[INFO] fetching crate zula-core 4.0.0...
[INFO] checking zula-core-4.0.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate zula-core 4.0.0 into /workspace/builds/worker-3-tc2/source
[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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zula-core 4.0.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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 dirs v5.0.1 (available: v6.0.0)
[INFO] [stderr]       Adding termion v2.0.3 (available: v4.0.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9a994192f9135bf4b7751f1921317d4fc3208e1bea3a7ecce2cd2e00c5e2733
[INFO] running `Command { std: "docker" "start" "-a" "f9a994192f9135bf4b7751f1921317d4fc3208e1bea3a7ecce2cd2e00c5e2733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9a994192f9135bf4b7751f1921317d4fc3208e1bea3a7ecce2cd2e00c5e2733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a994192f9135bf4b7751f1921317d4fc3208e1bea3a7ecce2cd2e00c5e2733", kill_on_drop: false }`
[INFO] [stdout] f9a994192f9135bf4b7751f1921317d4fc3208e1bea3a7ecce2cd2e00c5e2733
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72ec373ca5fac644078a16581967aeea6e7894937e842ff8fa3fec7d25b1b70a
[INFO] running `Command { std: "docker" "start" "-a" "72ec373ca5fac644078a16581967aeea6e7894937e842ff8fa3fec7d25b1b70a", kill_on_drop: false }`
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking termion v2.0.3
[INFO] [stderr]     Checking libloading v0.8.8
[INFO] [stderr]     Checking dirs v5.0.1
[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: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:207:24
[INFO] [stdout]     |
[INFO] [stdout] 207 |     fn from(value: Box<(dyn std::error::Error + Send + Sync + 'static)>) -> Self {
[INFO] [stdout]     |                        ^                                             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 207 -     fn from(value: Box<(dyn std::error::Error + Send + Sync + 'static)>) -> Self {
[INFO] [stdout] 207 +     fn from(value: Box<dyn std::error::Error + Send + Sync + 'static>) -> Self {
[INFO] [stdout]     |
[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: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:207:24
[INFO] [stdout]     |
[INFO] [stdout] 207 |     fn from(value: Box<(dyn std::error::Error + Send + Sync + 'static)>) -> Self {
[INFO] [stdout]     |                        ^                                             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 207 -     fn from(value: Box<(dyn std::error::Error + Send + Sync + 'static)>) -> Self {
[INFO] [stdout] 207 +     fn from(value: Box<dyn std::error::Error + Send + Sync + 'static>) -> Self {
[INFO] [stdout]     |
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "72ec373ca5fac644078a16581967aeea6e7894937e842ff8fa3fec7d25b1b70a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72ec373ca5fac644078a16581967aeea6e7894937e842ff8fa3fec7d25b1b70a", kill_on_drop: false }`
[INFO] [stdout] 72ec373ca5fac644078a16581967aeea6e7894937e842ff8fa3fec7d25b1b70a