[INFO] cloning repository https://github.com/khandelwalarvind26/Simple-Chat-server [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khandelwalarvind26/Simple-Chat-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhandelwalarvind26%2FSimple-Chat-server", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhandelwalarvind26%2FSimple-Chat-server'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 40fe95b9eeef181bf965d210d17b8b2884e7590e [INFO] checking khandelwalarvind26/Simple-Chat-server against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhandelwalarvind26%2FSimple-Chat-server" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/khandelwalarvind26/Simple-Chat-server on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/khandelwalarvind26/Simple-Chat-server [INFO] finished tweaking git repo https://github.com/khandelwalarvind26/Simple-Chat-server [INFO] tweaked toml for git repo https://github.com/khandelwalarvind26/Simple-Chat-server written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/khandelwalarvind26/Simple-Chat-server already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eb42d9d26f278f9bd2261ce10a52668e7f57af09a26d1d4e0d380b36e7892c54 [INFO] running `Command { std: "docker" "start" "-a" "eb42d9d26f278f9bd2261ce10a52668e7f57af09a26d1d4e0d380b36e7892c54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eb42d9d26f278f9bd2261ce10a52668e7f57af09a26d1d4e0d380b36e7892c54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb42d9d26f278f9bd2261ce10a52668e7f57af09a26d1d4e0d380b36e7892c54", kill_on_drop: false }` [INFO] [stdout] eb42d9d26f278f9bd2261ce10a52668e7f57af09a26d1d4e0d380b36e7892c54 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4803f90a818f2a3c924e9574b7b775d83342c2bee689bbf0cecd2cb3d082e058 [INFO] running `Command { std: "docker" "start" "-a" "4803f90a818f2a3c924e9574b7b775d83342c2bee689bbf0cecd2cb3d082e058", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Checking smallvec v1.11.0 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Checking pin-project-lite v0.2.10 [INFO] [stderr] Compiling quote v1.0.32 [INFO] [stderr] Checking parking_lot_core v0.9.8 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Compiling syn v2.0.28 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking simple_chat_server v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.83s [INFO] running `Command { std: "docker" "inspect" "4803f90a818f2a3c924e9574b7b775d83342c2bee689bbf0cecd2cb3d082e058", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4803f90a818f2a3c924e9574b7b775d83342c2bee689bbf0cecd2cb3d082e058", kill_on_drop: false }` [INFO] [stdout] 4803f90a818f2a3c924e9574b7b775d83342c2bee689bbf0cecd2cb3d082e058 [INFO] checking khandelwalarvind26/Simple-Chat-server against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhandelwalarvind26%2FSimple-Chat-server" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/khandelwalarvind26/Simple-Chat-server on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/khandelwalarvind26/Simple-Chat-server [INFO] finished tweaking git repo https://github.com/khandelwalarvind26/Simple-Chat-server [INFO] tweaked toml for git repo https://github.com/khandelwalarvind26/Simple-Chat-server written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/khandelwalarvind26/Simple-Chat-server already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8c9f604d9bb7e2eb69f16365e8b2b8f83ae72e96144762382dbdf76d95f77536 [INFO] running `Command { std: "docker" "start" "-a" "8c9f604d9bb7e2eb69f16365e8b2b8f83ae72e96144762382dbdf76d95f77536", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8c9f604d9bb7e2eb69f16365e8b2b8f83ae72e96144762382dbdf76d95f77536", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c9f604d9bb7e2eb69f16365e8b2b8f83ae72e96144762382dbdf76d95f77536", kill_on_drop: false }` [INFO] [stdout] 8c9f604d9bb7e2eb69f16365e8b2b8f83ae72e96144762382dbdf76d95f77536 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a076aac31c7a02e360a59d1a8dc424c011e08fca7979aa3b61ac5ea74f3d00e3 [INFO] running `Command { std: "docker" "start" "-a" "a076aac31c7a02e360a59d1a8dc424c011e08fca7979aa3b61ac5ea74f3d00e3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Checking smallvec v1.11.0 [INFO] [stderr] Checking pin-project-lite v0.2.10 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Compiling quote v1.0.32 [INFO] [stderr] Compiling syn v2.0.28 [INFO] [stderr] Checking parking_lot_core v0.9.8 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking simple_chat_server v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.35s [INFO] running `Command { std: "docker" "inspect" "a076aac31c7a02e360a59d1a8dc424c011e08fca7979aa3b61ac5ea74f3d00e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a076aac31c7a02e360a59d1a8dc424c011e08fca7979aa3b61ac5ea74f3d00e3", kill_on_drop: false }` [INFO] [stdout] a076aac31c7a02e360a59d1a8dc424c011e08fca7979aa3b61ac5ea74f3d00e3