[INFO] cloning repository https://github.com/utkarshkukreti/draco
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/utkarshkukreti/draco" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futkarshkukreti%2Fdraco", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futkarshkukreti%2Fdraco'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88da005ba29dedf005f3cfbc1e2a092960eadad1
[INFO] building utkarshkukreti/draco against try#c38f3f86763ea281f7c555c13ef11baad4a4fff4 for pr-111698
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futkarshkukreti%2Fdraco" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/utkarshkukreti/draco on toolchain c38f3f86763ea281f7c555c13ef11baad4a4fff4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c38f3f86763ea281f7c555c13ef11baad4a4fff4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/utkarshkukreti/draco
[INFO] finished tweaking git repo https://github.com/utkarshkukreti/draco
[INFO] tweaked toml for git repo https://github.com/utkarshkukreti/draco written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+c38f3f86763ea281f7c555c13ef11baad4a4fff4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c38f3f86763ea281f7c555c13ef11baad4a4fff4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+c38f3f86763ea281f7c555c13ef11baad4a4fff4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1c941da4add5b5d6e6c9a8198ee51cc35007d6346f13ac334454dfec1b8d619
[INFO] running `Command { std: "docker" "start" "-a" "b1c941da4add5b5d6e6c9a8198ee51cc35007d6346f13ac334454dfec1b8d619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1c941da4add5b5d6e6c9a8198ee51cc35007d6346f13ac334454dfec1b8d619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c941da4add5b5d6e6c9a8198ee51cc35007d6346f13ac334454dfec1b8d619", kill_on_drop: false }`
[INFO] [stdout] b1c941da4add5b5d6e6c9a8198ee51cc35007d6346f13ac334454dfec1b8d619
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+c38f3f86763ea281f7c555c13ef11baad4a4fff4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6049811ea00d3caa970be6624af75aa1983b68e011ca4b5037a4a6fbdc120fc2
[INFO] running `Command { std: "docker" "start" "-a" "6049811ea00d3caa970be6624af75aa1983b68e011ca4b5037a4a6fbdc120fc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.86
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling once_cell v1.17.2
[INFO] [stderr]    Compiling bumpalo v3.13.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.86
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr] LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] thread 'rustc' panicked at 'assertion failed: pos.get() <= self.position()', compiler/rustc_metadata/src/rmeta/encoder.rs:428:9
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] running `Command { std: "docker" "inspect" "6049811ea00d3caa970be6624af75aa1983b68e011ca4b5037a4a6fbdc120fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6049811ea00d3caa970be6624af75aa1983b68e011ca4b5037a4a6fbdc120fc2", kill_on_drop: false }`
[INFO] [stdout] 6049811ea00d3caa970be6624af75aa1983b68e011ca4b5037a4a6fbdc120fc2