[INFO] fetching crate bitcoin-sock 0.1.16-alpha.0...
[INFO] checking bitcoin-sock-0.1.16-alpha.0 against master#18a6d911caba59605eb03db1452848a85d2e5879 for pr-112743
[INFO] extracting crate bitcoin-sock 0.1.16-alpha.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate bitcoin-sock 0.1.16-alpha.0 on toolchain 18a6d911caba59605eb03db1452848a85d2e5879
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoin-sock 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoin-sock 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoin-sock 0.1.16-alpha.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitcoin-sync v0.1.16-alpha.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55293c00362a3bb96218a11bb11e7c0e46ca4f7e76a504d2de680396911f891e
[INFO] running `Command { std: "docker" "start" "-a" "55293c00362a3bb96218a11bb11e7c0e46ca4f7e76a504d2de680396911f891e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55293c00362a3bb96218a11bb11e7c0e46ca4f7e76a504d2de680396911f891e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55293c00362a3bb96218a11bb11e7c0e46ca4f7e76a504d2de680396911f891e", kill_on_drop: false }`
[INFO] [stdout] 55293c00362a3bb96218a11bb11e7c0e46ca4f7e76a504d2de680396911f891e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6946d83e2e37bd46e319b3949f09d336facede48443339c9e53f0037d76831bf
[INFO] running `Command { std: "docker" "start" "-a" "6946d83e2e37bd46e319b3949f09d336facede48443339c9e53f0037d76831bf", kill_on_drop: false }`
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[INFO] [stderr]     Checking serde-big-array v0.4.1
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[INFO] [stderr]     Checking libevent v0.1.0
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[INFO] [stderr]     Checking bitcoin-imports v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-cfg v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-derive v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-sync v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-sock v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/sock.rs:321:40
[INFO] [stdout]     |
[INFO] [stdout] 321 | #[inline] pub fn io_error_is_permanent(err: i32) -> bool {
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/sock.rs:349:13
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn from(s: CSocket) -> Self {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/sock.rs:368:35
[INFO] [stdout]     |
[INFO] [stdout] 368 |     pub fn assign_from(&mut self, other: Sock) -> &mut Sock {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/sock.rs:406:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |         data:  *const c_void,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/sock.rs:407:9
[INFO] [stdout]     |
[INFO] [stdout] 407 |         len:   usize,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/sock.rs:408:9
[INFO] [stdout]     |
[INFO] [stdout] 408 |         flags: i32) -> isize {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/sock.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |         buf:   *mut c_void,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/sock.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         len:   usize,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/sock.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 419 |         flags: i32) -> isize {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/sock.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |         addr:     *const SocketAddr,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr_len`
[INFO] [stdout]    --> src/sock.rs:429:9
[INFO] [stdout]     |
[INFO] [stdout] 429 |         addr_len: libc::socklen_t) -> i32 {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_addr_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/sock.rs:438:9
[INFO] [stdout]     |
[INFO] [stdout] 438 |         level:    i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt_name`
[INFO] [stdout]    --> src/sock.rs:439:9
[INFO] [stdout]     |
[INFO] [stdout] 439 |         opt_name: i32,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opt_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt_val`
[INFO] [stdout]    --> src/sock.rs:440:9
[INFO] [stdout]     |
[INFO] [stdout] 440 |         opt_val:  *mut c_void,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opt_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt_len`
[INFO] [stdout]    --> src/sock.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |         opt_len:  *mut libc::socklen_t) -> i32 {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opt_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timeout`
[INFO] [stdout]    --> src/sock.rs:450:9
[INFO] [stdout]     |
[INFO] [stdout] 450 |         timeout:   Instant /* millis */,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `requested`
[INFO] [stdout]    --> src/sock.rs:451:9
[INFO] [stdout]     |
[INFO] [stdout] 451 |         requested: SockEvent,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_requested`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `occurred`
[INFO] [stdout]    --> src/sock.rs:452:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |         occurred:  *mut SockEvent) -> bool {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_occurred`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/sock.rs:522:9
[INFO] [stdout]     |
[INFO] [stdout] 522 |         data:      &String,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timeout`
[INFO] [stdout]    --> src/sock.rs:523:9
[INFO] [stdout]     |
[INFO] [stdout] 523 |         timeout:   Instant /* millis */,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interrupt`
[INFO] [stdout]    --> src/sock.rs:524:9
[INFO] [stdout]     |
[INFO] [stdout] 524 |         interrupt: &mut ThreadInterrupt)  {
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interrupt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `terminator`
[INFO] [stdout]    --> src/sock.rs:567:9
[INFO] [stdout]     |
[INFO] [stdout] 567 |         terminator: u8,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_terminator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timeout`
[INFO] [stdout]    --> src/sock.rs:568:9
[INFO] [stdout]     |
[INFO] [stdout] 568 |         timeout:    Instant /* millis */,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interrupt`
[INFO] [stdout]    --> src/sock.rs:569:9
[INFO] [stdout]     |
[INFO] [stdout] 569 |         interrupt:  &mut ThreadInterrupt,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interrupt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_data`
