[INFO] cloning repository https://github.com/hobarak/rustio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hobarak/rustio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobarak%2Frustio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobarak%2Frustio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96eda294585c48f3761859824ac97dbddd5393e1
[INFO] testing hobarak/rustio against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobarak%2Frustio" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hobarak/rustio on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hobarak/rustio
[INFO] finished tweaking git repo https://github.com/hobarak/rustio
[INFO] tweaked toml for git repo https://github.com/hobarak/rustio written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/hobarak/rustio already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b60d240f0b24952ce446ab93f4a815a75cf6cad68dd4d5d3f4b904ea21b9b70
[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" "2b60d240f0b24952ce446ab93f4a815a75cf6cad68dd4d5d3f4b904ea21b9b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b60d240f0b24952ce446ab93f4a815a75cf6cad68dd4d5d3f4b904ea21b9b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b60d240f0b24952ce446ab93f4a815a75cf6cad68dd4d5d3f4b904ea21b9b70", kill_on_drop: false }`
[INFO] [stdout] 2b60d240f0b24952ce446ab93f4a815a75cf6cad68dd4d5d3f4b904ea21b9b70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71ddf0e5afa433d3b4289e06d8bc4fecacf0a61bd3041dba9ad9000c12bb9dcf
[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" "71ddf0e5afa433d3b4289e06d8bc4fecacf0a61bd3041dba9ad9000c12bb9dcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling rustio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `AsyncWrite`
[INFO] [stdout]  --> src/futur.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::{AsyncRead, AsyncWrite};
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]   --> src/futur.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     cell::RefCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> src/futur.rs:65:64
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]    |                                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]   --> src/futur.rs:65:73
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]    |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]    --> src/futur.rs:123:67
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]     |                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/futur.rs:123:76
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]     |                                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/epoll.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let mut listener = TcpListener::bind(addr).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/libuv.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut eloop = EventLoop::new().unwrap();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/epoll.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 46 |             panic!(io::Error::last_os_error());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 46 |             panic!("{}", io::Error::last_os_error());
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 46 |             std::panic::panic_any(io::Error::last_os_error());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `Runtime` should have an upper case name
[INFO] [stdout]   --> src/futur.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 |   static Runtime: Runtime = Runtime::new();
[INFO] [stdout]    |          ^^^^^^^ help: convert the identifier to upper case: `RUNTIME`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/futur.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |         arc_self.task_sender.send(cloned);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `currentToken` should have a snake case name
[INFO] [stdout]   --> src/libuv.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub currentToken: Cell<Token>,
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `current_token`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `eventLoop` should have a snake case name
[INFO] [stdout]   --> src/libuv.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub eventLoop: EventLoop,
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `event_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.08s
[INFO] running `Command { std: "docker" "inspect" "71ddf0e5afa433d3b4289e06d8bc4fecacf0a61bd3041dba9ad9000c12bb9dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ddf0e5afa433d3b4289e06d8bc4fecacf0a61bd3041dba9ad9000c12bb9dcf", kill_on_drop: false }`
[INFO] [stdout] 71ddf0e5afa433d3b4289e06d8bc4fecacf0a61bd3041dba9ad9000c12bb9dcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b08b3a7b4de04822a511d500fccfb22eb908990786c178dc28537b8a1594ec0d
[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" "b08b3a7b4de04822a511d500fccfb22eb908990786c178dc28537b8a1594ec0d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused import: `AsyncWrite`
[INFO] [stdout]  --> src/futur.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::{AsyncRead, AsyncWrite};
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]   --> src/futur.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     cell::RefCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> src/futur.rs:65:64
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]    |                                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]   --> src/futur.rs:65:73
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]    |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]    --> src/futur.rs:123:67
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]     |                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/futur.rs:123:76
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]     |                                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/epoll.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let mut listener = TcpListener::bind(addr).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/libuv.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut eloop = EventLoop::new().unwrap();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/epoll.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 46 |             panic!(io::Error::last_os_error());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 46 |             panic!("{}", io::Error::last_os_error());
