[INFO] cloning repository https://github.com/vitobasso/rust-synth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vitobasso/rust-synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitobasso%2Frust-synth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitobasso%2Frust-synth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7561a9515b2c2ef8d47d282fe8cf147c456f797
[INFO] checking vitobasso/rust-synth against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitobasso%2Frust-synth" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vitobasso/rust-synth on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vitobasso/rust-synth
[INFO] finished tweaking git repo https://github.com/vitobasso/rust-synth
[INFO] tweaked toml for git repo https://github.com/vitobasso/rust-synth written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/vitobasso/rust-synth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c483a7f2e77f0278da69c4d9d2d3b5bebc608003d244fd5acf58c95fc7a419c1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c483a7f2e77f0278da69c4d9d2d3b5bebc608003d244fd5acf58c95fc7a419c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c483a7f2e77f0278da69c4d9d2d3b5bebc608003d244fd5acf58c95fc7a419c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c483a7f2e77f0278da69c4d9d2d3b5bebc608003d244fd5acf58c95fc7a419c1", kill_on_drop: false }`
[INFO] [stdout] c483a7f2e77f0278da69c4d9d2d3b5bebc608003d244fd5acf58c95fc7a419c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4864f65bb08d31852f2a7e3494deb804634b98f1a02d2fd6693e29b37df0bbc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d4864f65bb08d31852f2a7e3494deb804634b98f1a02d2fd6693e29b37df0bbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking piston-viewport v0.3.0
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[INFO] [stderr]     Checking smallvec v0.6.5
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[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking alsa-sys v0.1.2
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[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking rusttype v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking wayland-sys v0.20.12
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking tempfile v3.0.4
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking wayland-commons v0.20.12
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]    Compiling glium v0.22.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking smithay-client-toolkit v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking winit v0.16.2
[INFO] [stderr]    Compiling conrod_derive v0.1.2
[INFO] [stderr]     Checking rimd v0.0.2 (https://github.com/RustAudio/rimd.git#6e623dbc)
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking conrod v0.61.1
[INFO] [stderr]     Checking rust-synth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/music_theory/pitch.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         (f0 * a.powf(n as f64))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/synth/oscillator.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         (((clock + phase) * freq) % 1.)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/synth/envelope.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             (elapsed / self.attack)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/music_theory/pitch.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         (f0 * a.powf(n as f64))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/synth/oscillator.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         (((clock + phase) * freq) % 1.)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/synth/envelope.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             (elapsed / self.attack)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end`
[INFO] [stdout]    --> src/core/control/song.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     end: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end`
[INFO] [stdout]    --> src/core/control/song.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     end: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/music_theory/pitch.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         (f0 * a.powf(n as f64))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/synth/oscillator.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         (((clock + phase) * freq) % 1.)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/synth/envelope.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             (elapsed / self.attack)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/music_theory/pitch.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         (f0 * a.powf(n as f64))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/synth/oscillator.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         (((clock + phase) * freq) % 1.)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/core/synth/envelope.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             (elapsed / self.attack)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end`
[INFO] [stdout]    --> src/core/control/song.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     end: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end`
[INFO] [stdout]    --> src/core/control/song.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     end: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "d4864f65bb08d31852f2a7e3494deb804634b98f1a02d2fd6693e29b37df0bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4864f65bb08d31852f2a7e3494deb804634b98f1a02d2fd6693e29b37df0bbc", kill_on_drop: false }`
[INFO] [stdout] d4864f65bb08d31852f2a7e3494deb804634b98f1a02d2fd6693e29b37df0bbc