[INFO] updating cached repository chryoung/udplinktest
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chryoung/udplinktest
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chryoung/udplinktest" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/chryoung/udplinktest"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/chryoung/udplinktest'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chryoung/udplinktest" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/chryoung/udplinktest"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/chryoung/udplinktest'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6216eac001c29fb42d1050ce0081ef3cf91a5f71
[INFO] sha for GitHub repo chryoung/udplinktest: 6216eac001c29fb42d1050ce0081ef3cf91a5f71
[INFO] validating manifest of chryoung/udplinktest on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chryoung/udplinktest on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chryoung/udplinktest
[INFO] finished frobbing chryoung/udplinktest
[INFO] frobbed toml for chryoung/udplinktest written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/chryoung/udplinktest/Cargo.toml
[INFO] started frobbing chryoung/udplinktest
[INFO] finished frobbing chryoung/udplinktest
[INFO] frobbed toml for chryoung/udplinktest written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/chryoung/udplinktest/Cargo.toml
[INFO] crate chryoung/udplinktest already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking chryoung/udplinktest against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-5/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/chryoung/udplinktest:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5817ac6f8fecd497886575568a8b5e22e183e10c8e54de9c66041560deea6ec1
[INFO] running `"docker" "start" "-a" "5817ac6f8fecd497886575568a8b5e22e183e10c8e54de9c66041560deea6ec1"`
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking block-buffer v0.7.0
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]    Compiling curve25519-dalek v1.1.3
[INFO] [stderr]     Checking x25519-dalek v0.5.2
[INFO] [stderr]     Checking udplinktest v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]  --> src/server/udp.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stderr]   |            ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]  --> src/server/udp.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stderr]   |                        ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_buffer`
[INFO] [stderr]    --> src/packets/netserde.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn get_buffer<'a>(&'a self) -> &'a Vec<u8> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_syn`
[INFO] [stderr]   --> src/packets/packet.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn is_syn(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_ack`
[INFO] [stderr]   --> src/packets/packet.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn is_ack(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_fin`
[INFO] [stderr]   --> src/packets/packet.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn is_fin(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_key_syn`
[INFO] [stderr]   --> src/packets/packet.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn is_key_syn(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_key_ack`
[INFO] [stderr]   --> src/packets/packet.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn is_key_ack(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_challenge_syn`
[INFO] [stderr]   --> src/packets/packet.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn is_challenge_syn(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_challenge_ack`
[INFO] [stderr]   --> src/packets/packet.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn is_challenge_ack(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `timestamp`
[INFO] [stderr]   --> src/packets/packet.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn timestamp(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `size`
[INFO] [stderr]   --> src/packets/packet.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn size() -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `KeyExchangePacket`
[INFO] [stderr]    --> src/packets/packet.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | pub struct KeyExchangePacket {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_syn`
[INFO] [stderr]    --> src/packets/packet.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     pub fn create_syn() -> (KeyExchangePacket, x25519_dalek::EphemeralSecret) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_ack`
[INFO] [stderr]    --> src/packets/packet.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn create_ack(encryptor: &mut impl Encryptor, client_key: &[u8]) -> KeyExchangePacket {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_challenge_syn`
[INFO] [stderr]    --> src/packets/packet.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn create_challenge_syn(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_challenge_ack`
[INFO] [stderr]    --> src/packets/packet.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn create_challenge_ack(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/server/udp.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Statistics`
[INFO] [stderr]  --> src/server/session.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Statistics {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Key`
[INFO] [stderr]   --> src/server/session.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Key {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Session`
[INFO] [stderr]   --> src/server/session.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct Session {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]  --> src/server/udp.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stderr]   |            ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]  --> src/server/udp.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stderr]   |                        ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_syn`
[INFO] [stderr]   --> src/packets/packet.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn is_syn(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_ack`
[INFO] [stderr]   --> src/packets/packet.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn is_ack(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_fin`
[INFO] [stderr]   --> src/packets/packet.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn is_fin(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_key_syn`
[INFO] [stderr]   --> src/packets/packet.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn is_key_syn(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_key_ack`
[INFO] [stderr]   --> src/packets/packet.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn is_key_ack(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_challenge_syn`
[INFO] [stderr]   --> src/packets/packet.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn is_challenge_syn(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_challenge_ack`
[INFO] [stderr]   --> src/packets/packet.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn is_challenge_ack(flag: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `size`
[INFO] [stderr]   --> src/packets/packet.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn size() -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `KeyExchangePacket`
[INFO] [stderr]    --> src/packets/packet.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | pub struct KeyExchangePacket {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_syn`
[INFO] [stderr]    --> src/packets/packet.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     pub fn create_syn() -> (KeyExchangePacket, x25519_dalek::EphemeralSecret) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_ack`
[INFO] [stderr]    --> src/packets/packet.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn create_ack(encryptor: &mut impl Encryptor, client_key: &[u8]) -> KeyExchangePacket {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_challenge_syn`
[INFO] [stderr]    --> src/packets/packet.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn create_challenge_syn(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_challenge_ack`
[INFO] [stderr]    --> src/packets/packet.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn create_challenge_ack(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/server/udp.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Statistics`
[INFO] [stderr]  --> src/server/session.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Statistics {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Key`
[INFO] [stderr]   --> src/server/session.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Key {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Session`
[INFO] [stderr]   --> src/server/session.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct Session {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.02s
[INFO] running `"docker" "inspect" "5817ac6f8fecd497886575568a8b5e22e183e10c8e54de9c66041560deea6ec1"`
[INFO] running `"docker" "rm" "-f" "5817ac6f8fecd497886575568a8b5e22e183e10c8e54de9c66041560deea6ec1"`
[INFO] [stdout] 5817ac6f8fecd497886575568a8b5e22e183e10c8e54de9c66041560deea6ec1