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 46 |             std::panic::panic_any(io::Error::last_os_error());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `Runtime` should have an upper case name
[INFO] [stdout]   --> src/futur.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 |   static Runtime: Runtime = Runtime::new();
[INFO] [stdout]    |          ^^^^^^^ help: convert the identifier to upper case: `RUNTIME`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/futur.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |         arc_self.task_sender.send(cloned);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `currentToken` should have a snake case name
[INFO] [stdout]   --> src/libuv.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub currentToken: Cell<Token>,
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `current_token`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: structure field `eventLoop` should have a snake case name
[INFO] [stdout]   --> src/libuv.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub eventLoop: EventLoop,
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `event_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> tests/libuv.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromRawFd`, `RawFd`
[INFO] [stdout]  --> tests/libuv.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::os::unix::io::{AsRawFd, FromRawFd, RawFd};
[INFO] [stdout]   |                                  ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncWrite`
[INFO] [stdout]  --> src/futur.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::{AsyncRead, AsyncWrite};
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]   --> src/futur.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     cell::RefCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/libuv.rs:16:61
[INFO] [stdout]    |
[INFO] [stdout] 16 |         runtime.add(stream.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]    |                                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]   --> tests/libuv.rs:16:70
[INFO] [stdout]    |
[INFO] [stdout] 16 |         runtime.add(stream.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]    |                                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]   --> tests/libuv.rs:14:68
[INFO] [stdout]    |
[INFO] [stdout] 14 |     runtime.add(listener.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]    |                                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/libuv.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut runtime = Runtime::new();
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/libuv.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut listener = MyTCPListener::bind("127.0.0.1:7879");
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromRawFd`, `RawFd`
[INFO] [stdout]  --> tests/epoll.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::os::unix::io::{AsRawFd, FromRawFd, RawFd};
[INFO] [stdout]   |                                  ^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> tests/epoll.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 77  | /     loop {
[INFO] [stdout] 78  | |         let events = eloop.wait()?;
[INFO] [stdout] 79  | |
[INFO] [stdout] 80  | |         println!("{:?}", events.len());
[INFO] [stdout] ...   |
[INFO] [stdout] 98  | |         }
[INFO] [stdout] 99  | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 100 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncRead`, `AsyncWrite`
[INFO] [stdout]  --> tests/futur.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::{AsyncRead, AsyncWrite};
[INFO] [stdout]   |               ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]  --> tests/futur.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/epoll.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut eloop = EventLoop::new().unwrap();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/epoll.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut listener = MyTCPListener::bind("127.0.0.1:7878");
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/epoll.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut state = connections.get_mut(&event.token).unwrap();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/epoll.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut eloop = EventLoop::new()?;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `client`
[INFO] [stdout]   --> tests/epoll.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn client() -> Result<(), std::io::Error> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/epoll.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 eloop.add(stream.as_raw_fd(), id, ffi::EPOLLIN);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> tests/futur.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut listener = TcpListener::bind("127.0.0.1:7879");
[INFO] [stdout]   |         ----^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> src/futur.rs:65:64
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]    |                                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]   --> src/futur.rs:65:73
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]    |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]    --> src/futur.rs:123:67
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]     |                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/futur.rs:123:76
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stdout]     |                                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/epoll.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let mut listener = TcpListener::bind(addr).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/libuv.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut eloop = EventLoop::new().unwrap();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/epoll.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 46 |             panic!(io::Error::last_os_error());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 46 |             panic!("{}", io::Error::last_os_error());
