[INFO] fetching crate lv2-core 3.0.0...
[INFO] checking lv2-core-3.0.0 against try#306c6aded24f02440063be828ebe601fe5eb8323 for pr-133502-3
[INFO] extracting crate lv2-core 3.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate lv2-core 3.0.0 on toolchain 306c6aded24f02440063be828ebe601fe5eb8323
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lv2-core 3.0.0
[INFO] finished tweaking crates.io crate lv2-core 3.0.0
[INFO] tweaked toml for crates.io crate lv2-core 3.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4644d7ede2e270f944a6a5a0ba145769a921c4e05acd289209fada84c130ae0b
[INFO] running `Command { std: "docker" "start" "-a" "4644d7ede2e270f944a6a5a0ba145769a921c4e05acd289209fada84c130ae0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4644d7ede2e270f944a6a5a0ba145769a921c4e05acd289209fada84c130ae0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4644d7ede2e270f944a6a5a0ba145769a921c4e05acd289209fada84c130ae0b", kill_on_drop: false }`
[INFO] [stdout] 4644d7ede2e270f944a6a5a0ba145769a921c4e05acd289209fada84c130ae0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3a78e05dca733a669208a58370bb6e89e469e974258fac393e7fd6577afc53c
[INFO] running `Command { std: "docker" "start" "-a" "b3a78e05dca733a669208a58370bb6e89e469e974258fac393e7fd6577afc53c", kill_on_drop: false }`
[INFO] [stderr]     Checking lv2-sys v2.0.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling urid-derive v0.1.1
[INFO] [stderr]    Compiling lv2-core-derive v2.1.1
[INFO] [stderr]     Checking urid v0.1.0
[INFO] [stderr]     Checking lv2-core v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/plugin/mod.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         Box::from_raw(instance);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let _ = Box::from_raw(instance);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `feature_a_sys`, `feature_b_sys`, and `feature_c_sys` are never read
[INFO] [stdout]    --> src/feature/mod.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |     struct FeatureTestSetting<'a> {
[INFO] [stdout]     |            ------------------ fields in this struct
[INFO] [stdout] 154 |         pub data_a: Pin<Box<i32>>,
[INFO] [stdout] 155 |         pub feature_a_sys: Pin<Box<::sys::LV2_Feature>>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 156 |         pub data_b: Pin<Box<f32>>,
[INFO] [stdout] 157 |         pub feature_b_sys: Pin<Box<::sys::LV2_Feature>>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 158 |         pub feature_c_sys: Pin<Box<::sys::LV2_Feature>>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/plugin/mod.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         Box::from_raw(instance);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let _ = Box::from_raw(instance);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.40s
[INFO] running `Command { std: "docker" "inspect" "b3a78e05dca733a669208a58370bb6e89e469e974258fac393e7fd6577afc53c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3a78e05dca733a669208a58370bb6e89e469e974258fac393e7fd6577afc53c", kill_on_drop: false }`
[INFO] [stdout] b3a78e05dca733a669208a58370bb6e89e469e974258fac393e7fd6577afc53c