[INFO] fetching crate microtype-macro 0.2.6...
[INFO] checking microtype-macro-0.2.6 against master#068609ce766e55d2e7371cd2a86143a6d7e8e2e4 for pr-138952
[INFO] extracting crate microtype-macro 0.2.6 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate microtype-macro 0.2.6 on toolchain 068609ce766e55d2e7371cd2a86143a6d7e8e2e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate microtype-macro 0.2.6
[INFO] finished tweaking crates.io crate microtype-macro 0.2.6
[INFO] tweaked toml for crates.io crate microtype-macro 0.2.6 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "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 34 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.100)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6a23719515df12751d64813399d24401992d0f4aec7e5e3c124808384b903b5
[INFO] running `Command { std: "docker" "start" "-a" "b6a23719515df12751d64813399d24401992d0f4aec7e5e3c124808384b903b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6a23719515df12751d64813399d24401992d0f4aec7e5e3c124808384b903b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6a23719515df12751d64813399d24401992d0f4aec7e5e3c124808384b903b5", kill_on_drop: false }`
[INFO] [stdout] b6a23719515df12751d64813399d24401992d0f4aec7e5e3c124808384b903b5


command failed: exit status: 1

Error response from daemon: mkdir /var/lib/docker/overlay2/83fa9b9b718369de055ff3c52bd3b964658c3e0e9630a5a2df0b88c154aa66df/merged: no space left on device