[INFO] cloning repository https://github.com/miiiiiYT/rustyroulette
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miiiiiYT/rustyroulette" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmiiiiiYT%2Frustyroulette", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmiiiiiYT%2Frustyroulette'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 881425e6c779960ba8bcbac3d7278fcca55fcb9c
[INFO] checking miiiiiYT/rustyroulette against master#667247db71ea18c4130dd018d060e7f09d589490 for pr-140824
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmiiiiiYT%2Frustyroulette" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/miiiiiYT/rustyroulette on toolchain 667247db71ea18c4130dd018d060e7f09d589490
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+667247db71ea18c4130dd018d060e7f09d589490" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/miiiiiYT/rustyroulette
[INFO] finished tweaking git repo https://github.com/miiiiiYT/rustyroulette
[INFO] tweaked toml for git repo https://github.com/miiiiiYT/rustyroulette written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/miiiiiYT/rustyroulette 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" "+667247db71ea18c4130dd018d060e7f09d589490" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+667247db71ea18c4130dd018d060e7f09d589490" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47fc451221ebe22207837decd227f88069e60f1b49d56207e0b1e3df32fad452
[INFO] running `Command { std: "docker" "start" "-a" "47fc451221ebe22207837decd227f88069e60f1b49d56207e0b1e3df32fad452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47fc451221ebe22207837decd227f88069e60f1b49d56207e0b1e3df32fad452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47fc451221ebe22207837decd227f88069e60f1b49d56207e0b1e3df32fad452", kill_on_drop: false }`
[INFO] [stdout] 47fc451221ebe22207837decd227f88069e60f1b49d56207e0b1e3df32fad452
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+667247db71ea18c4130dd018d060e7f09d589490" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb149b0bd8e2976232904b53a2a792126f6578310bb448e2d49d3d91075edd0
[INFO] running `Command { std: "docker" "start" "-a" "adb149b0bd8e2976232904b53a2a792126f6578310bb448e2d49d3d91075edd0", kill_on_drop: false }`
[INFO] [stderr]     Checking rustyroulette v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: calling this function with a null pointer is undefined behavior, even if the result of the function is unused
[INFO] [stdout]  --> src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |             let _ = std::ptr::read_volatile(ptr); // read from it
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for more information, visit <https://doc.rust-lang.org/std/ptr/index.html> and <https://doc.rust-lang.org/reference/behavior-considered-undefined.html>
[INFO] [stdout] note: null pointer originates from here
[INFO] [stdout]  --> src/lib.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 |             let ptr: *const u8 = std::ptr::null(); // init null pointer
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[deny(invalid_null_arguments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustyroulette` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: calling this function with a null pointer is undefined behavior, even if the result of the function is unused
[INFO] [stdout]  --> src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |             let _ = std::ptr::read_volatile(ptr); // read from it
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for more information, visit <https://doc.rust-lang.org/std/ptr/index.html> and <https://doc.rust-lang.org/reference/behavior-considered-undefined.html>
[INFO] [stdout] note: null pointer originates from here
[INFO] [stdout]  --> src/lib.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 |             let ptr: *const u8 = std::ptr::null(); // init null pointer
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[deny(invalid_null_arguments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustyroulette` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "adb149b0bd8e2976232904b53a2a792126f6578310bb448e2d49d3d91075edd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb149b0bd8e2976232904b53a2a792126f6578310bb448e2d49d3d91075edd0", kill_on_drop: false }`
[INFO] [stdout] adb149b0bd8e2976232904b53a2a792126f6578310bb448e2d49d3d91075edd0