[INFO] cloning repository https://github.com/Rustifan/server-from-scratch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rustifan/server-from-scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustifan%2Fserver-from-scratch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustifan%2Fserver-from-scratch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1aa44cf88d1d11f8205b37afbfb6543495802597
[INFO] checking Rustifan/server-from-scratch against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustifan%2Fserver-from-scratch" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rustifan/server-from-scratch 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/Rustifan/server-from-scratch
[INFO] finished tweaking git repo https://github.com/Rustifan/server-from-scratch
[INFO] tweaked toml for git repo https://github.com/Rustifan/server-from-scratch written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Rustifan/server-from-scratch 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]  Downloading crates ...
[INFO] [stderr]   Downloaded digest v0.10.6
[INFO] [stderr]   Downloaded cpufeatures v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 850c08b6181f270cb8400123930fdc81605b2446b9ff9885562d1450400a4aaa
[INFO] running `Command { std: "docker" "start" "-a" "850c08b6181f270cb8400123930fdc81605b2446b9ff9885562d1450400a4aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "850c08b6181f270cb8400123930fdc81605b2446b9ff9885562d1450400a4aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "850c08b6181f270cb8400123930fdc81605b2446b9ff9885562d1450400a4aaa", kill_on_drop: false }`
[INFO] [stdout] 850c08b6181f270cb8400123930fdc81605b2446b9ff9885562d1450400a4aaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] af5efed1a4e2671b634e4e74ce1db15dd68249e5ef2b3bc065ba544d7fc28743
[INFO] running `Command { std: "docker" "start" "-a" "af5efed1a4e2671b634e4e74ce1db15dd68249e5ef2b3bc065ba544d7fc28743", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking cpufeatures v0.2.6
[INFO] [stderr]     Checking http v0.1.0 (/opt/rustwide/workdir/http)
[INFO] [stderr]     Checking base64 v0.21.0
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking scenario1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking http_server v0.1.0 (/opt/rustwide/workdir/http_server)
[INFO] [stdout] warning: unused imports: `Mutex`, `slice::Iter`
[INFO] [stdout]  --> http_server/src/web_socket.rs:1:70
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{net::TcpStream, collections::{HashMap, LinkedList}, sync::{Mutex, Arc}, io::Write, slice::Iter};
[INFO] [stdout]   |                                                                      ^^^^^                   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Mutex`, `slice::Iter`
[INFO] [stdout]  --> http_server/src/web_socket.rs:1:70
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{net::TcpStream, collections::{HashMap, LinkedList}, sync::{Mutex, Arc}, io::Write, slice::Iter};
[INFO] [stdout]   |                                                                      ^^^^^                   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Write`
[INFO] [stdout]  --> http_server/src/web_socket.rs:1:83
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{net::TcpStream, collections::{HashMap, LinkedList}, sync::{Mutex, Arc}, io::Write, slice::Iter};
[INFO] [stdout]   |                                                                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]   --> http_server/src/server.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Connection {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn write(&mut self, data: &[u8])-> Result<(), Error>{
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send_to_all` is never used
[INFO] [stdout]   --> http_server/src/web_socket.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl WebSocketConnections{
[INFO] [stdout]    | ------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn send_to_all(&mut self, buf: &[u8]){
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Write`
[INFO] [stdout]  --> http_server/src/web_socket.rs:1:83
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{net::TcpStream, collections::{HashMap, LinkedList}, sync::{Mutex, Arc}, io::Write, slice::Iter};
[INFO] [stdout]   |                                                                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]   --> http_server/src/server.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Connection {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn write(&mut self, data: &[u8])-> Result<(), Error>{
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send_to_all` is never used
[INFO] [stdout]   --> http_server/src/web_socket.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl WebSocketConnections{
[INFO] [stdout]    | ------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn send_to_all(&mut self, buf: &[u8]){
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `Command { std: "docker" "inspect" "af5efed1a4e2671b634e4e74ce1db15dd68249e5ef2b3bc065ba544d7fc28743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af5efed1a4e2671b634e4e74ce1db15dd68249e5ef2b3bc065ba544d7fc28743", kill_on_drop: false }`
[INFO] [stdout] af5efed1a4e2671b634e4e74ce1db15dd68249e5ef2b3bc065ba544d7fc28743