[INFO] fetching crate zula-core 4.0.0...
[INFO] building zula-core-4.0.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[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 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] [stderr]       Adding termion v2.0.3 (available: v4.0.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7a2ab1b678e013631b1526abca6c04067238079da04acff1d56acba29f8b52d
[INFO] running `Command { std: "docker" "start" "-a" "e7a2ab1b678e013631b1526abca6c04067238079da04acff1d56acba29f8b52d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7a2ab1b678e013631b1526abca6c04067238079da04acff1d56acba29f8b52d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a2ab1b678e013631b1526abca6c04067238079da04acff1d56acba29f8b52d", kill_on_drop: false }`
[INFO] [stdout] e7a2ab1b678e013631b1526abca6c04067238079da04acff1d56acba29f8b52d
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40cf8656d13f070cffdb166bf85eba243641aa4d4bbf628f5e237b34c7b5d5f7
[INFO] running `Command { std: "docker" "start" "-a" "40cf8656d13f070cffdb166bf85eba243641aa4d4bbf628f5e237b34c7b5d5f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling libloading v0.8.6
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling termion v2.0.3
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling 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: 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 0.41s
[INFO] running `Command { std: "docker" "inspect" "40cf8656d13f070cffdb166bf85eba243641aa4d4bbf628f5e237b34c7b5d5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40cf8656d13f070cffdb166bf85eba243641aa4d4bbf628f5e237b34c7b5d5f7", kill_on_drop: false }`
[INFO] [stdout] 40cf8656d13f070cffdb166bf85eba243641aa4d4bbf628f5e237b34c7b5d5f7
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68f2c8bd640e2b8c1946ac3cb26261a49677d9d0c15cbe6cca722ec456454f95
[INFO] running `Command { std: "docker" "start" "-a" "68f2c8bd640e2b8c1946ac3cb26261a49677d9d0c15cbe6cca722ec456454f95", kill_on_drop: false }`
[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: 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]    Compiling 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 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "68f2c8bd640e2b8c1946ac3cb26261a49677d9d0c15cbe6cca722ec456454f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f2c8bd640e2b8c1946ac3cb26261a49677d9d0c15cbe6cca722ec456454f95", kill_on_drop: false }`
[INFO] [stdout] 68f2c8bd640e2b8c1946ac3cb26261a49677d9d0c15cbe6cca722ec456454f95