[INFO] fetching crate nstack 0.15.0-rkyv.0...
[INFO] documenting nstack-0.15.0-rkyv.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate nstack 0.15.0-rkyv.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate nstack 0.15.0-rkyv.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] removed /workspace/builds/worker-2/source/rust-toolchain
[INFO] started tweaking crates.io crate nstack 0.15.0-rkyv.0
[INFO] finished tweaking crates.io crate nstack 0.15.0-rkyv.0
[INFO] tweaked toml for crates.io crate nstack 0.15.0-rkyv.0 written to /workspace/builds/worker-2/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 1631ca82e8c6e462af58f6c4731ac3ce51b939ef96d7bd9a88d14538990cd0d5
[INFO] running `Command { std: "docker" "start" "-a" "1631ca82e8c6e462af58f6c4731ac3ce51b939ef96d7bd9a88d14538990cd0d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1631ca82e8c6e462af58f6c4731ac3ce51b939ef96d7bd9a88d14538990cd0d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1631ca82e8c6e462af58f6c4731ac3ce51b939ef96d7bd9a88d14538990cd0d5", kill_on_drop: false }`
[INFO] [stdout] 1631ca82e8c6e462af58f6c4731ac3ce51b939ef96d7bd9a88d14538990cd0d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 355772287ca861db09cb8db30199500bd249ae63477aa231482aa9c65c6b0edf
[INFO] running `Command { std: "docker" "start" "-a" "355772287ca861db09cb8db30199500bd249ae63477aa231482aa9c65c6b0edf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling bytecheck v0.6.8
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling rend v0.3.6
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling rkyv v0.7.38
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.8
[INFO] [stderr]    Compiling rkyv_derive v0.7.38
[INFO] [stderr]     Checking ptr_meta v0.1.4
[INFO] [stderr]     Checking microkelvin v0.16.0-rkyv.0
[INFO] [stderr]  Documenting nstack v0.15.0-rkyv.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.47s
[INFO] running `Command { std: "docker" "inspect" "355772287ca861db09cb8db30199500bd249ae63477aa231482aa9c65c6b0edf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "355772287ca861db09cb8db30199500bd249ae63477aa231482aa9c65c6b0edf", kill_on_drop: false }`
[INFO] [stdout] 355772287ca861db09cb8db30199500bd249ae63477aa231482aa9c65c6b0edf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] d898d9dbc384cf64176902f2c80d9b87d1e06ae1df8deb26634ad756373a301e
[INFO] running `Command { std: "docker" "start" "-a" "d898d9dbc384cf64176902f2c80d9b87d1e06ae1df8deb26634ad756373a301e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling bytecheck v0.6.8
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling rend v0.3.6
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling rkyv v0.7.38
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.8
[INFO] [stderr]    Compiling rkyv_derive v0.7.38
[INFO] [stderr]     Checking ptr_meta v0.1.4
[INFO] [stderr]     Checking microkelvin v0.16.0-rkyv.0
[INFO] [stderr]  Documenting nstack v0.15.0-rkyv.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.92s
[INFO] running `Command { std: "docker" "inspect" "d898d9dbc384cf64176902f2c80d9b87d1e06ae1df8deb26634ad756373a301e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d898d9dbc384cf64176902f2c80d9b87d1e06ae1df8deb26634ad756373a301e", kill_on_drop: false }`
[INFO] [stdout] d898d9dbc384cf64176902f2c80d9b87d1e06ae1df8deb26634ad756373a301e