[INFO] cloning repository https://github.com/kapiliitr/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/kapiliitr/chat-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkapiliitr%2Fchat-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkapiliitr%2Fchat-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bbe5c9ce5d10586c4855bbb129e8f1917b1bec2d
[INFO] checking kapiliitr/chat-server against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkapiliitr%2Fchat-server" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kapiliitr/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/kapiliitr/chat-server
[INFO] finished tweaking git repo https://github.com/kapiliitr/chat-server
[INFO] tweaked toml for git repo https://github.com/kapiliitr/chat-server written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kapiliitr/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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.47
[INFO] [stderr]   Downloaded derive_more v0.99.2
[INFO] [stderr]   Downloaded wincolor v1.0.2
[INFO] [stderr]   Downloaded envconfig v0.5.1
[INFO] [stderr]   Downloaded envconfig_derive v0.5.1
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 554ebcf3a2dfd524966af63ae8bbe7671ecb34654c217c10f100ee3bb88e38dc
[INFO] running `Command { std: "docker" "start" "-a" "554ebcf3a2dfd524966af63ae8bbe7671ecb34654c217c10f100ee3bb88e38dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "554ebcf3a2dfd524966af63ae8bbe7671ecb34654c217c10f100ee3bb88e38dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "554ebcf3a2dfd524966af63ae8bbe7671ecb34654c217c10f100ee3bb88e38dc", kill_on_drop: false }`
[INFO] [stdout] 554ebcf3a2dfd524966af63ae8bbe7671ecb34654c217c10f100ee3bb88e38dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c80c0ce364adb813659d01ba366aaa9e1c5b0e440a8fd23afc17cc361b79e466
[INFO] running `Command { std: "docker" "start" "-a" "c80c0ce364adb813659d01ba366aaa9e1c5b0e440a8fd23afc17cc361b79e466", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling envconfig_derive v0.5.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking envconfig v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking chat_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused extern crate
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate env_logger;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![warn(unused_extern_crates)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused extern crate
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate env_logger;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![warn(unused_extern_crates)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `address` is never read
[INFO] [stdout]   --> src/core/connection.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Connection {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub address: SocketAddr,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `address` is never read
[INFO] [stdout]   --> src/core/connection.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Connection {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub address: SocketAddr,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.41s
[INFO] running `Command { std: "docker" "inspect" "c80c0ce364adb813659d01ba366aaa9e1c5b0e440a8fd23afc17cc361b79e466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c80c0ce364adb813659d01ba366aaa9e1c5b0e440a8fd23afc17cc361b79e466", kill_on_drop: false }`
[INFO] [stdout] c80c0ce364adb813659d01ba366aaa9e1c5b0e440a8fd23afc17cc361b79e466