[INFO] crate libp2p-tcp 0.20.0 is already in cache
[INFO] testing libp2p-tcp-0.20.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate libp2p-tcp 0.20.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate libp2p-tcp 0.20.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-tcp 0.20.0
[INFO] finished tweaking crates.io crate libp2p-tcp 0.20.0
[INFO] tweaked toml for crates.io crate libp2p-tcp 0.20.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed4f5f5783eea8a1762487dfc0cc2e8e3a86e34e34b5b1ec08f3782e59e61fc2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ed4f5f5783eea8a1762487dfc0cc2e8e3a86e34e34b5b1ec08f3782e59e61fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed4f5f5783eea8a1762487dfc0cc2e8e3a86e34e34b5b1ec08f3782e59e61fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed4f5f5783eea8a1762487dfc0cc2e8e3a86e34e34b5b1ec08f3782e59e61fc2", kill_on_drop: false }`
[INFO] [stdout] ed4f5f5783eea8a1762487dfc0cc2e8e3a86e34e34b5b1ec08f3782e59e61fc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf5c50ec75d7ca6f4b3c6210a0fa5d2ef45203bc54ddc1590617bb927defab88
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bf5c50ec75d7ca6f4b3c6210a0fa5d2ef45203bc54ddc1590617bb927defab88", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling c_linked_list v1.1.1
[INFO] [stderr]    Compiling ipnet v2.3.0
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling get_if_addrs v0.5.3
[INFO] [stderr]    Compiling libp2p-tcp v0.20.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/lib.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures_timer::Delay`
[INFO] [stdout]   --> src/lib.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use futures_timer::Delay;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TransportError`, `Transport`
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Transport,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 38 |     multiaddr::{Protocol, Multiaddr},
[INFO] [stdout] 39 |     transport::{ListenerEvent, TransportError}
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trace`
[INFO] [stdout]   --> src/lib.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 | use log::{debug, trace};
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Domain`, `Socket`, `Type`
[INFO] [stdout]   --> src/lib.rs:42:15
[INFO] [stdout]    |
[INFO] [stdout] 42 | use socket2::{Socket, Domain, Type};
[INFO] [stdout]    |               ^^^^^^  ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context`, `Poll`, `convert::TryFrom`, `pin::Pin`, `time::Duration`
[INFO] [stdout]   --> src/lib.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     convert::TryFrom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pin::Pin,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 50 |     task::{Context, Poll},
[INFO] [stdout]    |            ^^^^^^^  ^^^^
[INFO] [stdout] 51 |     time::Duration
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:54:1
[INFO] [stdout]     |
[INFO] [stdout] 54  | / macro_rules! codegen {
[INFO] [stdout] 55  | |     ($feature_name:expr, $tcp_config:ident, $tcp_trans_stream:ident, $tcp_listen_stream:ident, $apply_config:ident, $tcp_stream:ty, $tcp_...
[INFO] [stdout] 56  | |
[INFO] [stdout] 57  | | /// Represents the configuration for a TCP/IP transport capability for libp2p.