[INFO] [stdout]    --> src/sock.rs:570:9
[INFO] [stdout]     |
[INFO] [stdout] 570 |         max_data:   usize) -> String {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errmsg`
[INFO] [stdout]    --> src/sock.rs:653:32
[INFO] [stdout]     |
[INFO] [stdout] 653 |     pub fn is_connected(&self, errmsg: &mut String) -> bool {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_errmsg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/sock.rs:708:29
[INFO] [stdout]     |
[INFO] [stdout] 708 | pub fn network_error_string(err: i32) -> String {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `socket` is never read
[INFO] [stdout]   --> src/sock.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Sock {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     socket: CSocket,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/sock.rs:321:40
[INFO] [stdout]     |
[INFO] [stdout] 321 | #[inline] pub fn io_error_is_permanent(err: i32) -> bool {
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/sock.rs:349:13
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn from(s: CSocket) -> Self {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/sock.rs:368:35
[INFO] [stdout]     |
[INFO] [stdout] 368 |     pub fn assign_from(&mut self, other: Sock) -> &mut Sock {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/sock.rs:406:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |         data:  *const c_void,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/sock.rs:407:9
[INFO] [stdout]     |
[INFO] [stdout] 407 |         len:   usize,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/sock.rs:408:9
[INFO] [stdout]     |
[INFO] [stdout] 408 |         flags: i32) -> isize {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/sock.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |         buf:   *mut c_void,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/sock.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         len:   usize,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/sock.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 419 |         flags: i32) -> isize {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/sock.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |         addr:     *const SocketAddr,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr_len`
[INFO] [stdout]    --> src/sock.rs:429:9
[INFO] [stdout]     |
[INFO] [stdout] 429 |         addr_len: libc::socklen_t) -> i32 {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_addr_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/sock.rs:438:9
[INFO] [stdout]     |
[INFO] [stdout] 438 |         level:    i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt_name`
[INFO] [stdout]    --> src/sock.rs:439:9
[INFO] [stdout]     |
[INFO] [stdout] 439 |         opt_name: i32,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opt_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt_val`
[INFO] [stdout]    --> src/sock.rs:440:9
[INFO] [stdout]     |
[INFO] [stdout] 440 |         opt_val:  *mut c_void,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opt_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt_len`
[INFO] [stdout]    --> src/sock.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |         opt_len:  *mut libc::socklen_t) -> i32 {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opt_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timeout`
[INFO] [stdout]    --> src/sock.rs:450:9
[INFO] [stdout]     |
[INFO] [stdout] 450 |         timeout:   Instant /* millis */,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `requested`
[INFO] [stdout]    --> src/sock.rs:451:9
[INFO] [stdout]     |
[INFO] [stdout] 451 |         requested: SockEvent,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_requested`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `occurred`
[INFO] [stdout]    --> src/sock.rs:452:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |         occurred:  *mut SockEvent) -> bool {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_occurred`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/sock.rs:522:9
[INFO] [stdout]     |
[INFO] [stdout] 522 |         data:      &String,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timeout`
[INFO] [stdout]    --> src/sock.rs:523:9
[INFO] [stdout]     |
[INFO] [stdout] 523 |         timeout:   Instant /* millis */,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interrupt`
[INFO] [stdout]    --> src/sock.rs:524:9
[INFO] [stdout]     |
[INFO] [stdout] 524 |         interrupt: &mut ThreadInterrupt)  {
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interrupt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `terminator`
[INFO] [stdout]    --> src/sock.rs:567:9
[INFO] [stdout]     |
[INFO] [stdout] 567 |         terminator: u8,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_terminator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timeout`
[INFO] [stdout]    --> src/sock.rs:568:9
[INFO] [stdout]     |
[INFO] [stdout] 568 |         timeout:    Instant /* millis */,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interrupt`
[INFO] [stdout]    --> src/sock.rs:569:9
[INFO] [stdout]     |
[INFO] [stdout] 569 |         interrupt:  &mut ThreadInterrupt,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interrupt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_data`
[INFO] [stdout]    --> src/sock.rs:570:9
[INFO] [stdout]     |
[INFO] [stdout] 570 |         max_data:   usize) -> String {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errmsg`
[INFO] [stdout]    --> src/sock.rs:653:32
[INFO] [stdout]     |
[INFO] [stdout] 653 |     pub fn is_connected(&self, errmsg: &mut String) -> bool {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_errmsg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/sock.rs:708:29
[INFO] [stdout]     |
[INFO] [stdout] 708 | pub fn network_error_string(err: i32) -> String {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `socket` is never read
[INFO] [stdout]   --> src/sock.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Sock {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     socket: CSocket,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 39s
[INFO] running `Command { std: "docker" "inspect" "6946d83e2e37bd46e319b3949f09d336facede48443339c9e53f0037d76831bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6946d83e2e37bd46e319b3949f09d336facede48443339c9e53f0037d76831bf", kill_on_drop: false }`
[INFO] [stdout] 6946d83e2e37bd46e319b3949f09d336facede48443339c9e53f0037d76831bf