[INFO] updating cached repository https://github.com/LeakyBucket/opencensus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9eaa184c3b11043da77d027fa643fb7b4fdb809e
[INFO] documenting LeakyBucket/opencensus against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeakyBucket%2Fopencensus" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LeakyBucket/opencensus 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 git repo https://github.com/LeakyBucket/opencensus
[INFO] finished tweaking git repo https://github.com/LeakyBucket/opencensus
[INFO] tweaked toml for git repo https://github.com/LeakyBucket/opencensus written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/LeakyBucket/opencensus already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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" "+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] b1c11d5b5b029e11643c84421fa6f9eab0ed61ac5b883b562a89ff14270aff9f
[INFO] running `Command { std: "docker" "start" "-a" "b1c11d5b5b029e11643c84421fa6f9eab0ed61ac5b883b562a89ff14270aff9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1c11d5b5b029e11643c84421fa6f9eab0ed61ac5b883b562a89ff14270aff9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c11d5b5b029e11643c84421fa6f9eab0ed61ac5b883b562a89ff14270aff9f", kill_on_drop: false }`
[INFO] [stdout] b1c11d5b5b029e11643c84421fa6f9eab0ed61ac5b883b562a89ff14270aff9f
[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" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c359b059f71b93668f7c1834e9afa049dafc046f2f9db61ef83953ec1c4245f9
[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" "c359b059f71b93668f7c1834e9afa049dafc046f2f9db61ef83953ec1c4245f9", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.0
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]  Documenting opencensus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0446]: private type `trace::TraceId` in public interface
[INFO] [stdout]    --> src/trace/mod.rs:9:5
[INFO] [stdout]     |
[INFO] [stdout] 9   |     pub trace_id: TraceId,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^ can't leak private type
[INFO] [stdout] ...
[INFO] [stdout] 120 | struct TraceId(Uuid); 
[INFO] [stdout]     | - `trace::TraceId` declared as private
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0446]: private type `trace::TraceOptions` in public interface
[INFO] [stdout]    --> src/trace/mod.rs:12:5
[INFO] [stdout]     |
[INFO] [stdout] 12  |     pub options: Option<TraceOptions>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private type
[INFO] [stdout] ...
[INFO] [stdout] 107 | struct TraceOptions(FixedBitSet);
[INFO] [stdout]     | - `trace::TraceOptions` declared as private
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0446]: private type `trace::TraceState` in public interface
[INFO] [stdout]    --> src/trace/mod.rs:13:5
[INFO] [stdout]     |
[INFO] [stdout] 13  |     pub state: Option<TraceState>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private type
[INFO] [stdout] ...
[INFO] [stdout] 123 | struct TraceState {
[INFO] [stdout]     | - `trace::TraceState` declared as private
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0446`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `opencensus`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name opencensus src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern fixedbitset=/opt/rustwide/target/debug/deps/libfixedbitset-445b0cddc09a2ccc.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-bbe9d2b8090fb6af.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-ceb9d29f5ace84d4.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "c359b059f71b93668f7c1834e9afa049dafc046f2f9db61ef83953ec1c4245f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c359b059f71b93668f7c1834e9afa049dafc046f2f9db61ef83953ec1c4245f9", kill_on_drop: false }`
[INFO] [stdout] c359b059f71b93668f7c1834e9afa049dafc046f2f9db61ef83953ec1c4245f9