[INFO] cloning repository https://github.com/aswaving/netcat-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aswaving/netcat-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faswaving%2Fnetcat-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faswaving%2Fnetcat-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c712c5e99396d67e383437224913536336388ef
[INFO] testing aswaving/netcat-rs against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faswaving%2Fnetcat-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aswaving/netcat-rs on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aswaving/netcat-rs
[INFO] finished tweaking git repo https://github.com/aswaving/netcat-rs
[INFO] tweaked toml for git repo https://github.com/aswaving/netcat-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/aswaving/netcat-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0267a561e1bc1200d7868f7fb2c523755af379e629c0b038cfb4d791c0a3b4ab
[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" "0267a561e1bc1200d7868f7fb2c523755af379e629c0b038cfb4d791c0a3b4ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0267a561e1bc1200d7868f7fb2c523755af379e629c0b038cfb4d791c0a3b4ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0267a561e1bc1200d7868f7fb2c523755af379e629c0b038cfb4d791c0a3b4ab", kill_on_drop: false }`
[INFO] [stdout] 0267a561e1bc1200d7868f7fb2c523755af379e629c0b038cfb4d791c0a3b4ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 621505dba6f71b922a404f3ce59f4941305c7e8da50f42f0c6daaeca0072b526
[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" "621505dba6f71b922a404f3ce59f4941305c7e8da50f42f0c6daaeca0072b526", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.3.15
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling netcat-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `event_loop`
[INFO] [stdout]   --> src/iopoll.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn error(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream_id`
[INFO] [stdout]   --> src/iopoll.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn error(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stdout]    |                                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event_loop`
[INFO] [stdout]   --> src/iopoll.rs:21:26
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn hangup(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream_id`
[INFO] [stdout]   --> src/iopoll.rs:21:54
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn hangup(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stdout]    |                                                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event_loop`
[INFO] [stdout]   --> src/iopoll.rs:26:27
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn timeout(&mut self, event_loop: &mut EventLoop) {}
[INFO] [stdout]    |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nr`
[INFO] [stdout]    --> src/iopoll.rs:200:26
[INFO] [stdout]     |
[INFO] [stdout] 200 |                     for (nr, &(fd, eventset)) in bla.iter().enumerate() {
[INFO] [stdout]     |                          ^^ help: if this is intentional, prefix it with an underscore: `_nr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdin_stream`
[INFO] [stdout]    --> src/iopoll.rs:254:38
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn register_stdin(&mut self, stdin_stream: &Stdin) -> Token {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.27s
[INFO] running `Command { std: "docker" "inspect" "621505dba6f71b922a404f3ce59f4941305c7e8da50f42f0c6daaeca0072b526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "621505dba6f71b922a404f3ce59f4941305c7e8da50f42f0c6daaeca0072b526", kill_on_drop: false }`
[INFO] [stdout] 621505dba6f71b922a404f3ce59f4941305c7e8da50f42f0c6daaeca0072b526
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", 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] a31973018a6d0d8903585de132625ffa2514443dcdf9846e61697f5bcedb7d78
[INFO] running `Command { std: "docker" "start" "-a" "a31973018a6d0d8903585de132625ffa2514443dcdf9846e61697f5bcedb7d78", kill_on_drop: false }`
[INFO] [stderr]    Compiling netcat-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `event_loop`
[INFO] [stdout]   --> src/iopoll.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn error(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream_id`
[INFO] [stdout]   --> src/iopoll.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn error(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stdout]    |                                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event_loop`
[INFO] [stdout]   --> src/iopoll.rs:21:26
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn hangup(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream_id`
[INFO] [stdout]   --> src/iopoll.rs:21:54
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn hangup(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stdout]    |                                                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event_loop`
[INFO] [stdout]   --> src/iopoll.rs:26:27
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn timeout(&mut self, event_loop: &mut EventLoop) {}
[INFO] [stdout]    |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nr`
[INFO] [stdout]    --> src/iopoll.rs:200:26
[INFO] [stdout]     |
[INFO] [stdout] 200 |                     for (nr, &(fd, eventset)) in bla.iter().enumerate() {
[INFO] [stdout]     |                          ^^ help: if this is intentional, prefix it with an underscore: `_nr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdin_stream`
[INFO] [stdout]    --> src/iopoll.rs:254:38
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn register_stdin(&mut self, stdin_stream: &Stdin) -> Token {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.29s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a31973018a6d0d8903585de132625ffa2514443dcdf9846e61697f5bcedb7d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a31973018a6d0d8903585de132625ffa2514443dcdf9846e61697f5bcedb7d78", kill_on_drop: false }`
[INFO] [stdout] a31973018a6d0d8903585de132625ffa2514443dcdf9846e61697f5bcedb7d78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 70eac26476d5f8d26b7750363233fe18539d87c6bd29408dbb96cce812373c04
[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" "70eac26476d5f8d26b7750363233fe18539d87c6bd29408dbb96cce812373c04", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `event_loop`
[INFO] [stderr]   --> src/iopoll.rs:20:25
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn error(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stderr]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream_id`
[INFO] [stderr]   --> src/iopoll.rs:20:53
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn error(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stderr]    |                                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event_loop`
[INFO] [stderr]   --> src/iopoll.rs:21:26
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn hangup(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stderr]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream_id`
[INFO] [stderr]   --> src/iopoll.rs:21:54
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn hangup(&mut self, event_loop: &mut EventLoop, stream_id: Token) {}
[INFO] [stderr]    |                                                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event_loop`
[INFO] [stderr]   --> src/iopoll.rs:26:27
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn timeout(&mut self, event_loop: &mut EventLoop) {}
[INFO] [stderr]    |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nr`
[INFO] [stderr]    --> src/iopoll.rs:200:26
[INFO] [stderr]     |
[INFO] [stderr] 200 |                     for (nr, &(fd, eventset)) in bla.iter().enumerate() {
[INFO] [stderr]     |                          ^^ help: if this is intentional, prefix it with an underscore: `_nr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stdin_stream`
[INFO] [stderr]    --> src/iopoll.rs:254:38
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub fn register_stdin(&mut self, stdin_stream: &Stdin) -> Token {
[INFO] [stderr]     |                                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[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 /opt/rustwide/target/debug/deps/nc-bc7d912f30ba5a75
[INFO] running `Command { std: "docker" "inspect" "70eac26476d5f8d26b7750363233fe18539d87c6bd29408dbb96cce812373c04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70eac26476d5f8d26b7750363233fe18539d87c6bd29408dbb96cce812373c04", kill_on_drop: false }`
[INFO] [stdout] 70eac26476d5f8d26b7750363233fe18539d87c6bd29408dbb96cce812373c04