[INFO] cloning repository https://github.com/fujianbang/rift
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fujianbang/rift" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffujianbang%2Frift", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffujianbang%2Frift'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9673a2132cfde9a06e39f444cbdde2863a4c6688
[INFO] testing fujianbang/rift against master#23949593103d03a82c7ebc2e84434ce6c6edc561 for pr-115235-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffujianbang%2Frift" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fujianbang/rift on toolchain 23949593103d03a82c7ebc2e84434ce6c6edc561
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fujianbang/rift
[INFO] finished tweaking git repo https://github.com/fujianbang/rift
[INFO] tweaked toml for git repo https://github.com/fujianbang/rift written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fujianbang/rift 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" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bd2dee8164ece233965115a2e7de5df1317d3b7330931df66e7a620b757e250
[INFO] running `Command { std: "docker" "start" "-a" "5bd2dee8164ece233965115a2e7de5df1317d3b7330931df66e7a620b757e250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bd2dee8164ece233965115a2e7de5df1317d3b7330931df66e7a620b757e250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bd2dee8164ece233965115a2e7de5df1317d3b7330931df66e7a620b757e250", kill_on_drop: false }`
[INFO] [stdout] 5bd2dee8164ece233965115a2e7de5df1317d3b7330931df66e7a620b757e250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edfe53253b6fd8199393b9ca8f60c703fa13db548065c30edcbd382fd4d8092d
[INFO] running `Command { std: "docker" "start" "-a" "edfe53253b6fd8199393b9ca8f60c703fa13db548065c30edcbd382fd4d8092d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling rift v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::Message`
[INFO] [stdout]    --> src/stun.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     use crate::Message;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MessageClass`, `MessageType`, `Method`
[INFO] [stdout]    --> src/stun.rs:225:23
[INFO] [stdout]     |
[INFO] [stdout] 225 |     use crate::stun::{MessageClass, MessageType, Method};
[INFO] [stdout]     |                       ^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FINGERPRINT` is never used
[INFO] [stdout]  --> src/stun.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const FINGERPRINT: i32 = 0x5354554e;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGIC_COOKIE` is never used
[INFO] [stdout]  --> src/stun.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MAGIC_COOKIE: u32 = 0x2112_A442;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attributes` is never read
[INFO] [stdout]   --> src/stun.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Message {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 33 |     attributes: Vec<Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/stun.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Message {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 37 |     /// Returns a new Message
[INFO] [stdout] 38 |     pub fn new(class: MessageClass, method: Method) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn class(&self) -> MessageClass {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn method(&self) -> Method {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn transaction_id(&self) -> &TransactionId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn add_attribute(&mut self, attr: Attribute) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn attributes(&self) -> &[Attribute] {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn to_binary(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_u16` is never used
[INFO] [stdout]    --> src/stun.rs:199:8
[INFO] [stdout]     |
[INFO] [stdout] 198 | impl MessageType {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] 199 |     fn to_u16(self) -> u16 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `to_u16` are never used
[INFO] [stdout]    --> src/stun.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 285 | impl Method {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 286 |     pub fn new(p: u16) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 290 |     fn to_u16(self) -> u16 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `as_bytes` are never used
[INFO] [stdout]    --> src/stun.rs:305:8
[INFO] [stdout]     |
[INFO] [stdout] 304 | impl TransactionId {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 305 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 319 |     fn as_bytes(&self) -> &[u8] {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MappedAddress` is never constructed
[INFO] [stdout]    --> src/stun.rs:352:8
[INFO] [stdout]     |
[INFO] [stdout] 352 | struct MappedAddress {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `XorMappedAddress` is never constructed
[INFO] [stdout]    --> src/stun.rs:363:8
[INFO] [stdout]     |
[INFO] [stdout] 363 | struct XorMappedAddress {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ErrorCode` is never used
[INFO] [stdout]    --> src/stun.rs:374:6
[INFO] [stdout]     |
[INFO] [stdout] 374 | enum ErrorCode {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PasswordAlgorithms` is never constructed
[INFO] [stdout]    --> src/stun.rs:397:8
[INFO] [stdout]     |
[INFO] [stdout] 397 | struct PasswordAlgorithms {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PasswordAlgorithm` is never constructed
[INFO] [stdout]    --> src/stun.rs:407:8
[INFO] [stdout]     |
[INFO] [stdout] 407 | struct PasswordAlgorithm {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnknownAttributes` is never constructed
[INFO] [stdout]    --> src/stun.rs:418:8
[INFO] [stdout]     |
[INFO] [stdout] 418 | struct UnknownAttributes {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Client` is never constructed
[INFO] [stdout]  --> src/stun_client.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Client {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `discover` are never used
[INFO] [stdout]   --> src/stun_client.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Client {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 11 |     fn new(addr: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn discover(&self) -> Result<(), StunError> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StunError` is never used
[INFO] [stdout]   --> src/stun_client.rs:49:6
[INFO] [stdout]    |
[INFO] [stdout] 49 | enum StunError {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.72s
[INFO] running `Command { std: "docker" "inspect" "edfe53253b6fd8199393b9ca8f60c703fa13db548065c30edcbd382fd4d8092d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edfe53253b6fd8199393b9ca8f60c703fa13db548065c30edcbd382fd4d8092d", kill_on_drop: false }`
[INFO] [stdout] edfe53253b6fd8199393b9ca8f60c703fa13db548065c30edcbd382fd4d8092d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42384bfde145b9ae804fd963a6cef4b7e8c623ba87bb7718aa2d6cb676492fe2
