[INFO] fetching crate build-fs-tree 0.3.0...
[INFO] documenting build-fs-tree-0.3.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate build-fs-tree 0.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate build-fs-tree 0.3.0 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 build-fs-tree 0.3.0
[INFO] finished tweaking crates.io crate build-fs-tree 0.3.0
[INFO] tweaked toml for crates.io crate build-fs-tree 0.3.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate build-fs-tree 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded text-block-macros v0.1.1
[INFO] [stderr]   Downloaded pipe-trait v0.2.1
[INFO] [stderr]   Downloaded pipe-trait v0.3.2
[INFO] [stderr]   Downloaded structopt-utilities v0.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7d7ebf57d1239c5fe11cca0ddd51372dd54b62f3757cdc7220db4839392cc334
[INFO] running `Command { std: "docker" "start" "-a" "7d7ebf57d1239c5fe11cca0ddd51372dd54b62f3757cdc7220db4839392cc334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d7ebf57d1239c5fe11cca0ddd51372dd54b62f3757cdc7220db4839392cc334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d7ebf57d1239c5fe11cca0ddd51372dd54b62f3757cdc7220db4839392cc334", kill_on_drop: false }`
[INFO] [stdout] 7d7ebf57d1239c5fe11cca0ddd51372dd54b62f3757cdc7220db4839392cc334
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 41adae3e3b1029949934dc08fbca15afcd0e7f12f6003a38f02e9a8aee1d4c32
[INFO] running `Command { std: "docker" "start" "-a" "41adae3e3b1029949934dc08fbca15afcd0e7f12f6003a38f02e9a8aee1d4c32", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking text-block-macros v0.1.1
[INFO] [stderr]     Checking pipe-trait v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling derive_more v0.99.14
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]  Documenting build-fs-tree v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.19s
[INFO] running `Command { std: "docker" "inspect" "41adae3e3b1029949934dc08fbca15afcd0e7f12f6003a38f02e9a8aee1d4c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41adae3e3b1029949934dc08fbca15afcd0e7f12f6003a38f02e9a8aee1d4c32", kill_on_drop: false }`
[INFO] [stdout] 41adae3e3b1029949934dc08fbca15afcd0e7f12f6003a38f02e9a8aee1d4c32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 6fd5c06012bb5dbbcb2ded220a097aa09fbde8f73a3e56b226f36c8e890b2dcb
[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" "6fd5c06012bb5dbbcb2ded220a097aa09fbde8f73a3e56b226f36c8e890b2dcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking pipe-trait v0.3.2
[INFO] [stderr]     Checking text-block-macros v0.1.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling derive_more v0.99.14
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]  Documenting build-fs-tree v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.67s
[INFO] running `Command { std: "docker" "inspect" "6fd5c06012bb5dbbcb2ded220a097aa09fbde8f73a3e56b226f36c8e890b2dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fd5c06012bb5dbbcb2ded220a097aa09fbde8f73a3e56b226f36c8e890b2dcb", kill_on_drop: false }`
[INFO] [stdout] 6fd5c06012bb5dbbcb2ded220a097aa09fbde8f73a3e56b226f36c8e890b2dcb