[INFO] cloning repository https://github.com/awkrail/tnets
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/awkrail/tnets" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawkrail%2Ftnets", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawkrail%2Ftnets'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 015cc3a4004b7b3f8fca4cb6a415ec54900783b8
[INFO] checking awkrail/tnets against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawkrail%2Ftnets" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/awkrail/tnets on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/awkrail/tnets
[INFO] finished tweaking git repo https://github.com/awkrail/tnets
[INFO] tweaked toml for git repo https://github.com/awkrail/tnets written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/awkrail/tnets 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.85
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.85
[INFO] [stderr]   Downloaded iana-time-zone v0.1.56
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.85
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 073289cc523455573ecb33b41160c365e1831611687a96d07e8b5ac1f43b0967
[INFO] running `Command { std: "docker" "start" "-a" "073289cc523455573ecb33b41160c365e1831611687a96d07e8b5ac1f43b0967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "073289cc523455573ecb33b41160c365e1831611687a96d07e8b5ac1f43b0967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073289cc523455573ecb33b41160c365e1831611687a96d07e8b5ac1f43b0967", kill_on_drop: false }`
[INFO] [stdout] 073289cc523455573ecb33b41160c365e1831611687a96d07e8b5ac1f43b0967
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd7537bcd9f560656ccb7af5534c88399ba5008755f1b5f16147e7314f665205
[INFO] running `Command { std: "docker" "start" "-a" "dd7537bcd9f560656ccb7af5534c88399ba5008755f1b5f16147e7314f665205", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking tnets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `debug`, `error`, `info`, `trace`, `warn`
[INFO] [stdout]  --> src/util.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{Level, trace, debug, info, warn, error};
[INFO] [stdout]   |                  ^^^^^  ^^^^^  ^^^^  ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `error`, `info`, `trace`, `warn`
[INFO] [stdout]  --> src/util.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{Level, trace, debug, info, warn, error};
[INFO] [stdout]   |                  ^^^^^  ^^^^^  ^^^^  ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/net.rs:45:39
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn transmit(&self, dev_type: u16, data: [u8; 48], len: usize) -> i8
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/net.rs:107:36
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn input(&self, dev_type: u16, data: u8, len: u16) -> i8
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mut dummy = driver::dummy::dummy_init();
[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: constant `LOOPBACK_IP_ADDR` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const LOOPBACK_IP_ADDR: &str = "127.0.0.1";
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOOPBACK_NETMASK` is never used
[INFO] [stdout]   --> src/main.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const LOOPBACK_NETMASK: &str = "255.0.0.0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_NAME` is never used
[INFO] [stdout]   --> src/main.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const ETHER_TAP_NAME: &str = "tap0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_HW_ADDR` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const ETHER_TAP_HW_ADDR: &str = "00:00:5e:00:53:01";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_IP_ADDR` is never used
[INFO] [stdout]   --> src/main.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const ETHER_TAP_IP_ADDR: &str = "192.0.2.2";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_NETMASK` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const ETHER_TAP_NETMASK: &str = "255.255.255.0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_GATEWAY` is never used
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const DEFAULT_GATEWAY: &str = "192.0.2.1";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_little_endian` is never used
[INFO] [stdout]   --> src/util.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn is_little_endian() -> bool
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `byteswap` is never used
[INFO] [stdout]   --> src/util.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait Byteswap 
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 44 | {
[INFO] [stdout] 45 |     fn byteswap(&self) -> Self
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byteswap` is never used
[INFO] [stdout]   --> src/util.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn byteswap<T>(v: T) -> T
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hton` is never used
[INFO] [stdout]   --> src/util.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn hton<T: Byteswap>(h: T) -> T
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ntoh` is never used
[INFO] [stdout]   --> src/util.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn ntoh<T: Byteswap>(n: T) -> T
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cksum16` is never used
[INFO] [stdout]   --> src/util.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn cksum16() -> u16
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IFNAMSIZ` is never used
[INFO] [stdout]  --> src/net.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const IFNAMSIZ: u16 = 16;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_TYPE_LOOPBACK` is never used
[INFO] [stdout]  --> src/net.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const NET_DEVICE_TYPE_LOOPBACK: u16  = 0x0001;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_TYPE_ETHERNET` is never used
[INFO] [stdout]  --> src/net.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const NET_DEVICE_TYPE_ETHERNET: u16  = 0x0002;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_LOOPBACK` is never used
[INFO] [stdout]  --> src/net.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const NET_DEVICE_FLAG_LOOPBACK: u16  = 0x0010;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_BROADCAST` is never used
[INFO] [stdout]  --> src/net.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const NET_DEVICE_FLAG_BROADCAST: u16 = 0x0020;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_P2P` is never used
