[INFO] cloning repository https://github.com/zdlovett/rust-ls
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zdlovett/rust-ls" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzdlovett%2Frust-ls", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzdlovett%2Frust-ls'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08597703f06cfe5ee2b1f8958c0f37b303028e87
[INFO] checking zdlovett/rust-ls against master#bdcb6a99e853732f8ec050ae4986aa3af51d44c5 for 92191_revert
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzdlovett%2Frust-ls" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zdlovett/rust-ls on toolchain bdcb6a99e853732f8ec050ae4986aa3af51d44c5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zdlovett/rust-ls
[INFO] finished tweaking git repo https://github.com/zdlovett/rust-ls
[INFO] tweaked toml for git repo https://github.com/zdlovett/rust-ls written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/zdlovett/rust-ls already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dabe1fa7018403287b484fb6f38345ece30a268659653d3567ccbd9f49a452a1
[INFO] running `Command { std: "docker" "start" "-a" "dabe1fa7018403287b484fb6f38345ece30a268659653d3567ccbd9f49a452a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dabe1fa7018403287b484fb6f38345ece30a268659653d3567ccbd9f49a452a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dabe1fa7018403287b484fb6f38345ece30a268659653d3567ccbd9f49a452a1", kill_on_drop: false }`
[INFO] [stdout] dabe1fa7018403287b484fb6f38345ece30a268659653d3567ccbd9f49a452a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56e2b7b8efba444c54ffb218d48f517147f4efee9a6bbf8d4835827f2c36ecf4
[INFO] running `Command { std: "docker" "start" "-a" "56e2b7b8efba444c54ffb218d48f517147f4efee9a6bbf8d4835827f2c36ecf4", 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" "56e2b7b8efba444c54ffb218d48f517147f4efee9a6bbf8d4835827f2c36ecf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56e2b7b8efba444c54ffb218d48f517147f4efee9a6bbf8d4835827f2c36ecf4", kill_on_drop: false }`
[INFO] [stdout] 56e2b7b8efba444c54ffb218d48f517147f4efee9a6bbf8d4835827f2c36ecf4