[INFO] cloning repository https://github.com/hyphent/mqtt-client [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hyphent/mqtt-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyphent%2Fmqtt-client", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyphent%2Fmqtt-client'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c77c2edec25ccb6603f9212db30fd2f9e97b77c2 [INFO] testing hyphent/mqtt-client against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyphent%2Fmqtt-client" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/hyphent/mqtt-client [INFO] finished tweaking git repo https://github.com/hyphent/mqtt-client [INFO] tweaked toml for git repo https://github.com/hyphent/mqtt-client written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/hyphent/mqtt-client on toolchain 562dee4820c458d823175268e41601d4c060588a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/hyphent/mqtt-client 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/hyphent/mqtt-codec` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded signal-hook-registry v1.3.0 [INFO] [stderr] Downloaded uuid v0.8.2 [INFO] [stderr] Downloaded parking_lot_core v0.8.2 [INFO] [stderr] Downloaded tokio-stream v0.1.2 [INFO] [stderr] Downloaded tokio-macros v1.0.0 [INFO] [stderr] Downloaded futures-task v0.3.12 [INFO] [stderr] Downloaded async-stream-impl v0.3.0 [INFO] [stderr] Downloaded async-stream v0.3.0 [INFO] [stderr] Downloaded futures-sink v0.3.12 [INFO] [stderr] Downloaded miow v0.3.6 [INFO] [stderr] Downloaded futures-macro v0.3.12 [INFO] [stderr] Downloaded futures-core v0.3.12 [INFO] [stderr] Downloaded mio v0.7.7 [INFO] [stderr] Downloaded rand v0.8.3 [INFO] [stderr] Downloaded tokio-util v0.6.2 [INFO] [stderr] Downloaded ntapi v0.3.6 [INFO] [stderr] Downloaded futures-util v0.3.12 [INFO] [stderr] Downloaded tokio v1.1.0 [INFO] [stderr] Downloaded libc v0.2.83 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bb3327f6386e9d4e363cd2fe00dad13da1952c477e9dbbb5142fc38c1753e99f [INFO] running `Command { std: "docker" "start" "-a" "bb3327f6386e9d4e363cd2fe00dad13da1952c477e9dbbb5142fc38c1753e99f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bb3327f6386e9d4e363cd2fe00dad13da1952c477e9dbbb5142fc38c1753e99f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb3327f6386e9d4e363cd2fe00dad13da1952c477e9dbbb5142fc38c1753e99f", kill_on_drop: false }` [INFO] [stdout] bb3327f6386e9d4e363cd2fe00dad13da1952c477e9dbbb5142fc38c1753e99f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 43cab14523342bf0bcf584b1933bc6503ff7f7d962ae027e9f3921378834b747 [INFO] running `Command { std: "docker" "start" "-a" "43cab14523342bf0bcf584b1933bc6503ff7f7d962ae027e9f3921378834b747", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.83 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling once_cell v1.5.2 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling futures-core v0.3.12 [INFO] [stderr] Compiling pin-project-lite v0.2.4 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling bytes v1.0.1 [INFO] [stderr] Compiling lock_api v0.4.2 [INFO] [stderr] Compiling tokio v1.1.0 [INFO] [stderr] Compiling futures-sink v0.3.12 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling futures-task v0.3.12 [INFO] [stderr] Compiling parking_lot_core v0.8.2 [INFO] [stderr] Compiling signal-hook-registry v1.3.0 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling mio v0.7.7 [INFO] [stderr] Compiling rand_core v0.6.1 [INFO] [stderr] Compiling uuid v0.8.2 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling tokio-macros v1.0.0 [INFO] [stderr] Compiling async-stream-impl v0.3.0 [INFO] [stderr] Compiling futures-macro v0.3.12 [INFO] [stderr] Compiling async-stream v0.3.0 [INFO] [stderr] Compiling futures-util v0.3.12 [INFO] [stderr] Compiling tokio-stream v0.1.2 [INFO] [stderr] Compiling tokio-util v0.6.2 [INFO] [stderr] Compiling mqtt-codec v0.1.0 (https://github.com/hyphent/mqtt-codec?tag=v0.1.1#2c40d1a4) [INFO] [stderr] Compiling mqtt-client v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:12:11 [INFO] [stdout] | [INFO] [stdout] 12 | IoError(IoError), [INFO] [stdout] | ------- ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `MQTTClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 12 - IoError(IoError), [INFO] [stdout] 12 + IoError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:13:15 [INFO] [stdout] | [INFO] [stdout] 13 | EncodeError(EncodeError), [INFO] [stdout] | ----------- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `MQTTClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 13 - EncodeError(EncodeError), [INFO] [stdout] 13 + EncodeError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:14:15 [INFO] [stdout] | [INFO] [stdout] 14 | DecodeError(DecodeError) [INFO] [stdout] | ----------- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `MQTTClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 14 - DecodeError(DecodeError) [INFO] [stdout] 14 + DecodeError(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:36:24 [INFO] [stdout] | [INFO] [stdout] 36 | Err(f) => { panic!