[INFO] [stdout] ...   |
[INFO] [stdout] 322 | | };
[INFO] [stdout] 323 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]   --> src/lib.rs:32:38
[INFO] [stdout]    |
[INFO] [stdout] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stdout]    |                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiaddr_to_socketaddr`
[INFO] [stdout]    --> src/lib.rs:376:4
[INFO] [stdout]     |
[INFO] [stdout] 376 | fn multiaddr_to_socketaddr(addr: &Multiaddr) -> Result<SocketAddr, ()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ip_to_multiaddr`
[INFO] [stdout]    --> src/lib.rs:393:4
[INFO] [stdout]     |
[INFO] [stdout] 393 | fn ip_to_multiaddr(ip: IpAddr, port: u16) -> Multiaddr {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `host_addresses`
[INFO] [stdout]    --> src/lib.rs:403:4
[INFO] [stdout]     |
[INFO] [stdout] 403 | fn host_addresses(port: u16) -> io::Result<Vec<(IpAddr, IpNet, Multiaddr)>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `One`
[INFO] [stdout]    --> src/lib.rs:431:5
[INFO] [stdout]     |
[INFO] [stdout] 431 |     One(Multiaddr),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Many`
[INFO] [stdout]    --> src/lib.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     Many(Vec<(IpAddr, IpNet, Multiaddr)>)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Buffer`
[INFO] [stdout]    --> src/lib.rs:436:1
[INFO] [stdout]     |
[INFO] [stdout] 436 | type Buffer<T> = VecDeque<Result<ListenerEvent<Ready<Result<T, io::Error>>, io::Error>, io::Error>>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_for_interface_changes`
[INFO] [stdout]    --> src/lib.rs:441:4
[INFO] [stdout]     |
[INFO] [stdout] 441 | fn check_for_interface_changes<T>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "bf5c50ec75d7ca6f4b3c6210a0fa5d2ef45203bc54ddc1590617bb927defab88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf5c50ec75d7ca6f4b3c6210a0fa5d2ef45203bc54ddc1590617bb927defab88", kill_on_drop: false }`
[INFO] [stdout] bf5c50ec75d7ca6f4b3c6210a0fa5d2ef45203bc54ddc1590617bb927defab88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bbc312eca2a8b80f81435854c47adce724e246189f9c78f29edc69cfa941ef88
[INFO] running `Command { std: "docker" "start" "-a" "bbc312eca2a8b80f81435854c47adce724e246189f9c78f29edc69cfa941ef88", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libp2p-tcp v0.20.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/lib.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures_timer::Delay`
[INFO] [stdout]   --> src/lib.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use futures_timer::Delay;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TransportError`, `Transport`
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Transport,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 38 |     multiaddr::{Protocol, Multiaddr},
[INFO] [stdout] 39 |     transport::{ListenerEvent, TransportError}
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trace`
[INFO] [stdout]   --> src/lib.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 | use log::{debug, trace};
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Domain`, `Socket`, `Type`
[INFO] [stdout]   --> src/lib.rs:42:15
[INFO] [stdout]    |
[INFO] [stdout] 42 | use socket2::{Socket, Domain, Type};
[INFO] [stdout]    |               ^^^^^^  ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context`, `Poll`, `convert::TryFrom`, `pin::Pin`, `time::Duration`
[INFO] [stdout]   --> src/lib.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     convert::TryFrom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pin::Pin,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 50 |     task::{Context, Poll},
[INFO] [stdout]    |            ^^^^^^^  ^^^^
[INFO] [stdout] 51 |     time::Duration
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:54:1
[INFO] [stdout]     |
[INFO] [stdout] 54  | / macro_rules! codegen {
[INFO] [stdout] 55  | |     ($feature_name:expr, $tcp_config:ident, $tcp_trans_stream:ident, $tcp_listen_stream:ident, $apply_config:ident, $tcp_stream:ty, $tcp_...
[INFO] [stdout] 56  | |
[INFO] [stdout] 57  | | /// Represents the configuration for a TCP/IP transport capability for libp2p.
[INFO] [stdout] ...   |
[INFO] [stdout] 322 | | };
[INFO] [stdout] 323 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]   --> src/lib.rs:32:38
[INFO] [stdout]    |
[INFO] [stdout] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stdout]    |                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiaddr_to_socketaddr`
[INFO] [stdout]    --> src/lib.rs:376:4
[INFO] [stdout]     |
[INFO] [stdout] 376 | fn multiaddr_to_socketaddr(addr: &Multiaddr) -> Result<SocketAddr, ()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ip_to_multiaddr`
