[INFO] fetching crate ibuilder_derive 0.1.6...
[INFO] documenting ibuilder_derive-0.1.6 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate ibuilder_derive 0.1.6 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ibuilder_derive 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 ibuilder_derive 0.1.6
[INFO] finished tweaking crates.io crate ibuilder_derive 0.1.6
[INFO] tweaked toml for crates.io crate ibuilder_derive 0.1.6 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8141427df74f3e9a7c6964d70b34451e8b0293283312aa02953965b14f40404c
[INFO] running `Command { std: "docker" "start" "-a" "8141427df74f3e9a7c6964d70b34451e8b0293283312aa02953965b14f40404c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8141427df74f3e9a7c6964d70b34451e8b0293283312aa02953965b14f40404c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8141427df74f3e9a7c6964d70b34451e8b0293283312aa02953965b14f40404c", kill_on_drop: false }`
[INFO] [stdout] 8141427df74f3e9a7c6964d70b34451e8b0293283312aa02953965b14f40404c
[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] ee387cce4ef28416895997fd54351ab4f5f0e22b6532a91fb18ac5ff7d84041f
[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" "ee387cce4ef28416895997fd54351ab4f5f0e22b6532a91fb18ac5ff7d84041f", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking proc-macro2 v1.0.19
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]  Documenting ibuilder_derive v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.63s
[INFO] running `Command { std: "docker" "inspect" "ee387cce4ef28416895997fd54351ab4f5f0e22b6532a91fb18ac5ff7d84041f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee387cce4ef28416895997fd54351ab4f5f0e22b6532a91fb18ac5ff7d84041f", kill_on_drop: false }`
[INFO] [stdout] ee387cce4ef28416895997fd54351ab4f5f0e22b6532a91fb18ac5ff7d84041f