[INFO] cloning repository https://github.com/dunnock/poll_oneoff_tests
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dunnock/poll_oneoff_tests" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdunnock%2Fpoll_oneoff_tests", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdunnock%2Fpoll_oneoff_tests'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 412f7b2fe903dade36b97c9863d3339939bd4bcb
[INFO] testing dunnock/poll_oneoff_tests against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdunnock%2Fpoll_oneoff_tests" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dunnock/poll_oneoff_tests on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/dunnock/poll_oneoff_tests
[INFO] finished tweaking git repo https://github.com/dunnock/poll_oneoff_tests
[INFO] tweaked toml for git repo https://github.com/dunnock/poll_oneoff_tests written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dunnock/poll_oneoff_tests already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] cd7d6a443ef618a1edf814a379842089908f21376fbc849e2352771fbd46dc6d
[INFO] running `Command { std: "docker" "start" "-a" "cd7d6a443ef618a1edf814a379842089908f21376fbc849e2352771fbd46dc6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd7d6a443ef618a1edf814a379842089908f21376fbc849e2352771fbd46dc6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd7d6a443ef618a1edf814a379842089908f21376fbc849e2352771fbd46dc6d", kill_on_drop: false }`
[INFO] [stdout] cd7d6a443ef618a1edf814a379842089908f21376fbc849e2352771fbd46dc6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 188f1e1d3828d082bd8233ffcec5d749219a89903f6b8975200c9d824ad40355
[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" "188f1e1d3828d082bd8233ffcec5d749219a89903f6b8975200c9d824ad40355", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasi v0.7.0
[INFO] [stderr]    Compiling poll_oneoff_tests v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `wasi` in `os`
[INFO] [stdout]  --> src/main.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::os::wasi::io::AsRawFd;
[INFO] [stdout]   |              ^^^^ could not find `wasi` in `os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(wasi_ext)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `wasi_ext`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(wasi_ext)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_raw_fd` found for struct `File` in the current scope
[INFO] [stdout]   --> src/main.rs:79:43
[INFO] [stdout]    |
[INFO] [stdout] 79 |     println!("File descriptor: {}", input.as_raw_fd());
[INFO] [stdout]    |                                           ^^^^^^^^^ method not found in `File`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 2  | use std::os::unix::io::AsRawFd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_raw_fd` found for struct `File` in the current scope
[INFO] [stdout]   --> src/main.rs:82:19
[INFO] [stdout]    |
[INFO] [stdout] 82 |         fd: input.as_raw_fd()
[INFO] [stdout]    |                   ^^^^^^^^^ method not found in `File`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 2  | use std::os::unix::io::AsRawFd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0554, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `poll_oneoff_tests` due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "188f1e1d3828d082bd8233ffcec5d749219a89903f6b8975200c9d824ad40355", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188f1e1d3828d082bd8233ffcec5d749219a89903f6b8975200c9d824ad40355", kill_on_drop: false }`
[INFO] [stdout] 188f1e1d3828d082bd8233ffcec5d749219a89903f6b8975200c9d824ad40355