[INFO] fetching crate realfft 0.2.1...
[INFO] documenting realfft-0.2.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate realfft 0.2.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate realfft 0.2.1 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 realfft 0.2.1
[INFO] finished tweaking crates.io crate realfft 0.2.1
[INFO] tweaked toml for crates.io crate realfft 0.2.1 written to /workspace/builds/worker-14/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 7df9e722f062337695dd8c443c400cb955d7c4d96755494df995dd5036ed0fa9
[INFO] running `Command { std: "docker" "start" "-a" "7df9e722f062337695dd8c443c400cb955d7c4d96755494df995dd5036ed0fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7df9e722f062337695dd8c443c400cb955d7c4d96755494df995dd5036ed0fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7df9e722f062337695dd8c443c400cb955d7c4d96755494df995dd5036ed0fa9", kill_on_drop: false }`
[INFO] [stdout] 7df9e722f062337695dd8c443c400cb955d7c4d96755494df995dd5036ed0fa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] c15c36fa4a0be9bf31f09f2b3f66a2451beba5a7729f8fcabeeccc6ebb449510
[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" "c15c36fa4a0be9bf31f09f2b3f66a2451beba5a7729f8fcabeeccc6ebb449510", kill_on_drop: false }`
[INFO] [stderr]     Checking transpose v0.1.0
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]     Checking rustfft v3.0.1
[INFO] [stderr]  Documenting realfft v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "c15c36fa4a0be9bf31f09f2b3f66a2451beba5a7729f8fcabeeccc6ebb449510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c15c36fa4a0be9bf31f09f2b3f66a2451beba5a7729f8fcabeeccc6ebb449510", kill_on_drop: false }`
[INFO] [stdout] c15c36fa4a0be9bf31f09f2b3f66a2451beba5a7729f8fcabeeccc6ebb449510