[INFO] cloning repository https://github.com/tene/exoskeleton
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tene/exoskeleton" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftene%2Fexoskeleton", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftene%2Fexoskeleton'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2ecf58e46840546ab984e8b636ac10cd33ea123
[INFO] checking tene/exoskeleton against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftene%2Fexoskeleton" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tene/exoskeleton on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tene/exoskeleton
[INFO] finished tweaking git repo https://github.com/tene/exoskeleton
[INFO] tweaked toml for git repo https://github.com/tene/exoskeleton written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tene/exoskeleton already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xmlwriter v0.1.0
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[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6277a689f6036bb36034cf9ca4f9b67966265bee7d1cbdd6cac03ddb471cae04
[INFO] running `Command { std: "docker" "start" "-a" "6277a689f6036bb36034cf9ca4f9b67966265bee7d1cbdd6cac03ddb471cae04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6277a689f6036bb36034cf9ca4f9b67966265bee7d1cbdd6cac03ddb471cae04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6277a689f6036bb36034cf9ca4f9b67966265bee7d1cbdd6cac03ddb471cae04", kill_on_drop: false }`
[INFO] [stdout] 6277a689f6036bb36034cf9ca4f9b67966265bee7d1cbdd6cac03ddb471cae04
[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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbe87c1f26cb7255ccf1c38e36ab6fcb17dd3214aec4737aa146886d27d49e5b
[INFO] running `Command { std: "docker" "start" "-a" "dbe87c1f26cb7255ccf1c38e36ab6fcb17dd3214aec4737aa146886d27d49e5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling futures-core v0.3.16
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[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cairo-rs v0.9.1
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[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling druid-derive v0.4.0
[INFO] [stderr]     Checking usvg v0.12.0
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking time v0.2.27
[INFO] [stderr]    Compiling thiserror v1.0.26
[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 gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling pango-sys 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]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking glib v0.10.3
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking rental v0.5.6
[INFO] [stderr]     Checking fluent-bundle v0.12.0
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[INFO] [stderr]     Checking piet-common v0.3.2
[INFO] [stderr]     Checking druid-shell v0.7.0
[INFO] [stderr]     Checking druid v0.7.0
[INFO] [stderr]     Checking exoskeleton v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `dirs` is imported redundantly
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use dirs;
[INFO] [stdout]   |     ^^^^ the item `dirs` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Affine`, `BezPath`, `Button`, `Checkbox`, `Circle`, `FillStrat`, `FixedLinearGradient`, `GradientStop`, `ImageBuf`, `Image`, `InterpolationMode`, `Painter`, `Point`, `ProgressBar`, `RadioGroup`, `Slider`, `Spinner`, `Stepper`, `Switch`, `WidgetPod`
[INFO] [stdout]   --> src/main.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     kurbo::{Affine, BezPath, Circle, Point},
[INFO] [stdout]    |             ^^^^^^  ^^^^^^^  ^^^^^^  ^^^^^
[INFO] [stdout] 12 |     piet::{FixedLinearGradient, GradientStop, InterpolationMode},
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     widget::{
[INFO] [stdout] 14 |         prelude::*, Button, Checkbox, Controller, FillStrat, Flex, Image, Label, List, Painter,
[INFO] [stdout]    |                     ^^^^^^  ^^^^^^^^              ^^^^^^^^^        ^^^^^               ^^^^^^^
[INFO] [stdout] 15 |         ProgressBar, RadioGroup, Scroll, Slider, Spinner, Stepper, Switch, TextBox,
[INFO] [stdout]    |         ^^^^^^^^^^^  ^^^^^^^^^^          ^^^^^^  ^^^^^^^  ^^^^^^^  ^^^^^^
[INFO] [stdout] 16 |     },
[INFO] [stdout] 17 |     AppDelegate, AppLauncher, Code, Color, Data, ImageBuf, KeyEvent, Lens, TextAlignment, Widget,
