[INFO] cloning repository https://github.com/flippette/mandelbrot-cuda
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flippette/mandelbrot-cuda" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflippette%2Fmandelbrot-cuda", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflippette%2Fmandelbrot-cuda'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8675d07e1c48dcadec1b892d044b67d6ca6bba2
[INFO] checking flippette/mandelbrot-cuda against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflippette%2Fmandelbrot-cuda" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flippette/mandelbrot-cuda on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/flippette/mandelbrot-cuda
[INFO] finished tweaking git repo https://github.com/flippette/mandelbrot-cuda
[INFO] tweaked toml for git repo https://github.com/flippette/mandelbrot-cuda written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/flippette/mandelbrot-cuda 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustacuda_core v0.1.2
[INFO] [stderr]   Downloaded miniz_oxide v0.5.4
[INFO] [stderr]   Downloaded cuda-config v0.1.0
[INFO] [stderr]   Downloaded rustacuda_derive v0.1.2
[INFO] [stderr]   Downloaded rustacuda v0.1.3
[INFO] [stderr]   Downloaded cuda-driver-sys v0.3.0
[INFO] [stderr]   Downloaded bytemuck v1.12.1
[INFO] [stderr]   Downloaded png v0.17.5
[INFO] [stderr]   Downloaded deflate v1.0.0
[INFO] [stderr]   Downloaded image v0.24.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5207b8e5c74ae648c198247232dfdcceeba93a02aaf19d85299bd1eaf0be9bcf
[INFO] running `Command { std: "docker" "start" "-a" "5207b8e5c74ae648c198247232dfdcceeba93a02aaf19d85299bd1eaf0be9bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5207b8e5c74ae648c198247232dfdcceeba93a02aaf19d85299bd1eaf0be9bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5207b8e5c74ae648c198247232dfdcceeba93a02aaf19d85299bd1eaf0be9bcf", kill_on_drop: false }`
[INFO] [stdout] 5207b8e5c74ae648c198247232dfdcceeba93a02aaf19d85299bd1eaf0be9bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6751aa7eb53e27b7a7ee2722a8bcca7f1c5a349db9faeceb3e0a5ab74148355
[INFO] running `Command { std: "docker" "start" "-a" "e6751aa7eb53e27b7a7ee2722a8bcca7f1c5a349db9faeceb3e0a5ab74148355", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking rustacuda_core v0.1.2
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]    Compiling cuda-config v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling cuda-driver-sys v0.3.0
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking image v0.24.3
[INFO] [stderr]    Compiling rustacuda_derive v0.1.2
[INFO] [stderr]     Checking rustacuda v0.1.3
[INFO] [stderr]     Checking mandelbrot_cuda v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `DeviceBuffer` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rustacuda::{memory::DeviceBuffer, prelude::*};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^  ---------- the item `DeviceBuffer` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DeviceBuffer` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rustacuda::{memory::DeviceBuffer, prelude::*};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^  ---------- the item `DeviceBuffer` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "e6751aa7eb53e27b7a7ee2722a8bcca7f1c5a349db9faeceb3e0a5ab74148355", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6751aa7eb53e27b7a7ee2722a8bcca7f1c5a349db9faeceb3e0a5ab74148355", kill_on_drop: false }`
[INFO] [stdout] e6751aa7eb53e27b7a7ee2722a8bcca7f1c5a349db9faeceb3e0a5ab74148355