[INFO] fetching crate membership 0.0.6...
[INFO] documenting membership-0.0.6 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate membership 0.0.6 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate membership 0.0.6 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 membership 0.0.6
[INFO] finished tweaking crates.io crate membership 0.0.6
[INFO] tweaked toml for crates.io crate membership 0.0.6 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate membership 0.0.6 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] 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] [stdout] ceb87e36b66cf018e532e4c9fb40845715eb91f81fde2eb27664462116a287aa
[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" "ceb87e36b66cf018e532e4c9fb40845715eb91f81fde2eb27664462116a287aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ceb87e36b66cf018e532e4c9fb40845715eb91f81fde2eb27664462116a287aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb87e36b66cf018e532e4c9fb40845715eb91f81fde2eb27664462116a287aa", kill_on_drop: false }`
[INFO] [stdout] ceb87e36b66cf018e532e4c9fb40845715eb91f81fde2eb27664462116a287aa
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4d05f851b858cd4cfe4371c56077ab931a3ae4e93bff0b0ce8c62ad86d0374f4
[INFO] running `Command { std: "docker" "start" "-a" "4d05f851b858cd4cfe4371c56077ab931a3ae4e93bff0b0ce8c62ad86d0374f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_pcg v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking membership v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting membership v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.53s
[INFO] running `Command { std: "docker" "inspect" "4d05f851b858cd4cfe4371c56077ab931a3ae4e93bff0b0ce8c62ad86d0374f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d05f851b858cd4cfe4371c56077ab931a3ae4e93bff0b0ce8c62ad86d0374f4", kill_on_drop: false }`
[INFO] [stdout] 4d05f851b858cd4cfe4371c56077ab931a3ae4e93bff0b0ce8c62ad86d0374f4