[INFO] cloning repository https://github.com/jvff/rust-things-gateway-adapter-ipc-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jvff/rust-things-gateway-adapter-ipc-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvff%2Frust-things-gateway-adapter-ipc-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvff%2Frust-things-gateway-adapter-ipc-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7d6fb20e3ed86389e381f7cffe0cea38819c35f
[INFO] checking jvff/rust-things-gateway-adapter-ipc-test against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvff%2Frust-things-gateway-adapter-ipc-test" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jvff/rust-things-gateway-adapter-ipc-test on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jvff/rust-things-gateway-adapter-ipc-test
[INFO] finished tweaking git repo https://github.com/jvff/rust-things-gateway-adapter-ipc-test
[INFO] tweaked toml for git repo https://github.com/jvff/rust-things-gateway-adapter-ipc-test written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jvff/rust-things-gateway-adapter-ipc-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2066dbceae2a0a76625f7fa7e15da5cd7e6e6cb383de4e6a2f423bb0ad237684
[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" "2066dbceae2a0a76625f7fa7e15da5cd7e6e6cb383de4e6a2f423bb0ad237684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2066dbceae2a0a76625f7fa7e15da5cd7e6e6cb383de4e6a2f423bb0ad237684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2066dbceae2a0a76625f7fa7e15da5cd7e6e6cb383de4e6a2f423bb0ad237684", kill_on_drop: false }`
[INFO] [stdout] 2066dbceae2a0a76625f7fa7e15da5cd7e6e6cb383de4e6a2f423bb0ad237684
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc10f21c898cdf64c6231c23fca64cec3d07736b618a0ca996b18b25e504aa19
[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" "dc10f21c898cdf64c6231c23fca64cec3d07736b618a0ca996b18b25e504aa19", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling nanomsg-sys v0.7.2
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking nanomsg v0.7.2
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking rust-gateway v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 108 | /     loop {
[INFO] [stdout] 109 | |         socket
[INFO] [stdout] 110 | |             .read_to_string(&mut message)
[INFO] [stdout] 111 | |             .expect("Failed to read from socket");
[INFO] [stdout] ...   |
[INFO] [stdout] 133 | |         message.clear();
[INFO] [stdout] 134 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 135 | 
[INFO] [stdout] 136 |       endpoint.shutdown();
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     loop {
[INFO] [stdout] 147 | |         socket
[INFO] [stdout] 148 | |             .read_to_string(&mut message)
[INFO] [stdout] 149 | |             .expect("Failed to read from plugin socket");
[INFO] [stdout] ...   |
[INFO] [stdout] 156 | |         message.clear();
[INFO] [stdout] 157 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 158 | 
[INFO] [stdout] 159 |       endpoint.shutdown();
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `endpoint`
[INFO] [stdout]    --> src/main.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut endpoint = socket
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_endpoint`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `endpoint`
[INFO] [stdout]    --> src/main.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let mut endpoint = socket
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_endpoint`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut endpoint = socket
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let mut endpoint = socket
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         socket.write_all(reply_message.as_bytes());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 136 |     endpoint.shutdown();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 159 |     endpoint.shutdown();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 108 | /     loop {
[INFO] [stdout] 109 | |         socket
[INFO] [stdout] 110 | |             .read_to_string(&mut message)
[INFO] [stdout] 111 | |             .expect("Failed to read from socket");
[INFO] [stdout] ...   |
[INFO] [stdout] 133 | |         message.clear();
[INFO] [stdout] 134 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 135 | 
[INFO] [stdout] 136 |       endpoint.shutdown();
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     loop {
[INFO] [stdout] 147 | |         socket
[INFO] [stdout] 148 | |             .read_to_string(&mut message)
[INFO] [stdout] 149 | |             .expect("Failed to read from plugin socket");
[INFO] [stdout] ...   |
[INFO] [stdout] 156 | |         message.clear();
[INFO] [stdout] 157 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 158 | 
[INFO] [stdout] 159 |       endpoint.shutdown();
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `endpoint`
[INFO] [stdout]    --> src/main.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut endpoint = socket
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_endpoint`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `endpoint`
[INFO] [stdout]    --> src/main.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let mut endpoint = socket
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_endpoint`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut endpoint = socket
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let mut endpoint = socket
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         socket.write_all(reply_message.as_bytes());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 136 |     endpoint.shutdown();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 159 |     endpoint.shutdown();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.40s
[INFO] running `Command { std: "docker" "inspect" "dc10f21c898cdf64c6231c23fca64cec3d07736b618a0ca996b18b25e504aa19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc10f21c898cdf64c6231c23fca64cec3d07736b618a0ca996b18b25e504aa19", kill_on_drop: false }`
[INFO] [stdout] dc10f21c898cdf64c6231c23fca64cec3d07736b618a0ca996b18b25e504aa19