[INFO] fetching crate piet 0.3.1...
[INFO] testing piet-0.3.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate piet 0.3.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate piet 0.3.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piet 0.3.1
[INFO] finished tweaking crates.io crate piet 0.3.1
[INFO] tweaked toml for crates.io crate piet 0.3.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df4168d29a5b050f418cbad86b8a07e63618002147cca93a079f5a35e41ae3e8
[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" "df4168d29a5b050f418cbad86b8a07e63618002147cca93a079f5a35e41ae3e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df4168d29a5b050f418cbad86b8a07e63618002147cca93a079f5a35e41ae3e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df4168d29a5b050f418cbad86b8a07e63618002147cca93a079f5a35e41ae3e8", kill_on_drop: false }`
[INFO] [stdout] df4168d29a5b050f418cbad86b8a07e63618002147cca93a079f5a35e41ae3e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 749d1cba6c8e11b663fe79f82710c211d97c03ee9bbf3be7781852996116cee7
[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" "749d1cba6c8e11b663fe79f82710c211d97c03ee9bbf3be7781852996116cee7", kill_on_drop: false }`
[INFO] [stderr]    Compiling piet v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "749d1cba6c8e11b663fe79f82710c211d97c03ee9bbf3be7781852996116cee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749d1cba6c8e11b663fe79f82710c211d97c03ee9bbf3be7781852996116cee7", kill_on_drop: false }`
[INFO] [stdout] 749d1cba6c8e11b663fe79f82710c211d97c03ee9bbf3be7781852996116cee7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 675f682ed9bc7936fb15d2e19a923619424d6af2f2d3905b2c2e8b7e42e883dc
[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" "675f682ed9bc7936fb15d2e19a923619424d6af2f2d3905b2c2e8b7e42e883dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling piet v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "675f682ed9bc7936fb15d2e19a923619424d6af2f2d3905b2c2e8b7e42e883dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675f682ed9bc7936fb15d2e19a923619424d6af2f2d3905b2c2e8b7e42e883dc", kill_on_drop: false }`
[INFO] [stdout] 675f682ed9bc7936fb15d2e19a923619424d6af2f2d3905b2c2e8b7e42e883dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ac8de44bf2c3aabcf55ea596362bc9960ebbd64d404246e6b689385492655981
[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" "ac8de44bf2c3aabcf55ea596362bc9960ebbd64d404246e6b689385492655981", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/piet-5b7c00179d6bd170
[INFO] [stdout] test color::tests::color_from_hex ... ok
[INFO] [stdout] test util::tests::test_count_until_utf16 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests piet
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/render_context.rs - render_context::PaintBrush (line 237) ... ok
[INFO] [stdout] test src/text.rs - text::Text::font_family (line 30) ... ok
[INFO] [stdout] test src/text.rs - text::Text::load_font (line 73) ... ok
[INFO] [stdout] test src/text.rs - text::TextLayoutBuilder::range_attribute (line 254) ... ok
[INFO] [stdout] test src/text.rs - text::TextLayoutBuilder::font (line 186) ... ok
[INFO] [stdout] test src/color.rs - color::Color::grey8 (line 64) ... ok
[INFO] [stdout] test src/gradient.rs - gradient::LinearGradient::new (line 278) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ac8de44bf2c3aabcf55ea596362bc9960ebbd64d404246e6b689385492655981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac8de44bf2c3aabcf55ea596362bc9960ebbd64d404246e6b689385492655981", kill_on_drop: false }`
[INFO] [stdout] ac8de44bf2c3aabcf55ea596362bc9960ebbd64d404246e6b689385492655981