[INFO] fetching crate webio 0.9.5-alpha...
[INFO] testing webio-0.9.5-alpha against master#562dee4820c458d823175268e41601d4c060588a for pr-154210
[INFO] extracting crate webio 0.9.5-alpha into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate webio 0.9.5-alpha
[INFO] finished tweaking crates.io crate webio 0.9.5-alpha
[INFO] tweaked toml for crates.io crate webio 0.9.5-alpha written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate webio 0.9.5-alpha on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate webio 0.9.5-alpha 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: failed to save last-use data
[INFO] [stderr] This may prevent cargo from accurately tracking what is being used in its global cache. This information is used for automatically removing unused data in the cache.
[INFO] [stderr] 
[INFO] [stderr] database or disk is full
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Error code 13: database or disk is full
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: failed to auto-clean cache data
[INFO] [stderr] 
[INFO] [stderr] database or disk is full
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Error code 13: database or disk is full
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d821417e1d7ddeddbce2cdeeac23f2653a99efb2152a1823c15285b29cbce22
[INFO] running `Command { std: "docker" "start" "-a" "2d821417e1d7ddeddbce2cdeeac23f2653a99efb2152a1823c15285b29cbce22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d821417e1d7ddeddbce2cdeeac23f2653a99efb2152a1823c15285b29cbce22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d821417e1d7ddeddbce2cdeeac23f2653a99efb2152a1823c15285b29cbce22", kill_on_drop: false }`
[INFO] [stdout] 2d821417e1d7ddeddbce2cdeeac23f2653a99efb2152a1823c15285b29cbce22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce5c99f86de19b643c522e31887d7b24db66dc8ad76e7fe31603a3cbf156b4c6
[INFO] running `Command { std: "docker" "start" "-a" "ce5c99f86de19b643c522e31887d7b24db66dc8ad76e7fe31603a3cbf156b4c6", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/webio-662bfdf3809823a1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "ce5c99f86de19b643c522e31887d7b24db66dc8ad76e7fe31603a3cbf156b4c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce5c99f86de19b643c522e31887d7b24db66dc8ad76e7fe31603a3cbf156b4c6", kill_on_drop: false }`
[INFO] [stdout] ce5c99f86de19b643c522e31887d7b24db66dc8ad76e7fe31603a3cbf156b4c6