[INFO] fetching crate serde_default 0.1.0...
[INFO] documenting serde_default-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate serde_default 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate serde_default 0.1.0 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 serde_default 0.1.0
[INFO] finished tweaking crates.io crate serde_default 0.1.0
[INFO] tweaked toml for crates.io crate serde_default 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate serde_default 0.1.0 already has a lockfile, it will not be regenerated
[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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] b0a0c50aa7947cc2fb3965ba7aa63317276d0893edcaccd2b4f4cf5b7ff3bf7c
[INFO] running `Command { std: "docker" "start" "-a" "b0a0c50aa7947cc2fb3965ba7aa63317276d0893edcaccd2b4f4cf5b7ff3bf7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0a0c50aa7947cc2fb3965ba7aa63317276d0893edcaccd2b4f4cf5b7ff3bf7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a0c50aa7947cc2fb3965ba7aa63317276d0893edcaccd2b4f4cf5b7ff3bf7c", kill_on_drop: false }`
[INFO] [stdout] b0a0c50aa7947cc2fb3965ba7aa63317276d0893edcaccd2b4f4cf5b7ff3bf7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 24fdfece0a507bee7ce09c1c0b77690a7b783316cafbeafc3e73d9a91470fd1c
[INFO] running `Command { std: "docker" "start" "-a" "24fdfece0a507bee7ce09c1c0b77690a7b783316cafbeafc3e73d9a91470fd1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking darling_core v0.13.1
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]     Checking darling v0.13.1
[INFO] [stderr]  Documenting serde_default v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.19s
[INFO] running `Command { std: "docker" "inspect" "24fdfece0a507bee7ce09c1c0b77690a7b783316cafbeafc3e73d9a91470fd1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24fdfece0a507bee7ce09c1c0b77690a7b783316cafbeafc3e73d9a91470fd1c", kill_on_drop: false }`
[INFO] [stdout] 24fdfece0a507bee7ce09c1c0b77690a7b783316cafbeafc3e73d9a91470fd1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] 9ecfff86d238e572b418f416038c8a43ba5d028e55e6c43aa5c4e7b5bdf4fda8
[INFO] running `Command { std: "docker" "start" "-a" "9ecfff86d238e572b418f416038c8a43ba5d028e55e6c43aa5c4e7b5bdf4fda8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking quote v1.0.14
[INFO] [stderr]     Checking darling_core v0.13.1
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]     Checking darling v0.13.1
[INFO] [stderr]  Documenting serde_default v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.27s
[INFO] running `Command { std: "docker" "inspect" "9ecfff86d238e572b418f416038c8a43ba5d028e55e6c43aa5c4e7b5bdf4fda8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ecfff86d238e572b418f416038c8a43ba5d028e55e6c43aa5c4e7b5bdf4fda8", kill_on_drop: false }`
[INFO] [stdout] 9ecfff86d238e572b418f416038c8a43ba5d028e55e6c43aa5c4e7b5bdf4fda8