[INFO] cloning repository https://github.com/jonlil/prolink-connect
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonlil/prolink-connect" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonlil%2Fprolink-connect", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonlil%2Fprolink-connect'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1fc6d83fe5497efa03f26bab8ff9c5dfe98182a
[INFO] checking jonlil/prolink-connect against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonlil%2Fprolink-connect" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonlil/prolink-connect on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jonlil/prolink-connect
[INFO] finished tweaking git repo https://github.com/jonlil/prolink-connect
[INFO] tweaked toml for git repo https://github.com/jonlil/prolink-connect written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jonlil/prolink-connect already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 530856246b08cae5173a84dbb2d202300715d14db12da1ca3ae555e8c292d096
[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" "530856246b08cae5173a84dbb2d202300715d14db12da1ca3ae555e8c292d096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "530856246b08cae5173a84dbb2d202300715d14db12da1ca3ae555e8c292d096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530856246b08cae5173a84dbb2d202300715d14db12da1ca3ae555e8c292d096", kill_on_drop: false }`
[INFO] [stdout] 530856246b08cae5173a84dbb2d202300715d14db12da1ca3ae555e8c292d096
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bbeeeae750c6fdac798fe31c14f9b58dae25d8fe39c4a1db3f7c0f3774d536d
[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" "3bbeeeae750c6fdac798fe31c14f9b58dae25d8fe39c4a1db3f7c0f3774d536d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking lexical-core v0.7.5
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]    Compiling nom-derive v0.7.1
[INFO] [stderr]     Checking prolink-connect v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/network.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut device_manager = DeviceManager {
[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: constant is never used: `STATUS_PORT`
[INFO] [stdout]  --> src/network.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const STATUS_PORT: u16 = 50002;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `device_manager`
[INFO] [stdout]  --> src/network.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     device_manager: DeviceManager,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `NetworkState`
[INFO] [stdout]   --> src/network.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct NetworkState {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/network.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut device_manager = DeviceManager {
[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: constant is never used: `STATUS_PORT`
[INFO] [stdout]  --> src/network.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const STATUS_PORT: u16 = 50002;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `device_manager`
[INFO] [stdout]  --> src/network.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     device_manager: DeviceManager,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `NetworkState`
[INFO] [stdout]   --> src/network.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct NetworkState {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.70s
[INFO] running `Command { std: "docker" "inspect" "3bbeeeae750c6fdac798fe31c14f9b58dae25d8fe39c4a1db3f7c0f3774d536d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bbeeeae750c6fdac798fe31c14f9b58dae25d8fe39c4a1db3f7c0f3774d536d", kill_on_drop: false }`
[INFO] [stdout] 3bbeeeae750c6fdac798fe31c14f9b58dae25d8fe39c4a1db3f7c0f3774d536d