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 46 |             std::panic::panic_any(io::Error::last_os_error());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `Runtime` should have an upper case name
[INFO] [stdout]   --> src/futur.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 |   static Runtime: Runtime = Runtime::new();
[INFO] [stdout]    |          ^^^^^^^ help: convert the identifier to upper case: `RUNTIME`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/futur.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |         arc_self.task_sender.send(cloned);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `currentToken` should have a snake case name
[INFO] [stdout]   --> src/libuv.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub currentToken: Cell<Token>,
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `current_token`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `eventLoop` should have a snake case name
[INFO] [stdout]   --> src/libuv.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub eventLoop: EventLoop,
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `event_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.33s
[INFO] running `Command { std: "docker" "inspect" "b08b3a7b4de04822a511d500fccfb22eb908990786c178dc28537b8a1594ec0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b08b3a7b4de04822a511d500fccfb22eb908990786c178dc28537b8a1594ec0d", kill_on_drop: false }`
[INFO] [stdout] b08b3a7b4de04822a511d500fccfb22eb908990786c178dc28537b8a1594ec0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", 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] 45bf367af540fcaff2f1a6e7784c6da840a9bc9b90dcc95a9228672a36964813
[INFO] running `Command { std: "docker" "start" "-a" "45bf367af540fcaff2f1a6e7784c6da840a9bc9b90dcc95a9228672a36964813", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `AsyncWrite`
[INFO] [stderr]  --> src/futur.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures::{AsyncRead, AsyncWrite};
[INFO] [stderr]   |                          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cell::RefCell`
[INFO] [stderr]   --> src/futur.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     cell::RefCell,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `runtime`
[INFO] [stderr]   --> src/futur.rs:65:64
[INFO] [stderr]    |
[INFO] [stderr] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]    |                                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]   --> src/futur.rs:65:73
[INFO] [stderr]    |
[INFO] [stderr] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]    |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `runtime`
[INFO] [stderr]    --> src/futur.rs:123:67
[INFO] [stderr]     |
[INFO] [stderr] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]     |                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]    --> src/futur.rs:123:76
[INFO] [stderr]     |
[INFO] [stderr] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]     |                                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/epoll.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let mut listener = TcpListener::bind(addr).unwrap();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/libuv.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let mut eloop = EventLoop::new().unwrap();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/epoll.rs:46:20
[INFO] [stderr]    |
[INFO] [stderr] 46 |             panic!(io::Error::last_os_error());
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 46 |             panic!("{}", io::Error::last_os_error());
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 46 |             std::panic::panic_any(io::Error::last_os_error());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Runtime` should have an upper case name
[INFO] [stderr]   --> src/futur.rs:29:10
[INFO] [stderr]    |
[INFO] [stderr] 29 |   static Runtime: Runtime = Runtime::new();
[INFO] [stderr]    |          ^^^^^^^ help: convert the identifier to upper case: `RUNTIME`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/futur.rs:194:9
[INFO] [stderr]     |
[INFO] [stderr] 194 |         arc_self.task_sender.send(cloned);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `currentToken` should have a snake case name
[INFO] [stderr]   --> src/libuv.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub currentToken: Cell<Token>,
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `current_token`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `eventLoop` should have a snake case name
[INFO] [stderr]   --> src/libuv.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub eventLoop: EventLoop,
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `event_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AsyncWrite`
[INFO] [stderr]  --> src/futur.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures::{AsyncRead, AsyncWrite};
[INFO] [stderr]   |                          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cell::RefCell`
[INFO] [stderr]   --> src/futur.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     cell::RefCell,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `runtime`
[INFO] [stderr]   --> src/futur.rs:65:64
[INFO] [stderr]    |
[INFO] [stderr] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]    |                                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]   --> src/futur.rs:65:73
[INFO] [stderr]    |
[INFO] [stderr] 65 |                     r.add(p.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]    |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `runtime`
[INFO] [stderr]    --> src/futur.rs:123:67
[INFO] [stderr]     |
[INFO] [stderr] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]     |                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]    --> src/futur.rs:123:76
[INFO] [stderr]     |
