[INFO] fetching crate mp4 0.7.0...
[INFO] documenting mp4-0.7.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate mp4 0.7.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mp4 0.7.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mp4 0.7.0
[INFO] finished tweaking crates.io crate mp4 0.7.0
[INFO] tweaked toml for crates.io crate mp4 0.7.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate mp4 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta-2020-10-09" "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] 52a91d130a37b36e0159572a1e6effdae17d21b4f8a35713ac8e9cfc74b05945
[INFO] running `Command { std: "docker" "start" "-a" "52a91d130a37b36e0159572a1e6effdae17d21b4f8a35713ac8e9cfc74b05945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52a91d130a37b36e0159572a1e6effdae17d21b4f8a35713ac8e9cfc74b05945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a91d130a37b36e0159572a1e6effdae17d21b4f8a35713ac8e9cfc74b05945", kill_on_drop: false }`
[INFO] [stdout] 52a91d130a37b36e0159572a1e6effdae17d21b4f8a35713ac8e9cfc74b05945
[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" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 595174c5e96d7610f7280136d585d611581d8f181f446251a2f40d333c1f9460
[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" "595174c5e96d7610f7280136d585d611581d8f181f446251a2f40d333c1f9460", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]  Documenting mp4 v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.20s
[INFO] running `Command { std: "docker" "inspect" "595174c5e96d7610f7280136d585d611581d8f181f446251a2f40d333c1f9460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "595174c5e96d7610f7280136d585d611581d8f181f446251a2f40d333c1f9460", kill_on_drop: false }`
[INFO] [stdout] 595174c5e96d7610f7280136d585d611581d8f181f446251a2f40d333c1f9460
