[INFO] cloning repository https://github.com/aetherknight/fractal-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aetherknight/fractal-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faetherknight%2Ffractal-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faetherknight%2Ffractal-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4fdc8bacfc631a10a6e1a12fe9942b7dccc79a1
[INFO] checking aetherknight/fractal-rs against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faetherknight%2Ffractal-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aetherknight/fractal-rs on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aetherknight/fractal-rs
[INFO] finished tweaking git repo https://github.com/aetherknight/fractal-rs
[INFO] tweaked toml for git repo https://github.com/aetherknight/fractal-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/aetherknight/fractal-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 239616cbbced762c53f0605813d30715bf1fcab38f67e465ceb5b65af39db169
[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" "239616cbbced762c53f0605813d30715bf1fcab38f67e465ceb5b65af39db169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "239616cbbced762c53f0605813d30715bf1fcab38f67e465ceb5b65af39db169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "239616cbbced762c53f0605813d30715bf1fcab38f67e465ceb5b65af39db169", kill_on_drop: false }`
[INFO] [stdout] 239616cbbced762c53f0605813d30715bf1fcab38f67e465ceb5b65af39db169
[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=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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee00fa8a0a8cc19ac979a326db0f854c7cc3d5ee75dac7be0e7818becbe1baeb
[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" "ee00fa8a0a8cc19ac979a326db0f854c7cc3d5ee75dac7be0e7818becbe1baeb", kill_on_drop: false }`
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[INFO] [stderr]     Checking futures v0.3.7
[INFO] [stderr]     Checking pistoncore-input v1.0.0
[INFO] [stderr]     Checking pistoncore-window v0.47.0
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[INFO] [stderr]     Checking piston v0.53.0
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[INFO] [stderr]     Checking fractal-piston v0.0.1 (/opt/rustwide/workdir/fractal-piston)
[INFO] [stdout] warning: field is never read: `threads`
[INFO] [stdout]   --> fractal-piston/src/pistonrendering/escapetime.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     threads: Option<ThreadedWorkMultiplexerHandles>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `threads`
[INFO] [stdout]   --> fractal-piston/src/pistonrendering/escapetime.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     threads: Option<ThreadedWorkMultiplexerHandles>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking web-sys v0.3.45
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.18
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[INFO] [stderr]     Checking fractal-wasm v0.0.1 (/opt/rustwide/workdir/fractal-wasm)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 07s
[INFO] running `Command { std: "docker" "inspect" "ee00fa8a0a8cc19ac979a326db0f854c7cc3d5ee75dac7be0e7818becbe1baeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee00fa8a0a8cc19ac979a326db0f854c7cc3d5ee75dac7be0e7818becbe1baeb", kill_on_drop: false }`
[INFO] [stdout] ee00fa8a0a8cc19ac979a326db0f854c7cc3d5ee75dac7be0e7818becbe1baeb