[INFO] fetching crate ipld 0.0.2...
[INFO] documenting ipld-0.0.2 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate ipld 0.0.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ipld 0.0.2 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ipld 0.0.2
[INFO] finished tweaking crates.io crate ipld 0.0.2
[INFO] tweaked toml for crates.io crate ipld 0.0.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5955d76e1b0d43534eb53ef0124ebff115b33757e15f80c543587774fcf908a
[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" "a5955d76e1b0d43534eb53ef0124ebff115b33757e15f80c543587774fcf908a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5955d76e1b0d43534eb53ef0124ebff115b33757e15f80c543587774fcf908a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5955d76e1b0d43534eb53ef0124ebff115b33757e15f80c543587774fcf908a", kill_on_drop: false }`
[INFO] [stdout] a5955d76e1b0d43534eb53ef0124ebff115b33757e15f80c543587774fcf908a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 2df067de8c4e4b7a2c75581e1a04d7d2c6419d347e4f6a4a785c2a14f98e38b5
[INFO] running `Command { std: "docker" "start" "-a" "2df067de8c4e4b7a2c75581e1a04d7d2c6419d347e4f6a4a785c2a14f98e38b5", kill_on_drop: false }`
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling data-encoding v2.2.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking unsigned-varint v0.3.3
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking base-x v0.2.6
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking integer-encoding v1.1.5
[INFO] [stderr]     Checking sha1 v0.5.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking multibase v0.7.0
[INFO] [stderr]     Checking multihash v0.10.1
[INFO] [stderr]     Checking multihash v0.9.4
[INFO] [stderr]     Checking addr2line v0.12.2
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.8
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]     Checking data-encoding-macro v0.1.8
[INFO] [stderr]     Checking multibase v0.8.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking cid v0.3.2
[INFO] [stderr]  Documenting ipld v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.56s
[INFO] running `Command { std: "docker" "inspect" "2df067de8c4e4b7a2c75581e1a04d7d2c6419d347e4f6a4a785c2a14f98e38b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df067de8c4e4b7a2c75581e1a04d7d2c6419d347e4f6a4a785c2a14f98e38b5", kill_on_drop: false }`
[INFO] [stdout] 2df067de8c4e4b7a2c75581e1a04d7d2c6419d347e4f6a4a785c2a14f98e38b5