[INFO] fetching crate mdpreview 0.1.0...
[INFO] checking mdpreview-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate mdpreview 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate mdpreview 0.1.0 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 mdpreview 0.1.0
[INFO] finished tweaking crates.io crate mdpreview 0.1.0
[INFO] tweaked toml for crates.io crate mdpreview 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--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]      Locking 8 packages
[INFO] [stderr]       Adding bitflags v0.8.2 (latest: v2.5.0)
[INFO] [stderr]       Adding open v1.7.1 (latest: v5.1.2)
[INFO] [stderr]       Adding pulldown-cmark v0.0.11 (latest: v0.10.2)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded open v1.7.1
[INFO] [stderr]   Downloaded bitflags v0.8.2
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9917dff6be262f3ce24d123f4a9951dff1807f938fa5c1b0b0c8ce91f893eef2
[INFO] running `Command { std: "docker" "start" "-a" "9917dff6be262f3ce24d123f4a9951dff1807f938fa5c1b0b0c8ce91f893eef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9917dff6be262f3ce24d123f4a9951dff1807f938fa5c1b0b0c8ce91f893eef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9917dff6be262f3ce24d123f4a9951dff1807f938fa5c1b0b0c8ce91f893eef2", kill_on_drop: false }`
[INFO] [stdout] 9917dff6be262f3ce24d123f4a9951dff1807f938fa5c1b0b0c8ce91f893eef2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d72b9c217f9c3ea64bd8068652182551a261b636426e6b2de3aa83806be6c25d
[INFO] running `Command { std: "docker" "start" "-a" "d72b9c217f9c3ea64bd8068652182551a261b636426e6b2de3aa83806be6c25d", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.0.11
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking open v1.7.1
[INFO] [stderr]     Checking mdpreview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "d72b9c217f9c3ea64bd8068652182551a261b636426e6b2de3aa83806be6c25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72b9c217f9c3ea64bd8068652182551a261b636426e6b2de3aa83806be6c25d", kill_on_drop: false }`
[INFO] [stdout] d72b9c217f9c3ea64bd8068652182551a261b636426e6b2de3aa83806be6c25d
[INFO] checking mdpreview-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate mdpreview 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate mdpreview 0.1.0 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 mdpreview 0.1.0
[INFO] finished tweaking crates.io crate mdpreview 0.1.0
[INFO] tweaked toml for crates.io crate mdpreview 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages
[INFO] [stderr]       Adding bitflags v0.8.2 (latest: v2.5.0)
[INFO] [stderr]       Adding open v1.7.1 (latest: v5.1.2)
[INFO] [stderr]       Adding pulldown-cmark v0.0.11 (latest: v0.10.2)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f42031593ef9228963db4c1856f2f660dab59d47e5cf8ff9fc4e9845d4e1e1c3
[INFO] running `Command { std: "docker" "start" "-a" "f42031593ef9228963db4c1856f2f660dab59d47e5cf8ff9fc4e9845d4e1e1c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f42031593ef9228963db4c1856f2f660dab59d47e5cf8ff9fc4e9845d4e1e1c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f42031593ef9228963db4c1856f2f660dab59d47e5cf8ff9fc4e9845d4e1e1c3", kill_on_drop: false }`
[INFO] [stdout] f42031593ef9228963db4c1856f2f660dab59d47e5cf8ff9fc4e9845d4e1e1c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 09827f8a3bde779ed8bf4488b782e2be156dcf9cbd8030724534cc1702f35155
[INFO] running `Command { std: "docker" "start" "-a" "09827f8a3bde779ed8bf4488b782e2be156dcf9cbd8030724534cc1702f35155", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.0.11
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking open v1.7.1
[INFO] [stderr]     Checking mdpreview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "09827f8a3bde779ed8bf4488b782e2be156dcf9cbd8030724534cc1702f35155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09827f8a3bde779ed8bf4488b782e2be156dcf9cbd8030724534cc1702f35155", kill_on_drop: false }`
[INFO] [stdout] 09827f8a3bde779ed8bf4488b782e2be156dcf9cbd8030724534cc1702f35155