[INFO] fetching crate backspace-common 0.1.0...
[INFO] documenting backspace-common-0.1.0 against 1.91.0 for beta-1.92-rustdoc-1
[INFO] extracting crate backspace-common 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate backspace-common 0.1.0
[INFO] finished tweaking crates.io crate backspace-common 0.1.0
[INFO] tweaked toml for crates.io crate backspace-common 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate backspace-common 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate backspace-common 0.1.0 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polylane v0.12.0
[INFO] [stderr]   Downloaded multitype v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19e5bc4e295b46947b2ba7ec2e48e566b8acb394360019e57bb8fc23c0a5df2f
[INFO] running `Command { std: "docker" "start" "-a" "19e5bc4e295b46947b2ba7ec2e48e566b8acb394360019e57bb8fc23c0a5df2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19e5bc4e295b46947b2ba7ec2e48e566b8acb394360019e57bb8fc23c0a5df2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19e5bc4e295b46947b2ba7ec2e48e566b8acb394360019e57bb8fc23c0a5df2f", kill_on_drop: false }`
[INFO] [stdout] 19e5bc4e295b46947b2ba7ec2e48e566b8acb394360019e57bb8fc23c0a5df2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb63aa1c9a73bd2333e39c69e909a9cb8e6b4b7be08a06d6f9ddb8c47c38778c
[INFO] running `Command { std: "docker" "start" "-a" "fb63aa1c9a73bd2333e39c69e909a9cb8e6b4b7be08a06d6f9ddb8c47c38778c", kill_on_drop: false }`
[INFO] [stderr] error: rustc 1.91.0 is not supported by the following package:
[INFO] [stderr]   backspace-common@0.1.0 requires rustc 1.92
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "fb63aa1c9a73bd2333e39c69e909a9cb8e6b4b7be08a06d6f9ddb8c47c38778c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb63aa1c9a73bd2333e39c69e909a9cb8e6b4b7be08a06d6f9ddb8c47c38778c", kill_on_drop: false }`
[INFO] [stdout] fb63aa1c9a73bd2333e39c69e909a9cb8e6b4b7be08a06d6f9ddb8c47c38778c