[INFO] fetching crate yaml-ast 0.0.1...
[INFO] checking yaml-ast-0.0.1 against try#ae258e1fcbee4a062f5f3d869f06004d7cea088e for pr-135272
[INFO] extracting crate yaml-ast 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate yaml-ast 0.0.1 on toolchain ae258e1fcbee4a062f5f3d869f06004d7cea088e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae258e1fcbee4a062f5f3d869f06004d7cea088e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yaml-ast 0.0.1
[INFO] finished tweaking crates.io crate yaml-ast 0.0.1
[INFO] tweaked toml for crates.io crate yaml-ast 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae258e1fcbee4a062f5f3d869f06004d7cea088e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding snafu v0.7.5 (available: v0.8.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae258e1fcbee4a062f5f3d869f06004d7cea088e" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+ae258e1fcbee4a062f5f3d869f06004d7cea088e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13b5a566cced9d13fbc98a85ddd73cba075b4c114e929ea9f61d7c7b8304a6d1
[INFO] running `Command { std: "docker" "start" "-a" "13b5a566cced9d13fbc98a85ddd73cba075b4c114e929ea9f61d7c7b8304a6d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13b5a566cced9d13fbc98a85ddd73cba075b4c114e929ea9f61d7c7b8304a6d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13b5a566cced9d13fbc98a85ddd73cba075b4c114e929ea9f61d7c7b8304a6d1", kill_on_drop: false }`
[INFO] [stdout] 13b5a566cced9d13fbc98a85ddd73cba075b4c114e929ea9f61d7c7b8304a6d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+ae258e1fcbee4a062f5f3d869f06004d7cea088e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe43d2bef9b99e11ed7e4eb22955f32fa396871d4bd51c5225b05b1c566cdcf5
[INFO] running `Command { std: "docker" "start" "-a" "fe43d2bef9b99e11ed7e4eb22955f32fa396871d4bd51c5225b05b1c566cdcf5", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/59827834e86f96b080f9c3d69e32a1513c2d9fe803b73d7858771f963f196798/merged: no space left on device
[INFO] running `Command { std: "docker" "inspect" "fe43d2bef9b99e11ed7e4eb22955f32fa396871d4bd51c5225b05b1c566cdcf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe43d2bef9b99e11ed7e4eb22955f32fa396871d4bd51c5225b05b1c566cdcf5", kill_on_drop: false }`
[INFO] [stdout] fe43d2bef9b99e11ed7e4eb22955f32fa396871d4bd51c5225b05b1c566cdcf5