[INFO] fetching crate luau-ast-rs 0.1.29...
[INFO] checking luau-ast-rs-0.1.29 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate luau-ast-rs 0.1.29 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate luau-ast-rs 0.1.29 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate luau-ast-rs 0.1.29
[INFO] finished tweaking crates.io crate luau-ast-rs 0.1.29
[INFO] tweaked toml for crates.io crate luau-ast-rs 0.1.29 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate luau-ast-rs 0.1.29 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.22
[INFO] [stderr]   Downloaded serde_derive v1.0.164
[INFO] [stderr]   Downloaded serde v1.0.164
[INFO] [stderr]   Downloaded stacker v0.1.15
[INFO] [stderr]   Downloaded proc-macro2 v1.0.63
[INFO] [stderr]   Downloaded luau-ast-rs-grammar v0.0.2
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d414e025496524228c440f5f6ac76dbfb9e6b85845c42fc70607394493b70e70
[INFO] running `Command { std: "docker" "start" "-a" "d414e025496524228c440f5f6ac76dbfb9e6b85845c42fc70607394493b70e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d414e025496524228c440f5f6ac76dbfb9e6b85845c42fc70607394493b70e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d414e025496524228c440f5f6ac76dbfb9e6b85845c42fc70607394493b70e70", kill_on_drop: false }`
[INFO] [stdout] d414e025496524228c440f5f6ac76dbfb9e6b85845c42fc70607394493b70e70
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 165d30f4125ba7559e7cfe856cef167d69e750bdbb57dac5f0e92b13a5124c03
[INFO] running `Command { std: "docker" "start" "-a" "165d30f4125ba7559e7cfe856cef167d69e750bdbb57dac5f0e92b13a5124c03", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling tree-sitter v0.20.10
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]    Compiling luau-ast-rs-grammar v0.0.2
[INFO] [stderr]    Compiling syn v2.0.22
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking luau-ast-rs v0.1.29 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.74s
[INFO] running `Command { std: "docker" "inspect" "165d30f4125ba7559e7cfe856cef167d69e750bdbb57dac5f0e92b13a5124c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "165d30f4125ba7559e7cfe856cef167d69e750bdbb57dac5f0e92b13a5124c03", kill_on_drop: false }`
[INFO] [stdout] 165d30f4125ba7559e7cfe856cef167d69e750bdbb57dac5f0e92b13a5124c03
[INFO] checking luau-ast-rs-0.1.29 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate luau-ast-rs 0.1.29 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate luau-ast-rs 0.1.29 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate luau-ast-rs 0.1.29
[INFO] finished tweaking crates.io crate luau-ast-rs 0.1.29
[INFO] tweaked toml for crates.io crate luau-ast-rs 0.1.29 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate luau-ast-rs 0.1.29 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40d30ff05b8d6aed106d864a67e4cfb002fa1cecdac504f60f374642c34f1aa5
[INFO] running `Command { std: "docker" "start" "-a" "40d30ff05b8d6aed106d864a67e4cfb002fa1cecdac504f60f374642c34f1aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40d30ff05b8d6aed106d864a67e4cfb002fa1cecdac504f60f374642c34f1aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d30ff05b8d6aed106d864a67e4cfb002fa1cecdac504f60f374642c34f1aa5", kill_on_drop: false }`
[INFO] [stdout] 40d30ff05b8d6aed106d864a67e4cfb002fa1cecdac504f60f374642c34f1aa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6490b4bce25e2988822fb232cafbf33a0ac07371b6934d0ee121c89bc923f18
[INFO] running `Command { std: "docker" "start" "-a" "b6490b4bce25e2988822fb232cafbf33a0ac07371b6934d0ee121c89bc923f18", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]    Compiling syn v2.0.22
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling tree-sitter v0.20.10
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]    Compiling luau-ast-rs-grammar v0.0.2
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking luau-ast-rs v0.1.29 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.33s
[INFO] running `Command { std: "docker" "inspect" "b6490b4bce25e2988822fb232cafbf33a0ac07371b6934d0ee121c89bc923f18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6490b4bce25e2988822fb232cafbf33a0ac07371b6934d0ee121c89bc923f18", kill_on_drop: false }`
[INFO] [stdout] b6490b4bce25e2988822fb232cafbf33a0ac07371b6934d0ee121c89bc923f18