[INFO] cloning repository https://github.com/mereblocks/hello-world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mereblocks/hello-world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmereblocks%2Fhello-world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmereblocks%2Fhello-world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d9501d7270ad81942819a163d42ca4a14a19b4f
[INFO] checking mereblocks/hello-world against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmereblocks%2Fhello-world" "/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/mereblocks/hello-world 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 git repo https://github.com/mereblocks/hello-world
[INFO] finished tweaking git repo https://github.com/mereblocks/hello-world
[INFO] tweaked toml for git repo https://github.com/mereblocks/hello-world written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mereblocks/hello-world 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-expr v0.11.0
[INFO] [stderr]   Downloaded zmq v0.10.0
[INFO] [stderr]   Downloaded io-lifetimes v1.0.2
[INFO] [stderr]   Downloaded system-deps v6.0.3
[INFO] [stderr]   Downloaded jwalk v0.6.0
[INFO] [stderr]   Downloaded dircpy v0.3.13
[INFO] [stderr]   Downloaded zmq-sys v0.12.0
[INFO] [stderr]   Downloaded zeromq-src v0.2.2+4.3.4
[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] 959be8fa1eb808d2999dde7baf37ed838757e508aeda45c6e6ce727d75aaa398
[INFO] running `Command { std: "docker" "start" "-a" "959be8fa1eb808d2999dde7baf37ed838757e508aeda45c6e6ce727d75aaa398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "959be8fa1eb808d2999dde7baf37ed838757e508aeda45c6e6ce727d75aaa398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "959be8fa1eb808d2999dde7baf37ed838757e508aeda45c6e6ce727d75aaa398", kill_on_drop: false }`
[INFO] [stdout] 959be8fa1eb808d2999dde7baf37ed838757e508aeda45c6e6ce727d75aaa398
[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] bf471bf86a18b520f9c580742c0e965657fe81e4f19411e76fbadc5d8dd3d9c7
[INFO] running `Command { std: "docker" "start" "-a" "bf471bf86a18b520f9c580742c0e965657fe81e4f19411e76fbadc5d8dd3d9c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling io-lifetimes v1.0.2
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling rustix v0.36.3
[INFO] [stderr]     Checking linux-raw-sys v0.1.3
[INFO] [stderr]    Compiling cfg-expr v0.11.0
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]    Compiling zmq v0.10.0
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.14.0
[INFO] [stderr]    Compiling jobserver v0.1.25
[INFO] [stderr]    Compiling crossbeam v0.8.2
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling rayon v1.6.0
[INFO] [stderr]     Checking is-terminal v0.4.0
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling jwalk v0.6.0
[INFO] [stderr]    Compiling dircpy v0.3.13
[INFO] [stderr]    Compiling zeromq-src v0.2.2+4.3.4
[INFO] [stderr]    Compiling system-deps v6.0.3
[INFO] [stderr]    Compiling zmq-sys v0.12.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 42.09s
[INFO] running `Command { std: "docker" "inspect" "bf471bf86a18b520f9c580742c0e965657fe81e4f19411e76fbadc5d8dd3d9c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf471bf86a18b520f9c580742c0e965657fe81e4f19411e76fbadc5d8dd3d9c7", kill_on_drop: false }`
[INFO] [stdout] bf471bf86a18b520f9c580742c0e965657fe81e4f19411e76fbadc5d8dd3d9c7