[INFO] cloning repository https://github.com/chinmaykumar021/rustmqtt [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chinmaykumar021/rustmqtt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinmaykumar021%2Frustmqtt", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinmaykumar021%2Frustmqtt'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b2ae0b3f80e694e79530962ae7c0e7037c75ca08 [INFO] checking chinmaykumar021/rustmqtt against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinmaykumar021%2Frustmqtt" "/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/chinmaykumar021/rustmqtt 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/chinmaykumar021/rustmqtt [INFO] finished tweaking git repo https://github.com/chinmaykumar021/rustmqtt [INFO] tweaked toml for git repo https://github.com/chinmaykumar021/rustmqtt written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/chinmaykumar021/rustmqtt 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] Updating git repository `https://github.com/eclipse/paho.mqtt.rust.git` [INFO] [stderr] Updating git submodule `https://github.com/eclipse/paho.mqtt.c.git` [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 804b7ee5653e3e6c5bc0ecbff083ee64aafc6a2f347d3fac0b18359dc6f7fe54 [INFO] running `Command { std: "docker" "start" "-a" "804b7ee5653e3e6c5bc0ecbff083ee64aafc6a2f347d3fac0b18359dc6f7fe54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "804b7ee5653e3e6c5bc0ecbff083ee64aafc6a2f347d3fac0b18359dc6f7fe54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "804b7ee5653e3e6c5bc0ecbff083ee64aafc6a2f347d3fac0b18359dc6f7fe54", kill_on_drop: false }` [INFO] [stdout] 804b7ee5653e3e6c5bc0ecbff083ee64aafc6a2f347d3fac0b18359dc6f7fe54 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ceec34eadcef6726d7934c570a0583715829f92bac9e832c3cbf39c0e8c6f6d0 [INFO] running `Command { std: "docker" "start" "-a" "ceec34eadcef6726d7934c570a0583715829f92bac9e832c3cbf39c0e8c6f6d0", kill_on_drop: false }` [INFO] [stderr] Compiling cc v1.0.88 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling pkg-config v0.3.30 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Compiling thiserror v1.0.57 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking futures-timer v3.0.3 [INFO] [stderr] Compiling syn v2.0.51 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling cmake v0.1.50 [INFO] [stderr] Checking concurrent-queue v2.4.0 [INFO] [stderr] Checking crossbeam-channel v0.5.11 [INFO] [stderr] Compiling openssl-sys v0.9.101 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Compiling paho-mqtt-sys v0.9.0 (https://github.com/eclipse/paho.mqtt.rust.git?branch=master#a8618882) [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling thiserror-impl v1.0.57 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking paho-mqtt v0.13.0-pre.0 (https://github.com/eclipse/paho.mqtt.rust.git?branch=master#a8618882) [INFO] [stderr] Checking demo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/sub/main.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| { [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/pub/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| { [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/sub/main.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| { [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/pub/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| { [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.25s [INFO] running `Command { std: "docker" "inspect" "ceec34eadcef6726d7934c570a0583715829f92bac9e832c3cbf39c0e8c6f6d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ceec34eadcef6726d7934c570a0583715829f92bac9e832c3cbf39c0e8c6f6d0", kill_on_drop: false }` [INFO] [stdout] ceec34eadcef6726d7934c570a0583715829f92bac9e832c3cbf39c0e8c6f6d0 [INFO] checking chinmaykumar021/rustmqtt against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinmaykumar021%2Frustmqtt" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/chinmaykumar021/rustmqtt on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/chinmaykumar021/rustmqtt [INFO] finished tweaking git repo https://github.com/chinmaykumar021/rustmqtt [INFO] tweaked toml for git repo https://github.com/chinmaykumar021/rustmqtt written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/chinmaykumar021/rustmqtt 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0ad24dc18ae35b02b23aafe88fbe6deaf93c62da8d9f8558c8894bd674094cd6 [INFO] running `Command { std: "docker" "start" "-a" "0ad24dc18ae35b02b23aafe88fbe6deaf93c62da8d9f8558c8894bd674094cd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0ad24dc18ae35b02b23aafe88fbe6deaf93c62da8d9f8558c8894bd674094cd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ad24dc18ae35b02b23aafe88fbe6deaf93c62da8d9f8558c8894bd674094cd6", kill_on_drop: false }` [INFO] [stdout] 0ad24dc18ae35b02b23aafe88fbe6deaf93c62da8d9f8558c8894bd674094cd6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1f5fd78d66bf02a53ef3675ddc063275ed709665d5ddd72df5bf82df0cc7ffb5 [INFO] running `Command { std: "docker" "start" "-a" "1f5fd78d66bf02a53ef3675ddc063275ed709665d5ddd72df5bf82df0cc7ffb5", kill_on_drop: false }` [INFO] [stderr] Compiling cc v1.0.88 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling pkg-config v0.3.30 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Compiling thiserror v1.0.57 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking futures-timer v3.0.3 [INFO] [stderr] Compiling syn v2.0.51 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking concurrent-queue v2.4.0 [INFO] [stderr] Checking crossbeam-channel v0.5.11 [INFO] [stderr] Compiling cmake v0.1.50 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Compiling openssl-sys v0.9.101 [INFO] [stderr] Compiling paho-mqtt-sys v0.9.0 (https://github.com/eclipse/paho.mqtt.rust.git?branch=master#a8618882) [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling thiserror-impl v1.0.57 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking paho-mqtt v0.13.0-pre.0 (https://github.com/eclipse/paho.mqtt.rust.git?branch=master#a8618882) [INFO] [stderr] Checking demo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/sub/main.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| { [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/sub/main.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| { [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pub/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| { [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/pub/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| { [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.36s [INFO] running `Command { std: "docker" "inspect" "1f5fd78d66bf02a53ef3675ddc063275ed709665d5ddd72df5bf82df0cc7ffb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f5fd78d66bf02a53ef3675ddc063275ed709665d5ddd72df5bf82df0cc7ffb5", kill_on_drop: false }` [INFO] [stdout] 1f5fd78d66bf02a53ef3675ddc063275ed709665d5ddd72df5bf82df0cc7ffb5