[INFO] [stdout]  --> src/net.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const NET_DEVICE_FLAG_P2P: u16       = 0x0040;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_NEED_ARP` is never used
[INFO] [stdout]  --> src/net.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const NET_DEVICE_FLAG_NEED_ARP: u16  = 0x0100;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVCIE_ADDR_LEN` is never used
[INFO] [stdout]   --> src/net.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const NET_DEVCIE_ADDR_LEN: u16       =     16;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hlen` and `alen` are never read
[INFO] [stdout]   --> src/net.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct NetDevice { 
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     hlen: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     alen: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `input` is never used
[INFO] [stdout]    --> src/net.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl NetDevice {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn input(&self, dev_type: u16, data: u8, len: u16) -> i8
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/net.rs:45:39
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn transmit(&self, dev_type: u16, data: [u8; 48], len: usize) -> i8
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/net.rs:107:36
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn input(&self, dev_type: u16, data: u8, len: u16) -> i8
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mut dummy = driver::dummy::dummy_init();
[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: constant `LOOPBACK_IP_ADDR` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const LOOPBACK_IP_ADDR: &str = "127.0.0.1";
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOOPBACK_NETMASK` is never used
[INFO] [stdout]   --> src/main.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const LOOPBACK_NETMASK: &str = "255.0.0.0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_NAME` is never used
[INFO] [stdout]   --> src/main.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const ETHER_TAP_NAME: &str = "tap0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_HW_ADDR` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const ETHER_TAP_HW_ADDR: &str = "00:00:5e:00:53:01";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_IP_ADDR` is never used
[INFO] [stdout]   --> src/main.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const ETHER_TAP_IP_ADDR: &str = "192.0.2.2";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_NETMASK` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const ETHER_TAP_NETMASK: &str = "255.255.255.0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_GATEWAY` is never used
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const DEFAULT_GATEWAY: &str = "192.0.2.1";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_little_endian` is never used
[INFO] [stdout]   --> src/util.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn is_little_endian() -> bool
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `byteswap` is never used
[INFO] [stdout]   --> src/util.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait Byteswap 
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 44 | {
[INFO] [stdout] 45 |     fn byteswap(&self) -> Self
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byteswap` is never used
[INFO] [stdout]   --> src/util.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn byteswap<T>(v: T) -> T
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hton` is never used
[INFO] [stdout]   --> src/util.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn hton<T: Byteswap>(h: T) -> T
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ntoh` is never used
[INFO] [stdout]   --> src/util.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn ntoh<T: Byteswap>(n: T) -> T
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cksum16` is never used
[INFO] [stdout]   --> src/util.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn cksum16() -> u16
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IFNAMSIZ` is never used
[INFO] [stdout]  --> src/net.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const IFNAMSIZ: u16 = 16;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_TYPE_LOOPBACK` is never used
[INFO] [stdout]  --> src/net.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const NET_DEVICE_TYPE_LOOPBACK: u16  = 0x0001;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_TYPE_ETHERNET` is never used
[INFO] [stdout]  --> src/net.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const NET_DEVICE_TYPE_ETHERNET: u16  = 0x0002;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_LOOPBACK` is never used
[INFO] [stdout]  --> src/net.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const NET_DEVICE_FLAG_LOOPBACK: u16  = 0x0010;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_BROADCAST` is never used
[INFO] [stdout]  --> src/net.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const NET_DEVICE_FLAG_BROADCAST: u16 = 0x0020;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_P2P` is never used
[INFO] [stdout]  --> src/net.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const NET_DEVICE_FLAG_P2P: u16       = 0x0040;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_NEED_ARP` is never used
[INFO] [stdout]  --> src/net.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const NET_DEVICE_FLAG_NEED_ARP: u16  = 0x0100;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVCIE_ADDR_LEN` is never used
[INFO] [stdout]   --> src/net.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const NET_DEVCIE_ADDR_LEN: u16       =     16;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hlen` and `alen` are never read
[INFO] [stdout]   --> src/net.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct NetDevice { 
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     hlen: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     alen: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `input` is never used
[INFO] [stdout]    --> src/net.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl NetDevice {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn input(&self, dev_type: u16, data: u8, len: u16) -> i8
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.76s
