[INFO] cloning repository https://github.com/chenyuanrun/nbdsrv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chenyuanrun/nbdsrv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenyuanrun%2Fnbdsrv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenyuanrun%2Fnbdsrv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61bbb5557335ad06a2923b7738e715f00cb043b2
[INFO] checking chenyuanrun/nbdsrv against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenyuanrun%2Fnbdsrv" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chenyuanrun/nbdsrv on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chenyuanrun/nbdsrv
[INFO] finished tweaking git repo https://github.com/chenyuanrun/nbdsrv
[INFO] tweaked toml for git repo https://github.com/chenyuanrun/nbdsrv written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chenyuanrun/nbdsrv 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctor v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dc064427cc7daf7215afbe2b18b905836c77c35605cf63e500cc9f927ea2f06
[INFO] running `Command { std: "docker" "start" "-a" "6dc064427cc7daf7215afbe2b18b905836c77c35605cf63e500cc9f927ea2f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dc064427cc7daf7215afbe2b18b905836c77c35605cf63e500cc9f927ea2f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc064427cc7daf7215afbe2b18b905836c77c35605cf63e500cc9f927ea2f06", kill_on_drop: false }`
[INFO] [stdout] 6dc064427cc7daf7215afbe2b18b905836c77c35605cf63e500cc9f927ea2f06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86b254ce2c5f70753d32369eccfd7b9c70f0b3ff354a92b4a262284440ae6dc3
[INFO] running `Command { std: "docker" "start" "-a" "86b254ce2c5f70753d32369eccfd7b9c70f0b3ff354a92b4a262284440ae6dc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling ctor v0.2.7
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking nbdsrv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/server.rs:264:40
[INFO] [stdout]     |
[INFO] [stdout] 264 |     async fn handle_request(&mut self, req: Request, sock: &mut TcpStream) -> IoResult<bool> {
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sock`
[INFO] [stdout]    --> src/server.rs:264:54
[INFO] [stdout]     |
[INFO] [stdout] 264 |     async fn handle_request(&mut self, req: Request, sock: &mut TcpStream) -> IoResult<bool> {
[INFO] [stdout]     |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_sock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/server.rs:264:40
[INFO] [stdout]     |
[INFO] [stdout] 264 |     async fn handle_request(&mut self, req: Request, sock: &mut TcpStream) -> IoResult<bool> {
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sock`
[INFO] [stdout]    --> src/server.rs:264:54
[INFO] [stdout]     |
[INFO] [stdout] 264 |     async fn handle_request(&mut self, req: Request, sock: &mut TcpStream) -> IoResult<bool> {
[INFO] [stdout]     |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_sock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]    --> src/server.rs:257:9
[INFO] [stdout]     |
[INFO] [stdout] 257 |         opt: NbdOpt,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/server.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |         data: Vec<u8>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sock`
[INFO] [stdout]    --> src/server.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |         sock: &mut TcpStream,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_sock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]    --> src/server.rs:257:9
[INFO] [stdout]     |
[INFO] [stdout] 257 |         opt: NbdOpt,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/server.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |         data: Vec<u8>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sock`
[INFO] [stdout]    --> src/server.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |         sock: &mut TcpStream,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_sock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.44s
[INFO] running `Command { std: "docker" "inspect" "86b254ce2c5f70753d32369eccfd7b9c70f0b3ff354a92b4a262284440ae6dc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86b254ce2c5f70753d32369eccfd7b9c70f0b3ff354a92b4a262284440ae6dc3", kill_on_drop: false }`
[INFO] [stdout] 86b254ce2c5f70753d32369eccfd7b9c70f0b3ff354a92b4a262284440ae6dc3