[INFO] cloning repository https://github.com/GallaisPoutine/Tetris-multiplayer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GallaisPoutine/Tetris-multiplayer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGallaisPoutine%2FTetris-multiplayer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGallaisPoutine%2FTetris-multiplayer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 188ad506f4753864f802f2fe37182de1b8de9da6
[INFO] checking GallaisPoutine/Tetris-multiplayer against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGallaisPoutine%2FTetris-multiplayer" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GallaisPoutine/Tetris-multiplayer on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GallaisPoutine/Tetris-multiplayer
[INFO] finished tweaking git repo https://github.com/GallaisPoutine/Tetris-multiplayer
[INFO] tweaked toml for git repo https://github.com/GallaisPoutine/Tetris-multiplayer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/GallaisPoutine/Tetris-multiplayer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", 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] 274a43439fc631f994b85e212d63149538687555c48ef7f5cb568746a4db84cc
[INFO] running `Command { std: "docker" "start" "-a" "274a43439fc631f994b85e212d63149538687555c48ef7f5cb568746a4db84cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "274a43439fc631f994b85e212d63149538687555c48ef7f5cb568746a4db84cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274a43439fc631f994b85e212d63149538687555c48ef7f5cb568746a4db84cc", kill_on_drop: false }`
[INFO] [stdout] 274a43439fc631f994b85e212d63149538687555c48ef7f5cb568746a4db84cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fefe5988a6c3e810b93a2a142c8c0a4622394f7a56b389c15165c49a780102bb
[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" "fefe5988a6c3e810b93a2a142c8c0a4622394f7a56b389c15165c49a780102bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking tetris_v2 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/server.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn write(&mut self, msg: & str) {
[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: associated function is never used: `write`
[INFO] [stdout]   --> src/server.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn write(&mut self, msg: & str) {
[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 10.32s
[INFO] running `Command { std: "docker" "inspect" "fefe5988a6c3e810b93a2a142c8c0a4622394f7a56b389c15165c49a780102bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fefe5988a6c3e810b93a2a142c8c0a4622394f7a56b389c15165c49a780102bb", kill_on_drop: false }`
[INFO] [stdout] fefe5988a6c3e810b93a2a142c8c0a4622394f7a56b389c15165c49a780102bb