(f.to_string()) } [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 36 | Err(f) => { panic!("{}", f.to_string()) } [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.45s [INFO] running `Command { std: "docker" "inspect" "43cab14523342bf0bcf584b1933bc6503ff7f7d962ae027e9f3921378834b747", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43cab14523342bf0bcf584b1933bc6503ff7f7d962ae027e9f3921378834b747", kill_on_drop: false }` [INFO] [stdout] 43cab14523342bf0bcf584b1933bc6503ff7f7d962ae027e9f3921378834b747 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4dcec521c5d20185362a682049524e252ab1f15fed894fdb02856c398681a9a2 [INFO] running `Command { std: "docker" "start" "-a" "4dcec521c5d20185362a682049524e252ab1f15fed894fdb02856c398681a9a2", kill_on_drop: false }` [INFO] [stderr] Compiling mqtt-client v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:12:11 [INFO] [stdout] | [INFO] [stdout] 12 | IoError(IoError), [INFO] [stdout] | ------- ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `MQTTClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 12 - IoError(IoError), [INFO] [stdout] 12 + IoError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:13:15 [INFO] [stdout] | [INFO] [stdout] 13 | EncodeError(EncodeError), [INFO] [stdout] | ----------- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `MQTTClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 13 - EncodeError(EncodeError), [INFO] [stdout] 13 + EncodeError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:14:15 [INFO] [stdout] | [INFO] [stdout] 14 | DecodeError(DecodeError) [INFO] [stdout] | ----------- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `MQTTClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 14 - DecodeError(DecodeError) [INFO] [stdout] 14 + DecodeError(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:36:24 [INFO] [stdout] | [INFO] [stdout] 36 | Err(f) => { panic!(f.to_string()) } [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 36 | Err(f) => { panic!("{}", f.to_string()) } [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `Command { std: "docker" "inspect" "4dcec521c5d20185362a682049524e252ab1f15fed894fdb02856c398681a9a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4dcec521c5d20185362a682049524e252ab1f15fed894fdb02856c398681a9a2", kill_on_drop: false }` [INFO] [stdout] 4dcec521c5d20185362a682049524e252ab1f15fed894fdb02856c398681a9a2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] eb8d595d1daebdd22596ac510f7392fedd001dffc058c96832c61baeed961cba [INFO] running `Command { std: "docker" "start" "-a" "eb8d595d1daebdd22596ac510f7392fedd001dffc058c96832c61baeed961cba", kill_on_drop: false }` [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/error.rs:12:11 [INFO] [stderr] | [INFO] [stderr] 12 | IoError(IoError), [INFO] [stderr] | ------- ^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `MQTTClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 12 - IoError(IoError), [INFO] [stderr] 12 + IoError(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/error.rs:13:15 [INFO] [stderr] | [INFO] [stderr] 13 | EncodeError(EncodeError), [INFO] [stderr] | ----------- ^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `MQTTClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 13 - EncodeError(EncodeError), [INFO] [stderr] 13 + EncodeError(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/error.rs:14:15 [INFO] [stderr] | [INFO] [stderr] 14 | DecodeError(DecodeError) [INFO] [stderr] | ----------- ^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `MQTTClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 14 - DecodeError(DecodeError) [INFO] [stderr] 14 + DecodeError(()) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: panic message is not a string literal [INFO] [stderr] --> src/main.rs:36:24 [INFO] [stderr] | [INFO] [stderr] 36 | Err(f) => { panic!(f.to_string()) } [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stderr] help: add a "{}" format string to `Display` the message [INFO] [stderr] | [INFO] [stderr] 36 | Err(f) => { panic!("{}", f.to_string()) } [INFO] [stderr] | +++++ [INFO] [stderr] [INFO] [stderr] warning: `mqtt-client` (bin "mqtt-client" test) generated 4 warnings (run `cargo fix --bin "mqtt-client" -p mqtt-client --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mqtt_client-bc758b6a00ce2e04) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mqtt_client-b0c38a3afeb625d7) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests mqtt_client [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "eb8d595d1daebdd22596ac510f7392fedd001dffc058c96832c61baeed961cba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb8d595d1daebdd22596ac510f7392fedd001dffc058c96832c61baeed961cba", kill_on_drop: false }` [INFO] [stdout] eb8d595d1daebdd22596ac510f7392fedd001dffc058c96832c61baeed961cba