[INFO] cloning repository https://github.com/Demindiro/stupid-tunnel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Demindiro/stupid-tunnel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDemindiro%2Fstupid-tunnel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDemindiro%2Fstupid-tunnel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfa49694e142f58aaeedb853f61fa04db7951524
[INFO] checking Demindiro/stupid-tunnel against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDemindiro%2Fstupid-tunnel" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Demindiro/stupid-tunnel on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Demindiro/stupid-tunnel
[INFO] finished tweaking git repo https://github.com/Demindiro/stupid-tunnel
[INFO] tweaked toml for git repo https://github.com/Demindiro/stupid-tunnel written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Demindiro/stupid-tunnel 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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d877b44942f1fb130b435904f68bf0b498579755b92e19369c16b09113f687d
[INFO] running `Command { std: "docker" "start" "-a" "6d877b44942f1fb130b435904f68bf0b498579755b92e19369c16b09113f687d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d877b44942f1fb130b435904f68bf0b498579755b92e19369c16b09113f687d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d877b44942f1fb130b435904f68bf0b498579755b92e19369c16b09113f687d", kill_on_drop: false }`
[INFO] [stdout] 6d877b44942f1fb130b435904f68bf0b498579755b92e19369c16b09113f687d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cb7588f699fb18195f8d62447a7495c8ed486a25121462b11a80a8fd5754f19
[INFO] running `Command { std: "docker" "start" "-a" "2cb7588f699fb18195f8d62447a7495c8ed486a25121462b11a80a8fd5754f19", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking stupid_tunnel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Ipv4Addr`
[INFO] [stdout]  --> src/server.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::net::{SocketAddr, SocketAddrV4, Ipv4Addr};
[INFO] [stdout]   |                                          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ipv4Addr`
[INFO] [stdout]  --> src/stupid/mod.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::net::{Ipv4Addr, SocketAddrV4};
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ipv4Addr`
[INFO] [stdout]  --> src/server.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::net::{SocketAddr, SocketAddrV4, Ipv4Addr};
[INFO] [stdout]   |                                          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ipv4Addr`
[INFO] [stdout]  --> src/stupid/mod.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::net::{Ipv4Addr, SocketAddrV4};
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 3 arguments but 5 arguments were supplied
[INFO] [stdout]    --> src/udp.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let udp = UDPHeader::new_ipv6(src, 232, dst, 244, b"gutentag").unwrap();
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ ---  ---  ---  --- unexpected argument #4 of type `{integer}`
[INFO] [stdout]     |                                       |    |    |
[INFO] [stdout]     |                                       |    |    unexpected argument #3 of type `std::net::Ipv6Addr`
[INFO] [stdout]     |                                       |    expected `SocketAddrV6`, found integer
[INFO] [stdout]     |                                       expected `SocketAddrV6`, found `Ipv6Addr`
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> src/udp.rs:27:9
[INFO] [stdout]     |
[INFO] [stdout] 27  |     pub fn new_ipv6(source: SocketAddrV6, destination: SocketAddrV6, data: &[u8]) -> Result<Self, ChecksumError> {
[INFO] [stdout]     |            ^^^^^^^^ --------------------  -------------------------  -----------
[INFO] [stdout] help: remove the extra arguments
[INFO] [stdout]     |
[INFO] [stdout] 118 -         let udp = UDPHeader::new_ipv6(src, 232, dst, 244, b"gutentag").unwrap();
[INFO] [stdout] 118 +         let udp = UDPHeader::new_ipv6(/* SocketAddrV6 */, /* SocketAddrV6 */, b"gutentag").unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/client.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 |                         let k = (
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/client.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 |                         let k = (
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/udp.rs:16:36
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn from_raw_ipv6(data: &[u8], source: Ipv6Addr, destination: Ipv6Addr) -> Result<(Self, &[u8]), FromRawError> {
[INFO] [stdout]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `destination`
[INFO] [stdout]   --> src/udp.rs:16:54
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn from_raw_ipv6(data: &[u8], source: Ipv6Addr, destination: Ipv6Addr) -> Result<(Self, &[u8]), FromRawError> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]   --> src/udp.rs:65:11
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut sum = 0usize;
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/udp.rs:65:7
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut sum = 0usize;
[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: `source`
[INFO] [stdout]   --> src/udp.rs:16:36
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn from_raw_ipv6(data: &[u8], source: Ipv6Addr, destination: Ipv6Addr) -> Result<(Self, &[u8]), FromRawError> {
[INFO] [stdout]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `destination`
[INFO] [stdout]   --> src/udp.rs:16:54
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn from_raw_ipv6(data: &[u8], source: Ipv6Addr, destination: Ipv6Addr) -> Result<(Self, &[u8]), FromRawError> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]   --> src/udp.rs:65:11
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut sum = 0usize;
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/udp.rs:65:7
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut sum = 0usize;
[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: unnecessary `unsafe` block
[INFO] [stdout]   --> src/stupid/mod.rs:60:3
[INFO] [stdout]    |
[INFO] [stdout] 60 |         unsafe { Ok((h, d, e)) }
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/tcp/header.rs:23:36
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn from_raw_ipv6(data: &[u8], source: Ipv6Addr, destination: Ipv6Addr) -> Result<(&Self, Options, &[u8]), FromRawError> {
[INFO] [stdout]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `destination`
[INFO] [stdout]   --> src/tcp/header.rs:23:54
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn from_raw_ipv6(data: &[u8], source: Ipv6Addr, destination: Ipv6Addr) -> Result<(&Self, Options, &[u8]), FromRawError> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/stupid/mod.rs:60:3
[INFO] [stdout]    |
[INFO] [stdout] 60 |         unsafe { Ok((h, d, e)) }
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/tcp/header.rs:23:36
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn from_raw_ipv6(data: &[u8], source: Ipv6Addr, destination: Ipv6Addr) -> Result<(&Self, Options, &[u8]), FromRawError> {
