[INFO] cloning repository https://github.com/jeremyvii/savoy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeremyvii/savoy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremyvii%2Fsavoy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremyvii%2Fsavoy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c5d1a7af69838800b2375da7c9bf7bac58e9776
[INFO] checking jeremyvii/savoy against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremyvii%2Fsavoy" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeremyvii/savoy on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeremyvii/savoy
[INFO] finished tweaking git repo https://github.com/jeremyvii/savoy
[INFO] tweaked toml for git repo https://github.com/jeremyvii/savoy written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jeremyvii/savoy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a7a19aa14fb432dd8773e0c1a6f9527c4ac49cf9a2916f378065ff1974cbc3c
[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" "9a7a19aa14fb432dd8773e0c1a6f9527c4ac49cf9a2916f378065ff1974cbc3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a7a19aa14fb432dd8773e0c1a6f9527c4ac49cf9a2916f378065ff1974cbc3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a7a19aa14fb432dd8773e0c1a6f9527c4ac49cf9a2916f378065ff1974cbc3c", kill_on_drop: false }`
[INFO] [stdout] 9a7a19aa14fb432dd8773e0c1a6f9527c4ac49cf9a2916f378065ff1974cbc3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 310ec0180bec93fc6ccacef82670a52404baaa23f90875fa64401064b15ccd3e
[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" "310ec0180bec93fc6ccacef82670a52404baaa23f90875fa64401064b15ccd3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking vst v0.2.1
[INFO] [stderr]     Checking savoy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `EnvelopeStage`, `Envelope`
[INFO] [stdout]   --> src/lib.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | use envelope::{Envelope, EnvelopeStage};
[INFO] [stdout]    |                ^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sustain`
[INFO] [stdout]    --> src/lib.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let sustain: f64 = self.params.sustain.get().into();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sustain`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signal`
[INFO] [stdout]   --> src/envelope.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn process(&mut self, signal: f64, stage: EnvelopeStage) {
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `EnvelopeStage`
[INFO] [stdout]  --> src/envelope.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum EnvelopeStage {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Envelope`
[INFO] [stdout]   --> src/envelope.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Envelope {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `multiplier`
[INFO] [stdout]   --> src/envelope.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn multiplier(start: f64, end: f64, length: f64) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `process`
[INFO] [stdout]   --> src/envelope.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn process(&mut self, signal: f64, stage: EnvelopeStage) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `envelope_multiplier`
[INFO] [stdout]    --> src/lib.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn envelope_multiplier(start: f64, end: f64, length: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `envelope`
[INFO] [stdout]    --> src/lib.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn envelope(&self, signal: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EnvelopeStage`, `Envelope`
[INFO] [stdout]   --> src/lib.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | use envelope::{Envelope, EnvelopeStage};
[INFO] [stdout]    |                ^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sustain`
[INFO] [stdout]    --> src/lib.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let sustain: f64 = self.params.sustain.get().into();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sustain`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signal`
[INFO] [stdout]   --> src/envelope.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn process(&mut self, signal: f64, stage: EnvelopeStage) {
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `EnvelopeStage`
[INFO] [stdout]  --> src/envelope.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum EnvelopeStage {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Envelope`
[INFO] [stdout]   --> src/envelope.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Envelope {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `multiplier`
[INFO] [stdout]   --> src/envelope.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn multiplier(start: f64, end: f64, length: f64) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `process`
[INFO] [stdout]   --> src/envelope.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn process(&mut self, signal: f64, stage: EnvelopeStage) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `envelope_multiplier`
[INFO] [stdout]    --> src/lib.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn envelope_multiplier(start: f64, end: f64, length: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `envelope`
[INFO] [stdout]    --> src/lib.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn envelope(&self, signal: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.64s
[INFO] running `Command { std: "docker" "inspect" "310ec0180bec93fc6ccacef82670a52404baaa23f90875fa64401064b15ccd3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "310ec0180bec93fc6ccacef82670a52404baaa23f90875fa64401064b15ccd3e", kill_on_drop: false }`
[INFO] [stdout] 310ec0180bec93fc6ccacef82670a52404baaa23f90875fa64401064b15ccd3e