[INFO] fetching crate dent 0.4.1...
[INFO] documenting dent-0.4.1 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate dent 0.4.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate dent 0.4.1 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dent 0.4.1
[INFO] finished tweaking crates.io crate dent 0.4.1
[INFO] tweaked toml for crates.io crate dent 0.4.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", 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] 9563e3ddabed25da784d4208bd4d28140741fb3335c56fa3e950d0f8a3189dbf
[INFO] running `Command { std: "docker" "start" "-a" "9563e3ddabed25da784d4208bd4d28140741fb3335c56fa3e950d0f8a3189dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9563e3ddabed25da784d4208bd4d28140741fb3335c56fa3e950d0f8a3189dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9563e3ddabed25da784d4208bd4d28140741fb3335c56fa3e950d0f8a3189dbf", kill_on_drop: false }`
[INFO] [stdout] 9563e3ddabed25da784d4208bd4d28140741fb3335c56fa3e950d0f8a3189dbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29ed53d983e5697b6a60e5f4b6f75b04966bef0af708168350d9a8f3af50b628
[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" "29ed53d983e5697b6a60e5f4b6f75b04966bef0af708168350d9a8f3af50b628", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking stamp v0.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]  Documenting dent v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[2]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/num.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | /// algorithm [2] to evaluate its continued fraction representation [3].
[INFO] [stdout]    |                ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[3]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/num.rs:29:70
[INFO] [stdout]    |
[INFO] [stdout] 29 | /// algorithm [2] to evaluate its continued fraction representation [3].
[INFO] [stdout]    |                                                                      ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[4]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/num.rs:30:63
[INFO] [stdout]    |
[INFO] [stdout] 30 | /// Depending on the arguments, we use the symmetry relation [4] to guarantee a
[INFO] [stdout]    |                                                               ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[2]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/num.rs:34:6
[INFO] [stdout]    |
[INFO] [stdout] 34 | /// [2]: "Numerical Recipes in C", 2nd Ed., p. 171
[INFO] [stdout]    |      ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[3]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/num.rs:35:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | /// [3]: http://dlmf.nist.gov/8.17#E22
[INFO] [stdout]    |      ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[4]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/num.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 36 | /// [4]: http://dlmf.nist.gov/8.17#E4
[INFO] [stdout]    |      ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[1]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/t_test.rs:59:28
[INFO] [stdout]    |
[INFO] [stdout] 59 | /// See equation 6.4.9 in [1].
[INFO] [stdout]    |                            ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[1]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/t_test.rs:61:6
[INFO] [stdout]    |
[INFO] [stdout] 61 | /// [1]: "Numerical Recipes in C", 2nd Ed., p. 228
[INFO] [stdout]    |      ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.28s
[INFO] running `Command { std: "docker" "inspect" "29ed53d983e5697b6a60e5f4b6f75b04966bef0af708168350d9a8f3af50b628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29ed53d983e5697b6a60e5f4b6f75b04966bef0af708168350d9a8f3af50b628", kill_on_drop: false }`
[INFO] [stdout] 29ed53d983e5697b6a60e5f4b6f75b04966bef0af708168350d9a8f3af50b628