[INFO] [stdout]    --> src/lib.rs:393:4
[INFO] [stdout]     |
[INFO] [stdout] 393 | fn ip_to_multiaddr(ip: IpAddr, port: u16) -> Multiaddr {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `host_addresses`
[INFO] [stdout]    --> src/lib.rs:403:4
[INFO] [stdout]     |
[INFO] [stdout] 403 | fn host_addresses(port: u16) -> io::Result<Vec<(IpAddr, IpNet, Multiaddr)>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `One`
[INFO] [stdout]    --> src/lib.rs:431:5
[INFO] [stdout]     |
[INFO] [stdout] 431 |     One(Multiaddr),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Many`
[INFO] [stdout]    --> src/lib.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     Many(Vec<(IpAddr, IpNet, Multiaddr)>)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Buffer`
[INFO] [stdout]    --> src/lib.rs:436:1
[INFO] [stdout]     |
[INFO] [stdout] 436 | type Buffer<T> = VecDeque<Result<ListenerEvent<Ready<Result<T, io::Error>>, io::Error>, io::Error>>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_for_interface_changes`
[INFO] [stdout]    --> src/lib.rs:441:4
[INFO] [stdout]     |
[INFO] [stdout] 441 | fn check_for_interface_changes<T>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/lib.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures_timer::Delay`
[INFO] [stdout]   --> src/lib.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use futures_timer::Delay;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TransportError`, `Transport`
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Transport,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 38 |     multiaddr::{Protocol, Multiaddr},
[INFO] [stdout] 39 |     transport::{ListenerEvent, TransportError}
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trace`
[INFO] [stdout]   --> src/lib.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 | use log::{debug, trace};
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Domain`, `Socket`, `Type`
[INFO] [stdout]   --> src/lib.rs:42:15
[INFO] [stdout]    |
[INFO] [stdout] 42 | use socket2::{Socket, Domain, Type};
[INFO] [stdout]    |               ^^^^^^  ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context`, `Poll`, `convert::TryFrom`, `pin::Pin`, `time::Duration`
[INFO] [stdout]   --> src/lib.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     convert::TryFrom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pin::Pin,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 50 |     task::{Context, Poll},
[INFO] [stdout]    |            ^^^^^^^  ^^^^
[INFO] [stdout] 51 |     time::Duration
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:54:1
[INFO] [stdout]     |
[INFO] [stdout] 54  | / macro_rules! codegen {
[INFO] [stdout] 55  | |     ($feature_name:expr, $tcp_config:ident, $tcp_trans_stream:ident, $tcp_listen_stream:ident, $apply_config:ident, $tcp_stream:ty, $tcp_...
[INFO] [stdout] 56  | |
[INFO] [stdout] 57  | | /// Represents the configuration for a TCP/IP transport capability for libp2p.
[INFO] [stdout] ...   |
[INFO] [stdout] 322 | | };
[INFO] [stdout] 323 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::prelude::*`
[INFO] [stdout]    --> src/lib.rs:495:9
[INFO] [stdout]     |
[INFO] [stdout] 495 |     use futures::prelude::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Protocol`, `Transport`, `transport::ListenerEvent`
[INFO] [stdout]    --> src/lib.rs:496:23
[INFO] [stdout]     |
[INFO] [stdout] 496 |     use libp2p_core::{Transport, multiaddr::{Multiaddr, Protocol}, transport::ListenerEvent};
[INFO] [stdout]     |                       ^^^^^^^^^                         ^^^^^^^^   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]   --> src/lib.rs:32:38
[INFO] [stdout]    |
[INFO] [stdout] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stdout]    |                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ip_to_multiaddr`
[INFO] [stdout]    --> src/lib.rs:393:4
[INFO] [stdout]     |
[INFO] [stdout] 393 | fn ip_to_multiaddr(ip: IpAddr, port: u16) -> Multiaddr {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `host_addresses`
[INFO] [stdout]    --> src/lib.rs:403:4
[INFO] [stdout]     |
[INFO] [stdout] 403 | fn host_addresses(port: u16) -> io::Result<Vec<(IpAddr, IpNet, Multiaddr)>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `One`
[INFO] [stdout]    --> src/lib.rs:431:5
[INFO] [stdout]     |
[INFO] [stdout] 431 |     One(Multiaddr),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Many`
[INFO] [stdout]    --> src/lib.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     Many(Vec<(IpAddr, IpNet, Multiaddr)>)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Buffer`
