[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] checking fujianbang/rift against master#4c60a0ea5b2385d7400df9db1ad04e96f2a4c154 for 92191_revert
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffujianbang%2Frift" "/workspace/builds/worker-110/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-110/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fujianbang/rift on toolchain 4c60a0ea5b2385d7400df9db1ad04e96f2a4c154
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4c60a0ea5b2385d7400df9db1ad04e96f2a4c154" "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-110/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: "/workspace/cargo-home/bin/cargo" "+4c60a0ea5b2385d7400df9db1ad04e96f2a4c154" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+4c60a0ea5b2385d7400df9db1ad04e96f2a4c154" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37c94ba7a8e67a1b7edb02c37a3696ead6a66ffa5949d28e60326881ebd74d8e
[INFO] running `Command { std: "docker" "start" "-a" "37c94ba7a8e67a1b7edb02c37a3696ead6a66ffa5949d28e60326881ebd74d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37c94ba7a8e67a1b7edb02c37a3696ead6a66ffa5949d28e60326881ebd74d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c94ba7a8e67a1b7edb02c37a3696ead6a66ffa5949d28e60326881ebd74d8e", kill_on_drop: false }`
[INFO] [stdout] 37c94ba7a8e67a1b7edb02c37a3696ead6a66ffa5949d28e60326881ebd74d8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+4c60a0ea5b2385d7400df9db1ad04e96f2a4c154" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c0e507e8f92e064c039c20cb9d9cfefa17316a115105616d903fab17b599d4a
[INFO] running `Command { std: "docker" "start" "-a" "3c0e507e8f92e064c039c20cb9d9cfefa17316a115105616d903fab17b599d4a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking rift v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[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 is never used: `FINGERPRINT`
[INFO] [stdout]  --> src/stun.rs:7:1
[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 is never used: `MAGIC_COOKIE`
[INFO] [stdout]  --> src/stun.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MAGIC_COOKIE: u32 = 0x2112_A442;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/stun.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     attributes: Vec<Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/stun.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(class: MessageClass, method: Method) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `class`
[INFO] [stdout]   --> src/stun.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn class(&self) -> MessageClass {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `method`
[INFO] [stdout]   --> src/stun.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn method(&self) -> Method {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transaction_id`
[INFO] [stdout]   --> src/stun.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn transaction_id(&self) -> &TransactionId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_attribute`
[INFO] [stdout]   --> src/stun.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn add_attribute(&mut self, attr: Attribute) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `attributes`
[INFO] [stdout]   --> src/stun.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn attributes(&self) -> &[Attribute] {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_binary`
[INFO] [stdout]   --> src/stun.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn to_binary(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_u16`
[INFO] [stdout]    --> src/stun.rs:199:8
[INFO] [stdout]     |
[INFO] [stdout] 199 |     fn to_u16(self) -> u16 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/stun.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn new(p: u16) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_u16`
[INFO] [stdout]    --> src/stun.rs:290:8
[INFO] [stdout]     |
[INFO] [stdout] 290 |     fn to_u16(self) -> u16 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/stun.rs:305:8
[INFO] [stdout]     |
[INFO] [stdout] 305 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_bytes`
[INFO] [stdout]    --> src/stun.rs:319:8
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn as_bytes(&self) -> &[u8] {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MappedAddress`
[INFO] [stdout]    --> src/stun.rs:352:8
[INFO] [stdout]     |
[INFO] [stdout] 352 | struct MappedAddress {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `XorMappedAddress`
[INFO] [stdout]    --> src/stun.rs:363:8
[INFO] [stdout]     |
[INFO] [stdout] 363 | struct XorMappedAddress {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ErrorCode`
[INFO] [stdout]    --> src/stun.rs:374:6
[INFO] [stdout]     |
[INFO] [stdout] 374 | enum ErrorCode {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PasswordAlgorithms`
[INFO] [stdout]    --> src/stun.rs:397:8
[INFO] [stdout]     |
[INFO] [stdout] 397 | struct PasswordAlgorithms {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PasswordAlgorithm`
[INFO] [stdout]    --> src/stun.rs:407:8
[INFO] [stdout]     |
[INFO] [stdout] 407 | struct PasswordAlgorithm {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UnknownAttributes`
[INFO] [stdout]    --> src/stun.rs:418:8
[INFO] [stdout]     |
[INFO] [stdout] 418 | struct UnknownAttributes {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Client`
[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 function is never used: `new`
[INFO] [stdout]   --> src/stun_client.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(addr: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `discover`
[INFO] [stdout]   --> src/stun_client.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn discover(&self) -> Result<(), StunError> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `StunError`
[INFO] [stdout]   --> src/stun_client.rs:49:6
[INFO] [stdout]    |
[INFO] [stdout] 49 | enum StunError {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FINGERPRINT`
[INFO] [stdout]  --> src/stun.rs:7:1
[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 is never read: `attributes`
[INFO] [stdout]   --> src/stun.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     attributes: Vec<Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `class`
[INFO] [stdout]   --> src/stun.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn class(&self) -> MessageClass {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `method`
[INFO] [stdout]   --> src/stun.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn method(&self) -> Method {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transaction_id`
[INFO] [stdout]   --> src/stun.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn transaction_id(&self) -> &TransactionId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_attribute`
[INFO] [stdout]   --> src/stun.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn add_attribute(&mut self, attr: Attribute) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `attributes`
[INFO] [stdout]   --> src/stun.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn attributes(&self) -> &[Attribute] {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MappedAddress`
[INFO] [stdout]    --> src/stun.rs:352:8
[INFO] [stdout]     |
[INFO] [stdout] 352 | struct MappedAddress {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `XorMappedAddress`
[INFO] [stdout]    --> src/stun.rs:363:8
[INFO] [stdout]     |
[INFO] [stdout] 363 | struct XorMappedAddress {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ErrorCode`
[INFO] [stdout]    --> src/stun.rs:374:6
[INFO] [stdout]     |
[INFO] [stdout] 374 | enum ErrorCode {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PasswordAlgorithms`
[INFO] [stdout]    --> src/stun.rs:397:8
[INFO] [stdout]     |
[INFO] [stdout] 397 | struct PasswordAlgorithms {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PasswordAlgorithm`
[INFO] [stdout]    --> src/stun.rs:407:8
[INFO] [stdout]     |
[INFO] [stdout] 407 | struct PasswordAlgorithm {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UnknownAttributes`
[INFO] [stdout]    --> src/stun.rs:418:8
[INFO] [stdout]     |
[INFO] [stdout] 418 | struct UnknownAttributes {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unknown`
[INFO] [stdout]   --> src/stun_client.rs:50:5
[INFO] [stdout]    |
[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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c0e507e8f92e064c039c20cb9d9cfefa17316a115105616d903fab17b599d4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0e507e8f92e064c039c20cb9d9cfefa17316a115105616d903fab17b599d4a", kill_on_drop: false }`
[INFO] [stdout] 3c0e507e8f92e064c039c20cb9d9cfefa17316a115105616d903fab17b599d4a