[INFO] fetching crate write_mode 0.2.1...
[INFO] checking write_mode-0.2.1 against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557
[INFO] extracting crate write_mode 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate write_mode 0.2.1
[INFO] finished tweaking crates.io crate write_mode 0.2.1
[INFO] tweaked toml for crates.io crate write_mode 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate write_mode 0.2.1 on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate write_mode 0.2.1 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" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a99dbd3af83c96440d6d0344078018cb693d18a30af15973f2107c00a836d5a8
[INFO] running `Command { std: "docker" "start" "-a" "a99dbd3af83c96440d6d0344078018cb693d18a30af15973f2107c00a836d5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a99dbd3af83c96440d6d0344078018cb693d18a30af15973f2107c00a836d5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99dbd3af83c96440d6d0344078018cb693d18a30af15973f2107c00a836d5a8", kill_on_drop: false }`
[INFO] [stdout] a99dbd3af83c96440d6d0344078018cb693d18a30af15973f2107c00a836d5a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c94ac90e09ad41c0c04f4ce63388e9142c25399857ea31ef3a0075fbb810fc94
[INFO] running `Command { std: "docker" "start" "-a" "c94ac90e09ad41c0c04f4ce63388e9142c25399857ea31ef3a0075fbb810fc94", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/887969dd288a170ebf6897121d2dc0d22f824091ee2ecd258aa7f56ddd6786fb/merged: no space left on device
[INFO] running `Command { std: "docker" "inspect" "c94ac90e09ad41c0c04f4ce63388e9142c25399857ea31ef3a0075fbb810fc94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c94ac90e09ad41c0c04f4ce63388e9142c25399857ea31ef3a0075fbb810fc94", kill_on_drop: false }`
[INFO] [stdout] c94ac90e09ad41c0c04f4ce63388e9142c25399857ea31ef3a0075fbb810fc94