[INFO] fetching crate elfx86exts 0.4.0...
[INFO] documenting elfx86exts-0.4.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate elfx86exts 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate elfx86exts 0.4.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elfx86exts 0.4.0
[INFO] finished tweaking crates.io crate elfx86exts 0.4.0
[INFO] tweaked toml for crates.io crate elfx86exts 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate elfx86exts 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded capstone v0.7.0
[INFO] [stderr]   Downloaded predicates v1.0.4
[INFO] [stderr]   Downloaded object v0.18.0
[INFO] [stderr]   Downloaded assert_cmd v1.0.1
[INFO] [stderr]   Downloaded target-lexicon v0.10.0
[INFO] [stderr]   Downloaded capstone-sys v0.11.0
[INFO] [stderr]   Downloaded wasmparser v0.51.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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-2020-08-29" "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] 96c959ac68163b8a4b2c8144d5eef1793d8e9d2c6671d4c3e081269a26db7c83
[INFO] running `Command { std: "docker" "start" "-a" "96c959ac68163b8a4b2c8144d5eef1793d8e9d2c6671d4c3e081269a26db7c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96c959ac68163b8a4b2c8144d5eef1793d8e9d2c6671d4c3e081269a26db7c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96c959ac68163b8a4b2c8144d5eef1793d8e9d2c6671d4c3e081269a26db7c83", kill_on_drop: false }`
[INFO] [stdout] 96c959ac68163b8a4b2c8144d5eef1793d8e9d2c6671d4c3e081269a26db7c83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 123e033cbc398eebe1e819870105df6d29c8097b0f1f8114457121b3c95f5feb
[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" "123e033cbc398eebe1e819870105df6d29c8097b0f1f8114457121b3c95f5feb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]     Checking wasmparser v0.51.4
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling capstone-sys v0.11.0
[INFO] [stderr]     Checking object v0.18.0
[INFO] [stderr]     Checking capstone v0.7.0
[INFO] [stderr]  Documenting elfx86exts v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.76s
[INFO] running `Command { std: "docker" "inspect" "123e033cbc398eebe1e819870105df6d29c8097b0f1f8114457121b3c95f5feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "123e033cbc398eebe1e819870105df6d29c8097b0f1f8114457121b3c95f5feb", kill_on_drop: false }`
[INFO] [stdout] 123e033cbc398eebe1e819870105df6d29c8097b0f1f8114457121b3c95f5feb