[INFO] [stdout]    --> src/lib.rs:436:1
[INFO] [stdout]     |
[INFO] [stdout] 436 | type Buffer<T> = VecDeque<Result<ListenerEvent<Ready<Result<T, io::Error>>, io::Error>, io::Error>>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_for_interface_changes`
[INFO] [stdout]    --> src/lib.rs:441:4
[INFO] [stdout]     |
[INFO] [stdout] 441 | fn check_for_interface_changes<T>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "bbc312eca2a8b80f81435854c47adce724e246189f9c78f29edc69cfa941ef88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbc312eca2a8b80f81435854c47adce724e246189f9c78f29edc69cfa941ef88", kill_on_drop: false }`
[INFO] [stdout] bbc312eca2a8b80f81435854c47adce724e246189f9c78f29edc69cfa941ef88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 81eb90e4a52ca381a8a56c5cbeb8b2b5cb10735e030b2514c74e0c3ec4aaca81
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "81eb90e4a52ca381a8a56c5cbeb8b2b5cb10735e030b2514c74e0c3ec4aaca81", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/lib.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stderr]    |                        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures_timer::Delay`
[INFO] [stderr]   --> src/lib.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | use futures_timer::Delay;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `TransportError`, `Transport`
[INFO] [stderr]   --> src/lib.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Transport,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 38 |     multiaddr::{Protocol, Multiaddr},
[INFO] [stderr] 39 |     transport::{ListenerEvent, TransportError}
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `trace`
[INFO] [stderr]   --> src/lib.rs:41:18
[INFO] [stderr]    |
[INFO] [stderr] 41 | use log::{debug, trace};
[INFO] [stderr]    |                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Domain`, `Socket`, `Type`
[INFO] [stderr]   --> src/lib.rs:42:15
[INFO] [stderr]    |
[INFO] [stderr] 42 | use socket2::{Socket, Domain, Type};
[INFO] [stderr]    |               ^^^^^^  ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Context`, `Poll`, `convert::TryFrom`, `pin::Pin`, `time::Duration`
[INFO] [stderr]   --> src/lib.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     convert::TryFrom,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |     pin::Pin,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 50 |     task::{Context, Poll},
[INFO] [stderr]    |            ^^^^^^^  ^^^^
[INFO] [stderr] 51 |     time::Duration
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/lib.rs:54:1
[INFO] [stderr]     |
[INFO] [stderr] 54  | / macro_rules! codegen {
[INFO] [stderr] 55  | |     ($feature_name:expr, $tcp_config:ident, $tcp_trans_stream:ident, $tcp_listen_stream:ident, $apply_config:ident, $tcp_stream:ty, $tcp_...
[INFO] [stderr] 56  | |
[INFO] [stderr] 57  | | /// Represents the configuration for a TCP/IP transport capability for libp2p.
[INFO] [stderr] ...   |
[INFO] [stderr] 322 | | };
[INFO] [stderr] 323 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::prelude::*`
[INFO] [stderr]    --> src/lib.rs:495:9
[INFO] [stderr]     |
[INFO] [stderr] 495 |     use futures::prelude::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Protocol`, `Transport`, `transport::ListenerEvent`
[INFO] [stderr]    --> src/lib.rs:496:23
[INFO] [stderr]     |
[INFO] [stderr] 496 |     use libp2p_core::{Transport, multiaddr::{Multiaddr, Protocol}, transport::ListenerEvent};
[INFO] [stderr]     |                       ^^^^^^^^^                         ^^^^^^^^   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `prelude`
[INFO] [stderr]   --> src/lib.rs:32:38
[INFO] [stderr]    |
[INFO] [stderr] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stderr]    |                                      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ip_to_multiaddr`
[INFO] [stderr]    --> src/lib.rs:393:4
[INFO] [stderr]     |
[INFO] [stderr] 393 | fn ip_to_multiaddr(ip: IpAddr, port: u16) -> Multiaddr {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `host_addresses`
[INFO] [stderr]    --> src/lib.rs:403:4
[INFO] [stderr]     |
[INFO] [stderr] 403 | fn host_addresses(port: u16) -> io::Result<Vec<(IpAddr, IpNet, Multiaddr)>> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `One`
[INFO] [stderr]    --> src/lib.rs:431:5
[INFO] [stderr]     |
[INFO] [stderr] 431 |     One(Multiaddr),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Many`
[INFO] [stderr]    --> src/lib.rs:433:5
[INFO] [stderr]     |
[INFO] [stderr] 433 |     Many(Vec<(IpAddr, IpNet, Multiaddr)>)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Buffer`
[INFO] [stderr]    --> src/lib.rs:436:1
