[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] 7f92214fe336af0682e08d07e2ac0c195cfc12ae
[INFO] testing aswaving/netcat-rs against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faswaving%2Fnetcat-rs" "/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/aswaving/netcat-rs on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7/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-2021-09-08" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 2385e68588d3e15bc3a8924d3f2b4228124ef553b96cf489a295985084a2e551
[INFO] running `Command { std: "docker" "start" "-a" "2385e68588d3e15bc3a8924d3f2b4228124ef553b96cf489a295985084a2e551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2385e68588d3e15bc3a8924d3f2b4228124ef553b96cf489a295985084a2e551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2385e68588d3e15bc3a8924d3f2b4228124ef553b96cf489a295985084a2e551", kill_on_drop: false }`
[INFO] [stdout] 2385e68588d3e15bc3a8924d3f2b4228124ef553b96cf489a295985084a2e551
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--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] e07bab4bce745e110f624678bc5e12068af5244953397b6bc40e9fb63c81eb43
[INFO] running `Command { std: "docker" "start" "-a" "e07bab4bce745e110f624678bc5e12068af5244953397b6bc40e9fb63c81eb43", kill_on_drop: false }`
[INFO] [stderr]    Compiling netcat-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `nr`
[INFO] [stdout]    --> src/iopoll.rs:199:26
[INFO] [stdout]     |
[INFO] [stdout] 199 |                     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]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "e07bab4bce745e110f624678bc5e12068af5244953397b6bc40e9fb63c81eb43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e07bab4bce745e110f624678bc5e12068af5244953397b6bc40e9fb63c81eb43", kill_on_drop: false }`
[INFO] [stdout] e07bab4bce745e110f624678bc5e12068af5244953397b6bc40e9fb63c81eb43
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfea25b5063b4e0cc0ac7eedb45223bdbf40e060bc95517aa487f780decb52a9
[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" "cfea25b5063b4e0cc0ac7eedb45223bdbf40e060bc95517aa487f780decb52a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling netcat-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `nr`
[INFO] [stdout]    --> src/iopoll.rs:199:26
[INFO] [stdout]     |
[INFO] [stdout] 199 |                     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]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "cfea25b5063b4e0cc0ac7eedb45223bdbf40e060bc95517aa487f780decb52a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfea25b5063b4e0cc0ac7eedb45223bdbf40e060bc95517aa487f780decb52a9", kill_on_drop: false }`
[INFO] [stdout] cfea25b5063b4e0cc0ac7eedb45223bdbf40e060bc95517aa487f780decb52a9
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 8804aeb6d3666d0841e2b0d3d27f6794693ea6f111d28a8de79ed02f1e0f52d6
[INFO] running `Command { std: "docker" "start" "-a" "8804aeb6d3666d0841e2b0d3d27f6794693ea6f111d28a8de79ed02f1e0f52d6", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `nr`
[INFO] [stderr]    --> src/iopoll.rs:199:26
[INFO] [stderr]     |
[INFO] [stderr] 199 |                     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]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `netcat-rs` (bin "nc" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nc-d627496e1257c5b2)
[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] running `Command { std: "docker" "inspect" "8804aeb6d3666d0841e2b0d3d27f6794693ea6f111d28a8de79ed02f1e0f52d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8804aeb6d3666d0841e2b0d3d27f6794693ea6f111d28a8de79ed02f1e0f52d6", kill_on_drop: false }`
[INFO] [stdout] 8804aeb6d3666d0841e2b0d3d27f6794693ea6f111d28a8de79ed02f1e0f52d6