[INFO] fetching crate json_serializer 1.0.0...
[INFO] building json_serializer-1.0.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate json_serializer 1.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate json_serializer 1.0.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json_serializer 1.0.0
[INFO] finished tweaking crates.io crate json_serializer 1.0.0
[INFO] tweaked toml for crates.io crate json_serializer 1.0.0 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b175832e873e2a03ef4e123b12bc7cbd85aeadb6a64e429b262dd8398a0e910d
[INFO] running `Command { std: "docker" "start" "-a" "b175832e873e2a03ef4e123b12bc7cbd85aeadb6a64e429b262dd8398a0e910d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b175832e873e2a03ef4e123b12bc7cbd85aeadb6a64e429b262dd8398a0e910d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b175832e873e2a03ef4e123b12bc7cbd85aeadb6a64e429b262dd8398a0e910d", kill_on_drop: false }`
[INFO] [stdout] b175832e873e2a03ef4e123b12bc7cbd85aeadb6a64e429b262dd8398a0e910d
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e23e561bee14b4d9510db866aca9391c3094a42818b112f0441885042645b8d8
[INFO] running `Command { std: "docker" "start" "-a" "e23e561bee14b4d9510db866aca9391c3094a42818b112f0441885042645b8d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling json_serializer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaYlCRCY"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json_serializer` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e23e561bee14b4d9510db866aca9391c3094a42818b112f0441885042645b8d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23e561bee14b4d9510db866aca9391c3094a42818b112f0441885042645b8d8", kill_on_drop: false }`
[INFO] [stdout] e23e561bee14b4d9510db866aca9391c3094a42818b112f0441885042645b8d8