[INFO] fetching crate keystring_generator 0.1.2...
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] crate keystring_generator 0.1.2 is already in cache
[INFO] checking keystring_generator-0.1.2 against try#ff47dd48ed0d02534055e0033cf766ce528f8ebc for pr-99447
[INFO] extracting crate keystring_generator 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate keystring_generator 0.1.2 on toolchain ff47dd48ed0d02534055e0033cf766ce528f8ebc
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate keystring_generator 0.1.2
[INFO] finished tweaking crates.io crate keystring_generator 0.1.2
[INFO] tweaked toml for crates.io crate keystring_generator 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate keystring_generator 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcb6bd9bf035824c2b01deed314761f4f0935f1507392dc9546198dc721fd744
[INFO] running `Command { std: "docker" "start" "-a" "fcb6bd9bf035824c2b01deed314761f4f0935f1507392dc9546198dc721fd744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcb6bd9bf035824c2b01deed314761f4f0935f1507392dc9546198dc721fd744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcb6bd9bf035824c2b01deed314761f4f0935f1507392dc9546198dc721fd744", kill_on_drop: false }`
[INFO] [stdout] fcb6bd9bf035824c2b01deed314761f4f0935f1507392dc9546198dc721fd744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c61523029cb42544dff2da9fadede06f71da7f6ccea23353086535585be64bd0
[INFO] running `Command { std: "docker" "start" "-a" "c61523029cb42544dff2da9fadede06f71da7f6ccea23353086535585be64bd0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "c61523029cb42544dff2da9fadede06f71da7f6ccea23353086535585be64bd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c61523029cb42544dff2da9fadede06f71da7f6ccea23353086535585be64bd0", kill_on_drop: false }`
[INFO] [stdout] c61523029cb42544dff2da9fadede06f71da7f6ccea23353086535585be64bd0