[INFO] fetching crate formdata 0.12.3...
[INFO] documenting formdata-0.12.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate formdata 0.12.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate formdata 0.12.3 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 crates.io crate formdata 0.12.3
[INFO] finished tweaking crates.io crate formdata 0.12.3
[INFO] tweaked toml for crates.io crate formdata 0.12.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] 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] [stdout] 5457635c66370c1680d768bcc3c82df733e58c252f5dc98f41387f75431fd642
[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" "5457635c66370c1680d768bcc3c82df733e58c252f5dc98f41387f75431fd642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5457635c66370c1680d768bcc3c82df733e58c252f5dc98f41387f75431fd642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5457635c66370c1680d768bcc3c82df733e58c252f5dc98f41387f75431fd642", kill_on_drop: false }`
[INFO] [stdout] 5457635c66370c1680d768bcc3c82df733e58c252f5dc98f41387f75431fd642
[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] 1620b9c7d17ed066be44afff25b1dca87f35e5b72da2d145735042c4d339a112
[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" "1620b9c7d17ed066be44afff25b1dca87f35e5b72da2d145735042c4d339a112", kill_on_drop: false }`
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking textnonce v0.6.5
[INFO] [stderr]     Checking buf-read-ext v0.3.0
[INFO] [stderr]     Checking mime_multipart v0.5.2
[INFO] [stderr]  Documenting formdata v0.12.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.13s
[INFO] running `Command { std: "docker" "inspect" "1620b9c7d17ed066be44afff25b1dca87f35e5b72da2d145735042c4d339a112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1620b9c7d17ed066be44afff25b1dca87f35e5b72da2d145735042c4d339a112", kill_on_drop: false }`
[INFO] [stdout] 1620b9c7d17ed066be44afff25b1dca87f35e5b72da2d145735042c4d339a112