[INFO] fetching crate system-extensions 0.0.4...
[INFO] testing system-extensions-0.0.4 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate system-extensions 0.0.4 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate system-extensions 0.0.4
[INFO] finished tweaking crates.io crate system-extensions 0.0.4
[INFO] tweaked toml for crates.io crate system-extensions 0.0.4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate system-extensions 0.0.4 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "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" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 100 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.11.1)
[INFO] [stderr]       Adding cocoa v0.24.1 (available: v0.26.1)
[INFO] [stderr]       Adding gtk v0.9.2 (available: v0.18.2)
[INFO] [stderr]       Adding windows v0.8.0 (available: v0.62.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59f2b42f0cdc2aa6d8871a6187a036cbace8637f0c232c7dbe91e9faa626d006
[INFO] running `Command { std: "docker" "start" "-a" "59f2b42f0cdc2aa6d8871a6187a036cbace8637f0c232c7dbe91e9faa626d006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59f2b42f0cdc2aa6d8871a6187a036cbace8637f0c232c7dbe91e9faa626d006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59f2b42f0cdc2aa6d8871a6187a036cbace8637f0c232c7dbe91e9faa626d006", kill_on_drop: false }`
[INFO] [stdout] 59f2b42f0cdc2aa6d8871a6187a036cbace8637f0c232c7dbe91e9faa626d006
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31db1b49a74db02ad92ae0d72691c5146a2adf21ed735cdf3edbb405b6613c83
[INFO] running `Command { std: "docker" "start" "-a" "31db1b49a74db02ad92ae0d72691c5146a2adf21ed735cdf3edbb405b6613c83", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling gio v0.9.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]    Compiling gtk v0.9.2
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling system-extensions v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling gio-sys v0.10.1
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling glib v0.10.3
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linux::*`
[INFO] [stdout]   --> src/internal/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use linux::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Bitflagable` is never used
[INFO] [stdout]  --> src/core.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(crate) trait Bitflagable<T> {
[INFO] [stdout]   |                  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "31db1b49a74db02ad92ae0d72691c5146a2adf21ed735cdf3edbb405b6613c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31db1b49a74db02ad92ae0d72691c5146a2adf21ed735cdf3edbb405b6613c83", kill_on_drop: false }`
[INFO] [stdout] 31db1b49a74db02ad92ae0d72691c5146a2adf21ed735cdf3edbb405b6613c83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d83123c1fa36e9a2d8c832f5c482613f727f634e8ddd83184031556f0048dcd3
[INFO] running `Command { std: "docker" "start" "-a" "d83123c1fa36e9a2d8c832f5c482613f727f634e8ddd83184031556f0048dcd3", kill_on_drop: false }`
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linux::*`
[INFO] [stdout]   --> src/internal/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use linux::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Bitflagable` is never used
[INFO] [stdout]  --> src/core.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(crate) trait Bitflagable<T> {
[INFO] [stdout]   |                  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling system-extensions v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find `notifications` in `internal`
[INFO] [stdout]   --> src/notifications/notification.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |         crate::internal::notifications::send_simple_notification(self);
[INFO] [stdout]    |                          ^^^^^^^^^^^^^ could not find `notifications` in `internal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::CString`
[INFO] [stdout]  --> src/internal/linux/dialogues.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::CString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::Bitflagable`
[INFO] [stdout]  --> src/internal/linux/dialogues.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::core::Bitflagable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::mem`
[INFO] [stdout]  --> src/processes/processes.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::mem;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::OsStr`
[INFO] [stdout]  --> src/metadata/time.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ffi::OsStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::once`
[INFO] [stdout]  --> src/metadata/time.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::once;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::CString`
[INFO] [stdout]  --> src/metadata/attribute.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ffi::CString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]    --> src/lib.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |     use std::fs::File;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Attributes`, `get_attributes`, and `set_attribute`
[INFO] [stdout]    --> src/lib.rs:157:38
[INFO] [stdout]     |
[INFO] [stdout] 157 |     use crate::metadata::attribute::{set_attribute, Attributes, get_attributes};
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]    --> src/lib.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |     use std::io::Write;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/internal/linux/dialogues.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut box_return = match response_type {
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/internal/linux/dialogues.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut box_return = match response_type.into() {
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/metadata/time.rs:297:26
[INFO] [stdout]     |
[INFO] [stdout] 297 | pub fn set_creation_date(file: &Path, create: &FileTime) -> bool {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `create`
[INFO] [stdout]    --> src/metadata/time.rs:297:39
[INFO] [stdout]     |
[INFO] [stdout] 297 | pub fn set_creation_date(file: &Path, create: &FileTime) -> bool {
[INFO] [stdout]     |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_create`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:212:13
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:218:13
[INFO] [stdout]     |
[INFO] [stdout] 218 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 221 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:212:13
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:218:13
[INFO] [stdout]     |
[INFO] [stdout] 218 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 221 |         let mut r = MessageBox::new("This is a test!", "Wow I figured out GTK!")
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `system-extensions` (lib test) due to 1 previous error; 29 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d83123c1fa36e9a2d8c832f5c482613f727f634e8ddd83184031556f0048dcd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d83123c1fa36e9a2d8c832f5c482613f727f634e8ddd83184031556f0048dcd3", kill_on_drop: false }`
[INFO] [stdout] d83123c1fa36e9a2d8c832f5c482613f727f634e8ddd83184031556f0048dcd3
