[INFO] cloning repository https://github.com/cmaves/VisualSpectrum [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cmaves/VisualSpectrum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmaves%2FVisualSpectrum", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmaves%2FVisualSpectrum'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2eb385d1c1ffb1b4d9e07ba0ce6b425b5dbdfe72 [INFO] checking cmaves/VisualSpectrum against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmaves%2FVisualSpectrum" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cmaves/VisualSpectrum on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/cmaves/VisualSpectrum [INFO] finished tweaking git repo https://github.com/cmaves/VisualSpectrum [INFO] tweaked toml for git repo https://github.com/cmaves/VisualSpectrum written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/cmaves/VisualSpectrum 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded strength_reduce v0.2.2 [INFO] [stderr] Downloaded random_color v0.4.4 [INFO] [stderr] Downloaded quote v0.5.2 [INFO] [stderr] Downloaded jack-sys v0.2.0 [INFO] [stderr] Downloaded proc-macro2 v0.3.5 [INFO] [stderr] Downloaded jack v0.6.2 [INFO] [stderr] Downloaded clang-sys v0.23.0 [INFO] [stderr] Downloaded rs_ws281x v0.2.3 [INFO] [stderr] Downloaded rustfft v3.0.0 [INFO] [stderr] Downloaded bindgen v0.37.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e663b3f00d3125d084bf45d4b19bb01cfb1dfb22bf9b6baf24c20547c4bb3a8b [INFO] running `Command { std: "docker" "start" "-a" "e663b3f00d3125d084bf45d4b19bb01cfb1dfb22bf9b6baf24c20547c4bb3a8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e663b3f00d3125d084bf45d4b19bb01cfb1dfb22bf9b6baf24c20547c4bb3a8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e663b3f00d3125d084bf45d4b19bb01cfb1dfb22bf9b6baf24c20547c4bb3a8b", kill_on_drop: false }` [INFO] [stdout] e663b3f00d3125d084bf45d4b19bb01cfb1dfb22bf9b6baf24c20547c4bb3a8b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 17c299dcb4c7c9fb4e90ea2da8ef7b6f863b0144eeb0ba7873390183922f0daf [INFO] running `Command { std: "docker" "start" "-a" "17c299dcb4c7c9fb4e90ea2da8ef7b6f863b0144eeb0ba7873390183922f0daf", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling unicode-width v0.1.6 [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling quick-error v1.2.2 [INFO] [stderr] Compiling termcolor v1.0.5 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling proc-macro2 v0.3.5 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling bindgen v0.37.4 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling peeking_take_while v0.1.2 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling libloading v0.4.3 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Compiling serde v1.0.101 [INFO] [stderr] Compiling clang-sys v0.23.0 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking transpose v0.1.0 [INFO] [stderr] Checking strength_reduce v0.2.2 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking jack-sys v0.2.0 [INFO] [stderr] Compiling memchr v1.0.2 [INFO] [stderr] Compiling which v1.0.5 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling nom v3.2.1 [INFO] [stderr] Checking jack v0.6.2 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking random_color v0.4.4 [INFO] [stderr] Compiling cexpr v0.2.3 [INFO] [stderr] Checking rustfft v3.0.0 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling serde_derive v1.0.101 [INFO] [stderr] Compiling env_logger v0.5.13 [INFO] [stderr] Compiling rs_ws281x v0.2.3 [INFO] [stderr] Checking spectrum v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `rs_ws281x` is imported redundantly [INFO] [stdout] --> src/led.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rs_ws281x; [INFO] [stdout] | ^^^^^^^^^ the item `rs_ws281x` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `jack` is imported redundantly [INFO] [stdout] --> src/audio.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use jack; [INFO] [stdout] | ^^^^ the item `jack` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rs_ws281x` is imported redundantly [INFO] [stdout] --> src/led.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rs_ws281x; [INFO] [stdout] | ^^^^^^^^^ the item `rs_ws281x` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `jack` is imported redundantly [INFO] [stdout] --> src/audio.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use jack; [INFO] [stdout] | ^^^^ the item `jack` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `sample_size` and `source` are never read [INFO] [stdout] --> src/audio.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct ActiveProducer { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 10 | sample_size: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 11 | recv: mpsc::Receiver, [INFO] [stdout] 12 | source: ActiveSource [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/audio.rs:28:10 [INFO] [stdout] | [INFO] [stdout] 28 | Jack(jack::AsyncClient) [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 28 | Jack(()) [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `frame_len` and `fps` are never read [INFO] [stdout] --> src/midi.rs:134:5 [INFO] [stdout] | [INFO] [stdout] 131 | pub struct MidiHandler { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 134 | frame_len: u64, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 135 | count: u64, [INFO] [stdout] 136 | fps: u32 [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pulse` is never read [INFO] [stdout] --> src/visualmidi.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct MidiCon { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | pulse: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `so_time` is never read [INFO] [stdout] --> src/visualmidi.rs:136:5 [INFO] [stdout] | [INFO] [stdout] 130 | struct Note { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 136 | so_time: u64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Note` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/led.rs:138:13 [INFO] [stdout] | [INFO] [stdout] 138 | self.controller.render(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 138 | let _ = self.controller.render(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `sample_size` and `source` are never read [INFO] [stdout] --> src/audio.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct ActiveProducer { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 10 | sample_size: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 11 | recv: mpsc::Receiver, [INFO] [stdout] 12 | source: ActiveSource [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/audio.rs:28:10 [INFO] [stdout] | [INFO] [stdout] 28 | Jack(jack::AsyncClient) [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 28 | Jack(()) [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `frame_len` and `fps` are never read [INFO] [stdout] --> src/midi.rs:134:5 [INFO] [stdout] | [INFO] [stdout] 131 | pub struct MidiHandler { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 134 | frame_len: u64, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 135 | count: u64, [INFO] [stdout] 136 | fps: u32 [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pulse` is never read [INFO] [stdout] --> src/visualmidi.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct MidiCon { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | pulse: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `so_time` is never read [INFO] [stdout] --> src/visualmidi.rs:136:5 [INFO] [stdout] | [INFO] [stdout] 130 | struct Note { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 136 | so_time: u64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Note` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/led.rs:138:13 [INFO] [stdout] | [INFO] [stdout] 138 | self.controller.render(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 138 | let _ = self.controller.render(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `clap` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use clap; [INFO] [stdout] | ^^^^ the item `clap` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `clap` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use clap; [INFO] [stdout] | ^^^^ the item `clap` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | midi_con.display(jack_client); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 11 | let _ = midi_con.display(jack_client); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | midi_con.display(jack_client); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 11 | let _ = midi_con.display(jack_client); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.84s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v3.2.1 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "17c299dcb4c7c9fb4e90ea2da8ef7b6f863b0144eeb0ba7873390183922f0daf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17c299dcb4c7c9fb4e90ea2da8ef7b6f863b0144eeb0ba7873390183922f0daf", kill_on_drop: false }` [INFO] [stdout] 17c299dcb4c7c9fb4e90ea2da8ef7b6f863b0144eeb0ba7873390183922f0daf