[INFO] cloning repository https://github.com/endeav0r/muzik
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/endeav0r/muzik" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fendeav0r%2Fmuzik", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fendeav0r%2Fmuzik'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8152cec727e66b522e5a86781c36a2186e6c6fcc
[INFO] checking endeav0r/muzik against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fendeav0r%2Fmuzik" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/endeav0r/muzik on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/endeav0r/muzik
[INFO] finished tweaking git repo https://github.com/endeav0r/muzik
[INFO] tweaked toml for git repo https://github.com/endeav0r/muzik written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/endeav0r/muzik already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8c1335ca9d68ef24580fc84157ad1380386cb1f83c7983f991bc4baefd8b6e30
[INFO] running `Command { std: "docker" "start" "-a" "8c1335ca9d68ef24580fc84157ad1380386cb1f83c7983f991bc4baefd8b6e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c1335ca9d68ef24580fc84157ad1380386cb1f83c7983f991bc4baefd8b6e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c1335ca9d68ef24580fc84157ad1380386cb1f83c7983f991bc4baefd8b6e30", kill_on_drop: false }`
[INFO] [stdout] 8c1335ca9d68ef24580fc84157ad1380386cb1f83c7983f991bc4baefd8b6e30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e2709a6e744453894dcc01f375a69437bc559ca54db618a42a8c83063f5aadf
[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" "9e2709a6e744453894dcc01f375a69437bc559ca54db618a42a8c83063f5aadf", kill_on_drop: false }`
[INFO] [stderr]     Checking muzik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> lib/track.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     sample: Box<Sample>,
[INFO] [stdout]   |                 ^^^^^^ help: use `dyn`: `dyn Sample`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> lib/track.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn sample(&self) -> &Sample { self.sample.as_ref() }
[INFO] [stdout]    |                              ^^^^^^ help: use `dyn`: `dyn Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> lib/lib.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |     sample: Box<Sample>
[INFO] [stdout]    |                 ^^^^^^ help: use `dyn`: `dyn Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> lib/track.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     sample: Box<Sample>,
[INFO] [stdout]   |                 ^^^^^^ help: use `dyn`: `dyn Sample`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> lib/track.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn sample(&self) -> &Sample { self.sample.as_ref() }
[INFO] [stdout]    |                              ^^^^^^ help: use `dyn`: `dyn Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> lib/lib.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |     sample: Box<Sample>
[INFO] [stdout]    |                 ^^^^^^ help: use `dyn`: `dyn Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> lib/lib.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             std::mem::replace(&mut samples[i], (sample * adjustment) as SampleType);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> lib/track.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 std::mem::replace(&mut buf[track_sample.offset() + i], sample);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> lib/lib.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             std::mem::replace(&mut samples[i], (sample * adjustment) as SampleType);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> lib/track.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 std::mem::replace(&mut buf[track_sample.offset() + i], sample);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/main.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/main.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "9e2709a6e744453894dcc01f375a69437bc559ca54db618a42a8c83063f5aadf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e2709a6e744453894dcc01f375a69437bc559ca54db618a42a8c83063f5aadf", kill_on_drop: false }`
[INFO] [stdout] 9e2709a6e744453894dcc01f375a69437bc559ca54db618a42a8c83063f5aadf