[INFO] fetching crate singleflight 0.2.0...
[INFO] documenting singleflight-0.2.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate singleflight 0.2.0 into /workspace/builds/worker-32/source
[INFO] validating manifest of crates.io crate singleflight 0.2.0 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 singleflight 0.2.0
[INFO] finished tweaking crates.io crate singleflight 0.2.0
[INFO] tweaked toml for crates.io crate singleflight 0.2.0 written to /workspace/builds/worker-32/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-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] ea23cff97be32cf382188cf67953af215ccf0f273d2176031e3c6cd2699d03c5
[INFO] running `Command { std: "docker" "start" "-a" "ea23cff97be32cf382188cf67953af215ccf0f273d2176031e3c6cd2699d03c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea23cff97be32cf382188cf67953af215ccf0f273d2176031e3c6cd2699d03c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea23cff97be32cf382188cf67953af215ccf0f273d2176031e3c6cd2699d03c5", kill_on_drop: false }`
[INFO] [stdout] ea23cff97be32cf382188cf67953af215ccf0f273d2176031e3c6cd2699d03c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] aaf6dec60d61cb667bc946e14be373f816dfd68af71fad98928109b1af87ee94
[INFO] running `Command { std: "docker" "start" "-a" "aaf6dec60d61cb667bc946e14be373f816dfd68af71fad98928109b1af87ee94", kill_on_drop: false }`
[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 parking_lot_core v0.9.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]  Documenting singleflight v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `Command { std: "docker" "inspect" "aaf6dec60d61cb667bc946e14be373f816dfd68af71fad98928109b1af87ee94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaf6dec60d61cb667bc946e14be373f816dfd68af71fad98928109b1af87ee94", kill_on_drop: false }`
[INFO] [stdout] aaf6dec60d61cb667bc946e14be373f816dfd68af71fad98928109b1af87ee94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 8f5a555c46fdb2200d0897afe5686e44d89eae4840d32c468eedbd74f798a384
[INFO] running `Command { std: "docker" "start" "-a" "8f5a555c46fdb2200d0897afe5686e44d89eae4840d32c468eedbd74f798a384", kill_on_drop: false }`
[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 parking_lot_core v0.9.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[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 parking_lot v0.12.0
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]  Documenting singleflight v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `Command { std: "docker" "inspect" "8f5a555c46fdb2200d0897afe5686e44d89eae4840d32c468eedbd74f798a384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5a555c46fdb2200d0897afe5686e44d89eae4840d32c468eedbd74f798a384", kill_on_drop: false }`
[INFO] [stdout] 8f5a555c46fdb2200d0897afe5686e44d89eae4840d32c468eedbd74f798a384