[INFO] cloning repository https://github.com/loaden/rust-flutter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/loaden/rust-flutter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floaden%2Frust-flutter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floaden%2Frust-flutter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0b280935a7c505b4658ac9e72b9a362270c905f
[INFO] checking loaden/rust-flutter against master#31a9463c6e2794a59ce57a8f37abc6966afc2a58 for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floaden%2Frust-flutter" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/loaden/rust-flutter
[INFO] finished tweaking git repo https://github.com/loaden/rust-flutter
[INFO] tweaked toml for git repo https://github.com/loaden/rust-flutter written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/loaden/rust-flutter on toolchain 31a9463c6e2794a59ce57a8f37abc6966afc2a58
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/loaden/rust-flutter 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" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `wgpu`.
[INFO] [stderr]     ... required by package `iced_wgpu v0.14.0`
[INFO] [stderr]     ... which satisfies dependency `iced_wgpu = "^0.14.0"` of package `iced_renderer v0.14.0`
[INFO] [stderr]     ... which satisfies dependency `iced_renderer = "^0.14.0"` of package `iced v0.14.0`
[INFO] [stderr]     ... which satisfies dependency `iced = "^0.14.0"` of package `e30-iced v0.1.0 (/workspace/builds/worker-4-tc1/source/rust/e30-iced)`
[INFO] [stderr] versions that meet the requirements `^27.0` are: 27.0.1, 27.0.0
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `wgpu v0.16.0`
[INFO] [stderr]     ... which satisfies dependency `wgpu = "^0.16"` of package `iced_wgpu v0.11.0`
[INFO] [stderr]     ... which satisfies dependency `iced_wgpu = "^0.11"` of package `iced_renderer v0.1.0`
[INFO] [stderr]     ... which satisfies dependency `iced_renderer = "^0.1"` of package `iced v0.10.0`
[INFO] [stderr]     ... which satisfies dependency `iced = "^0.10.0"` of package `e40-canvas v0.1.0 (/workspace/builds/worker-4-tc1/source/rust/e40-canvas)`
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `glyphon v0.3.0`
[INFO] [stderr]     ... which satisfies dependency `glyphon = "^0.3"` of package `iced_wgpu v0.11.0`
[INFO] [stderr]     ... which satisfies dependency `iced_wgpu = "^0.11"` of package `iced_renderer v0.1.0`
[INFO] [stderr]     ... which satisfies dependency `iced_renderer = "^0.1"` of package `iced v0.10.0`
[INFO] [stderr]     ... which satisfies dependency `iced = "^0.10.0"` of package `e40-canvas v0.1.0 (/workspace/builds/worker-4-tc1/source/rust/e40-canvas)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `wgpu` which could resolve this conflict


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: command failed: exit status: 101
       
           Updating crates.io index
       error: failed to select a version for `wgpu`.
           ... required by package `iced_wgpu v0.14.0`
           ... which satisfies dependency `iced_wgpu = "^0.14.0"` of package `iced_renderer v0.14.0`
           ... which satisfies dependency `iced_renderer = "^0.14.0"` of package `iced v0.14.0`
           ... which satisfies dependency `iced = "^0.14.0"` of package `e30-iced v0.1.0 (/workspace/builds/worker-4-tc1/source/rust/e30-iced)`
       versions that meet the requirements `^27.0` are: 27.0.1, 27.0.0
       
       all possible versions conflict with previously selected packages
       
         previously selected package `wgpu v0.16.0`
           ... which satisfies dependency `wgpu = "^0.16"` of package `iced_wgpu v0.11.0`
           ... which satisfies dependency `iced_wgpu = "^0.11"` of package `iced_renderer v0.1.0`
           ... which satisfies dependency `iced_renderer = "^0.1"` of package `iced v0.10.0`
           ... which satisfies dependency `iced = "^0.10.0"` of package `e40-canvas v0.1.0 (/workspace/builds/worker-4-tc1/source/rust/e40-canvas)`
       
         previously selected package `glyphon v0.3.0`
           ... which satisfies dependency `glyphon = "^0.3"` of package `iced_wgpu v0.11.0`
           ... which satisfies dependency `iced_wgpu = "^0.11"` of package `iced_renderer v0.1.0`
           ... which satisfies dependency `iced_renderer = "^0.1"` of package `iced v0.10.0`
           ... which satisfies dependency `iced = "^0.10.0"` of package `e40-canvas v0.1.0 (/workspace/builds/worker-4-tc1/source/rust/e40-canvas)`
       
       failed to select a version for `wgpu` which could resolve this conflict