[INFO] cloning repository https://github.com/kyleaforrester/mandelart
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kyleaforrester/mandelart" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyleaforrester%2Fmandelart", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyleaforrester%2Fmandelart'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 615906fa2e74a406a9bfca1af164c355c3adcc2a
[INFO] checking kyleaforrester/mandelart against try#c4ca24658d934444a28db36abebef17a8651701a for pr-144156
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyleaforrester%2Fmandelart" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kyleaforrester/mandelart
[INFO] finished tweaking git repo https://github.com/kyleaforrester/mandelart
[INFO] tweaked toml for git repo https://github.com/kyleaforrester/mandelart written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kyleaforrester/mandelart on toolchain c4ca24658d934444a28db36abebef17a8651701a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kyleaforrester/mandelart 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" "+c4ca24658d934444a28db36abebef17a8651701a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 654fb2c4cebc778c5da75716c5de600bb842b06bd49ba2c5bb3d269af0a1dafe
[INFO] running `Command { std: "docker" "start" "-a" "654fb2c4cebc778c5da75716c5de600bb842b06bd49ba2c5bb3d269af0a1dafe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "654fb2c4cebc778c5da75716c5de600bb842b06bd49ba2c5bb3d269af0a1dafe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "654fb2c4cebc778c5da75716c5de600bb842b06bd49ba2c5bb3d269af0a1dafe", kill_on_drop: false }`
[INFO] [stdout] 654fb2c4cebc778c5da75716c5de600bb842b06bd49ba2c5bb3d269af0a1dafe
[INFO] checking kyleaforrester/mandelart against try#c4ca24658d934444a28db36abebef17a8651701a for pr-144156
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyleaforrester%2Fmandelart" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kyleaforrester/mandelart
[INFO] finished tweaking git repo https://github.com/kyleaforrester/mandelart
[INFO] tweaked toml for git repo https://github.com/kyleaforrester/mandelart written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kyleaforrester/mandelart on toolchain c4ca24658d934444a28db36abebef17a8651701a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kyleaforrester/mandelart 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" "+c4ca24658d934444a28db36abebef17a8651701a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 699ab58ed71e74fe3b7c627b4ed6803ae71cf24435a5bf39682cd2622df41a7a
[INFO] running `Command { std: "docker" "start" "-a" "699ab58ed71e74fe3b7c627b4ed6803ae71cf24435a5bf39682cd2622df41a7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "699ab58ed71e74fe3b7c627b4ed6803ae71cf24435a5bf39682cd2622df41a7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "699ab58ed71e74fe3b7c627b4ed6803ae71cf24435a5bf39682cd2622df41a7a", kill_on_drop: false }`
[INFO] [stdout] 699ab58ed71e74fe3b7c627b4ed6803ae71cf24435a5bf39682cd2622df41a7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8797b57170148c8644fc21e03215a9e931ec8547fe698046b0bfeceb8af46ca5
[INFO] running `Command { std: "docker" "start" "-a" "8797b57170148c8644fc21e03215a9e931ec8547fe698046b0bfeceb8af46ca5", kill_on_drop: false }`
[INFO] [stderr]     Checking mandelart v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "8797b57170148c8644fc21e03215a9e931ec8547fe698046b0bfeceb8af46ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8797b57170148c8644fc21e03215a9e931ec8547fe698046b0bfeceb8af46ca5", kill_on_drop: false }`
[INFO] [stdout] 8797b57170148c8644fc21e03215a9e931ec8547fe698046b0bfeceb8af46ca5