[INFO] cloning repository https://github.com/ojisan-toybox/rust-epoll-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ojisan-toybox/rust-epoll-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fojisan-toybox%2Frust-epoll-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fojisan-toybox%2Frust-epoll-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76f6bda05d9d38fc64ab76577c4d76737d8d4ac8
[INFO] testing ojisan-toybox/rust-epoll-server 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%2Fojisan-toybox%2Frust-epoll-server" "/workspace/builds/worker-85/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-85/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ojisan-toybox/rust-epoll-server 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] started tweaking git repo https://github.com/ojisan-toybox/rust-epoll-server
[INFO] finished tweaking git repo https://github.com/ojisan-toybox/rust-epoll-server
[INFO] tweaked toml for git repo https://github.com/ojisan-toybox/rust-epoll-server written to /workspace/builds/worker-85/source/Cargo.toml
[INFO] crate git repo https://github.com/ojisan-toybox/rust-epoll-server 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b90e0802dbdb97e2eba56115d7022f8f52c0976d02338855be9d7a1090ac395f
[INFO] running `Command { std: "docker" "start" "-a" "b90e0802dbdb97e2eba56115d7022f8f52c0976d02338855be9d7a1090ac395f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b90e0802dbdb97e2eba56115d7022f8f52c0976d02338855be9d7a1090ac395f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b90e0802dbdb97e2eba56115d7022f8f52c0976d02338855be9d7a1090ac395f", kill_on_drop: false }`
[INFO] [stdout] b90e0802dbdb97e2eba56115d7022f8f52c0976d02338855be9d7a1090ac395f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48ff7743245e4ec7c31adfacf85645a740837d83f440565cac0d5b1bfec23170
[INFO] running `Command { std: "docker" "start" "-a" "48ff7743245e4ec7c31adfacf85645a740837d83f440565cac0d5b1bfec23170", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]    Compiling futures-task v0.3.18
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-sink v0.3.18
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]    Compiling futures-io v0.3.18
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling nix v0.23.0
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling futures-executor v0.3.18
[INFO] [stderr]    Compiling futures v0.3.18
[INFO] [stderr]    Compiling rust-epoll-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `eventsw` in this scope
[INFO] [stdout]   --> src/main.rs:20:48
[INFO] [stdout]    |
[INFO] [stdout] 20 |     while let Ok(nfds) = epoll_wait(epfd, &mut eventsw, -1){
[INFO] [stdout]    |                                                ^^^^^^^ help: a local variable with a similar name exists: `events`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 4 arguments but 3 arguments were supplied
[INFO] [stdout]     --> src/main.rs:20:26
[INFO] [stdout]      |
[INFO] [stdout] 20   |     while let Ok(nfds) = epoll_wait(epfd, &mut eventsw, -1){
[INFO] [stdout]      |                          ^^^^^^^^^^ ----  ------------  -- supplied 3 arguments
[INFO] [stdout]      |                          |
[INFO] [stdout]      |                          expected 4 arguments
[INFO] [stdout]      |
[INFO] [stdout] note: function defined here
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.109/src/unix/linux_like/linux/mod.rs:3573:12
[INFO] [stdout]      |
[INFO] [stdout] 3573 |     pub fn epoll_wait(
[INFO] [stdout]      |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     while let Ok(nfds) = epoll_wait(epfd, &mut eventsw, -1){
[INFO] [stdout]    |               ^^^^^^^^   ---------------------------------- this expression has type `i32`
[INFO] [stdout]    |               |
[INFO] [stdout]    |               expected `i32`, found enum `Result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type `i32`
[INFO] [stdout]               found enum `Result<_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0308, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-epoll-server` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "48ff7743245e4ec7c31adfacf85645a740837d83f440565cac0d5b1bfec23170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48ff7743245e4ec7c31adfacf85645a740837d83f440565cac0d5b1bfec23170", kill_on_drop: false }`
[INFO] [stdout] 48ff7743245e4ec7c31adfacf85645a740837d83f440565cac0d5b1bfec23170