[INFO] fetching crate fast-socks5 0.4.2...
[INFO] checking fast-socks5-0.4.2 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate fast-socks5 0.4.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate fast-socks5 0.4.2 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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-8/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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" "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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 854bf1ff36667ef60eb6f4a24be9be1701bf1a3a8d6b5cc136ce9276e8d10325
[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" "854bf1ff36667ef60eb6f4a24be9be1701bf1a3a8d6b5cc136ce9276e8d10325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "854bf1ff36667ef60eb6f4a24be9be1701bf1a3a8d6b5cc136ce9276e8d10325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854bf1ff36667ef60eb6f4a24be9be1701bf1a3a8d6b5cc136ce9276e8d10325", kill_on_drop: false }`
[INFO] [stdout] 854bf1ff36667ef60eb6f4a24be9be1701bf1a3a8d6b5cc136ce9276e8d10325
[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" "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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff2bd3df32de383e99ef164f84fe85d5ef19c31172268efd4aa98e30fa9cab28
[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" "ff2bd3df32de383e99ef164f84fe85d5ef19c31172268efd4aa98e30fa9cab28", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking waker-fn v1.1.0
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[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking slab v0.4.2
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[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking futures-task v0.3.8
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
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[INFO] [stderr]     Checking textwrap v0.11.0
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[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.0
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[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling rustversion v1.0.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]     Checking thiserror v1.0.9
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking structopt v0.3.7
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking fast-socks5 v0.4.2 (/opt/rustwide/workdir)
[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 53.70s
[INFO] running `Command { std: "docker" "inspect" "ff2bd3df32de383e99ef164f84fe85d5ef19c31172268efd4aa98e30fa9cab28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2bd3df32de383e99ef164f84fe85d5ef19c31172268efd4aa98e30fa9cab28", kill_on_drop: false }`
[INFO] [stdout] ff2bd3df32de383e99ef164f84fe85d5ef19c31172268efd4aa98e30fa9cab28