[INFO] fetching crate cbindgen 0.14.3...
[INFO] documenting cbindgen-0.14.3 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate cbindgen 0.14.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cbindgen 0.14.3 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cbindgen 0.14.3
[INFO] finished tweaking crates.io crate cbindgen 0.14.3
[INFO] tweaked toml for crates.io crate cbindgen 0.14.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate cbindgen 0.14.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 482a10fabf3c8c69e4c5af973f9afb5d61419d8c569205eeecb04eb4009cfc12
[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" "482a10fabf3c8c69e4c5af973f9afb5d61419d8c569205eeecb04eb4009cfc12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "482a10fabf3c8c69e4c5af973f9afb5d61419d8c569205eeecb04eb4009cfc12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "482a10fabf3c8c69e4c5af973f9afb5d61419d8c569205eeecb04eb4009cfc12", kill_on_drop: false }`
[INFO] [stdout] 482a10fabf3c8c69e4c5af973f9afb5d61419d8c569205eeecb04eb4009cfc12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9747ccba403729e27ae57d1d8ee722185220b6d01f91f2d478dfd5004d6e56e3
[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" "9747ccba403729e27ae57d1d8ee722185220b6d01f91f2d478dfd5004d6e56e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling cbindgen v0.14.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]  Documenting cbindgen v0.14.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[must_use]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/bindgen/config.rs:310:50
[INFO] [stdout]     |
[INFO] [stdout] 310 |     /// The way to annotation this function as #[must_use]
[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: `[must_use]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/bindgen/config.rs:378:46
[INFO] [stdout]     |
[INFO] [stdout] 378 |     /// The way to annotate this struct as #[must_use].
[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: `[must_use]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/bindgen/config.rs:451:46
[INFO] [stdout]     |
[INFO] [stdout] 451 |     /// The way to annotation this enum as #[must_use].
[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: `[must_use]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/bindgen/config.rs:310:50
[INFO] [stdout]     |
[INFO] [stdout] 310 |     /// The way to annotation this function as #[must_use]
[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 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.39s
[INFO] running `Command { std: "docker" "inspect" "9747ccba403729e27ae57d1d8ee722185220b6d01f91f2d478dfd5004d6e56e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9747ccba403729e27ae57d1d8ee722185220b6d01f91f2d478dfd5004d6e56e3", kill_on_drop: false }`
[INFO] [stdout] 9747ccba403729e27ae57d1d8ee722185220b6d01f91f2d478dfd5004d6e56e3