[INFO] cloning repository https://github.com/negibokken/toyudp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/negibokken/toyudp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnegibokken%2Ftoyudp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnegibokken%2Ftoyudp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0490aab450dfc246cef761c3c919c2b06bec3295
[INFO] checking negibokken/toyudp against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnegibokken%2Ftoyudp" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/negibokken/toyudp
[INFO] finished tweaking git repo https://github.com/negibokken/toyudp
[INFO] tweaked toml for git repo https://github.com/negibokken/toyudp written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/negibokken/toyudp on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/negibokken/toyudp 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.148
[INFO] [stderr]   Downloaded syn v1.0.105
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dd20bdda7b177301c075f4a1c327eb32b5522b89abbe062ae595d29b066c55f
[INFO] running `Command { std: "docker" "start" "-a" "6dd20bdda7b177301c075f4a1c327eb32b5522b89abbe062ae595d29b066c55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dd20bdda7b177301c075f4a1c327eb32b5522b89abbe062ae595d29b066c55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dd20bdda7b177301c075f4a1c327eb32b5522b89abbe062ae595d29b066c55f", kill_on_drop: false }`
[INFO] [stdout] 6dd20bdda7b177301c075f4a1c327eb32b5522b89abbe062ae595d29b066c55f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bd05d2f973d3a8641c5121f264bd21d08e78b59dea18f4b26bc02b3aa3f08f5
[INFO] running `Command { std: "docker" "start" "-a" "9bd05d2f973d3a8641c5121f264bd21d08e78b59dea18f4b26bc02b3aa3f08f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling tokio v1.22.0
[INFO] [stderr]     Checking parking_lot_core v0.9.5
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling serde v1.0.148
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling serde_json v1.0.89
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking time-core v0.1.0
[INFO] [stderr]     Checking time v0.3.17
[INFO] [stderr]     Checking rand_core v0.6.4
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[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling tokio-macros v1.8.2
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[INFO] [stderr]     Checking futures v0.3.25
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]     Checking tokio-stream v0.1.11
[INFO] [stderr]     Checking toyudp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ToSocketAddrs`
[INFO] [stdout]  --> examples/quic-init.rs:5:28
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::net::{SocketAddr, ToSocketAddrs};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/udp/server.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Server {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn send(&self, data: Datagram) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bytes`, `dest`, and `src` are never read
[INFO] [stdout]  --> src/udp/datagram.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Datagram {
[INFO] [stdout]   |            -------- fields in this struct
[INFO] [stdout] 5 |     pub bytes: Vec<u8>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 6 |     dest: Option<Address>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     src: Option<Address>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Datagram` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dest` and `src` are never used
[INFO] [stdout]   --> src/udp/datagram.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Datagram {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn dest(&self) -> Option<Address> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn src(&self) -> Option<Address> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stream` is never constructed
[INFO] [stdout]  --> src/quic/stream.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Stream {}
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/quic/stream.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Stream {
[INFO] [stdout]   | ----------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn new () -> Stream {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client_key`
[INFO] [stdout]    --> examples/quic-init.rs:221:10
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let (client_key, client_iv, client_hp) =
[INFO] [stdout]     |          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_client_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client_iv`
[INFO] [stdout]    --> examples/quic-init.rs:221:22
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let (client_key, client_iv, client_hp) =
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_client_iv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client_hp`
[INFO] [stdout]    --> examples/quic-init.rs:221:33
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let (client_key, client_iv, client_hp) =
[INFO] [stdout]     |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_client_hp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `server_key`
[INFO] [stdout]    --> examples/quic-init.rs:223:10
[INFO] [stdout]     |
[INFO] [stdout] 223 |     let (server_key, server_iv, server_hp) = get_initial_keys(&initial_salt, &initial_random, true);
[INFO] [stdout]     |          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_server_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `server_iv`
[INFO] [stdout]    --> examples/quic-init.rs:223:22
[INFO] [stdout]     |
[INFO] [stdout] 223 |     let (server_key, server_iv, server_hp) = get_initial_keys(&initial_salt, &initial_random, true);
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_server_iv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `server_hp`
[INFO] [stdout]    --> examples/quic-init.rs:223:33
[INFO] [stdout]     |
[INFO] [stdout] 223 |     let (server_key, server_iv, server_hp) = get_initial_keys(&initial_salt, &initial_random, true);
[INFO] [stdout]     |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_server_hp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]    --> examples/quic-init.rs:251:13
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let msg = rx.recv().unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_server` is never used
[INFO] [stdout]    --> examples/quic-init.rs:179:4
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn run_server() -> Arc<UdpSocket> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_client` is never used
[INFO] [stdout]    --> examples/quic-init.rs:197:4
[INFO] [stdout]     |
[INFO] [stdout] 197 | fn run_client(server_address: SocketAddr) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time`
[INFO] [stdout]  --> examples/sandbox.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::to_string_pretty`
[INFO] [stdout]   --> examples/sandbox.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde_json::to_string_pretty;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/udp/server.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Server {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn send(&self, data: Datagram) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bytes`, `dest`, and `src` are never read
[INFO] [stdout]  --> src/udp/datagram.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Datagram {
[INFO] [stdout]   |            -------- fields in this struct
[INFO] [stdout] 5 |     pub bytes: Vec<u8>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 6 |     dest: Option<Address>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     src: Option<Address>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Datagram` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dest` and `src` are never used
[INFO] [stdout]   --> src/udp/datagram.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Datagram {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn dest(&self) -> Option<Address> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn src(&self) -> Option<Address> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stream` is never constructed
[INFO] [stdout]  --> src/quic/stream.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Stream {}
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/quic/stream.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Stream {
[INFO] [stdout]   | ----------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn new () -> Stream {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_mul` is never used
[INFO] [stdout]   --> examples/sandbox.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn add_mul(x: f64, y: f64) -> (f64, f64) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `copy`, `set_first_name`, and `to_tuple` are never used
[INFO] [stdout]   --> examples/sandbox.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Person {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn copy(&self) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn set_first_name(&mut self, name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     fn to_tuple(self) -> (String,String) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `s` is never read
[INFO] [stdout]   --> examples/sandbox.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct A <'a> {
[INFO] [stdout]    |        - field in this struct
[INFO] [stdout] 53 |     s: &'a str,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `A` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `how` is never used
[INFO] [stdout]   --> examples/sandbox.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn how(i: u32) -> &'static str {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_str` is never used
[INFO] [stdout]    --> examples/sandbox.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | impl Direction {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] 124 |     fn as_str(&self) -> &'static str {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Medium` and `Fast` are never constructed
[INFO] [stdout]    --> examples/sandbox.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 145 | enum Speed {
[INFO] [stdout]     |      ----- variants in this enum
[INFO] [stdout] 146 |     Slow = 10,
[INFO] [stdout] 147 |     Medium = 20,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 148 |     Fast = 50
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Difficulty` is never used
[INFO] [stdout]    --> examples/sandbox.rs:151:6
[INFO] [stdout]     |
[INFO] [stdout] 151 | enum Difficulty {
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_tuple` is never used
[INFO] [stdout]    --> examples/sandbox.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn match_tuple(t: (i32, String)) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.61s
[INFO] running `Command { std: "docker" "inspect" "9bd05d2f973d3a8641c5121f264bd21d08e78b59dea18f4b26bc02b3aa3f08f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bd05d2f973d3a8641c5121f264bd21d08e78b59dea18f4b26bc02b3aa3f08f5", kill_on_drop: false }`
[INFO] [stdout] 9bd05d2f973d3a8641c5121f264bd21d08e78b59dea18f4b26bc02b3aa3f08f5
