inspect" "76c14fe356a999f18c26e84ba5dcbc4172d2be6f3f5549ec9e95f292ff6160c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c14fe356a999f18c26e84ba5dcbc4172d2be6f3f5549ec9e95f292ff6160c1", kill_on_drop: false }`
[INFO] [stdout] 76c14fe356a999f18c26e84ba5dcbc4172d2be6f3f5549ec9e95f292ff6160c1