[INFO] cloning repository https://github.com/pydevnepal/rust-chat-system
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pydevnepal/rust-chat-system" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpydevnepal%2Frust-chat-system", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpydevnepal%2Frust-chat-system'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c83d7bbc1abc312292d6b4ab0cb62adc98b8c55
[INFO] checking pydevnepal/rust-chat-system against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpydevnepal%2Frust-chat-system" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pydevnepal/rust-chat-system 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/pydevnepal/rust-chat-system
[INFO] finished tweaking git repo https://github.com/pydevnepal/rust-chat-system
[INFO] tweaked toml for git repo https://github.com/pydevnepal/rust-chat-system written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pydevnepal/rust-chat-system 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ea2ae8899796a968f4ad1a4eafc5cc8e854555bf61a89c04d803d2360e84089a
[INFO] running `Command { std: "docker" "start" "-a" "ea2ae8899796a968f4ad1a4eafc5cc8e854555bf61a89c04d803d2360e84089a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea2ae8899796a968f4ad1a4eafc5cc8e854555bf61a89c04d803d2360e84089a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea2ae8899796a968f4ad1a4eafc5cc8e854555bf61a89c04d803d2360e84089a", kill_on_drop: false }`
[INFO] [stdout] ea2ae8899796a968f4ad1a4eafc5cc8e854555bf61a89c04d803d2360e84089a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] aac5bfb7d18e392f1db05eb22c71aedd890149b3263179159d6dc5cf096e6cae
[INFO] running `Command { std: "docker" "start" "-a" "aac5bfb7d18e392f1db05eb22c71aedd890149b3263179159d6dc5cf096e6cae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling tokio-macros v1.5.1
[INFO] [stderr]     Checking chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.78s
[INFO] running `Command { std: "docker" "inspect" "aac5bfb7d18e392f1db05eb22c71aedd890149b3263179159d6dc5cf096e6cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac5bfb7d18e392f1db05eb22c71aedd890149b3263179159d6dc5cf096e6cae", kill_on_drop: false }`
[INFO] [stdout] aac5bfb7d18e392f1db05eb22c71aedd890149b3263179159d6dc5cf096e6cae
[INFO] checking pydevnepal/rust-chat-system against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpydevnepal%2Frust-chat-system" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pydevnepal/rust-chat-system on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pydevnepal/rust-chat-system
[INFO] finished tweaking git repo https://github.com/pydevnepal/rust-chat-system
[INFO] tweaked toml for git repo https://github.com/pydevnepal/rust-chat-system written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pydevnepal/rust-chat-system 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44f9abe77407bf05f34e068e4c645d344f88aa63398c9a978df313d943c5cdd3
[INFO] running `Command { std: "docker" "start" "-a" "44f9abe77407bf05f34e068e4c645d344f88aa63398c9a978df313d943c5cdd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44f9abe77407bf05f34e068e4c645d344f88aa63398c9a978df313d943c5cdd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44f9abe77407bf05f34e068e4c645d344f88aa63398c9a978df313d943c5cdd3", kill_on_drop: false }`
[INFO] [stdout] 44f9abe77407bf05f34e068e4c645d344f88aa63398c9a978df313d943c5cdd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63d71f5485590a04cb0e8e6101027a746905d94b173cb7bf8d58eb5a954291e6
[INFO] running `Command { std: "docker" "start" "-a" "63d71f5485590a04cb0e8e6101027a746905d94b173cb7bf8d58eb5a954291e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling tokio-macros v1.5.1
[INFO] [stderr]     Checking chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.85s
[INFO] running `Command { std: "docker" "inspect" "63d71f5485590a04cb0e8e6101027a746905d94b173cb7bf8d58eb5a954291e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63d71f5485590a04cb0e8e6101027a746905d94b173cb7bf8d58eb5a954291e6", kill_on_drop: false }`
[INFO] [stdout] 63d71f5485590a04cb0e8e6101027a746905d94b173cb7bf8d58eb5a954291e6