[INFO] cloning repository https://github.com/mizyoukan/mandelbrot-wasm-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mizyoukan/mandelbrot-wasm-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmizyoukan%2Fmandelbrot-wasm-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmizyoukan%2Fmandelbrot-wasm-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e87c4ca73e7b17b1407c604bc5c0cc16871d3c2
[INFO] checking mizyoukan/mandelbrot-wasm-rs against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmizyoukan%2Fmandelbrot-wasm-rs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mizyoukan/mandelbrot-wasm-rs on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mizyoukan/mandelbrot-wasm-rs
[INFO] finished tweaking git repo https://github.com/mizyoukan/mandelbrot-wasm-rs
[INFO] tweaked toml for git repo https://github.com/mizyoukan/mandelbrot-wasm-rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mizyoukan/mandelbrot-wasm-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e03a1f9493d258a153f3606b8cebcc776292461cfc23dc42baae5e48b34a118
[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" "1e03a1f9493d258a153f3606b8cebcc776292461cfc23dc42baae5e48b34a118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e03a1f9493d258a153f3606b8cebcc776292461cfc23dc42baae5e48b34a118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e03a1f9493d258a153f3606b8cebcc776292461cfc23dc42baae5e48b34a118", kill_on_drop: false }`
[INFO] [stdout] 1e03a1f9493d258a153f3606b8cebcc776292461cfc23dc42baae5e48b34a118
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2834d4712d69a16b8f0d4dea6e551913b302da5c4dd212c8aaff2842fd9897b8
[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" "2834d4712d69a16b8f0d4dea6e551913b302da5c4dd212c8aaff2842fd9897b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]    Compiling stdweb v0.4.0 (https://github.com/koute/stdweb?rev=c9cbbcd#c9cbbcd4)
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.42
[INFO] [stderr]    Compiling syn v0.12.13
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]    Compiling stdweb-derive v0.4.0 (https://github.com/koute/stdweb?rev=c9cbbcd#c9cbbcd4)
[INFO] [stderr]     Checking mandelbrot-wasm-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.80s
[INFO] running `Command { std: "docker" "inspect" "2834d4712d69a16b8f0d4dea6e551913b302da5c4dd212c8aaff2842fd9897b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2834d4712d69a16b8f0d4dea6e551913b302da5c4dd212c8aaff2842fd9897b8", kill_on_drop: false }`
[INFO] [stdout] 2834d4712d69a16b8f0d4dea6e551913b302da5c4dd212c8aaff2842fd9897b8