[INFO] cloning repository https://github.com/p1ayer0ne/alfred-button
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/p1ayer0ne/alfred-button" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp1ayer0ne%2Falfred-button", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp1ayer0ne%2Falfred-button'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0220aea4cabcbee11550632ac920e9cc508e5c9
[INFO] checking p1ayer0ne/alfred-button against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp1ayer0ne%2Falfred-button" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/p1ayer0ne/alfred-button on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/p1ayer0ne/alfred-button
[INFO] finished tweaking git repo https://github.com/p1ayer0ne/alfred-button
[INFO] tweaked toml for git repo https://github.com/p1ayer0ne/alfred-button written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/p1ayer0ne/alfred-button already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cba90abdd97f60372f5b99ba4b0f0c11a285ead1fbb5a74f103238e8896bd5f
[INFO] running `Command { std: "docker" "start" "-a" "6cba90abdd97f60372f5b99ba4b0f0c11a285ead1fbb5a74f103238e8896bd5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cba90abdd97f60372f5b99ba4b0f0c11a285ead1fbb5a74f103238e8896bd5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cba90abdd97f60372f5b99ba4b0f0c11a285ead1fbb5a74f103238e8896bd5f", kill_on_drop: false }`
[INFO] [stdout] 6cba90abdd97f60372f5b99ba4b0f0c11a285ead1fbb5a74f103238e8896bd5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b2b85f975d39ca400db6176a34ee8c67987f23c69d5a4e1f6126e5e4f9e71f2
[INFO] running `Command { std: "docker" "start" "-a" "2b2b85f975d39ca400db6176a34ee8c67987f23c69d5a4e1f6126e5e4f9e71f2", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking mio v0.6.14 (https://github.com/carllerche/mio#4fcc05a7)
[INFO] [stderr]     Checking alfred v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `WebSocketServer`
[INFO] [stdout]  --> src/main.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct WebSocketServer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `WebSocketServer`
[INFO] [stdout]  --> src/main.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct WebSocketServer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "2b2b85f975d39ca400db6176a34ee8c67987f23c69d5a4e1f6126e5e4f9e71f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b2b85f975d39ca400db6176a34ee8c67987f23c69d5a4e1f6126e5e4f9e71f2", kill_on_drop: false }`
[INFO] [stdout] 2b2b85f975d39ca400db6176a34ee8c67987f23c69d5a4e1f6126e5e4f9e71f2