[INFO] cloning repository https://github.com/goodcodedev/rui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/goodcodedev/rui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoodcodedev%2Frui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoodcodedev%2Frui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 916627c065505481aa35ddc5eb40796f0788407f
[INFO] testing goodcodedev/rui against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoodcodedev%2Frui" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/goodcodedev/rui on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/goodcodedev/rui
[INFO] finished tweaking git repo https://github.com/goodcodedev/rui
[INFO] tweaked toml for git repo https://github.com/goodcodedev/rui written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/goodcodedev/rui already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bbab2a9397930f0a80e98d769fdf70098eaa5604d9da7d3b0ab433995c6dfa6
[INFO] running `Command { std: "docker" "start" "-a" "8bbab2a9397930f0a80e98d769fdf70098eaa5604d9da7d3b0ab433995c6dfa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bbab2a9397930f0a80e98d769fdf70098eaa5604d9da7d3b0ab433995c6dfa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bbab2a9397930f0a80e98d769fdf70098eaa5604d9da7d3b0ab433995c6dfa6", kill_on_drop: false }`
[INFO] [stdout] 8bbab2a9397930f0a80e98d769fdf70098eaa5604d9da7d3b0ab433995c6dfa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 031350ee9e660dc9dfc38a38860c4a3f3d99a7e3e3e70f832860885bc49f50e9
[INFO] running `Command { std: "docker" "start" "-a" "031350ee9e660dc9dfc38a38860c4a3f3d99a7e3e3e70f832860885bc49f50e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling ui v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     children: Vec<Box<Draw>>
[INFO] [stdout]    |                       ^^^^ help: use `dyn`: `dyn Draw`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `ui`
[INFO] [stdout]    --> src/main.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / use std::mem;
[INFO] [stdout] 2   | | use std::os::raw::c_void;
[INFO] [stdout] 3   | |
[INFO] [stdout] 4   | | trait Draw {
[INFO] [stdout] ...   |
[INFO] [stdout] 160 | |     }
[INFO] [stdout] 161 | | }
[INFO] [stdout]     | |_^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ui`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "031350ee9e660dc9dfc38a38860c4a3f3d99a7e3e3e70f832860885bc49f50e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "031350ee9e660dc9dfc38a38860c4a3f3d99a7e3e3e70f832860885bc49f50e9", kill_on_drop: false }`
[INFO] [stdout] 031350ee9e660dc9dfc38a38860c4a3f3d99a7e3e3e70f832860885bc49f50e9