[INFO] cloning repository https://github.com/FabioSeixas/chat-server-no-async
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FabioSeixas/chat-server-no-async" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabioSeixas%2Fchat-server-no-async", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabioSeixas%2Fchat-server-no-async'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 456fa5b150659e53163644fdbae0b4ff49da0491
[INFO] checking FabioSeixas/chat-server-no-async against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabioSeixas%2Fchat-server-no-async" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FabioSeixas/chat-server-no-async on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FabioSeixas/chat-server-no-async
[INFO] finished tweaking git repo https://github.com/FabioSeixas/chat-server-no-async
[INFO] tweaked toml for git repo https://github.com/FabioSeixas/chat-server-no-async written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/FabioSeixas/chat-server-no-async already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96dbcedae968f1574596cd2af5864c81fcc09e5843207f1fd26ab67456641d51
[INFO] running `Command { std: "docker" "start" "-a" "96dbcedae968f1574596cd2af5864c81fcc09e5843207f1fd26ab67456641d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96dbcedae968f1574596cd2af5864c81fcc09e5843207f1fd26ab67456641d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96dbcedae968f1574596cd2af5864c81fcc09e5843207f1fd26ab67456641d51", kill_on_drop: false }`
[INFO] [stdout] 96dbcedae968f1574596cd2af5864c81fcc09e5843207f1fd26ab67456641d51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e309edaf9cc610b2dafeb7631551f210e04b2077402fc14cff12049b808b0fcd
[INFO] running `Command { std: "docker" "start" "-a" "e309edaf9cc610b2dafeb7631551f210e04b2077402fc14cff12049b808b0fcd", kill_on_drop: false }`
[INFO] [stderr]     Checking ws2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "e309edaf9cc610b2dafeb7631551f210e04b2077402fc14cff12049b808b0fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e309edaf9cc610b2dafeb7631551f210e04b2077402fc14cff12049b808b0fcd", kill_on_drop: false }`
[INFO] [stdout] e309edaf9cc610b2dafeb7631551f210e04b2077402fc14cff12049b808b0fcd
[INFO] checking FabioSeixas/chat-server-no-async against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabioSeixas%2Fchat-server-no-async" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FabioSeixas/chat-server-no-async on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FabioSeixas/chat-server-no-async
[INFO] finished tweaking git repo https://github.com/FabioSeixas/chat-server-no-async
[INFO] tweaked toml for git repo https://github.com/FabioSeixas/chat-server-no-async written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/FabioSeixas/chat-server-no-async already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9114a485ebfc167030a479129c32f0753ba72bede7bb8b03ff48642351ad05fc
[INFO] running `Command { std: "docker" "start" "-a" "9114a485ebfc167030a479129c32f0753ba72bede7bb8b03ff48642351ad05fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9114a485ebfc167030a479129c32f0753ba72bede7bb8b03ff48642351ad05fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9114a485ebfc167030a479129c32f0753ba72bede7bb8b03ff48642351ad05fc", kill_on_drop: false }`
[INFO] [stdout] 9114a485ebfc167030a479129c32f0753ba72bede7bb8b03ff48642351ad05fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c8078b05042c371e9a500511fa028f790c598ee56080ed5f60fbfdc8991ccf0
[INFO] running `Command { std: "docker" "start" "-a" "2c8078b05042c371e9a500511fa028f790c598ee56080ed5f60fbfdc8991ccf0", kill_on_drop: false }`
[INFO] [stderr]     Checking ws2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/main.rs:51:31
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 thread::spawn(move || loop {
[INFO] [stdout]    |                               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 51 ~                 thread::spawn(move || -> /* Type */ { loop {
[INFO] [stdout] 52 |                     let mut buf: [u8; 64] = [0; 64];
[INFO] [stdout]  ...
[INFO] [stdout] 59 |                         .unwrap();
[INFO] [stdout] 60 ~                 } });
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/main.rs:51:31
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 thread::spawn(move || loop {
[INFO] [stdout]    |                               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 51 ~                 thread::spawn(move || -> /* Type */ { loop {
[INFO] [stdout] 52 |                     let mut buf: [u8; 64] = [0; 64];
[INFO] [stdout]  ...
[INFO] [stdout] 59 |                         .unwrap();
[INFO] [stdout] 60 ~                 } });
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ws2` (bin "ws2") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ws2` (bin "ws2" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2c8078b05042c371e9a500511fa028f790c598ee56080ed5f60fbfdc8991ccf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8078b05042c371e9a500511fa028f790c598ee56080ed5f60fbfdc8991ccf0", kill_on_drop: false }`
[INFO] [stdout] 2c8078b05042c371e9a500511fa028f790c598ee56080ed5f60fbfdc8991ccf0