[INFO] [stderr]     |
[INFO] [stderr] 436 | type Buffer<T> = VecDeque<Result<ListenerEvent<Ready<Result<T, io::Error>>, io::Error>, io::Error>>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_for_interface_changes`
[INFO] [stderr]    --> src/lib.rs:441:4
[INFO] [stderr]     |
[INFO] [stderr] 441 | fn check_for_interface_changes<T>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/lib.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stderr]    |                        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures_timer::Delay`
[INFO] [stderr]   --> src/lib.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | use futures_timer::Delay;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `TransportError`, `Transport`
[INFO] [stderr]   --> src/lib.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Transport,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 38 |     multiaddr::{Protocol, Multiaddr},
[INFO] [stderr] 39 |     transport::{ListenerEvent, TransportError}
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `trace`
[INFO] [stderr]   --> src/lib.rs:41:18
[INFO] [stderr]    |
[INFO] [stderr] 41 | use log::{debug, trace};
[INFO] [stderr]    |                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Domain`, `Socket`, `Type`
[INFO] [stderr]   --> src/lib.rs:42:15
[INFO] [stderr]    |
[INFO] [stderr] 42 | use socket2::{Socket, Domain, Type};
[INFO] [stderr]    |               ^^^^^^  ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Context`, `Poll`, `convert::TryFrom`, `pin::Pin`, `time::Duration`
[INFO] [stderr]   --> src/lib.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     convert::TryFrom,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |     pin::Pin,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 50 |     task::{Context, Poll},
[INFO] [stderr]    |            ^^^^^^^  ^^^^
[INFO] [stderr] 51 |     time::Duration
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/lib.rs:54:1
[INFO] [stderr]     |
[INFO] [stderr] 54  | / macro_rules! codegen {
[INFO] [stderr] 55  | |     ($feature_name:expr, $tcp_config:ident, $tcp_trans_stream:ident, $tcp_listen_stream:ident, $apply_config:ident, $tcp_stream:ty, $tcp_...
[INFO] [stderr] 56  | |
[INFO] [stderr] 57  | | /// Represents the configuration for a TCP/IP transport capability for libp2p.
[INFO] [stderr] ...   |
[INFO] [stderr] 322 | | };
[INFO] [stderr] 323 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `prelude`
[INFO] [stderr]   --> src/lib.rs:32:38
[INFO] [stderr]    |
[INFO] [stderr] 32 | use futures::{future::{self, Ready}, prelude::*};
[INFO] [stderr]    |                                      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `multiaddr_to_socketaddr`
[INFO] [stderr]    --> src/lib.rs:376:4
[INFO] [stderr]     |
[INFO] [stderr] 376 | fn multiaddr_to_socketaddr(addr: &Multiaddr) -> Result<SocketAddr, ()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ip_to_multiaddr`
[INFO] [stderr]    --> src/lib.rs:393:4
[INFO] [stderr]     |
[INFO] [stderr] 393 | fn ip_to_multiaddr(ip: IpAddr, port: u16) -> Multiaddr {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `host_addresses`
[INFO] [stderr]    --> src/lib.rs:403:4
[INFO] [stderr]     |
[INFO] [stderr] 403 | fn host_addresses(port: u16) -> io::Result<Vec<(IpAddr, IpNet, Multiaddr)>> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `One`
[INFO] [stderr]    --> src/lib.rs:431:5
[INFO] [stderr]     |
[INFO] [stderr] 431 |     One(Multiaddr),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Many`
[INFO] [stderr]    --> src/lib.rs:433:5
[INFO] [stderr]     |
[INFO] [stderr] 433 |     Many(Vec<(IpAddr, IpNet, Multiaddr)>)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Buffer`
[INFO] [stderr]    --> src/lib.rs:436:1
[INFO] [stderr]     |
[INFO] [stderr] 436 | type Buffer<T> = VecDeque<Result<ListenerEvent<Ready<Result<T, io::Error>>, io::Error>, io::Error>>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_for_interface_changes`
[INFO] [stderr]    --> src/lib.rs:441:4
[INFO] [stderr]     |
[INFO] [stderr] 441 | fn check_for_interface_changes<T>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libp2p_tcp-ab6d137508912ef0
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::multiaddr_to_tcp_conversion ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libp2p-tcp
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "81eb90e4a52ca381a8a56c5cbeb8b2b5cb10735e030b2514c74e0c3ec4aaca81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81eb90e4a52ca381a8a56c5cbeb8b2b5cb10735e030b2514c74e0c3ec4aaca81", kill_on_drop: false }`
[INFO] [stdout] 81eb90e4a52ca381a8a56c5cbeb8b2b5cb10735e030b2514c74e0c3ec4aaca81