[INFO] fetching crate druid-ui 0.0.1...
[INFO] checking druid-ui-0.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate druid-ui 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate druid-ui 0.0.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate druid-ui 0.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate druid-ui 0.0.1
[INFO] tweaked toml for crates.io crate druid-ui 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate druid-ui 0.0.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded piet-web v0.6.2
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[INFO] [stderr]   Downloaded druid-shell v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 447252d8f463d44daaaf82b40a984a8d2a5b02fc06c988afb0c45ff8ecd645f1
[INFO] running `Command { std: "docker" "start" "-a" "447252d8f463d44daaaf82b40a984a8d2a5b02fc06c988afb0c45ff8ecd645f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "447252d8f463d44daaaf82b40a984a8d2a5b02fc06c988afb0c45ff8ecd645f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447252d8f463d44daaaf82b40a984a8d2a5b02fc06c988afb0c45ff8ecd645f1", kill_on_drop: false }`
[INFO] [stdout] 447252d8f463d44daaaf82b40a984a8d2a5b02fc06c988afb0c45ff8ecd645f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7f3021168f5bdab710f663ab723b30b8043b51eb1ce1ab86145345735706215
[INFO] running `Command { std: "docker" "start" "-a" "f7f3021168f5bdab710f663ab723b30b8043b51eb1ce1ab86145345735706215", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.188
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[INFO] [stderr]     Checking druid v0.8.3
[INFO] [stderr]     Checking druid-ui v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Data` is imported redundantly
[INFO] [stdout]  --> src/widget/button.rs:5:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use druid::widget::prelude::*;
[INFO] [stdout]   |     ------------------------- the item `Data` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 5 | use druid::{theme, Affine, Data, Insets, LinearGradient, UnitPoint};
[INFO] [stdout]   |                            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Data` is imported redundantly
[INFO] [stdout]  --> src/widget/button.rs:5:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use druid::widget::prelude::*;
[INFO] [stdout]   |     ------------------------- the item `Data` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 5 | use druid::{theme, Affine, Data, Insets, LinearGradient, UnitPoint};
[INFO] [stdout]   |                            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "f7f3021168f5bdab710f663ab723b30b8043b51eb1ce1ab86145345735706215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7f3021168f5bdab710f663ab723b30b8043b51eb1ce1ab86145345735706215", kill_on_drop: false }`
[INFO] [stdout] f7f3021168f5bdab710f663ab723b30b8043b51eb1ce1ab86145345735706215