[INFO] running `Command { std: "docker" "start" "-a" "42384bfde145b9ae804fd963a6cef4b7e8c623ba87bb7718aa2d6cb676492fe2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rift v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `FINGERPRINT` is never used
[INFO] [stdout]  --> src/stun.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const FINGERPRINT: i32 = 0x5354554e;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attributes` is never read
[INFO] [stdout]   --> src/stun.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Message {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 33 |     attributes: Vec<Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `class`, `method`, `transaction_id`, `add_attribute`, and `attributes` are never used
[INFO] [stdout]   --> src/stun.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Message {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn class(&self) -> MessageClass {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn method(&self) -> Method {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn transaction_id(&self) -> &TransactionId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn add_attribute(&mut self, attr: Attribute) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn attributes(&self) -> &[Attribute] {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MappedAddress` is never constructed
[INFO] [stdout]    --> src/stun.rs:352:8
[INFO] [stdout]     |
[INFO] [stdout] 352 | struct MappedAddress {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `XorMappedAddress` is never constructed
[INFO] [stdout]    --> src/stun.rs:363:8
[INFO] [stdout]     |
[INFO] [stdout] 363 | struct XorMappedAddress {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ErrorCode` is never used
[INFO] [stdout]    --> src/stun.rs:374:6
[INFO] [stdout]     |
[INFO] [stdout] 374 | enum ErrorCode {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PasswordAlgorithms` is never constructed
[INFO] [stdout]    --> src/stun.rs:397:8
[INFO] [stdout]     |
[INFO] [stdout] 397 | struct PasswordAlgorithms {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PasswordAlgorithm` is never constructed
[INFO] [stdout]    --> src/stun.rs:407:8
[INFO] [stdout]     |
[INFO] [stdout] 407 | struct PasswordAlgorithm {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnknownAttributes` is never constructed
[INFO] [stdout]    --> src/stun.rs:418:8
[INFO] [stdout]     |
[INFO] [stdout] 418 | struct UnknownAttributes {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unknown` is never constructed
[INFO] [stdout]   --> src/stun_client.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | enum StunError {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 50 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/stun_client.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     c.discover();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let _ = c.discover();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "42384bfde145b9ae804fd963a6cef4b7e8c623ba87bb7718aa2d6cb676492fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42384bfde145b9ae804fd963a6cef4b7e8c623ba87bb7718aa2d6cb676492fe2", kill_on_drop: false }`
[INFO] [stdout] 42384bfde145b9ae804fd963a6cef4b7e8c623ba87bb7718aa2d6cb676492fe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5559359d34b6fb21c377f77c5933a6cffc87dde97985b17d8218f257b7338a8d
[INFO] running `Command { std: "docker" "start" "-a" "5559359d34b6fb21c377f77c5933a6cffc87dde97985b17d8218f257b7338a8d", kill_on_drop: false }`
[INFO] [stderr] warning: constant `FINGERPRINT` is never used
[INFO] [stderr]  --> src/stun.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const FINGERPRINT: i32 = 0x5354554e;
[INFO] [stderr]   |       ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `attributes` is never read
[INFO] [stderr]   --> src/stun.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct Message {
[INFO] [stderr]    |            ------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 33 |     attributes: Vec<Attribute>,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `class`, `method`, `transaction_id`, `add_attribute`, and `attributes` are never used
[INFO] [stderr]   --> src/stun.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | impl Message {
[INFO] [stderr]    | ------------ methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 50 |     fn class(&self) -> MessageClass {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 55 |     fn method(&self) -> Method {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     fn transaction_id(&self) -> &TransactionId {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 65 |     fn add_attribute(&mut self, attr: Attribute) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 70 |     fn attributes(&self) -> &[Attribute] {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MappedAddress` is never constructed
[INFO] [stderr]    --> src/stun.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 | struct MappedAddress {}
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `XorMappedAddress` is never constructed
[INFO] [stderr]    --> src/stun.rs:363:8
[INFO] [stderr]     |
[INFO] [stderr] 363 | struct XorMappedAddress {}
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ErrorCode` is never used
[INFO] [stderr]    --> src/stun.rs:374:6
[INFO] [stderr]     |
[INFO] [stderr] 374 | enum ErrorCode {
[INFO] [stderr]     |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PasswordAlgorithms` is never constructed
[INFO] [stderr]    --> src/stun.rs:397:8
[INFO] [stderr]     |
[INFO] [stderr] 397 | struct PasswordAlgorithms {}
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PasswordAlgorithm` is never constructed
[INFO] [stderr]    --> src/stun.rs:407:8
[INFO] [stderr]     |
[INFO] [stderr] 407 | struct PasswordAlgorithm {}
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `UnknownAttributes` is never constructed
[INFO] [stderr]    --> src/stun.rs:418:8
[INFO] [stderr]     |
[INFO] [stderr] 418 | struct UnknownAttributes {}
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Unknown` is never constructed
[INFO] [stderr]   --> src/stun_client.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | enum StunError {
[INFO] [stderr]    |      --------- variant in this enum
[INFO] [stderr] 50 |     Unknown,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/stun_client.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     c.discover();
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let _ = c.discover();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rift` (bin "rift" test) generated 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rift-6453d83a1f770cb4)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test stun::test::message_class ... ok
[INFO] [stdout] test stun::test::message_type ... ok
[INFO] [stdout] test stun::test_message::message_from ... ok
[INFO] [stdout] test stun::transaction_id ... ok
[INFO] [stdout] test stun_client::test_discover ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5559359d34b6fb21c377f77c5933a6cffc87dde97985b17d8218f257b7338a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5559359d34b6fb21c377f77c5933a6cffc87dde97985b17d8218f257b7338a8d", kill_on_drop: false }`
[INFO] [stdout] 5559359d34b6fb21c377f77c5933a6cffc87dde97985b17d8218f257b7338a8d