[INFO] fetching crate hs-hackathon-car 0.1.4...
[INFO] checking hs-hackathon-car-0.1.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate hs-hackathon-car 0.1.4 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate hs-hackathon-car 0.1.4
[INFO] finished tweaking crates.io crate hs-hackathon-car 0.1.4
[INFO] tweaked toml for crates.io crate hs-hackathon-car 0.1.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hs-hackathon-car 0.1.4 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 113 packages to latest compatible versions
[INFO] [stderr]       Adding i2cdev v0.3.2 (available: v0.6.2)
[INFO] [stderr]       Adding linux-embedded-hal v0.3.2 (available: v0.4.1)
[INFO] [stderr]       Adding pwm-pca9685 v0.2.0 (available: v1.0.0)
[INFO] [stderr]       Adding rppal v0.11.3 (available: v0.22.1)
[INFO] [stderr]       Adding sysfs_gpio v0.5.4 (available: v0.6.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 804e98a4b9dffb4d39b123661fde5c1b550c66666cb54a49f414f7cf06b1f80f
[INFO] running `Command { std: "docker" "start" "-a" "804e98a4b9dffb4d39b123661fde5c1b550c66666cb54a49f414f7cf06b1f80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "804e98a4b9dffb4d39b123661fde5c1b550c66666cb54a49f414f7cf06b1f80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "804e98a4b9dffb4d39b123661fde5c1b550c66666cb54a49f414f7cf06b1f80f", kill_on_drop: false }`
[INFO] [stdout] 804e98a4b9dffb4d39b123661fde5c1b550c66666cb54a49f414f7cf06b1f80f
[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=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9cc1b08cc8d46f3165585558f1502f93bc70702da166fc6a195221ec6f4e464
[INFO] running `Command { std: "docker" "start" "-a" "b9cc1b08cc8d46f3165585558f1502f93bc70702da166fc6a195221ec6f4e464", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling camino v1.2.1
[INFO] [stderr]     Checking memoffset v0.6.5
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]     Checking pwm-pca9685 v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]     Checking sysfs_gpio v0.5.4
[INFO] [stderr]     Checking gpio-cdev v0.5.1
[INFO] [stderr]     Checking i2cdev v0.5.1
[INFO] [stderr]     Checking sysfs_gpio v0.6.2
[INFO] [stderr]     Checking spidev v0.5.2
[INFO] [stderr]     Checking linux-embedded-hal v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling cargo-platform v0.1.9
[INFO] [stderr]    Compiling cargo_metadata v0.14.2
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]    Compiling skeptic v0.13.7
[INFO] [stderr]    Compiling i2cdev v0.3.2
[INFO] [stderr]     Checking hs-hackathon-car v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Stepper1` and `Stepper2` are never constructed
[INFO] [stdout]   --> src/raw/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Motor {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     Stepper1,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 22 |     Stepper2,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Motor` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PositionError` is never constructed
[INFO] [stdout]   --> src/raw/errors.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum MotorError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |     PositionError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MotorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ServoError` is never used
[INFO] [stdout]   --> src/raw/errors.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum ServoError {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, f32>
[INFO] [stdout]    --> src/lib.rs:156:24
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let raw: f32 = (-90.0 * angle.into_inner() + 90.0).try_into()?;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<f32, Infallible>
[INFO] [stdout]    --> src/lib.rs:156:24
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let raw: f32 = (-90.0 * angle.into_inner() + 90.0).try_into()?;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Stepper1` and `Stepper2` are never constructed
[INFO] [stdout]   --> src/raw/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Motor {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     Stepper1,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 22 |     Stepper2,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Motor` 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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hs-hackathon-car` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] warning: variant `PositionError` is never constructed
[INFO] [stdout]   --> src/raw/errors.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum MotorError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |     PositionError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MotorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: enum `ServoError` is never used
[INFO] [stdout]   --> src/raw/errors.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum ServoError {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, f32>
[INFO] [stdout]    --> src/lib.rs:156:24
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let raw: f32 = (-90.0 * angle.into_inner() + 90.0).try_into()?;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<f32, Infallible>
[INFO] [stdout]    --> src/lib.rs:156:24
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let raw: f32 = (-90.0 * angle.into_inner() + 90.0).try_into()?;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hs-hackathon-car` (lib test) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b9cc1b08cc8d46f3165585558f1502f93bc70702da166fc6a195221ec6f4e464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9cc1b08cc8d46f3165585558f1502f93bc70702da166fc6a195221ec6f4e464", kill_on_drop: false }`
[INFO] [stdout] b9cc1b08cc8d46f3165585558f1502f93bc70702da166fc6a195221ec6f4e464