[INFO] fetching crate android-auto 0.1.0...
[INFO] checking android-auto-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate android-auto 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate android-auto 0.1.0
[INFO] finished tweaking crates.io crate android-auto 0.1.0
[INFO] tweaked toml for crates.io crate android-auto 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate android-auto 0.1.0 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] crate crates.io crate android-auto 0.1.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 36ec93186f87012bd3e9ecc64aa9a82a45abdf8d8136b49c5a8a43c9457db786
[INFO] running `Command { std: "docker" "start" "-a" "36ec93186f87012bd3e9ecc64aa9a82a45abdf8d8136b49c5a8a43c9457db786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36ec93186f87012bd3e9ecc64aa9a82a45abdf8d8136b49c5a8a43c9457db786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ec93186f87012bd3e9ecc64aa9a82a45abdf8d8136b49c5a8a43c9457db786", kill_on_drop: false }`
[INFO] [stdout] 36ec93186f87012bd3e9ecc64aa9a82a45abdf8d8136b49c5a8a43c9457db786
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 8dd63f2e3aa35a44f4c38acade1bda194c876024303e0be545e26eb61f892fa7
[INFO] running `Command { std: "docker" "start" "-a" "8dd63f2e3aa35a44f4c38acade1bda194c876024303e0be545e26eb61f892fa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling dunce v1.0.5
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking futures-channel v0.3.31
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[INFO] [stderr]    Compiling rustix v0.38.44
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[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]    Compiling anyhow v1.0.98
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[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
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[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling protobuf-support v3.7.2
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]    Compiling darling_macro v0.20.11
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[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling custom_debug_derive v0.6.2
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[INFO] [stderr]     Checking dbus v0.9.7
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
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[INFO] [stderr]     Checking dbus-crossroads v0.5.2
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[INFO] [stderr]    Compiling protobuf-parse v3.7.2
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[INFO] [stderr]    Compiling protobuf-codegen v3.7.2
[INFO] [stderr]    Compiling android-auto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rustls-webpki v0.103.2
[INFO] [stderr]     Checking bluetooth-rust v0.1.0
[INFO] [stdout] warning: variant `InputEvent` is never constructed
[INFO] [stdout]    --> src/lib.rs:554:5
[INFO] [stdout]     |
[INFO] [stdout] 548 | enum InputMessage {
[INFO] [stdout]     |      ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 554 |     InputEvent(ChannelId, Wifi::InputEventIndication),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InputMessage` 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: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:806:14
[INFO] [stdout]     |
[INFO] [stdout] 806 |     Playback(ChannelId, Wifi::MediaInfoChannelPlaybackData),
[INFO] [stdout]     |     -------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MediaStatusMessage` 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] 806 -     Playback(ChannelId, Wifi::MediaInfoChannelPlaybackData),
[INFO] [stdout] 806 +     Playback((), Wifi::MediaInfoChannelPlaybackData),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:808:14
[INFO] [stdout]     |
[INFO] [stdout] 808 |     Metadata(ChannelId, Wifi::MediaInfoChannelMetadataData),
[INFO] [stdout]     |     -------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MediaStatusMessage` 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] 808 -     Metadata(ChannelId, Wifi::MediaInfoChannelMetadataData),
[INFO] [stdout] 808 +     Metadata((), Wifi::MediaInfoChannelMetadataData),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Auth` is never constructed
[INFO] [stdout]   --> src/bluetooth.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum BluetoothMessage {
[INFO] [stdout]    |          ---------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     Auth,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BluetoothMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/lib.rs:291:31
[INFO] [stdout]     |
[INFO] [stdout] 291 |             self.channel_id = ChannelId::try_from(b[0]).ok();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InputEvent` is never constructed
[INFO] [stdout]    --> src/lib.rs:554:5
[INFO] [stdout]     |
[INFO] [stdout] 548 | enum InputMessage {
[INFO] [stdout]     |      ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 554 |     InputEvent(ChannelId, Wifi::InputEventIndication),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InputMessage` 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: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:806:14
[INFO] [stdout]     |
[INFO] [stdout] 806 |     Playback(ChannelId, Wifi::MediaInfoChannelPlaybackData),
[INFO] [stdout]     |     -------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MediaStatusMessage` 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] 806 -     Playback(ChannelId, Wifi::MediaInfoChannelPlaybackData),
[INFO] [stdout] 806 +     Playback((), Wifi::MediaInfoChannelPlaybackData),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:808:14
[INFO] [stdout]     |
[INFO] [stdout] 808 |     Metadata(ChannelId, Wifi::MediaInfoChannelMetadataData),
[INFO] [stdout]     |     -------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MediaStatusMessage` 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] 808 -     Metadata(ChannelId, Wifi::MediaInfoChannelMetadataData),
[INFO] [stdout] 808 +     Metadata((), Wifi::MediaInfoChannelMetadataData),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Auth` is never constructed
[INFO] [stdout]   --> src/bluetooth.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum BluetoothMessage {
[INFO] [stdout]    |          ---------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     Auth,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BluetoothMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `android-auto` (lib) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/lib.rs:291:31
[INFO] [stdout]     |
[INFO] [stdout] 291 |             self.channel_id = ChannelId::try_from(b[0]).ok();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `android-auto` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8dd63f2e3aa35a44f4c38acade1bda194c876024303e0be545e26eb61f892fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dd63f2e3aa35a44f4c38acade1bda194c876024303e0be545e26eb61f892fa7", kill_on_drop: false }`
[INFO] [stdout] 8dd63f2e3aa35a44f4c38acade1bda194c876024303e0be545e26eb61f892fa7
