[INFO] fetching crate string-builder 0.2.0...
[INFO] checking string-builder-0.2.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate string-builder 0.2.0 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate string-builder 0.2.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string-builder 0.2.0
[INFO] finished tweaking crates.io crate string-builder 0.2.0
[INFO] tweaked toml for crates.io crate string-builder 0.2.0 written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f89c2e6deeabf1bc14750d21a790c2139ff912c54e2a1e457b0e26835ec989f7
[INFO] running `Command { std: "docker" "start" "-a" "f89c2e6deeabf1bc14750d21a790c2139ff912c54e2a1e457b0e26835ec989f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f89c2e6deeabf1bc14750d21a790c2139ff912c54e2a1e457b0e26835ec989f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89c2e6deeabf1bc14750d21a790c2139ff912c54e2a1e457b0e26835ec989f7", kill_on_drop: false }`
[INFO] [stdout] f89c2e6deeabf1bc14750d21a790c2139ff912c54e2a1e457b0e26835ec989f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4f2aa8c60292c00997683bdaf122cd35abe2d7fc8069879de70aff8dcfa8eb2
[INFO] running `Command { std: "docker" "start" "-a" "b4f2aa8c60292c00997683bdaf122cd35abe2d7fc8069879de70aff8dcfa8eb2", kill_on_drop: false }`
[INFO] [stderr]     Checking string-builder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "b4f2aa8c60292c00997683bdaf122cd35abe2d7fc8069879de70aff8dcfa8eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4f2aa8c60292c00997683bdaf122cd35abe2d7fc8069879de70aff8dcfa8eb2", kill_on_drop: false }`
[INFO] [stdout] b4f2aa8c60292c00997683bdaf122cd35abe2d7fc8069879de70aff8dcfa8eb2