[INFO] fetching crate zula-core 4.0.0...
[INFO] checking zula-core-4.0.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate zula-core 4.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate zula-core 4.0.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zula-core 4.0.0
[INFO] finished tweaking crates.io crate zula-core 4.0.0
[INFO] tweaked toml for crates.io crate zula-core 4.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 42 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding libredox v0.0.2 (latest: v0.1.3)
[INFO] [stderr]       Adding numtoa v0.1.0 (latest: v0.2.4)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.3)
[INFO] [stderr]       Adding termion v2.0.3 (latest: v4.0.2)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.59.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2ad7c91f68f548b2de71a070ca344c49e00182c7f86c981d2cba7c861c8a541
[INFO] running `Command { std: "docker" "start" "-a" "c2ad7c91f68f548b2de71a070ca344c49e00182c7f86c981d2cba7c861c8a541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2ad7c91f68f548b2de71a070ca344c49e00182c7f86c981d2cba7c861c8a541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2ad7c91f68f548b2de71a070ca344c49e00182c7f86c981d2cba7c861c8a541", kill_on_drop: false }`
[INFO] [stdout] c2ad7c91f68f548b2de71a070ca344c49e00182c7f86c981d2cba7c861c8a541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cc4066906472591c1f2a3b3ec924943abd868b2f09884d633f022acd7221acc
[INFO] running `Command { std: "docker" "start" "-a" "0cc4066906472591c1f2a3b3ec924943abd868b2f09884d633f022acd7221acc", kill_on_drop: false }`
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking libloading v0.8.5
[INFO] [stderr]     Checking termion v2.0.3
[INFO] [stderr]     Checking zula-core v4.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DerefMut` and `path::Path`
[INFO] [stdout]  --> src/plug.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ops::{Deref, DerefMut},
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout] 5 |     path::Path, mem::ManuallyDrop,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `path::Path`
[INFO] [stdout]  --> src/plug.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ops::{Deref, DerefMut},
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout] 5 |     path::Path, mem::ManuallyDrop,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hook`
[INFO] [stdout]   --> src/plug.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let hook = unsafe { PluginHook::new("/home/jamie/.config/zula/plugins/libtest_plugin.so") }.unwrap();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_hook`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hook` and `path` are never read
[INFO] [stdout]   --> src/plug.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct PluginHook {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 28 |     hook: libloading::Library,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 29 |     obj: ManuallyDrop<Box<dyn Plugin>>,
[INFO] [stdout] 30 |     path: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hook` and `path` are never read
[INFO] [stdout]   --> src/plug.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct PluginHook {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 28 |     hook: libloading::Library,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 29 |     obj: ManuallyDrop<Box<dyn Plugin>>,
[INFO] [stdout] 30 |     path: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 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 0.90s
[INFO] running `Command { std: "docker" "inspect" "0cc4066906472591c1f2a3b3ec924943abd868b2f09884d633f022acd7221acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cc4066906472591c1f2a3b3ec924943abd868b2f09884d633f022acd7221acc", kill_on_drop: false }`
[INFO] [stdout] 0cc4066906472591c1f2a3b3ec924943abd868b2f09884d633f022acd7221acc