[INFO] fetching crate tracing-subscriber 0.2.13...
[INFO] documenting tracing-subscriber-0.2.13 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate tracing-subscriber 0.2.13 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tracing-subscriber 0.2.13 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-subscriber 0.2.13
[INFO] finished tweaking crates.io crate tracing-subscriber 0.2.13
[INFO] tweaked toml for crates.io crate tracing-subscriber 0.2.13 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8060fc389f5a06bbb4071b4f7f84dec8a2247960416bf86790a079d2346c6266
[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" "8060fc389f5a06bbb4071b4f7f84dec8a2247960416bf86790a079d2346c6266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8060fc389f5a06bbb4071b4f7f84dec8a2247960416bf86790a079d2346c6266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8060fc389f5a06bbb4071b4f7f84dec8a2247960416bf86790a079d2346c6266", kill_on_drop: false }`
[INFO] [stdout] 8060fc389f5a06bbb4071b4f7f84dec8a2247960416bf86790a079d2346c6266
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "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] f67ec713fcb0fb3e56811b6c0a2fa0d5c7e879463c4e7a137a3816ac9d09c1d6
[INFO] running `Command { std: "docker" "start" "-a" "f67ec713fcb0fb3e56811b6c0a2fa0d5c7e879463c4e7a137a3816ac9d09c1d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]  Documenting tracing-subscriber v0.2.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Data`
[INFO] [stdout]    --> src/registry/extensions.rs:109:35
[INFO] [stdout]     |
[INFO] [stdout] 109 | /// [ExtensionsInner] is used by [Data] to store and
[INFO] [stdout]     |                                   ^^^^ the module `extensions` contains no item named `Data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(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 `Layer`
[INFO] [stdout]    --> src/registry/extensions.rs:110:34
[INFO] [stdout]     |
[INFO] [stdout] 110 | /// span-specific data. A given [Layer] can read and write
[INFO] [stdout]     |                                  ^^^^^ the module `extensions` contains no item named `Layer`
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/fmt/format/json.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |   /// ```ignore,json
[INFO] [stdout]    |  _____^
[INFO] [stdout] 31 | | /// {
[INFO] [stdout] 32 | | ///     "timestamp":"Feb 20 11:28:15.096",
[INFO] [stdout] 33 | | ///     "level":"INFO",
[INFO] [stdout] ...  |
[INFO] [stdout] 38 | | /// }
[INFO] [stdout] 39 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unterminated double quote string
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.46s
[INFO] running `Command { std: "docker" "inspect" "f67ec713fcb0fb3e56811b6c0a2fa0d5c7e879463c4e7a137a3816ac9d09c1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f67ec713fcb0fb3e56811b6c0a2fa0d5c7e879463c4e7a137a3816ac9d09c1d6", kill_on_drop: false }`
[INFO] [stdout] f67ec713fcb0fb3e56811b6c0a2fa0d5c7e879463c4e7a137a3816ac9d09c1d6
