[INFO] cloning repository https://github.com/derekdreery/image-viewer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derekdreery/image-viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fimage-viewer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fimage-viewer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e54667fcb8b67657c73987257bc2d3327cd3a73
[INFO] checking derekdreery/image-viewer against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fimage-viewer" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/derekdreery/image-viewer on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/derekdreery/image-viewer
[INFO] finished tweaking git repo https://github.com/derekdreery/image-viewer
[INFO] tweaked toml for git repo https://github.com/derekdreery/image-viewer written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/derekdreery/image-viewer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/linebender/druid`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bc791b78cd1a571af4fb448458f411c784f6c52c3837d4f098688bd6d05f597
[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" "2bc791b78cd1a571af4fb448458f411c784f6c52c3837d4f098688bd6d05f597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bc791b78cd1a571af4fb448458f411c784f6c52c3837d4f098688bd6d05f597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc791b78cd1a571af4fb448458f411c784f6c52c3837d4f098688bd6d05f597", kill_on_drop: false }`
[INFO] [stdout] 2bc791b78cd1a571af4fb448458f411c784f6c52c3837d4f098688bd6d05f597
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16e3b37abb0b061bd52a1c472dae4dfa11271e4ce023fcda7cf6351ba494fe9c
[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" "16e3b37abb0b061bd52a1c472dae4dfa11271e4ce023fcda7cf6351ba494fe9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
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[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling cairo-rs v0.9.1
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[INFO] [stderr]     Checking color_quant v1.1.0
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[INFO] [stderr]     Checking scoped_threadpool v0.1.9
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
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[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling standback v0.2.13
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[INFO] [stderr]    Compiling freetype-sys v0.11.0
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[INFO] [stderr]     Checking fluent-langneg v0.13.0
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[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
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[INFO] [stderr]     Checking image v0.23.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling druid-derive v0.3.1 (https://github.com/linebender/druid#0e1e47b6)
[INFO] [stderr]    Compiling druid-lens-compose v0.2.0
[INFO] [stderr]     Checking piet v0.2.0-pre6
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]    Compiling system-deps v1.3.2
[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 cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking glib v0.10.3
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking rental v0.5.5
[INFO] [stderr]     Checking fluent-bundle v0.12.0
[INFO] [stderr]     Checking piet-cairo v0.2.0-pre6
[INFO] [stderr]     Checking piet-common v0.2.0-pre6
[INFO] [stderr]     Checking druid-shell v0.6.0 (https://github.com/linebender/druid#0e1e47b6)
[INFO] [stderr]     Checking druid v0.6.0 (https://github.com/linebender/druid#0e1e47b6)
[INFO] [stderr]     Checking image-viewer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `old_data`
[INFO] [stdout]    --> src/main.rs:174:47
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn update(&mut self, ctx: &mut UpdateCtx, old_data: &T, data: &T, env: &Env) {
[INFO] [stdout]     |                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/widgets.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         data: &mut Option<Arc<ImageBuf>>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/widgets.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         data: &Option<Arc<ImageBuf>>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/widgets.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |         ctx: &mut LayoutCtx,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/widgets.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |         data: &Option<Arc<ImageBuf>>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:266:9
[INFO] [stdout]     |
[INFO] [stdout] 266 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:272:75
[INFO] [stdout]     |
[INFO] [stdout] 272 |     fn paint(&mut self, ctx: &mut PaintCtx, data: &Option<Arc<ImageBuf>>, env: &Env) {
[INFO] [stdout]     |                                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_data`
[INFO] [stdout]    --> src/main.rs:174:47
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn update(&mut self, ctx: &mut UpdateCtx, old_data: &T, data: &T, env: &Env) {
[INFO] [stdout]     |                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/widgets.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         data: &mut Option<Arc<ImageBuf>>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/widgets.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         data: &Option<Arc<ImageBuf>>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/widgets.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |         ctx: &mut LayoutCtx,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/widgets.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |         data: &Option<Arc<ImageBuf>>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:266:9
[INFO] [stdout]     |
[INFO] [stdout] 266 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/widgets.rs:272:75
[INFO] [stdout]     |
[INFO] [stdout] 272 |     fn paint(&mut self, ctx: &mut PaintCtx, data: &Option<Arc<ImageBuf>>, env: &Env) {
[INFO] [stdout]     |                                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scroll_component`
[INFO] [stdout]   --> src/widgets.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     scroll_component: ScrollComponent,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `translate`
[INFO] [stdout]   --> src/widgets.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn translate(&mut self, amt: Vec2, size: Size) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step_animation`
[INFO] [stdout]   --> src/widgets.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn step_animation(&mut self) -> Finished {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Finished`
[INFO] [stdout]    --> src/widgets.rs:308:6
[INFO] [stdout]     |
[INFO] [stdout] 308 | enum Finished {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_finished`
[INFO] [stdout]    --> src/widgets.rs:314:8
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn is_finished(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scale_towards`
[INFO] [stdout]    --> src/widgets.rs:322:4
[INFO] [stdout]     |
[INFO] [stdout] 322 | fn scale_towards(cur: f64, to: f64) -> (f64, f64) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scroll_component`
[INFO] [stdout]   --> src/widgets.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     scroll_component: ScrollComponent,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `translate`
[INFO] [stdout]   --> src/widgets.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn translate(&mut self, amt: Vec2, size: Size) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step_animation`
[INFO] [stdout]   --> src/widgets.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn step_animation(&mut self) -> Finished {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Finished`
[INFO] [stdout]    --> src/widgets.rs:308:6
[INFO] [stdout]     |
[INFO] [stdout] 308 | enum Finished {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_finished`
[INFO] [stdout]    --> src/widgets.rs:314:8
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn is_finished(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scale_towards`
[INFO] [stdout]    --> src/widgets.rs:322:4
[INFO] [stdout]     |
[INFO] [stdout] 322 | fn scale_towards(cur: f64, to: f64) -> (f64, f64) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 30s
[INFO] running `Command { std: "docker" "inspect" "16e3b37abb0b061bd52a1c472dae4dfa11271e4ce023fcda7cf6351ba494fe9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16e3b37abb0b061bd52a1c472dae4dfa11271e4ce023fcda7cf6351ba494fe9c", kill_on_drop: false }`
[INFO] [stdout] 16e3b37abb0b061bd52a1c472dae4dfa11271e4ce023fcda7cf6351ba494fe9c