[INFO] [stdout]    |                                                  ^^^^^^^^
[INFO] [stdout] 18 |     WidgetExt, WidgetPod, WindowDesc,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Widget` is imported redundantly
[INFO] [stdout]   --> src/main.rs:17:91
[INFO] [stdout]    |
[INFO] [stdout] 14 |         prelude::*, Button, Checkbox, Controller, FillStrat, Flex, Image, Label, List, Painter,
[INFO] [stdout]    |         ---------- the item `Widget` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 17 |     AppDelegate, AppLauncher, Code, Color, Data, ImageBuf, KeyEvent, Lens, TextAlignment, Widget,
[INFO] [stdout]    |                                                                                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `dirs` is imported redundantly
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use dirs;
[INFO] [stdout]   |     ^^^^ the item `dirs` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Affine`, `BezPath`, `Button`, `Checkbox`, `Circle`, `FillStrat`, `FixedLinearGradient`, `GradientStop`, `ImageBuf`, `Image`, `InterpolationMode`, `Painter`, `Point`, `ProgressBar`, `RadioGroup`, `Slider`, `Spinner`, `Stepper`, `Switch`, `WidgetPod`
[INFO] [stdout]   --> src/main.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     kurbo::{Affine, BezPath, Circle, Point},
[INFO] [stdout]    |             ^^^^^^  ^^^^^^^  ^^^^^^  ^^^^^
[INFO] [stdout] 12 |     piet::{FixedLinearGradient, GradientStop, InterpolationMode},
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     widget::{
[INFO] [stdout] 14 |         prelude::*, Button, Checkbox, Controller, FillStrat, Flex, Image, Label, List, Painter,
[INFO] [stdout]    |                     ^^^^^^  ^^^^^^^^              ^^^^^^^^^        ^^^^^               ^^^^^^^
[INFO] [stdout] 15 |         ProgressBar, RadioGroup, Scroll, Slider, Spinner, Stepper, Switch, TextBox,
[INFO] [stdout]    |         ^^^^^^^^^^^  ^^^^^^^^^^          ^^^^^^  ^^^^^^^  ^^^^^^^  ^^^^^^
[INFO] [stdout] 16 |     },
[INFO] [stdout] 17 |     AppDelegate, AppLauncher, Code, Color, Data, ImageBuf, KeyEvent, Lens, TextAlignment, Widget,
[INFO] [stdout]    |                                                  ^^^^^^^^
[INFO] [stdout] 18 |     WidgetExt, WidgetPod, WindowDesc,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Widget` is imported redundantly
[INFO] [stdout]   --> src/main.rs:17:91
[INFO] [stdout]    |
[INFO] [stdout] 14 |         prelude::*, Button, Checkbox, Controller, FillStrat, Flex, Image, Label, List, Painter,
[INFO] [stdout]    |         ---------- the item `Widget` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 17 |     AppDelegate, AppLauncher, Code, Color, Data, ImageBuf, KeyEvent, Lens, TextAlignment, Widget,
[INFO] [stdout]    |                                                                                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AppDelegate`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AppDelegate, AppLauncher, Code, Color, Data, ImageBuf, KeyEvent, Lens, TextAlignment, Widget,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AppDelegate`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AppDelegate, AppLauncher, Code, Color, Data, ImageBuf, KeyEvent, Lens, TextAlignment, Widget,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `sample_lines` should have an upper case name
[INFO] [stdout]   --> src/main.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     static ref sample_lines: Vec<String> = {
[INFO] [stdout]    |                ^^^^^^^^^^^^ help: convert the identifier to upper case: `SAMPLE_LINES`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `sample_lines` should have an upper case name
[INFO] [stdout]   --> src/main.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     static ref sample_lines: Vec<String> = {
[INFO] [stdout]    |                ^^^^^^^^^^^^ help: convert the identifier to upper case: `SAMPLE_LINES`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.91s
[INFO] running `Command { std: "docker" "inspect" "dbe87c1f26cb7255ccf1c38e36ab6fcb17dd3214aec4737aa146886d27d49e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbe87c1f26cb7255ccf1c38e36ab6fcb17dd3214aec4737aa146886d27d49e5b", kill_on_drop: false }`
[INFO] [stdout] dbe87c1f26cb7255ccf1c38e36ab6fcb17dd3214aec4737aa146886d27d49e5b