[INFO] fetching crate proc-macro2 1.0.39...
[INFO] documenting proc-macro2-1.0.39 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate proc-macro2 1.0.39 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate proc-macro2 1.0.39 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proc-macro2 1.0.39
[INFO] finished tweaking crates.io crate proc-macro2 1.0.39
[INFO] tweaked toml for crates.io crate proc-macro2 1.0.39 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] e13f0a86d1b4a33b5ed96d8dc20c12cdef91b0863555095ee02e200c1f0a0806
[INFO] running `Command { std: "docker" "start" "-a" "e13f0a86d1b4a33b5ed96d8dc20c12cdef91b0863555095ee02e200c1f0a0806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e13f0a86d1b4a33b5ed96d8dc20c12cdef91b0863555095ee02e200c1f0a0806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e13f0a86d1b4a33b5ed96d8dc20c12cdef91b0863555095ee02e200c1f0a0806", kill_on_drop: false }`
[INFO] [stdout] e13f0a86d1b4a33b5ed96d8dc20c12cdef91b0863555095ee02e200c1f0a0806
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c422ae4809c8f104f3642f5dbaf2f19dfe319f7f3b9839513aaffb2a4ef0a64
[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" "3c422ae4809c8f104f3642f5dbaf2f19dfe319f7f3b9839513aaffb2a4ef0a64", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.39 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]  Documenting proc-macro2 v1.0.39 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "3c422ae4809c8f104f3642f5dbaf2f19dfe319f7f3b9839513aaffb2a4ef0a64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c422ae4809c8f104f3642f5dbaf2f19dfe319f7f3b9839513aaffb2a4ef0a64", kill_on_drop: false }`
[INFO] [stdout] 3c422ae4809c8f104f3642f5dbaf2f19dfe319f7f3b9839513aaffb2a4ef0a64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustflags=[\"--cfg\", \"procmacro2_semver_exempt\"]" "--frozen" "--message-format=json" "--" "--cfg" "procmacro2_semver_exempt" "--cfg" "doc_cfg" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 33fde1924b197d3ba41039a05d671ca9dd24cc97d0d34449828e1a1662a432f6
[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" "33fde1924b197d3ba41039a05d671ca9dd24cc97d0d34449828e1a1662a432f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]  Documenting proc-macro2 v1.0.39 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.43s
[INFO] running `Command { std: "docker" "inspect" "33fde1924b197d3ba41039a05d671ca9dd24cc97d0d34449828e1a1662a432f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33fde1924b197d3ba41039a05d671ca9dd24cc97d0d34449828e1a1662a432f6", kill_on_drop: false }`
[INFO] [stdout] 33fde1924b197d3ba41039a05d671ca9dd24cc97d0d34449828e1a1662a432f6