[INFO] fetching crate curb 0.1.6...
[INFO] documenting curb-0.1.6 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate curb 0.1.6 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate curb 0.1.6 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 curb 0.1.6
[INFO] finished tweaking crates.io crate curb 0.1.6
[INFO] tweaked toml for crates.io crate curb 0.1.6 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate curb 0.1.6 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hwloc v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 40011a4fe7a30365d9acc2ffb5ed53a05d000a63ff5a9a3cf74ec7cf6fbe05e3
[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" "40011a4fe7a30365d9acc2ffb5ed53a05d000a63ff5a9a3cf74ec7cf6fbe05e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40011a4fe7a30365d9acc2ffb5ed53a05d000a63ff5a9a3cf74ec7cf6fbe05e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40011a4fe7a30365d9acc2ffb5ed53a05d000a63ff5a9a3cf74ec7cf6fbe05e3", kill_on_drop: false }`
[INFO] [stdout] 40011a4fe7a30365d9acc2ffb5ed53a05d000a63ff5a9a3cf74ec7cf6fbe05e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] e42c73b73a0cd8803abb6f3d921558f9d081f731af9b9bc1a8e3a6022abe7871
[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" "e42c73b73a0cd8803abb6f3d921558f9d081f731af9b9bc1a8e3a6022abe7871", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling hwloc v0.5.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.5
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.5
[INFO] [stderr]    Compiling structopt-derive v0.4.1
[INFO] [stderr]     Checking structopt v0.3.8
[INFO] [stderr]  Documenting curb v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.87s
[INFO] running `Command { std: "docker" "inspect" "e42c73b73a0cd8803abb6f3d921558f9d081f731af9b9bc1a8e3a6022abe7871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e42c73b73a0cd8803abb6f3d921558f9d081f731af9b9bc1a8e3a6022abe7871", kill_on_drop: false }`
[INFO] [stdout] e42c73b73a0cd8803abb6f3d921558f9d081f731af9b9bc1a8e3a6022abe7871