[INFO] cloning repository https://github.com/dvc94ch/rust-ipld-collections
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dvc94ch/rust-ipld-collections" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvc94ch%2Frust-ipld-collections", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvc94ch%2Frust-ipld-collections'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb8a0d9a98c145658e50e19fbd6b80bbeb714c4f
[INFO] documenting dvc94ch/rust-ipld-collections against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvc94ch%2Frust-ipld-collections" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dvc94ch/rust-ipld-collections on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dvc94ch/rust-ipld-collections
[INFO] finished tweaking git repo https://github.com/dvc94ch/rust-ipld-collections
[INFO] tweaked toml for git repo https://github.com/dvc94ch/rust-ipld-collections written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dvc94ch/rust-ipld-collections already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", 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] 58c7ec2cb258637c912c4f3f0dad2774243ef24cbc7f83e241f73cff74fffdd7
[INFO] running `Command { std: "docker" "start" "-a" "58c7ec2cb258637c912c4f3f0dad2774243ef24cbc7f83e241f73cff74fffdd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58c7ec2cb258637c912c4f3f0dad2774243ef24cbc7f83e241f73cff74fffdd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58c7ec2cb258637c912c4f3f0dad2774243ef24cbc7f83e241f73cff74fffdd7", kill_on_drop: false }`
[INFO] [stdout] 58c7ec2cb258637c912c4f3f0dad2774243ef24cbc7f83e241f73cff74fffdd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7039ca6689e91278c2f9b5e19b747c6aab6548f4f426be081df6918a53f41c9
[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" "c7039ca6689e91278c2f9b5e19b747c6aab6548f4f426be081df6918a53f41c9", 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]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling data-encoding v2.2.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking unsigned-varint v0.5.0
[INFO] [stderr]     Checking base-x v0.2.6
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking pin-project-lite v0.1.5
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking cached v0.18.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]     Checking kv-log-macro v1.0.5
[INFO] [stderr]     Checking strobe-rs v0.5.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.8
[INFO] [stderr]    Compiling tiny-multihash-derive v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling libipld-cbor-derive v0.4.0
[INFO] [stderr]    Compiling async-trait v0.1.38
[INFO] [stderr]     Checking data-encoding-macro v0.1.8
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]     Checking multibase v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking tiny-multihash v0.4.0
[INFO] [stderr]     Checking tiny-cid v0.2.0
[INFO] [stderr]     Checking libipld-core v0.4.0
[INFO] [stderr]     Checking libipld-macro v0.4.0
[INFO] [stderr]     Checking libipld-cbor v0.4.0
[INFO] [stderr]     Checking libipld v0.4.0
[INFO] [stderr]  Documenting ipld-collections v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.80s
[INFO] running `Command { std: "docker" "inspect" "c7039ca6689e91278c2f9b5e19b747c6aab6548f4f426be081df6918a53f41c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7039ca6689e91278c2f9b5e19b747c6aab6548f4f426be081df6918a53f41c9", kill_on_drop: false }`
[INFO] [stdout] c7039ca6689e91278c2f9b5e19b747c6aab6548f4f426be081df6918a53f41c9