[INFO] fetching crate thermostat 0.0.2...
[INFO] testing thermostat-0.0.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate thermostat 0.0.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate thermostat 0.0.2
[INFO] finished tweaking crates.io crate thermostat 0.0.2
[INFO] tweaked toml for crates.io crate thermostat 0.0.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate thermostat 0.0.2 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd24585c4d13840ef5a28eb62d77684c334cc993364d9423e2879cff63dc1301
[INFO] running `Command { std: "docker" "start" "-a" "dd24585c4d13840ef5a28eb62d77684c334cc993364d9423e2879cff63dc1301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd24585c4d13840ef5a28eb62d77684c334cc993364d9423e2879cff63dc1301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd24585c4d13840ef5a28eb62d77684c334cc993364d9423e2879cff63dc1301", kill_on_drop: false }`
[INFO] [stdout] dd24585c4d13840ef5a28eb62d77684c334cc993364d9423e2879cff63dc1301
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 572939201ebc7cc8f3949a00b62451ea83947846e67cc1cdc5312ae04bf554c9
[INFO] running `Command { std: "docker" "start" "-a" "572939201ebc7cc8f3949a00b62451ea83947846e67cc1cdc5312ae04bf554c9", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling thermostat v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:189:20
[INFO] [stdout]     |
[INFO] [stdout] 189 |     interface: &'a ThermostatInterface,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 189 |     interface: &'a dyn ThermostatInterface,
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:235:28
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &dyn ThermostatInterface) -> Thermostat {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `maximum_heat_run_secs`, `maximum_cool_run_secs`, and `maximum_fan_run_secs` are never read
[INFO] [stdout]    --> src/lib.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub struct Thermostat<'a> {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 197 |     maximum_heat_run_secs: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     maximum_cool_run_secs: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 203 |     maximum_fan_run_secs: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Thermostat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fan` is never used
[INFO] [stdout]    --> src/lib.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 233 | impl<'a> Thermostat<'a> {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 450 |     fn fan(&mut self) -> Result<(), Error> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:235:27
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat<'_> {
[INFO] [stdout]     |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "572939201ebc7cc8f3949a00b62451ea83947846e67cc1cdc5312ae04bf554c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "572939201ebc7cc8f3949a00b62451ea83947846e67cc1cdc5312ae04bf554c9", kill_on_drop: false }`
[INFO] [stdout] 572939201ebc7cc8f3949a00b62451ea83947846e67cc1cdc5312ae04bf554c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e96da9bd4f9ba963c5bef011a4fce1c39b6a118990c271b70e8ead07b39d3e0
[INFO] running `Command { std: "docker" "start" "-a" "9e96da9bd4f9ba963c5bef011a4fce1c39b6a118990c271b70e8ead07b39d3e0", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:189:20
[INFO] [stdout]     |
[INFO] [stdout] 189 |     interface: &'a ThermostatInterface,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 189 |     interface: &'a dyn ThermostatInterface,
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:235:28
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &dyn ThermostatInterface) -> Thermostat {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `maximum_heat_run_secs`, `maximum_cool_run_secs`, and `maximum_fan_run_secs` are never read
[INFO] [stdout]    --> src/lib.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub struct Thermostat<'a> {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 197 |     maximum_heat_run_secs: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     maximum_cool_run_secs: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 203 |     maximum_fan_run_secs: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Thermostat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fan` is never used
[INFO] [stdout]    --> src/lib.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 233 | impl<'a> Thermostat<'a> {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 450 |     fn fan(&mut self) -> Result<(), Error> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:235:27
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat<'_> {
[INFO] [stdout]     |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thermostat v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:189:20
[INFO] [stdout]     |
[INFO] [stdout] 189 |     interface: &'a ThermostatInterface,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 189 |     interface: &'a dyn ThermostatInterface,