[INFO] [stderr] 123 |                     r.add(self.0.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]     |                                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/epoll.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let mut listener = TcpListener::bind(addr).unwrap();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/libuv.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let mut eloop = EventLoop::new().unwrap();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/epoll.rs:46:20
[INFO] [stderr]    |
[INFO] [stderr] 46 |             panic!(io::Error::last_os_error());
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 46 |             panic!("{}", io::Error::last_os_error());
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 46 |             std::panic::panic_any(io::Error::last_os_error());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Runtime` should have an upper case name
[INFO] [stderr]   --> src/futur.rs:29:10
[INFO] [stderr]    |
[INFO] [stderr] 29 |   static Runtime: Runtime = Runtime::new();
[INFO] [stderr]    |          ^^^^^^^ help: convert the identifier to upper case: `RUNTIME`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/futur.rs:194:9
[INFO] [stderr]     |
[INFO] [stderr] 194 |         arc_self.task_sender.send(cloned);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `currentToken` should have a snake case name
[INFO] [stderr]   --> src/libuv.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub currentToken: Cell<Token>,
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `current_token`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `eventLoop` should have a snake case name
[INFO] [stderr]   --> src/libuv.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub eventLoop: EventLoop,
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `event_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> tests/libuv.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FromRawFd`, `RawFd`
[INFO] [stderr]  --> tests/libuv.rs:6:34
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::os::unix::io::{AsRawFd, FromRawFd, RawFd};
[INFO] [stderr]   |                                  ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `runtime`
[INFO] [stderr]   --> tests/libuv.rs:16:61
[INFO] [stderr]    |
[INFO] [stderr] 16 |         runtime.add(stream.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]    |                                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]   --> tests/libuv.rs:16:70
[INFO] [stderr]    |
[INFO] [stderr] 16 |         runtime.add(stream.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]    |                                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]   --> tests/libuv.rs:14:68
[INFO] [stderr]    |
[INFO] [stderr] 14 |     runtime.add(listener.as_raw_fd(), ffi::EPOLLIN, move |runtime, token| {
[INFO] [stderr]    |                                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/libuv.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut runtime = Runtime::new();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/libuv.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut listener = MyTCPListener::bind("127.0.0.1:7879");
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FromRawFd`, `RawFd`
[INFO] [stderr]  --> tests/epoll.rs:5:34
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::os::unix::io::{AsRawFd, FromRawFd, RawFd};
[INFO] [stderr]   |                                  ^^^^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> tests/epoll.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 77  | /     loop {
[INFO] [stderr] 78  | |         let events = eloop.wait()?;
[INFO] [stderr] 79  | |
[INFO] [stderr] 80  | |         println!("{:?}", events.len());
[INFO] [stderr] ...   |
[INFO] [stderr] 98  | |         }
[INFO] [stderr] 99  | |     }
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] 100 |       Ok(())
[INFO] [stderr]     |       ^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/epoll.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut eloop = EventLoop::new().unwrap();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/epoll.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut listener = MyTCPListener::bind("127.0.0.1:7878");
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/epoll.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut state = connections.get_mut(&event.token).unwrap();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/epoll.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |     let mut eloop = EventLoop::new()?;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `client`
[INFO] [stderr]   --> tests/epoll.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn client() -> Result<(), std::io::Error> {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> tests/epoll.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 eloop.add(stream.as_raw_fd(), id, ffi::EPOLLIN);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AsyncRead`, `AsyncWrite`
[INFO] [stderr]  --> tests/futur.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use futures::{AsyncRead, AsyncWrite};
[INFO] [stderr]   |               ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]  --> tests/futur.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::sync::{Arc, Mutex};
[INFO] [stderr]   |                 ^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> tests/futur.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut listener = TcpListener::bind("127.0.0.1:7879");
[INFO] [stderr]   |         ----^^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustio-16f0d9dd25a6ad00)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/epoll.rs (/opt/rustwide/target/debug/deps/epoll-20ad3f8c26c6fe67)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/futur.rs (/opt/rustwide/target/debug/deps/futur-7d3e17cc2370677b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test server has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "45bf367af540fcaff2f1a6e7784c6da840a9bc9b90dcc95a9228672a36964813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45bf367af540fcaff2f1a6e7784c6da840a9bc9b90dcc95a9228672a36964813", kill_on_drop: false }`
[INFO] [stdout] 45bf367af540fcaff2f1a6e7784c6da840a9bc9b90dcc95a9228672a36964813
