[INFO] cloning repository https://github.com/wanders/sparsnas-openmetrics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wanders/sparsnas-openmetrics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwanders%2Fsparsnas-openmetrics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwanders%2Fsparsnas-openmetrics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 316263b0a0e60b5e759013d88b0c665fcffa45cb
[INFO] checking wanders/sparsnas-openmetrics against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwanders%2Fsparsnas-openmetrics" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wanders/sparsnas-openmetrics 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/wanders/sparsnas-openmetrics
[INFO] finished tweaking git repo https://github.com/wanders/sparsnas-openmetrics
[INFO] tweaked toml for git repo https://github.com/wanders/sparsnas-openmetrics written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wanders/sparsnas-openmetrics 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]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/wanders/sparsnasdecode`
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded spidev v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "fce9a7c25af3f53f50e670f534ffe028017b43c097851b6e2468aea0a98defa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fce9a7c25af3f53f50e670f534ffe028017b43c097851b6e2468aea0a98defa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fce9a7c25af3f53f50e670f534ffe028017b43c097851b6e2468aea0a98defa9", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "14ec43a76a7570fe9c9a0aedc2426f25409aec358cf04be9d33097bed07753ef", kill_on_drop: false }`
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[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking rfm69 v0.4.1
[INFO] [stderr]     Checking sparsnasdecode v0.1.0 (https://github.com/wanders/sparsnasdecode#7bb3a9b5)
[INFO] [stderr]     Checking linux-embedded-hal v0.3.1
[INFO] [stderr]     Checking stderrlog v0.5.1
[INFO] [stderr]    Compiling tokio-macros v1.5.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking pin-project v1.0.8
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking tokio-util v0.6.8
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[INFO] [stderr]     Checking hyper v0.14.14
[INFO] [stderr]     Checking warp v0.3.1
[INFO] [stderr]     Checking sparsnas-openmetrics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/radio.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Pin(linux_embedded_hal::gpio_cdev::Error),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SparsnasRadioError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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] 32 |     Pin(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/radio.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Pin(linux_embedded_hal::gpio_cdev::Error),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SparsnasRadioError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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] 32 |     Pin(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/radio.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     IO(std::io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SparsnasRadioError` 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] 33 |     IO(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/radio.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     IO(std::io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SparsnasRadioError` 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] 33 |     IO(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/openmetric.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | /         self.unit.map_or((), |unit| {
[INFO] [stdout] 64 | |             writeln!(out, "# UNIT {} {}", self.name, unit).unwrap()
[INFO] [stdout] 65 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let _ = self.unit.map_or((), |unit| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/openmetric.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | /         self.unit.map_or((), |unit| {
[INFO] [stdout] 64 | |             writeln!(out, "# UNIT {} {}", self.name, unit).unwrap()
[INFO] [stdout] 65 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let _ = self.unit.map_or((), |unit| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/openmetric.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 | /         self.help.map_or((), |help| {
[INFO] [stdout] 67 | |             writeln!(out, "# HELP {} {}", self.name, help).unwrap()
[INFO] [stdout] 68 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let _ = self.help.map_or((), |help| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/openmetric.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 | /         self.help.map_or((), |help| {
[INFO] [stdout] 67 | |             writeln!(out, "# HELP {} {}", self.name, help).unwrap()
[INFO] [stdout] 68 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let _ = self.help.map_or((), |help| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.13s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.17.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "14ec43a76a7570fe9c9a0aedc2426f25409aec358cf04be9d33097bed07753ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14ec43a76a7570fe9c9a0aedc2426f25409aec358cf04be9d33097bed07753ef", kill_on_drop: false }`
[INFO] [stdout] 14ec43a76a7570fe9c9a0aedc2426f25409aec358cf04be9d33097bed07753ef
[INFO] checking wanders/sparsnas-openmetrics against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwanders%2Fsparsnas-openmetrics" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wanders/sparsnas-openmetrics on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wanders/sparsnas-openmetrics
[INFO] finished tweaking git repo https://github.com/wanders/sparsnas-openmetrics
[INFO] tweaked toml for git repo https://github.com/wanders/sparsnas-openmetrics written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wanders/sparsnas-openmetrics already has a lockfile, it will not be regenerated
