[INFO] fetching crate function_group 0.2.4...
[INFO] documenting function_group-0.2.4 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate function_group 0.2.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate function_group 0.2.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate function_group 0.2.4
[INFO] finished tweaking crates.io crate function_group 0.2.4
[INFO] tweaked toml for crates.io crate function_group 0.2.4 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] 7f159883928a1608dd2bb429ff02f3649caaf3c2a2e5643a5f10841b3035d343
[INFO] running `Command { std: "docker" "start" "-a" "7f159883928a1608dd2bb429ff02f3649caaf3c2a2e5643a5f10841b3035d343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f159883928a1608dd2bb429ff02f3649caaf3c2a2e5643a5f10841b3035d343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f159883928a1608dd2bb429ff02f3649caaf3c2a2e5643a5f10841b3035d343", kill_on_drop: false }`
[INFO] [stdout] 7f159883928a1608dd2bb429ff02f3649caaf3c2a2e5643a5f10841b3035d343
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e197d72f61e0f4d8e5a48655741e475676e282a46eaf00041039bf5ea4b77e42
[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" "e197d72f61e0f4d8e5a48655741e475676e282a46eaf00041039bf5ea4b77e42", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]  Documenting function_group v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.44s
[INFO] running `Command { std: "docker" "inspect" "e197d72f61e0f4d8e5a48655741e475676e282a46eaf00041039bf5ea4b77e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e197d72f61e0f4d8e5a48655741e475676e282a46eaf00041039bf5ea4b77e42", kill_on_drop: false }`
[INFO] [stdout] e197d72f61e0f4d8e5a48655741e475676e282a46eaf00041039bf5ea4b77e42
