[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] checking xiejianzheng/epoll-demo against beta for pr-78714
[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 beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", 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" "+beta" "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-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] ffcbfc3893d285fee3013a3c76c0211fc9b89c462bbbf0fdd1e3cfcd1fb3a1b3
[INFO] running `Command { std: "docker" "start" "-a" "ffcbfc3893d285fee3013a3c76c0211fc9b89c462bbbf0fdd1e3cfcd1fb3a1b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffcbfc3893d285fee3013a3c76c0211fc9b89c462bbbf0fdd1e3cfcd1fb3a1b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffcbfc3893d285fee3013a3c76c0211fc9b89c462bbbf0fdd1e3cfcd1fb3a1b3", kill_on_drop: false }`
[INFO] [stdout] ffcbfc3893d285fee3013a3c76c0211fc9b89c462bbbf0fdd1e3cfcd1fb3a1b3
[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" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18778fa468c7ade7f10db1e11f6e25344008113265b8cb33f40f94c98389b60c
[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" "18778fa468c7ade7f10db1e11f6e25344008113265b8cb33f40f94c98389b60c", kill_on_drop: false }`
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking mio v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking env_logger v0.4.3
[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[E0433]: failed to resolve: could not find `Selector` in `sys`
[INFO] [stdout]    --> src/poll.rs:656:28
[INFO] [stdout]     |
[INFO] [stdout] 656 |             selector: sys::Selector::new()?,
[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: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[E0433]: failed to resolve: could not find `Events` in `sys`
[INFO] [stdout]     --> src/poll.rs:1392:25
[INFO] [stdout]      |
[INFO] [stdout] 1392 |             inner: sys::Events::with_capacity(capacity),
[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[E0433]: failed to resolve: could not find `Awakener` in `sys`
[INFO] [stdout]     --> src/poll.rs:2118:32
[INFO] [stdout]      |
[INFO] [stdout] 2118 |                 awakener: sys::Awakener::new()?,
[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: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] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/event_imp.rs:164:22
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl Evented for Box<Evented> {
[INFO] [stdout]     |                      ^^^^^^^ help: use `dyn`: `dyn Evented`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mio`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "18778fa468c7ade7f10db1e11f6e25344008113265b8cb33f40f94c98389b60c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18778fa468c7ade7f10db1e11f6e25344008113265b8cb33f40f94c98389b60c", kill_on_drop: false }`
[INFO] [stdout] 18778fa468c7ade7f10db1e11f6e25344008113265b8cb33f40f94c98389b60c