[INFO] running `Command { std: "docker" "inspect" "dd7537bcd9f560656ccb7af5534c88399ba5008755f1b5f16147e7314f665205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7537bcd9f560656ccb7af5534c88399ba5008755f1b5f16147e7314f665205", kill_on_drop: false }`
[INFO] [stdout] dd7537bcd9f560656ccb7af5534c88399ba5008755f1b5f16147e7314f665205
[INFO] checking awkrail/tnets against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawkrail%2Ftnets" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/awkrail/tnets on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/awkrail/tnets
[INFO] finished tweaking git repo https://github.com/awkrail/tnets
[INFO] tweaked toml for git repo https://github.com/awkrail/tnets written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/awkrail/tnets 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed9a9cb5aaedc299f29e4f4032722af33bd0ceebebcd14f7843d83d10fc6548a
[INFO] running `Command { std: "docker" "start" "-a" "ed9a9cb5aaedc299f29e4f4032722af33bd0ceebebcd14f7843d83d10fc6548a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed9a9cb5aaedc299f29e4f4032722af33bd0ceebebcd14f7843d83d10fc6548a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9a9cb5aaedc299f29e4f4032722af33bd0ceebebcd14f7843d83d10fc6548a", kill_on_drop: false }`
[INFO] [stdout] ed9a9cb5aaedc299f29e4f4032722af33bd0ceebebcd14f7843d83d10fc6548a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d250848287746e23ab9b4d3580462ab23ca8d12adf3941222af7c3e378a5e8b3
[INFO] running `Command { std: "docker" "start" "-a" "d250848287746e23ab9b4d3580462ab23ca8d12adf3941222af7c3e378a5e8b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking tnets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `debug`, `error`, `info`, `trace`, `warn`
[INFO] [stdout]  --> src/util.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{Level, trace, debug, info, warn, error};
[INFO] [stdout]   |                  ^^^^^  ^^^^^  ^^^^  ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `error`, `info`, `trace`, `warn`
[INFO] [stdout]  --> src/util.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{Level, trace, debug, info, warn, error};
[INFO] [stdout]   |                  ^^^^^  ^^^^^  ^^^^  ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/net.rs:45:39
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn transmit(&self, dev_type: u16, data: [u8; 48], len: usize) -> i8
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/net.rs:107:36
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn input(&self, dev_type: u16, data: u8, len: u16) -> i8
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mut dummy = driver::dummy::dummy_init();
[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: `data`
[INFO] [stdout]   --> src/net.rs:45:39
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn transmit(&self, dev_type: u16, data: [u8; 48], len: usize) -> i8
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOOPBACK_IP_ADDR` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const LOOPBACK_IP_ADDR: &str = "127.0.0.1";
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOOPBACK_NETMASK` is never used
[INFO] [stdout]   --> src/main.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const LOOPBACK_NETMASK: &str = "255.0.0.0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_NAME` is never used
[INFO] [stdout]   --> src/main.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const ETHER_TAP_NAME: &str = "tap0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_HW_ADDR` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const ETHER_TAP_HW_ADDR: &str = "00:00:5e:00:53:01";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_IP_ADDR` is never used
[INFO] [stdout]   --> src/main.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const ETHER_TAP_IP_ADDR: &str = "192.0.2.2";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_NETMASK` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const ETHER_TAP_NETMASK: &str = "255.255.255.0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_GATEWAY` is never used
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const DEFAULT_GATEWAY: &str = "192.0.2.1";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_little_endian` is never used
[INFO] [stdout]   --> src/util.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn is_little_endian() -> bool
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `byteswap` is never used
[INFO] [stdout]   --> src/util.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait Byteswap 
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 44 | {
[INFO] [stdout] 45 |     fn byteswap(&self) -> Self
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byteswap` is never used
[INFO] [stdout]   --> src/util.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn byteswap<T>(v: T) -> T
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hton` is never used
[INFO] [stdout]   --> src/util.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn hton<T: Byteswap>(h: T) -> T
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ntoh` is never used
[INFO] [stdout]   --> src/util.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn ntoh<T: Byteswap>(n: T) -> T
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cksum16` is never used
[INFO] [stdout]   --> src/util.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn cksum16() -> u16
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IFNAMSIZ` is never used
[INFO] [stdout]  --> src/net.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const IFNAMSIZ: u16 = 16;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/net.rs:107:36
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn input(&self, dev_type: u16, data: u8, len: u16) -> i8
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_TYPE_LOOPBACK` is never used
[INFO] [stdout]  --> src/net.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const NET_DEVICE_TYPE_LOOPBACK: u16  = 0x0001;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_TYPE_ETHERNET` is never used
[INFO] [stdout]  --> src/net.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const NET_DEVICE_TYPE_ETHERNET: u16  = 0x0002;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_LOOPBACK` is never used
[INFO] [stdout]  --> src/net.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const NET_DEVICE_FLAG_LOOPBACK: u16  = 0x0010;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_BROADCAST` is never used
[INFO] [stdout]  --> src/net.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const NET_DEVICE_FLAG_BROADCAST: u16 = 0x0020;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_P2P` is never used
