[INFO] fetching crate fast-socks5 0.4.2...
[INFO] checking fast-socks5-0.4.2 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate fast-socks5 0.4.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate fast-socks5 0.4.2 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fast-socks5 0.4.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate fast-socks5 0.4.2
[INFO] tweaked toml for crates.io crate fast-socks5 0.4.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate fast-socks5 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79bfd7f2dd39326172c4ee471542be91ececcdafb4b377fd8e3eb5dc21677280
[INFO] running `Command { std: "docker" "start" "-a" "79bfd7f2dd39326172c4ee471542be91ececcdafb4b377fd8e3eb5dc21677280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79bfd7f2dd39326172c4ee471542be91ececcdafb4b377fd8e3eb5dc21677280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79bfd7f2dd39326172c4ee471542be91ececcdafb4b377fd8e3eb5dc21677280", kill_on_drop: false }`
[INFO] [stdout] 79bfd7f2dd39326172c4ee471542be91ececcdafb4b377fd8e3eb5dc21677280
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 386d6351d66b48d7df008c6b6724ca5b6a774705f0e14eef51dcb7bda07470d5
[INFO] running `Command { std: "docker" "start" "-a" "386d6351d66b48d7df008c6b6724ca5b6a774705f0e14eef51dcb7bda07470d5", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `server`
[INFO] [stdout]    --> src/server.rs:642:17
[INFO] [stdout]     |
[INFO] [stdout] 642 |             let server = Socks5Server::bind("127.0.0.1:1080").await.unwrap();
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]    --> src/server.rs:641:9
[INFO] [stdout]     |
[INFO] [stdout] 641 | /         async {
[INFO] [stdout] 642 | |             let server = Socks5Server::bind("127.0.0.1:1080").await.unwrap();
[INFO] [stdout] 643 | |         };
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Socks5Server`
[INFO] [stdout]  --> examples/simple_tcp_server.rs:9:42
[INFO] [stdout]   |
[INFO] [stdout] 9 |     server::{Config, SimpleUserPassword, Socks5Server, Socks5Socket},
[INFO] [stdout]   |                                          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/simple_tcp_server.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut listener = TcpListener::bind(&opt.listen_addr).await?;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.43s
[INFO] running `Command { std: "docker" "inspect" "386d6351d66b48d7df008c6b6724ca5b6a774705f0e14eef51dcb7bda07470d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "386d6351d66b48d7df008c6b6724ca5b6a774705f0e14eef51dcb7bda07470d5", kill_on_drop: false }`
[INFO] [stdout] 386d6351d66b48d7df008c6b6724ca5b6a774705f0e14eef51dcb7bda07470d5