[INFO] fetching crate t4rust-derive 0.2.0...
[INFO] documenting t4rust-derive-0.2.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate t4rust-derive 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate t4rust-derive 0.2.0 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 t4rust-derive 0.2.0
[INFO] finished tweaking crates.io crate t4rust-derive 0.2.0
[INFO] tweaked toml for crates.io crate t4rust-derive 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate t4rust-derive 0.2.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 573bb1aefdf047278e8e56e7d1135d56b1e12b742be868f91a8c5344a69ae77a
[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" "573bb1aefdf047278e8e56e7d1135d56b1e12b742be868f91a8c5344a69ae77a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "573bb1aefdf047278e8e56e7d1135d56b1e12b742be868f91a8c5344a69ae77a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "573bb1aefdf047278e8e56e7d1135d56b1e12b742be868f91a8c5344a69ae77a", kill_on_drop: false }`
[INFO] [stdout] 573bb1aefdf047278e8e56e7d1135d56b1e12b742be868f91a8c5344a69ae77a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 77d877db15e92c3a4dccae7f51c6aba662e2f4bc6ca61373e2267eb690df6edd
[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" "77d877db15e92c3a4dccae7f51c6aba662e2f4bc6ca61373e2267eb690df6edd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling nom v5.1.0
[INFO] [stderr]     Checking proc-macro2 v1.0.8
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]  Documenting t4rust-derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.90s
[INFO] running `Command { std: "docker" "inspect" "77d877db15e92c3a4dccae7f51c6aba662e2f4bc6ca61373e2267eb690df6edd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77d877db15e92c3a4dccae7f51c6aba662e2f4bc6ca61373e2267eb690df6edd", kill_on_drop: false }`
[INFO] [stdout] 77d877db15e92c3a4dccae7f51c6aba662e2f4bc6ca61373e2267eb690df6edd