[INFO] fetching crate hexchat-plugin 0.2.13...
[INFO] building hexchat-plugin-0.2.13 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate hexchat-plugin 0.2.13 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate hexchat-plugin 0.2.13 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hexchat-plugin 0.2.13
[INFO] finished tweaking crates.io crate hexchat-plugin 0.2.13
[INFO] tweaked toml for crates.io crate hexchat-plugin 0.2.13 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f97ae050b517c2653c25720f742cad6aac033faaac500a3449708c2086b46f6b
[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" "f97ae050b517c2653c25720f742cad6aac033faaac500a3449708c2086b46f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f97ae050b517c2653c25720f742cad6aac033faaac500a3449708c2086b46f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f97ae050b517c2653c25720f742cad6aac033faaac500a3449708c2086b46f6b", kill_on_drop: false }`
[INFO] [stdout] f97ae050b517c2653c25720f742cad6aac033faaac500a3449708c2086b46f6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", 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] 015f7f307602c2a09d4187fdc7a18f6839fdf14bd9148f96f653251d60b6cb8e
[INFO] running `Command { std: "docker" "start" "-a" "015f7f307602c2a09d4187fdc7a18f6839fdf14bd9148f96f653251d60b6cb8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling hexchat-plugin v0.2.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1225:27
[INFO] [stdout]      |
[INFO] [stdout] 1225 | type CommandHookUd = (Box<Fn(&mut PluginHandle, Word, WordEol) -> Eat + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginInfo);
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle, Word, WordEol) -> Eat + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1227:26
[INFO] [stdout]      |
[INFO] [stdout] 1227 | ...erverHookUd = (Box<Fn(&mut PluginHandle, Word, WordEol, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginI...
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle, Word, WordEol, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1229:25
[INFO] [stdout]      |
[INFO] [stdout] 1229 | type PrintHookUd = (Box<Fn(&mut PluginHandle, Word, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginInfo);
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle, Word, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1231:29
[INFO] [stdout]      |
[INFO] [stdout] 1231 | type TimerHookUd = (Rc<(Box<Fn(&mut PluginHandle) -> bool + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginInfo)>, Rc<Cell<bool>>);
[INFO] [stdout]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle) -> bool + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1396:15
[INFO] [stdout]      |
[INFO] [stdout] 1396 |     plug: Box<Plugin>,
[INFO] [stdout]      |               ^^^^^^ help: use `dyn`: `dyn Plugin`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]     --> src/lib.rs:1447:9
[INFO] [stdout]      |
[INFO] [stdout] 1447 |     let filename = if !(*plugin_name).is_null() {
[INFO] [stdout]      |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `Command { std: "docker" "inspect" "015f7f307602c2a09d4187fdc7a18f6839fdf14bd9148f96f653251d60b6cb8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015f7f307602c2a09d4187fdc7a18f6839fdf14bd9148f96f653251d60b6cb8e", kill_on_drop: false }`
[INFO] [stdout] 015f7f307602c2a09d4187fdc7a18f6839fdf14bd9148f96f653251d60b6cb8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb70c8080e24c0ca9aae01d3b3fc0094a4786c8b187420f785a1cb3b925608e2
[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" "cb70c8080e24c0ca9aae01d3b3fc0094a4786c8b187420f785a1cb3b925608e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling hexchat-plugin v0.2.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1225:27
[INFO] [stdout]      |
[INFO] [stdout] 1225 | type CommandHookUd = (Box<Fn(&mut PluginHandle, Word, WordEol) -> Eat + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginInfo);
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle, Word, WordEol) -> Eat + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1227:26
[INFO] [stdout]      |
[INFO] [stdout] 1227 | ...erverHookUd = (Box<Fn(&mut PluginHandle, Word, WordEol, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginI...
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle, Word, WordEol, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1229:25
[INFO] [stdout]      |
[INFO] [stdout] 1229 | type PrintHookUd = (Box<Fn(&mut PluginHandle, Word, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginInfo);
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle, Word, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1231:29
[INFO] [stdout]      |
[INFO] [stdout] 1231 | type TimerHookUd = (Rc<(Box<Fn(&mut PluginHandle) -> bool + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginInfo)>, Rc<Cell<bool>>);
[INFO] [stdout]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle) -> bool + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1396:15
[INFO] [stdout]      |
[INFO] [stdout] 1396 |     plug: Box<Plugin>,
[INFO] [stdout]      |               ^^^^^^ help: use `dyn`: `dyn Plugin`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]     --> src/lib.rs:1447:9
[INFO] [stdout]      |
[INFO] [stdout] 1447 |     let filename = if !(*plugin_name).is_null() {
[INFO] [stdout]      |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1225:27
[INFO] [stdout]      |
[INFO] [stdout] 1225 | type CommandHookUd = (Box<Fn(&mut PluginHandle, Word, WordEol) -> Eat + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginInfo);
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle, Word, WordEol) -> Eat + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1227:26
[INFO] [stdout]      |
[INFO] [stdout] 1227 | ...erverHookUd = (Box<Fn(&mut PluginHandle, Word, WordEol, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginI...
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle, Word, WordEol, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1229:25
[INFO] [stdout]      |
[INFO] [stdout] 1229 | type PrintHookUd = (Box<Fn(&mut PluginHandle, Word, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginInfo);
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle, Word, EventAttrs) -> Eat + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1231:29
[INFO] [stdout]      |
[INFO] [stdout] 1231 | type TimerHookUd = (Rc<(Box<Fn(&mut PluginHandle) -> bool + ::std::panic::RefUnwindSafe>, *mut internals::Ph, PluginInfo)>, Rc<Cell<bool>>);
[INFO] [stdout]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut PluginHandle) -> bool + ::std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1396:15
[INFO] [stdout]      |
[INFO] [stdout] 1396 |     plug: Box<Plugin>,
[INFO] [stdout]      |               ^^^^^^ help: use `dyn`: `dyn Plugin`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]     --> src/lib.rs:1447:9
[INFO] [stdout]      |
[INFO] [stdout] 1447 |     let filename = if !(*plugin_name).is_null() {
[INFO] [stdout]      |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "cb70c8080e24c0ca9aae01d3b3fc0094a4786c8b187420f785a1cb3b925608e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb70c8080e24c0ca9aae01d3b3fc0094a4786c8b187420f785a1cb3b925608e2", kill_on_drop: false }`
[INFO] [stdout] cb70c8080e24c0ca9aae01d3b3fc0094a4786c8b187420f785a1cb3b925608e2
