[INFO] cloning repository https://github.com/stephan-cr/wlclient-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stephan-cr/wlclient-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephan-cr%2Fwlclient-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephan-cr%2Fwlclient-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c75b895ec9e666cd18b1cc0e92339f0b214b4e6
[INFO] checking stephan-cr/wlclient-rs against try#c86ec274072509d26d0ee52682a0c94ed012ed89 for pr-153027
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephan-cr%2Fwlclient-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/stephan-cr/wlclient-rs
[INFO] finished tweaking git repo https://github.com/stephan-cr/wlclient-rs
[INFO] tweaked toml for git repo https://github.com/stephan-cr/wlclient-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/stephan-cr/wlclient-rs on toolchain c86ec274072509d26d0ee52682a0c94ed012ed89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/stephan-cr/wlclient-rs 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" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.5.1
[INFO] [stderr]   Downloaded enumflags2 v0.7.1
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.0
[INFO] [stderr]   Downloaded libc v0.2.106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7497e8729ac99cd5eb963adcf63c17704dde52d9e202cdb71d2da080a44841eb
[INFO] running `Command { std: "docker" "start" "-a" "7497e8729ac99cd5eb963adcf63c17704dde52d9e202cdb71d2da080a44841eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7497e8729ac99cd5eb963adcf63c17704dde52d9e202cdb71d2da080a44841eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7497e8729ac99cd5eb963adcf63c17704dde52d9e202cdb71d2da080a44841eb", kill_on_drop: false }`
[INFO] [stdout] 7497e8729ac99cd5eb963adcf63c17704dde52d9e202cdb71d2da080a44841eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9975dc03ce0dbd071b6abd928fd0880c9494ce1dc3f27bc8ddd31d048dc1e9c
[INFO] running `Command { std: "docker" "start" "-a" "b9975dc03ce0dbd071b6abd928fd0880c9494ce1dc3f27bc8ddd31d048dc1e9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]    Compiling enumflags2_derive v0.7.0
[INFO] [stderr]    Compiling tokio-macros v1.5.1
[INFO] [stderr]     Checking enumflags2 v0.7.1
[INFO] [stderr]     Checking wlclient v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         loop {
[INFO] [stdout] 156 | |             let n = read_stream.read_buf(&mut response).await?;
[INFO] [stdout] 157 | |             if n == 0 {
[INFO] [stdout] 158 | |                 return Err(std::io::Error::new(
[INFO] [stdout] ...   |
[INFO] [stdout] 210 | |             response = response.split();
[INFO] [stdout] 211 | |         } // loop
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 212 |
[INFO] [stdout] 213 |           Ok::<(), std::io::Error>(())
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         loop {
[INFO] [stdout] 156 | |             let n = read_stream.read_buf(&mut response).await?;
[INFO] [stdout] 157 | |             if n == 0 {
[INFO] [stdout] 158 | |                 return Err(std::io::Error::new(
[INFO] [stdout] ...   |
[INFO] [stdout] 210 | |             response = response.split();
[INFO] [stdout] 211 | |         } // loop
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 212 |
[INFO] [stdout] 213 |           Ok::<(), std::io::Error>(())
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/main.rs:429:56
[INFO] [stdout]     |
[INFO] [stdout] 429 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/main.rs:379:56
[INFO] [stdout]     |
[INFO] [stdout] 379 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opcode`
[INFO] [stdout]    --> src/main.rs:249:43
[INFO] [stdout]     |
[INFO] [stdout] 249 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/main.rs:249:56
[INFO] [stdout]     |
[INFO] [stdout] 249 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/main.rs:223:56
[INFO] [stdout]     |
[INFO] [stdout] 223 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xdg_wm_base_name`
[INFO] [stdout]    --> src/main.rs:319:10
[INFO] [stdout]     |
[INFO] [stdout] 319 |     let (xdg_wm_base_name, xdg_wm_base_version) = {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_xdg_wm_base_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xdg_wm_base_version`
[INFO] [stdout]    --> src/main.rs:319:28
[INFO] [stdout]     |
[INFO] [stdout] 319 |     let (xdg_wm_base_name, xdg_wm_base_version) = {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_xdg_wm_base_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `lookup_by_name` is never used
[INFO] [stdout]   --> src/main.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl ObjectCache {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn lookup_by_name(&self, name: u32) -> Option<&Object> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/main.rs:429:56
[INFO] [stdout]     |
[INFO] [stdout] 429 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/main.rs:379:56
[INFO] [stdout]     |
[INFO] [stdout] 379 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opcode`
[INFO] [stdout]    --> src/main.rs:249:43
[INFO] [stdout]     |
[INFO] [stdout] 249 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/main.rs:249:56
[INFO] [stdout]     |
[INFO] [stdout] 249 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/main.rs:223:56
[INFO] [stdout]     |
[INFO] [stdout] 223 |             move |response: &mut dyn Buf, opcode: u16, length: u16| {
[INFO] [stdout]     |                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xdg_wm_base_name`
[INFO] [stdout]    --> src/main.rs:319:10
[INFO] [stdout]     |
[INFO] [stdout] 319 |     let (xdg_wm_base_name, xdg_wm_base_version) = {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_xdg_wm_base_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xdg_wm_base_version`
[INFO] [stdout]    --> src/main.rs:319:28
[INFO] [stdout]     |
[INFO] [stdout] 319 |     let (xdg_wm_base_name, xdg_wm_base_version) = {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_xdg_wm_base_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `lookup_by_name` is never used
[INFO] [stdout]   --> src/main.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl ObjectCache {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn lookup_by_name(&self, name: u32) -> Option<&Object> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.59s
[INFO] running `Command { std: "docker" "inspect" "b9975dc03ce0dbd071b6abd928fd0880c9494ce1dc3f27bc8ddd31d048dc1e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9975dc03ce0dbd071b6abd928fd0880c9494ce1dc3f27bc8ddd31d048dc1e9c", kill_on_drop: false }`
[INFO] [stdout] b9975dc03ce0dbd071b6abd928fd0880c9494ce1dc3f27bc8ddd31d048dc1e9c
