[INFO] cloning repository https://github.com/wattlebirdaz/optimistic_read
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wattlebirdaz/optimistic_read" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Foptimistic_read", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Foptimistic_read'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3ca4f51895c4ab1ed3200b3fd50eeca86582ea3
[INFO] checking wattlebirdaz/optimistic_read against try#409ef99a7d4dc96ae91f65d4b48413ed174514d6 for pr-137633
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Foptimistic_read" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wattlebirdaz/optimistic_read on toolchain 409ef99a7d4dc96ae91f65d4b48413ed174514d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wattlebirdaz/optimistic_read
[INFO] finished tweaking git repo https://github.com/wattlebirdaz/optimistic_read
[INFO] tweaked toml for git repo https://github.com/wattlebirdaz/optimistic_read written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wattlebirdaz/optimistic_read 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" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b6aceb6b98f776504a556fa3c6a4c9debf7d0aa364e0a8cf4df0cf079eead77
[INFO] running `Command { std: "docker" "start" "-a" "8b6aceb6b98f776504a556fa3c6a4c9debf7d0aa364e0a8cf4df0cf079eead77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b6aceb6b98f776504a556fa3c6a4c9debf7d0aa364e0a8cf4df0cf079eead77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b6aceb6b98f776504a556fa3c6a4c9debf7d0aa364e0a8cf4df0cf079eead77", kill_on_drop: false }`
[INFO] [stdout] 8b6aceb6b98f776504a556fa3c6a4c9debf7d0aa364e0a8cf4df0cf079eead77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44da2b898566b2d1c88c7b6300cd2e6a4767029244c25b67c5b1071d8f1bfcae
[INFO] running `Command { std: "docker" "start" "-a" "44da2b898566b2d1c88c7b6300cd2e6a4767029244c25b67c5b1071d8f1bfcae", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/d1946d03d0db048a489727f135bad341589a2c866029fad210777e1b77ec32cd/merged: no space left on device
[INFO] running `Command { std: "docker" "inspect" "44da2b898566b2d1c88c7b6300cd2e6a4767029244c25b67c5b1071d8f1bfcae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44da2b898566b2d1c88c7b6300cd2e6a4767029244c25b67c5b1071d8f1bfcae", kill_on_drop: false }`
[INFO] [stdout] 44da2b898566b2d1c88c7b6300cd2e6a4767029244c25b67c5b1071d8f1bfcae