[INFO] fetching crate websocket_toolkit 0.2.0...
[INFO] checking websocket_toolkit-0.2.0 against try#5cafabc9f16561d7796554d5d241c3068e2bd97f for pr-135852
[INFO] extracting crate websocket_toolkit 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate websocket_toolkit 0.2.0 on toolchain 5cafabc9f16561d7796554d5d241c3068e2bd97f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate websocket_toolkit 0.2.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate websocket_toolkit 0.2.0
[INFO] tweaked toml for crates.io crate websocket_toolkit 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate websocket_toolkit 0.2.0 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" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "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: Insertion failed because database is full
[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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/809ac104765c0b58b181be206ff3c5de7ba7cdf964eee957f00e8af2b0ba311b-init/diff: no space left on device
[INFO] checking websocket_toolkit-0.2.0 against try#5cafabc9f16561d7796554d5d241c3068e2bd97f for pr-135852
[INFO] extracting crate websocket_toolkit 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate websocket_toolkit 0.2.0 on toolchain 5cafabc9f16561d7796554d5d241c3068e2bd97f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate websocket_toolkit 0.2.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate websocket_toolkit 0.2.0
[INFO] tweaked toml for crates.io crate websocket_toolkit 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate websocket_toolkit 0.2.0 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" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "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-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6ef070a4d3f46e9a6c002b110eceb50102c34bb0204bde4f49a258c946360e1
[INFO] running `Command { std: "docker" "start" "-a" "a6ef070a4d3f46e9a6c002b110eceb50102c34bb0204bde4f49a258c946360e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6ef070a4d3f46e9a6c002b110eceb50102c34bb0204bde4f49a258c946360e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ef070a4d3f46e9a6c002b110eceb50102c34bb0204bde4f49a258c946360e1", kill_on_drop: false }`
[INFO] [stdout] a6ef070a4d3f46e9a6c002b110eceb50102c34bb0204bde4f49a258c946360e1
[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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dbcce91d68cf9611354e341fa1a9fc680379abea96822bc50180bb79f227143
[INFO] running `Command { std: "docker" "start" "-a" "2dbcce91d68cf9611354e341fa1a9fc680379abea96822bc50180bb79f227143", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/build/proc-macro2-f3e744a655644ee8/out`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "2dbcce91d68cf9611354e341fa1a9fc680379abea96822bc50180bb79f227143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dbcce91d68cf9611354e341fa1a9fc680379abea96822bc50180bb79f227143", kill_on_drop: false }`
[INFO] [stdout] 2dbcce91d68cf9611354e341fa1a9fc680379abea96822bc50180bb79f227143