[INFO] cloning repository https://github.com/suhanyujie/rs-web-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/suhanyujie/rs-web-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frs-web-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frs-web-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44cb113386623b4068a1a69c29a210bccfae5919
[INFO] checking suhanyujie/rs-web-server against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frs-web-server" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/suhanyujie/rs-web-server on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/suhanyujie/rs-web-server
[INFO] finished tweaking git repo https://github.com/suhanyujie/rs-web-server
[INFO] tweaked toml for git repo https://github.com/suhanyujie/rs-web-server written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/suhanyujie/rs-web-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a3bf4d372ec91afaaf768bab8ca6f51e2727f464db1b965d7efa9c903f07bfc
[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" "8a3bf4d372ec91afaaf768bab8ca6f51e2727f464db1b965d7efa9c903f07bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a3bf4d372ec91afaaf768bab8ca6f51e2727f464db1b965d7efa9c903f07bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a3bf4d372ec91afaaf768bab8ca6f51e2727f464db1b965d7efa9c903f07bfc", kill_on_drop: false }`
[INFO] [stdout] 8a3bf4d372ec91afaaf768bab8ca6f51e2727f464db1b965d7efa9c903f07bfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 364ca854b027f51a7d5a1bce76682b86ae6471cb9c6d091e08d71f9fdf54c058
[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" "364ca854b027f51a7d5a1bce76682b86ae6471cb9c6d091e08d71f9fdf54c058", kill_on_drop: false }`
[INFO] [stderr]     Checking web-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable while-let pattern
[INFO] [stdout]   --> src/thread_pool/lib.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | /             while let job = receiver.lock().unwrap().recv().unwrap() {
[INFO] [stdout] 14 | |                 println!("Worker {} got a job; excuting.", id);
[INFO] [stdout] 15 | |                 job();
[INFO] [stdout] 16 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_line`
[INFO] [stdout]   --> src/znet/server.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/znet/server.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable while-let pattern
[INFO] [stdout]   --> src/thread_pool/lib.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | /             while let job = receiver.lock().unwrap().recv().unwrap() {
[INFO] [stdout] 14 | |                 println!("Worker {} got a job; excuting.", id);
[INFO] [stdout] 15 | |                 job();
[INFO] [stdout] 16 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_line`
[INFO] [stdout]   --> src/znet/server.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/znet/server.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_line`
[INFO] [stdout]   --> src/bin/main.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/bin/main.rs:45:23
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `server`
[INFO] [stdout]   --> src/bin/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn server() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_connection`
[INFO] [stdout]   --> src/bin/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn handle_connection(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_line`
[INFO] [stdout]   --> src/bin/main.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/bin/main.rs:45:23
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `server`
[INFO] [stdout]   --> src/bin/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn server() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_connection`
[INFO] [stdout]   --> src/bin/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn handle_connection(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "364ca854b027f51a7d5a1bce76682b86ae6471cb9c6d091e08d71f9fdf54c058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "364ca854b027f51a7d5a1bce76682b86ae6471cb9c6d091e08d71f9fdf54c058", kill_on_drop: false }`
[INFO] [stdout] 364ca854b027f51a7d5a1bce76682b86ae6471cb9c6d091e08d71f9fdf54c058