[INFO] fetching crate fftp 0.2.0...
[INFO] checking fftp-0.2.0 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate fftp 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate fftp 0.2.0
[INFO] finished tweaking crates.io crate fftp 0.2.0
[INFO] tweaked toml for crates.io crate fftp 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fftp 0.2.0 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fftp 0.2.0 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wildmatch v1.1.0
[INFO] [stderr]   Downloaded igd v0.12.0
[INFO] [stderr]   Downloaded attohttpc v0.16.3
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9196c830ded00b74aba3b6d7565583309d02e71da1f8a685349ad3fd78606dcb
[INFO] running `Command { std: "docker" "start" "-a" "9196c830ded00b74aba3b6d7565583309d02e71da1f8a685349ad3fd78606dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9196c830ded00b74aba3b6d7565583309d02e71da1f8a685349ad3fd78606dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9196c830ded00b74aba3b6d7565583309d02e71da1f8a685349ad3fd78606dcb", kill_on_drop: false }`
[INFO] [stdout] 9196c830ded00b74aba3b6d7565583309d02e71da1f8a685349ad3fd78606dcb
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf62a1c12e6d3cc2f59f0a41b2cf3c3bfc58e76cda211e4a6fa045dba195b972
[INFO] running `Command { std: "docker" "start" "-a" "bf62a1c12e6d3cc2f59f0a41b2cf3c3bfc58e76cda211e4a6fa045dba195b972", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]     Checking tinyvec v1.5.0
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking tracing v0.1.28
[INFO] [stderr]     Checking xml-rs v0.8.4
[INFO] [stderr]     Checking wildmatch v1.1.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking xmltree v0.10.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking attohttpc v0.16.3
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking futures-util v0.3.17
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking tokio-util v0.6.8
[INFO] [stderr]     Checking h2 v0.3.4
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking hyper v0.14.13
[INFO] [stderr]     Checking igd v0.12.0
[INFO] [stderr]     Checking fftp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `DATA_SIZE` is never used
[INFO] [stdout]   --> src/proto.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub const DATA_SIZE: usize = 4096;
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ConnectionTimeout`, `ImpossibleDataLen`, `UnexpectedType`, and `WrongChecksum` are never constructed
[INFO] [stdout]   --> src/proto.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum Error {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 44 |     ConnectionTimeout,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 45 |     ImpossibleDataLen(u32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 46 |     UnexpectedType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 47 |     WrongChecksum,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` 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 `Listener` is never constructed
[INFO] [stdout]   --> src/proto.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Listener {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `recv` and `send` are never used
[INFO] [stdout]    --> src/proto.rs:125:18
[INFO] [stdout]     |
[INFO] [stdout] 123 | impl Listener {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 124 |     /// Receive a [Request].
[INFO] [stdout] 125 |     pub async fn recv(&mut self) -> Option<(Request, SocketAddr)> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub async fn send(&self, r: (Response, SocketAddr)) -> Result<(), Error> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `start_server` is never used
[INFO] [stdout]    --> src/proto.rs:179:18
[INFO] [stdout]     |
[INFO] [stdout] 145 | impl Transport {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 179 |     pub async fn start_server(self) -> (Listener, JoinHandle<()>) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ConnectionTimeout`, `ImpossibleDataLen`, `UnexpectedType`, and `WrongChecksum` are never constructed
[INFO] [stdout]   --> src/proto.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum Error {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 44 |     ConnectionTimeout,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 45 |     ImpossibleDataLen(u32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 46 |     UnexpectedType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 47 |     WrongChecksum,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Client` is never constructed
[INFO] [stdout]   --> src/proto.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Client {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `recv` and `send` are never used
[INFO] [stdout]    --> src/proto.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 135 | impl Client {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] 136 |     pub async fn recv(&mut self) -> Option<Response> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub async fn send(&self, r: Request) -> Result<(), Error> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `bind_ext` and `start_client` are never used
[INFO] [stdout]    --> src/proto.rs:169:18
[INFO] [stdout]     |
[INFO] [stdout] 145 | impl Transport {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 169 |     pub async fn bind_ext(port: u16) -> Result<Self, Error> {
[INFO] [stdout]     |                  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 |     pub async fn start_client<A: ToSocketAddrs>(
[INFO] [stdout]     |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ConnectionTimeout`, `ImpossibleDataLen`, `UnexpectedType`, and `WrongChecksum` are never constructed
[INFO] [stdout]   --> src/proto.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum Error {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 44 |     ConnectionTimeout,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 45 |     ImpossibleDataLen(u32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 46 |     UnexpectedType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 47 |     WrongChecksum,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Client` is never constructed
[INFO] [stdout]   --> src/proto.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Client {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `recv` and `send` are never used
[INFO] [stdout]    --> src/proto.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 135 | impl Client {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] 136 |     pub async fn recv(&mut self) -> Option<Response> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub async fn send(&self, r: Request) -> Result<(), Error> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `bind_ext` and `start_client` are never used
[INFO] [stdout]    --> src/proto.rs:169:18
[INFO] [stdout]     |
[INFO] [stdout] 145 | impl Transport {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 169 |     pub async fn bind_ext(port: u16) -> Result<Self, Error> {
[INFO] [stdout]     |                  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 |     pub async fn start_client<A: ToSocketAddrs>(
[INFO] [stdout]     |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DATA_SIZE` is never used
[INFO] [stdout]   --> src/proto.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub const DATA_SIZE: usize = 4096;
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ConnectionTimeout`, `ImpossibleDataLen`, `UnexpectedType`, and `WrongChecksum` are never constructed
[INFO] [stdout]   --> src/proto.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum Error {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 44 |     ConnectionTimeout,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 45 |     ImpossibleDataLen(u32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 46 |     UnexpectedType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 47 |     WrongChecksum,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` 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 `Listener` is never constructed
[INFO] [stdout]   --> src/proto.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Listener {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `recv` and `send` are never used
[INFO] [stdout]    --> src/proto.rs:125:18
[INFO] [stdout]     |
[INFO] [stdout] 123 | impl Listener {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 124 |     /// Receive a [Request].
[INFO] [stdout] 125 |     pub async fn recv(&mut self) -> Option<(Request, SocketAddr)> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub async fn send(&self, r: (Response, SocketAddr)) -> Result<(), Error> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `start_server` is never used
[INFO] [stdout]    --> src/proto.rs:179:18
[INFO] [stdout]     |
[INFO] [stdout] 145 | impl Transport {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 179 |     pub async fn start_server(self) -> (Listener, JoinHandle<()>) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.31s
[INFO] running `Command { std: "docker" "inspect" "bf62a1c12e6d3cc2f59f0a41b2cf3c3bfc58e76cda211e4a6fa045dba195b972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf62a1c12e6d3cc2f59f0a41b2cf3c3bfc58e76cda211e4a6fa045dba195b972", kill_on_drop: false }`
[INFO] [stdout] bf62a1c12e6d3cc2f59f0a41b2cf3c3bfc58e76cda211e4a6fa045dba195b972
