[INFO] fetching crate tunnelto_lib 0.1.19...
[INFO] documenting tunnelto_lib-0.1.19 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate tunnelto_lib 0.1.19 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate tunnelto_lib 0.1.19 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 tunnelto_lib 0.1.19
[INFO] finished tweaking crates.io crate tunnelto_lib 0.1.19
[INFO] tweaked toml for crates.io crate tunnelto_lib 0.1.19 written to /workspace/builds/worker-16/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] 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-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 2979f73230d8b2e7cf02ee6b5a4cbdc5d25f6b96b6b163f6fbbbba4ee1c9721b
[INFO] running `Command { std: "docker" "start" "-a" "2979f73230d8b2e7cf02ee6b5a4cbdc5d25f6b96b6b163f6fbbbba4ee1c9721b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2979f73230d8b2e7cf02ee6b5a4cbdc5d25f6b96b6b163f6fbbbba4ee1c9721b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2979f73230d8b2e7cf02ee6b5a4cbdc5d25f6b96b6b163f6fbbbba4ee1c9721b", kill_on_drop: false }`
[INFO] [stdout] 2979f73230d8b2e7cf02ee6b5a4cbdc5d25f6b96b6b163f6fbbbba4ee1c9721b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 23a88c9bb6271f431b4e6f543677acc2db2d6ada1f5e533b60c15ebc6af55231
[INFO] running `Command { std: "docker" "start" "-a" "23a88c9bb6271f431b4e6f543677acc2db2d6ada1f5e533b60c15ebc6af55231", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]  Documenting tunnelto_lib v0.1.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.40s
[INFO] running `Command { std: "docker" "inspect" "23a88c9bb6271f431b4e6f543677acc2db2d6ada1f5e533b60c15ebc6af55231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a88c9bb6271f431b4e6f543677acc2db2d6ada1f5e533b60c15ebc6af55231", kill_on_drop: false }`
[INFO] [stdout] 23a88c9bb6271f431b4e6f543677acc2db2d6ada1f5e533b60c15ebc6af55231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 385643a0c74471ece29a96aab25bd2ac66bbca356f95f54a68c9be31c79dfa6d
[INFO] running `Command { std: "docker" "start" "-a" "385643a0c74471ece29a96aab25bd2ac66bbca356f95f54a68c9be31c79dfa6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]  Documenting tunnelto_lib v0.1.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.08s
[INFO] running `Command { std: "docker" "inspect" "385643a0c74471ece29a96aab25bd2ac66bbca356f95f54a68c9be31c79dfa6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "385643a0c74471ece29a96aab25bd2ac66bbca356f95f54a68c9be31c79dfa6d", kill_on_drop: false }`
[INFO] [stdout] 385643a0c74471ece29a96aab25bd2ac66bbca356f95f54a68c9be31c79dfa6d