[INFO] cloning repository https://github.com/Windfisch/arpfisch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Windfisch/arpfisch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWindfisch%2Farpfisch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWindfisch%2Farpfisch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e870c783cff0a6e681926933527643bc0b17516
[INFO] checking Windfisch/arpfisch against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWindfisch%2Farpfisch" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Windfisch/arpfisch
[INFO] finished tweaking git repo https://github.com/Windfisch/arpfisch
[INFO] tweaked toml for git repo https://github.com/Windfisch/arpfisch written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Windfisch/arpfisch 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 git repo https://github.com/Windfisch/arpfisch 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 45c22a14ee12d30e5e1f1be3c1acd03dbfc87e46dbecd17a77fb9451f8ea6c3f
[INFO] running `Command { std: "docker" "start" "-a" "45c22a14ee12d30e5e1f1be3c1acd03dbfc87e46dbecd17a77fb9451f8ea6c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45c22a14ee12d30e5e1f1be3c1acd03dbfc87e46dbecd17a77fb9451f8ea6c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45c22a14ee12d30e5e1f1be3c1acd03dbfc87e46dbecd17a77fb9451f8ea6c3f", kill_on_drop: false }`
[INFO] [stdout] 45c22a14ee12d30e5e1f1be3c1acd03dbfc87e46dbecd17a77fb9451f8ea6c3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e70f24e7f8c41d5de1a8de40090d67da4dd1d3c86f2752018ea8713d3b25e6a5
[INFO] running `Command { std: "docker" "start" "-a" "e70f24e7f8c41d5de1a8de40090d67da4dd1d3c86f2752018ea8713d3b25e6a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling semver v1.0.9
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking ringbuf v0.2.4
[INFO] [stderr]     Checking assert_no_alloc v1.1.2
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking indexmap v1.9.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking jack-sys v0.2.0 (https://github.com/Windfisch/rust-jack#d77752bf)
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling heapless v0.7.13
[INFO] [stderr]     Checking jack v0.6.2 (https://github.com/Windfisch/rust-jack#d77752bf)
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling clap_derive v3.2.7
[INFO] [stderr]     Checking clap v3.2.8
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking arpfisch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `time` is never read
[INFO] [stdout]   --> src/driver/mod.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct TimestampedRawMidiEvent {
[INFO] [stdout]    |            ----------------------- field in this struct
[INFO] [stdout] 16 |     pub time: u32,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `2` is never read
[INFO] [stdout]   --> src/grid_controllers/mod.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Up(u8, u8, f32)
[INFO] [stdout]    |     --         ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GridButtonEvent` has derived impls for the traits `Debug` and `Clone`, but these are 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] 11 -     Up(u8, u8, f32)
[INFO] [stdout] 11 +     Up(u8, u8, ())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Blink` is never constructed
[INFO] [stdout]   --> src/grid_controllers/mod.rs:44:2
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub enum LightingMode {
[INFO] [stdout]    |          ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 44 |     Blink(Color),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LightingMode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:51:2
[INFO] [stdout]    |
[INFO] [stdout] 51 |     jack_client_name: String,
[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<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:53:2
[INFO] [stdout]    |
[INFO] [stdout] 53 |     filename: String
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `time` is never read
[INFO] [stdout]   --> src/driver/mod.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct TimestampedRawMidiEvent {
[INFO] [stdout]    |            ----------------------- field in this struct
[INFO] [stdout] 16 |     pub time: u32,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `2` is never read
[INFO] [stdout]   --> src/grid_controllers/mod.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Up(u8, u8, f32)
[INFO] [stdout]    |     --         ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GridButtonEvent` has derived impls for the traits `Debug` and `Clone`, but these are 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] 11 -     Up(u8, u8, f32)
[INFO] [stdout] 11 +     Up(u8, u8, ())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Blink` is never constructed
[INFO] [stdout]   --> src/grid_controllers/mod.rs:44:2
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub enum LightingMode {
[INFO] [stdout]    |          ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 44 |     Blink(Color),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LightingMode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:51:2
[INFO] [stdout]    |
[INFO] [stdout] 51 |     jack_client_name: String,
[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<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:53:2
[INFO] [stdout]    |
[INFO] [stdout] 53 |     filename: String
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `arpfisch` (bin "arpfisch" test) due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `arpfisch` (bin "arpfisch") due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e70f24e7f8c41d5de1a8de40090d67da4dd1d3c86f2752018ea8713d3b25e6a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e70f24e7f8c41d5de1a8de40090d67da4dd1d3c86f2752018ea8713d3b25e6a5", kill_on_drop: false }`
[INFO] [stdout] e70f24e7f8c41d5de1a8de40090d67da4dd1d3c86f2752018ea8713d3b25e6a5