[INFO] [stdout]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `destination`
[INFO] [stdout]   --> src/tcp/header.rs:23:54
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn from_raw_ipv6(data: &[u8], source: Ipv6Addr, destination: Ipv6Addr) -> Result<(&Self, Options, &[u8]), FromRawError> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stdout] warning: field `ipv6_prefix` is never read
[INFO] [stdout]  --> src/client.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Client {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 8 |     pub ipv6_prefix: [u8; 12],
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/client.rs:238:15
[INFO] [stdout]     |
[INFO] [stdout] 238 |     ConnectError(std::io::Error),
[INFO] [stdout]     |     ------------ ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RunError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 238 |     ConnectError(()),
[INFO] [stdout]     |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_raw` is never used
[INFO] [stdout]   --> src/icmp.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ICMPv6Header {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn from_raw(data: &[u8]) -> Result<(Self, &[u8]), RawHeaderError> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RawHeaderError` is never used
[INFO] [stdout]   --> src/icmp.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub enum RawHeaderError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RawHeaderError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ip.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |     BadVersion(u8),
[INFO] [stdout]     |     ---------- ^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FromRawError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 120 |     BadVersion(()),
[INFO] [stdout]     |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `checksum` is never used
[INFO] [stdout]   --> src/udp.rs:51:14
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl UDPHeader {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 51 |     from_be_fn!(checksum, u16);
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `from_be_fn` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BadChecksum` is never constructed
[INFO] [stdout]    --> src/udp.rs:101:2
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub enum FromRawError {
[INFO] [stdout]     |          ------------ variant in this enum
[INFO] [stdout] 101 |     BadChecksum,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FromRawError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/server.rs:171:7
[INFO] [stdout]     |
[INFO] [stdout] 171 |     Bind(Error),
[INFO] [stdout]     |     ---- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RunError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 171 |     Bind(()),
[INFO] [stdout]     |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/server.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |     Accept(Error),
[INFO] [stdout]     |     ------ ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RunError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 172 |     Accept(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_urgent` and `set_push` are never used
[INFO] [stdout]    --> src/tcp/header.rs:159:28
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl Flags {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 159 |     flag!(URGENT = 5, urgent, set_urgent);
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout] 160 |     flag!(ACKNOWLEDGE = 4, acknowledge, set_acknowledge);
[INFO] [stdout] 161 |     flag!(PUSH = 3, push, set_push);
[INFO] [stdout]     |                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `flag` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `iter`, and `byte_len` are never used
[INFO] [stdout]    --> src/tcp/header.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 188 | impl<'a> Options<'a> {
[INFO] [stdout]     | -------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 191 |     pub fn new(options: impl Iterator<Item = OptionData>, buf: &'a mut [u8]) -> Result<Self, ()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 |     pub fn iter(&self) -> OptionsIter<'a> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 224 |     pub fn byte_len(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/tcp/header.rs:264:21
[INFO] [stdout]     |
[INFO] [stdout] 264 |     MaximumSegmentSize(u16),
[INFO] [stdout]     |     ------------------ ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptionData` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 264 |     MaximumSegmentSize(()),
[INFO] [stdout]     |                        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `time` and `echo` are never read
[INFO] [stdout]    --> src/tcp/header.rs:268:3
[INFO] [stdout]     |
[INFO] [stdout] 267 |     Timestamp {
[INFO] [stdout]     |     --------- fields in this variant
[INFO] [stdout] 268 |         time: u32,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 269 |         echo: u32,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptionData` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `SelectiveAcknowledgement` and `WindowScale` are never constructed
[INFO] [stdout]    --> src/tcp/header.rs:266:2
[INFO] [stdout]     |
[INFO] [stdout] 262 | pub enum OptionData {
[INFO] [stdout]     |          ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 266 |     SelectiveAcknowledgement(SACK),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 271 |     WindowScale(u8),
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptionData` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `N1`, `N2`, `N3`, and `N4` are never constructed
[INFO] [stdout]    --> src/tcp/header.rs:276:2
[INFO] [stdout]     |
[INFO] [stdout] 275 | pub enum SACK {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] 276 |     N1(u32),
[INFO] [stdout]     |     ^^
[INFO] [stdout] 277 |     N2(u32, u32),
[INFO] [stdout]     |     ^^
[INFO] [stdout] 278 |     N3(u32, u32, u32),
[INFO] [stdout]     |     ^^
[INFO] [stdout] 279 |     N4(u32, u32, u32, u32),
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SACK` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BadChecksum` is never constructed
[INFO] [stdout]    --> src/tcp/header.rs:312:2
[INFO] [stdout]     |
[INFO] [stdout] 311 | pub enum FromRawError {
[INFO] [stdout]     |          ------------ variant in this enum
[INFO] [stdout] 312 |     BadChecksum,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FromRawError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tcp6HeaderBuilder` is never constructed
[INFO] [stdout]    --> src/tcp/header.rs:317:12
[INFO] [stdout]     |
[INFO] [stdout] 317 | pub struct Tcp6HeaderBuilder<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stupid_tunnel` (bin "stupid_tunnel" test) due to 1 previous error; 10 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2cb7588f699fb18195f8d62447a7495c8ed486a25121462b11a80a8fd5754f19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cb7588f699fb18195f8d62447a7495c8ed486a25121462b11a80a8fd5754f19", kill_on_drop: false }`
[INFO] [stdout] 2cb7588f699fb18195f8d62447a7495c8ed486a25121462b11a80a8fd5754f19
