[INFO] fetching crate safe-proc-macro2 1.0.36...
[INFO] documenting safe-proc-macro2-1.0.36 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate safe-proc-macro2 1.0.36 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate safe-proc-macro2 1.0.36 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safe-proc-macro2 1.0.36
[INFO] finished tweaking crates.io crate safe-proc-macro2 1.0.36
[INFO] tweaked toml for crates.io crate safe-proc-macro2 1.0.36 written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8273e11c2b7244257d3815a5f478675700531e5947066149e709bbcd58a2f08b
[INFO] running `Command { std: "docker" "start" "-a" "8273e11c2b7244257d3815a5f478675700531e5947066149e709bbcd58a2f08b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8273e11c2b7244257d3815a5f478675700531e5947066149e709bbcd58a2f08b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8273e11c2b7244257d3815a5f478675700531e5947066149e709bbcd58a2f08b", kill_on_drop: false }`
[INFO] [stdout] 8273e11c2b7244257d3815a5f478675700531e5947066149e709bbcd58a2f08b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e79da3fe0e63fdba40e96fa2430b59821c6e89b634e5b12331e07174698ab58
[INFO] running `Command { std: "docker" "start" "-a" "1e79da3fe0e63fdba40e96fa2430b59821c6e89b634e5b12331e07174698ab58", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe-proc-macro2 v1.0.36 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]  Documenting safe-proc-macro2 v1.0.36 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "1e79da3fe0e63fdba40e96fa2430b59821c6e89b634e5b12331e07174698ab58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e79da3fe0e63fdba40e96fa2430b59821c6e89b634e5b12331e07174698ab58", kill_on_drop: false }`
[INFO] [stdout] 1e79da3fe0e63fdba40e96fa2430b59821c6e89b634e5b12331e07174698ab58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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" "+1.61.0" "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] e76dcc3b0770c6bc3c888c9a108484ff946085e1c98fe37706851ccc93cb73fc
[INFO] running `Command { std: "docker" "start" "-a" "e76dcc3b0770c6bc3c888c9a108484ff946085e1c98fe37706851ccc93cb73fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe-proc-macro2 v1.0.36 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]  Documenting safe-proc-macro2 v1.0.36 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "e76dcc3b0770c6bc3c888c9a108484ff946085e1c98fe37706851ccc93cb73fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e76dcc3b0770c6bc3c888c9a108484ff946085e1c98fe37706851ccc93cb73fc", kill_on_drop: false }`
[INFO] [stdout] e76dcc3b0770c6bc3c888c9a108484ff946085e1c98fe37706851ccc93cb73fc