[INFO] cloning repository https://github.com/dbr/imgui-software-renderer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dbr/imgui-software-renderer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbr%2Fimgui-software-renderer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbr%2Fimgui-software-renderer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7a9b9acfeb7a93b8991ee557d96c8ef031b4237
[INFO] checking dbr/imgui-software-renderer against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbr%2Fimgui-software-renderer" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dbr/imgui-software-renderer on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dbr/imgui-software-renderer
[INFO] finished tweaking git repo https://github.com/dbr/imgui-software-renderer
[INFO] tweaked toml for git repo https://github.com/dbr/imgui-software-renderer written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/dbr/imgui-software-renderer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a6757bb7481fe726bb7d80c95b2751adb0ec909f5350185f06f6b94f084be4d
[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" "4a6757bb7481fe726bb7d80c95b2751adb0ec909f5350185f06f6b94f084be4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a6757bb7481fe726bb7d80c95b2751adb0ec909f5350185f06f6b94f084be4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a6757bb7481fe726bb7d80c95b2751adb0ec909f5350185f06f6b94f084be4d", kill_on_drop: false }`
[INFO] [stdout] 4a6757bb7481fe726bb7d80c95b2751adb0ec909f5350185f06f6b94f084be4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6ba08a11fa87137bc02bd7f9d107da34de92abbd00722ba9d30a66877c50da91
[INFO] running `Command { std: "docker" "start" "-a" "6ba08a11fa87137bc02bd7f9d107da34de92abbd00722ba9d30a66877c50da91", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking chlorine v1.0.7
[INFO] [stderr]     Checking bytemuck v1.5.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]    Compiling imgui-sys v0.7.0
[INFO] [stderr]     Checking tiny-skia v0.5.1
[INFO] [stderr]     Checking imgui v0.7.0
[INFO] [stderr]     Checking imgui-software-renderer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `col_p1`
[INFO] [stdout]   --> src/drawing.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     col_p1: [u8; 4],
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_p1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col_p2`
[INFO] [stdout]   --> src/drawing.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     col_p2: [u8; 4],
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_p2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]    --> src/drawing.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |     let mut counter = 0;
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col_p1`
[INFO] [stdout]   --> src/drawing.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     col_p1: [u8; 4],
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_p1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col_p2`
[INFO] [stdout]   --> src/drawing.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     col_p2: [u8; 4],
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_p2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]    --> src/drawing.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |     let mut counter = 0;
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `imgui_software_renderer`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imgui-software-renderer`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6ba08a11fa87137bc02bd7f9d107da34de92abbd00722ba9d30a66877c50da91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ba08a11fa87137bc02bd7f9d107da34de92abbd00722ba9d30a66877c50da91", kill_on_drop: false }`
[INFO] [stdout] 6ba08a11fa87137bc02bd7f9d107da34de92abbd00722ba9d30a66877c50da91