[INFO] cloning repository https://github.com/memothelemo/ribbon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/memothelemo/ribbon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmemothelemo%2Fribbon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmemothelemo%2Fribbon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1f6ef1b44640d401693b3fbb98afd37c8b26abf
[INFO] checking memothelemo/ribbon against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmemothelemo%2Fribbon" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/memothelemo/ribbon 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/memothelemo/ribbon
[INFO] finished tweaking git repo https://github.com/memothelemo/ribbon
[INFO] tweaked toml for git repo https://github.com/memothelemo/ribbon written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/memothelemo/ribbon 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 luau0-src v0.4.0+luau548
[INFO] [stderr]   Downloaded mlua v0.8.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6cce062b48d423463281436d5999ee1b75b9b2e00ddde21f4dd07458f85f431c
[INFO] running `Command { std: "docker" "start" "-a" "6cce062b48d423463281436d5999ee1b75b9b2e00ddde21f4dd07458f85f431c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cce062b48d423463281436d5999ee1b75b9b2e00ddde21f4dd07458f85f431c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cce062b48d423463281436d5999ee1b75b9b2e00ddde21f4dd07458f85f431c", kill_on_drop: false }`
[INFO] [stdout] 6cce062b48d423463281436d5999ee1b75b9b2e00ddde21f4dd07458f85f431c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 142e41f44688e1b4ba61bcb77fb9f821cb00ecc4e99acd1789195e80c9252f23
[INFO] running `Command { std: "docker" "start" "-a" "142e41f44688e1b4ba61bcb77fb9f821cb00ecc4e99acd1789195e80c9252f23", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling luau0-src v0.4.0+luau548
[INFO] [stderr]    Compiling mlua v0.8.5
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking uuid v1.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ribbon-engine v0.1.0 (/opt/rustwide/workdir/engine)
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> engine/src/instance/mod.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         self.ptr == other.ptr
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 56 |         std::ptr::addr_eq(self.ptr.as_ptr(), other.ptr.as_ptr())
[INFO] [stdout]    |         ++++++++++++++++++        ~~~~~~~~~~          ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> engine/src/instance/mod.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         self.ptr == other.ptr
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 56 |         std::ptr::addr_eq(self.ptr.as_ptr(), other.ptr.as_ptr())
[INFO] [stdout]    |         ++++++++++++++++++        ~~~~~~~~~~          ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> engine/src/instance/lua.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Ok(this.ptr == other.ptr)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Ok(std::ptr::addr_eq(this.ptr.as_ptr(), other.ptr.as_ptr()))
[INFO] [stdout]    |                ++++++++++++++++++        ~~~~~~~~~~          ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> engine/src/instance/lua.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Ok(this.ptr == other.ptr)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Ok(std::ptr::addr_eq(this.ptr.as_ptr(), other.ptr.as_ptr()))
[INFO] [stdout]    |                ++++++++++++++++++        ~~~~~~~~~~          ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ribbon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.12s
[INFO] running `Command { std: "docker" "inspect" "142e41f44688e1b4ba61bcb77fb9f821cb00ecc4e99acd1789195e80c9252f23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "142e41f44688e1b4ba61bcb77fb9f821cb00ecc4e99acd1789195e80c9252f23", kill_on_drop: false }`
[INFO] [stdout] 142e41f44688e1b4ba61bcb77fb9f821cb00ecc4e99acd1789195e80c9252f23