[INFO] cloning repository https://github.com/varesa/rs-network-stack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/varesa/rs-network-stack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaresa%2Frs-network-stack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaresa%2Frs-network-stack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 348ddd4f8ee5b31b2179ccc89271ef9e8d26c29a
[INFO] checking varesa/rs-network-stack against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaresa%2Frs-network-stack" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/varesa/rs-network-stack on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config
[INFO] started tweaking git repo https://github.com/varesa/rs-network-stack
[INFO] finished tweaking git repo https://github.com/varesa/rs-network-stack
[INFO] tweaked toml for git repo https://github.com/varesa/rs-network-stack written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/varesa/rs-network-stack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 9e46ceb549fc703c8cfc55b2a55122161b7073b4bc910cae96ef3973ba0489f2
[INFO] running `Command { std: "docker" "start" "-a" "9e46ceb549fc703c8cfc55b2a55122161b7073b4bc910cae96ef3973ba0489f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e46ceb549fc703c8cfc55b2a55122161b7073b4bc910cae96ef3973ba0489f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e46ceb549fc703c8cfc55b2a55122161b7073b4bc910cae96ef3973ba0489f2", kill_on_drop: false }`
[INFO] [stdout] 9e46ceb549fc703c8cfc55b2a55122161b7073b4bc910cae96ef3973ba0489f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53c192bd00cd09cfac8fe37fc9c6ac49c62591c874368df6da100aff494e0f5e
[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" "53c192bd00cd09cfac8fe37fc9c6ac49c62591c874368df6da100aff494e0f5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking as-slice v0.1.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking nix v0.11.1
[INFO] [stderr]     Checking netdevice v0.1.1
[INFO] [stderr]     Checking nix v0.19.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tun-tap v0.1.2
[INFO] [stderr]     Checking network_bridge v0.1.1
[INFO] [stderr]     Checking rs-network-stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tx_buffer`
[INFO] [stdout]   --> src/net.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn update<F>(rx_buffer: &[u8], tx_buffer: &mut [u8], send: F) -> ()
[INFO] [stdout]    |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_buffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send`
[INFO] [stdout]   --> src/net.rs:11:58
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn update<F>(rx_buffer: &[u8], tx_buffer: &mut [u8], send: F) -> ()
[INFO] [stdout]    |                                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx_buffer`
[INFO] [stdout]   --> src/net.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn update<F>(rx_buffer: &[u8], tx_buffer: &mut [u8], send: F) -> ()
[INFO] [stdout]    |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_buffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send`
[INFO] [stdout]   --> src/net.rs:11:58
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn update<F>(rx_buffer: &[u8], tx_buffer: &mut [u8], send: F) -> ()
[INFO] [stdout]    |                                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MY_MAC_BYTES`
[INFO] [stdout]  --> src/net.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const MY_MAC_BYTES: &[u8] = &[0x02, 0xDE, 0xAD, 0x00, 0xBE, 0xEF];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MY_MAC_BYTES`
[INFO] [stdout]  --> src/net.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const MY_MAC_BYTES: &[u8] = &[0x02, 0xDE, 0xAD, 0x00, 0xBE, 0xEF];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         iface.send(&tx_buffer[..len]);
[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: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         iface.send(&tx_buffer[..len]);
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.33s
[INFO] running `Command { std: "docker" "inspect" "53c192bd00cd09cfac8fe37fc9c6ac49c62591c874368df6da100aff494e0f5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53c192bd00cd09cfac8fe37fc9c6ac49c62591c874368df6da100aff494e0f5e", kill_on_drop: false }`
[INFO] [stdout] 53c192bd00cd09cfac8fe37fc9c6ac49c62591c874368df6da100aff494e0f5e