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[INFO] running `Command { std: "docker" "inspect" "34b0e455f504a2304388460234cce3781e03a14be32cb6155d01a20705145f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34b0e455f504a2304388460234cce3781e03a14be32cb6155d01a20705145f90", kill_on_drop: false }`
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/radio.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Pin(linux_embedded_hal::gpio_cdev::Error),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SparsnasRadioError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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] 32 |     Pin(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/radio.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Pin(linux_embedded_hal::gpio_cdev::Error),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SparsnasRadioError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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] 32 |     Pin(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/radio.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     IO(std::io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SparsnasRadioError` 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] 33 |     IO(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/radio.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     IO(std::io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SparsnasRadioError` 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] 33 |     IO(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/main.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     Ok(())
[INFO] [stdout]    |     ^^----
[INFO] [stdout]    |       |
[INFO] [stdout]    |       these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/main.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     Ok(())
[INFO] [stdout]    |     ^^----
[INFO] [stdout]    |       |
[INFO] [stdout]    |       these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/radio.rs:197:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |           let mut gpio = Chip::new(&conf.gpiochip)?;
[INFO] [stdout]     |                   ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 114 |
[INFO] [stdout] 115 |           let mut spi = Spidev::open(&conf.spidev)?;
[INFO] [stdout]     |                   --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 123 |           let mut rfm = Rfm69::new_without_cs(spi, Delay {});
[INFO] [stdout]     |                   --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 189 |           let irqevents = gpio
[INFO] [stdout]     |               --------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 197 |           Ok(SparsnasRadio {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 198 | |             rfm,
[INFO] [stdout] 199 | |             irqevents,
[INFO] [stdout] 200 | |             serial,
[INFO] [stdout] 201 | |             pulses_per_kwh: conf.pulses_per_kwh,
[INFO] [stdout] 202 | |         })
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/radio.rs:197:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |           let mut gpio = Chip::new(&conf.gpiochip)?;
[INFO] [stdout]     |                   ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 114 |
[INFO] [stdout] 115 |           let mut spi = Spidev::open(&conf.spidev)?;
[INFO] [stdout]     |                   --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 123 |           let mut rfm = Rfm69::new_without_cs(spi, Delay {});
[INFO] [stdout]     |                   --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 189 |           let irqevents = gpio
[INFO] [stdout]     |               --------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 197 |           Ok(SparsnasRadio {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 198 | |             rfm,
[INFO] [stdout] 199 | |             irqevents,
[INFO] [stdout] 200 | |             serial,
[INFO] [stdout] 201 | |             pulses_per_kwh: conf.pulses_per_kwh,
[INFO] [stdout] 202 | |         })
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/openmetric.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | /         self.unit.map_or((), |unit| {
[INFO] [stdout] 64 | |             writeln!(out, "# UNIT {} {}", self.name, unit).unwrap()
[INFO] [stdout] 65 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let _ = self.unit.map_or((), |unit| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/openmetric.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | /         self.unit.map_or((), |unit| {
[INFO] [stdout] 64 | |             writeln!(out, "# UNIT {} {}", self.name, unit).unwrap()
[INFO] [stdout] 65 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let _ = self.unit.map_or((), |unit| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/openmetric.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 | /         self.help.map_or((), |help| {
[INFO] [stdout] 67 | |             writeln!(out, "# HELP {} {}", self.name, help).unwrap()
[INFO] [stdout] 68 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let _ = self.help.map_or((), |help| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/openmetric.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 | /         self.help.map_or((), |help| {
[INFO] [stdout] 67 | |             writeln!(out, "# HELP {} {}", self.name, help).unwrap()
[INFO] [stdout] 68 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let _ = self.help.map_or((), |help| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sparsnas-openmetrics` (bin "sparsnas-openmetrics" test) due to 3 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `sparsnas-openmetrics` (bin "sparsnas-openmetrics") due to 3 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e6080f8d3e99895458f47f5074230bba2a7a86ab586ee99be84027269e7e1cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6080f8d3e99895458f47f5074230bba2a7a86ab586ee99be84027269e7e1cac", kill_on_drop: false }`
[INFO] [stdout] e6080f8d3e99895458f47f5074230bba2a7a86ab586ee99be84027269e7e1cac