[INFO] fetching crate sentinel 0.2.3...
[INFO] documenting sentinel-0.2.3 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate sentinel 0.2.3 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate sentinel 0.2.3 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 sentinel 0.2.3
[INFO] finished tweaking crates.io crate sentinel 0.2.3
[INFO] tweaked toml for crates.io crate sentinel 0.2.3 written to /workspace/builds/worker-13/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-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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98f2b87233d8d9fa7d698b66e0d33625b64c25b9690d2b5cb94e07de4434820a
[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" "98f2b87233d8d9fa7d698b66e0d33625b64c25b9690d2b5cb94e07de4434820a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98f2b87233d8d9fa7d698b66e0d33625b64c25b9690d2b5cb94e07de4434820a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98f2b87233d8d9fa7d698b66e0d33625b64c25b9690d2b5cb94e07de4434820a", kill_on_drop: false }`
[INFO] [stdout] 98f2b87233d8d9fa7d698b66e0d33625b64c25b9690d2b5cb94e07de4434820a
[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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7045e56b5ae55e05ba16445b062999de8649f8b5a06f8e699f76f30ea89ac76
[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" "b7045e56b5ae55e05ba16445b062999de8649f8b5a06f8e699f76f30ea89ac76", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]  Documenting sentinel v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `!Sized`
[INFO] [stdout]   --> src/lib.rs:74:65
[INFO] [stdout]    |
[INFO] [stdout] 74 | //! [`SSlice<T, S>`] can be created on the stack by making it [`!Sized`]. This feature also enables
[INFO] [stdout]    |                                                                 ^^^^^^ no item named `!Sized` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `CStr`
[INFO] [stdout]   --> src/display.rs:18:56
[INFO] [stdout]    |
[INFO] [stdout] 18 | /// Implements [`fmt::Display`] [`fmt::Debug`] for a [`CStr`].
[INFO] [stdout]    |                                                        ^^^^ no item named `CStr` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `Command { std: "docker" "inspect" "b7045e56b5ae55e05ba16445b062999de8649f8b5a06f8e699f76f30ea89ac76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7045e56b5ae55e05ba16445b062999de8649f8b5a06f8e699f76f30ea89ac76", kill_on_drop: false }`
[INFO] [stdout] b7045e56b5ae55e05ba16445b062999de8649f8b5a06f8e699f76f30ea89ac76
[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" "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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 3811963091c4c39f791771cd78f4c6ed7a4a6187dcf398a1ccded989d77c9ac1
[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" "3811963091c4c39f791771cd78f4c6ed7a4a6187dcf398a1ccded989d77c9ac1", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]  Documenting sentinel v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `!Sized`
[INFO] [stdout]   --> src/lib.rs:74:65
[INFO] [stdout]    |
[INFO] [stdout] 74 | //! [`SSlice<T, S>`] can be created on the stack by making it [`!Sized`]. This feature also enables
[INFO] [stdout]    |                                                                 ^^^^^^ no item named `!Sized` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `CStr`
[INFO] [stdout]   --> src/display.rs:18:56
[INFO] [stdout]    |
[INFO] [stdout] 18 | /// Implements [`fmt::Display`] [`fmt::Debug`] for a [`CStr`].
[INFO] [stdout]    |                                                        ^^^^ no item named `CStr` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `Command { std: "docker" "inspect" "3811963091c4c39f791771cd78f4c6ed7a4a6187dcf398a1ccded989d77c9ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3811963091c4c39f791771cd78f4c6ed7a4a6187dcf398a1ccded989d77c9ac1", kill_on_drop: false }`
[INFO] [stdout] 3811963091c4c39f791771cd78f4c6ed7a4a6187dcf398a1ccded989d77c9ac1