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:235:28
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &dyn ThermostatInterface) -> Thermostat {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `maximum_heat_run_secs`, `maximum_cool_run_secs`, and `maximum_fan_run_secs` are never read
[INFO] [stdout]    --> src/lib.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub struct Thermostat<'a> {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 197 |     maximum_heat_run_secs: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     maximum_cool_run_secs: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 203 |     maximum_fan_run_secs: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Thermostat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fan` is never used
[INFO] [stdout]    --> src/lib.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 233 | impl<'a> Thermostat<'a> {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 450 |     fn fan(&mut self) -> Result<(), Error> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:235:27
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat<'_> {
[INFO] [stdout]     |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "9e96da9bd4f9ba963c5bef011a4fce1c39b6a118990c271b70e8ead07b39d3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e96da9bd4f9ba963c5bef011a4fce1c39b6a118990c271b70e8ead07b39d3e0", kill_on_drop: false }`
[INFO] [stdout] 9e96da9bd4f9ba963c5bef011a4fce1c39b6a118990c271b70e8ead07b39d3e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fe9f1827d16f10a41f1a898c0a0779eae248a1808ef26f5866004da3b7eb47f3
[INFO] running `Command { std: "docker" "start" "-a" "fe9f1827d16f10a41f1a898c0a0779eae248a1808ef26f5866004da3b7eb47f3", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:189:20
[INFO] [stderr]     |
[INFO] [stderr] 189 |     interface: &'a ThermostatInterface,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 189 |     interface: &'a dyn ThermostatInterface,
[INFO] [stderr]     |                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:235:28
[INFO] [stderr]     |
[INFO] [stderr] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 235 |     pub fn new(interface: &dyn ThermostatInterface) -> Thermostat {
[INFO] [stderr]     |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: fields `maximum_heat_run_secs`, `maximum_cool_run_secs`, and `maximum_fan_run_secs` are never read
[INFO] [stderr]    --> src/lib.rs:197:5
[INFO] [stderr]     |
[INFO] [stderr] 182 | pub struct Thermostat<'a> {
[INFO] [stderr]     |            ---------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 197 |     maximum_heat_run_secs: u32,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 200 |     maximum_cool_run_secs: u32,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 203 |     maximum_fan_run_secs: u32,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Thermostat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `fan` is never used
[INFO] [stderr]    --> src/lib.rs:450:8
[INFO] [stderr]     |
[INFO] [stderr] 233 | impl<'a> Thermostat<'a> {
[INFO] [stderr]     | ----------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 450 |     fn fan(&mut self) -> Result<(), Error> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:235:27
[INFO] [stderr]     |
[INFO] [stderr] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 235 |     pub fn new(interface: &ThermostatInterface) -> Thermostat<'_> {
[INFO] [stderr]     |                                                              ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `thermostat` (lib) generated 5 warnings (run `cargo fix --lib -p thermostat` to apply 3 suggestions)
[INFO] [stderr] warning: `thermostat` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/thermostat-cce36b1951285502)
[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 tests/thermostat.rs (/opt/rustwide/target/debug/deps/thermostat-ba05469cfcd951a9)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test thermo_changes_maximum_set_temperature ... ok
[INFO] [stdout] test thermo_changes_minimum_safe_temperature ... ok
[INFO] [stdout] test thermo_default_uses_default_values ... ok
[INFO] [stdout] test thermo_changes_operating_mode ... ok
[INFO] [stdout] test thermo_changes_minimum_set_temperature ... ok
[INFO] [stdout] test thermo_changes_maximum_safe_temperature ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests thermostat
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 29) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fe9f1827d16f10a41f1a898c0a0779eae248a1808ef26f5866004da3b7eb47f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe9f1827d16f10a41f1a898c0a0779eae248a1808ef26f5866004da3b7eb47f3", kill_on_drop: false }`
[INFO] [stdout] fe9f1827d16f10a41f1a898c0a0779eae248a1808ef26f5866004da3b7eb47f3