[INFO] [stdout]  --> src/net.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const NET_DEVICE_FLAG_P2P: u16       = 0x0040;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_NEED_ARP` is never used
[INFO] [stdout]  --> src/net.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const NET_DEVICE_FLAG_NEED_ARP: u16  = 0x0100;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVCIE_ADDR_LEN` is never used
[INFO] [stdout]   --> src/net.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const NET_DEVCIE_ADDR_LEN: u16       =     16;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hlen` and `alen` are never read
[INFO] [stdout]   --> src/net.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct NetDevice { 
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     hlen: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     alen: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `input` is never used
[INFO] [stdout]    --> src/net.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl NetDevice {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn input(&self, dev_type: u16, data: u8, len: u16) -> i8
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mut dummy = driver::dummy::dummy_init();
[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: constant `LOOPBACK_IP_ADDR` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const LOOPBACK_IP_ADDR: &str = "127.0.0.1";
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOOPBACK_NETMASK` is never used
[INFO] [stdout]   --> src/main.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const LOOPBACK_NETMASK: &str = "255.0.0.0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_NAME` is never used
[INFO] [stdout]   --> src/main.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const ETHER_TAP_NAME: &str = "tap0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_HW_ADDR` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const ETHER_TAP_HW_ADDR: &str = "00:00:5e:00:53:01";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_IP_ADDR` is never used
[INFO] [stdout]   --> src/main.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const ETHER_TAP_IP_ADDR: &str = "192.0.2.2";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ETHER_TAP_NETMASK` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const ETHER_TAP_NETMASK: &str = "255.255.255.0";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_GATEWAY` is never used
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const DEFAULT_GATEWAY: &str = "192.0.2.1";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_little_endian` is never used
[INFO] [stdout]   --> src/util.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn is_little_endian() -> bool
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `byteswap` is never used
[INFO] [stdout]   --> src/util.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait Byteswap 
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 44 | {
[INFO] [stdout] 45 |     fn byteswap(&self) -> Self
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byteswap` is never used
[INFO] [stdout]   --> src/util.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn byteswap<T>(v: T) -> T
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hton` is never used
[INFO] [stdout]   --> src/util.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn hton<T: Byteswap>(h: T) -> T
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ntoh` is never used
[INFO] [stdout]   --> src/util.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn ntoh<T: Byteswap>(n: T) -> T
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cksum16` is never used
[INFO] [stdout]   --> src/util.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn cksum16() -> u16
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IFNAMSIZ` is never used
[INFO] [stdout]  --> src/net.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const IFNAMSIZ: u16 = 16;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_TYPE_LOOPBACK` is never used
[INFO] [stdout]  --> src/net.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const NET_DEVICE_TYPE_LOOPBACK: u16  = 0x0001;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_TYPE_ETHERNET` is never used
[INFO] [stdout]  --> src/net.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const NET_DEVICE_TYPE_ETHERNET: u16  = 0x0002;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_LOOPBACK` is never used
[INFO] [stdout]  --> src/net.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const NET_DEVICE_FLAG_LOOPBACK: u16  = 0x0010;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_BROADCAST` is never used
[INFO] [stdout]  --> src/net.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const NET_DEVICE_FLAG_BROADCAST: u16 = 0x0020;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_P2P` is never used
[INFO] [stdout]  --> src/net.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const NET_DEVICE_FLAG_P2P: u16       = 0x0040;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVICE_FLAG_NEED_ARP` is never used
[INFO] [stdout]  --> src/net.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const NET_DEVICE_FLAG_NEED_ARP: u16  = 0x0100;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NET_DEVCIE_ADDR_LEN` is never used
[INFO] [stdout]   --> src/net.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const NET_DEVCIE_ADDR_LEN: u16       =     16;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hlen` and `alen` are never read
[INFO] [stdout]   --> src/net.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct NetDevice { 
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     hlen: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     alen: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `input` is never used
[INFO] [stdout]    --> src/net.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl NetDevice {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn input(&self, dev_type: u16, data: u8, len: u16) -> i8
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.38s
[INFO] running `Command { std: "docker" "inspect" "d250848287746e23ab9b4d3580462ab23ca8d12adf3941222af7c3e378a5e8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d250848287746e23ab9b4d3580462ab23ca8d12adf3941222af7c3e378a5e8b3", kill_on_drop: false }`
[INFO] [stdout] d250848287746e23ab9b4d3580462ab23ca8d12adf3941222af7c3e378a5e8b3