[INFO] cloning repository https://github.com/xiejianzheng/epoll-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiejianzheng/epoll-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiejianzheng%2Fepoll-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiejianzheng%2Fepoll-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5f7a31b947ebd071421d63b046352c68c4a76bd
[INFO] documenting xiejianzheng/epoll-demo against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiejianzheng%2Fepoll-demo" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiejianzheng/epoll-demo 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 git repo https://github.com/xiejianzheng/epoll-demo
[INFO] removed 1 missing tests
[INFO] finished tweaking git repo https://github.com/xiejianzheng/epoll-demo
[INFO] tweaked toml for git repo https://github.com/xiejianzheng/epoll-demo written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/xiejianzheng/epoll-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 89cd26eced3514f21630c5665cef43d04d13b9df427c77a5172336002fae9765
[INFO] running `Command { std: "docker" "start" "-a" "89cd26eced3514f21630c5665cef43d04d13b9df427c77a5172336002fae9765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89cd26eced3514f21630c5665cef43d04d13b9df427c77a5172336002fae9765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89cd26eced3514f21630c5665cef43d04d13b9df427c77a5172336002fae9765", kill_on_drop: false }`
[INFO] [stdout] 89cd26eced3514f21630c5665cef43d04d13b9df427c77a5172336002fae9765
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cc61a141957c04f02645aecc1c4c85ac23152705b19bb2eca212a3bb840ad8e2
[INFO] running `Command { std: "docker" "start" "-a" "cc61a141957c04f02645aecc1c4c85ac23152705b19bb2eca212a3bb840ad8e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]  Documenting mio v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `sys::EventedFd`
[INFO] [stdout]   --> src/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub use sys::EventedFd;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ no `EventedFd` in `sys`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Selector` in module `sys`
[INFO] [stdout]    --> src/poll.rs:330:20
[INFO] [stdout]     |
[INFO] [stdout] 330 |     selector: sys::Selector,
[INFO] [stdout]     |                    ^^^^^^^^ not found in `sys`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 1   | use sys::unix::Selector;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Awakener` in module `sys`
[INFO] [stdout]    --> src/poll.rs:486:20
[INFO] [stdout]     |
[INFO] [stdout] 486 |     awakener: sys::Awakener,
[INFO] [stdout]     |                    ^^^^^^^^ not found in `sys`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 1   | use sys::unix::Awakener;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Events` in module `sys`
[INFO] [stdout]     --> src/poll.rs:1301:17
[INFO] [stdout]      |
[INFO] [stdout] 1301 |     inner: sys::Events,
[INFO] [stdout]      |                 ^^^^^^ not found in `sys`
[INFO] [stdout]      |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]      |
[INFO] [stdout] 1    | use Events;
[INFO] [stdout]      |
[INFO] [stdout] 1    | use sys::unix::Events;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Selector` in module `sys`
[INFO] [stdout]     --> src/poll.rs:1543:39
[INFO] [stdout]      |
[INFO] [stdout] 1543 | pub fn selector(poll: &Poll) -> &sys::Selector {
[INFO] [stdout]      |                                       ^^^^^^^^ not found in `sys`
[INFO] [stdout]      |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]      |
[INFO] [stdout] 1    | use sys::unix::Selector;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Events` in module `sys`
[INFO] [stdout]     --> src/poll.rs:2129:35
[INFO] [stdout]      |
[INFO] [stdout] 2129 |     fn poll(&self, dst: &mut sys::Events) {
[INFO] [stdout]      |                                   ^^^^^^ not found in `sys`
[INFO] [stdout]      |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]      |
[INFO] [stdout] 1    | use Events;
[INFO] [stdout]      |
[INFO] [stdout] 1    | use sys::unix::Events;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `mio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name mio src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=0dce531b6cf7c251 -L dependency=/opt/rustwide/target/debug/deps --extern iovec=/opt/rustwide/target/debug/deps/libiovec-18f0543d8e8134ef.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-e113bfaee4743c46.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-cd8e1939f92bb22f.rmeta --extern net2=/opt/rustwide/target/debug/deps/libnet2-58f56a8086faf5e4.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-cd66f1f1a97e2a48.rmeta --cap-lints=warn --crate-version 0.7.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "cc61a141957c04f02645aecc1c4c85ac23152705b19bb2eca212a3bb840ad8e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc61a141957c04f02645aecc1c4c85ac23152705b19bb2eca212a3bb840ad8e2", kill_on_drop: false }`
[INFO] [stdout] cc61a141957c04f02645aecc1c4c85ac23152705b19bb2eca212a3bb840ad8e2