[INFO] fetching crate alt_serde_derive 1.0.104...
[INFO] documenting alt_serde_derive-1.0.104 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate alt_serde_derive 1.0.104 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate alt_serde_derive 1.0.104 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 alt_serde_derive 1.0.104
[INFO] finished tweaking crates.io crate alt_serde_derive 1.0.104
[INFO] tweaked toml for crates.io crate alt_serde_derive 1.0.104 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 17d89e5ab0978e5b1f8592b8d84fdf09bc4b22eb586f2d68a55e02304ad8356e
[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" "17d89e5ab0978e5b1f8592b8d84fdf09bc4b22eb586f2d68a55e02304ad8356e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17d89e5ab0978e5b1f8592b8d84fdf09bc4b22eb586f2d68a55e02304ad8356e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17d89e5ab0978e5b1f8592b8d84fdf09bc4b22eb586f2d68a55e02304ad8356e", kill_on_drop: false }`
[INFO] [stdout] 17d89e5ab0978e5b1f8592b8d84fdf09bc4b22eb586f2d68a55e02304ad8356e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 599989b13df7f3b68953bf80b354b97a61f91e63ad4f52df3ddea85b5925cdb2
[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" "599989b13df7f3b68953bf80b354b97a61f91e63ad4f52df3ddea85b5925cdb2", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking proc-macro2 v1.0.19
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]  Documenting alt_serde_derive v1.0.104 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.42s
[INFO] running `Command { std: "docker" "inspect" "599989b13df7f3b68953bf80b354b97a61f91e63ad4f52df3ddea85b5925cdb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "599989b13df7f3b68953bf80b354b97a61f91e63ad4f52df3ddea85b5925cdb2", kill_on_drop: false }`
[INFO] [stdout] 599989b13df7f3b68953bf80b354b97a61f91e63ad4f52df3ddea85b5925cdb2