[INFO] fetching crate flacenc 0.5.0...
[INFO] testing flacenc-0.5.0 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate flacenc 0.5.0 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate flacenc 0.5.0
[INFO] finished tweaking crates.io crate flacenc 0.5.0
[INFO] tweaked toml for crates.io crate flacenc 0.5.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flacenc 0.5.0 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flacenc 0.5.0 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cb3e5cccff890b9ffd21573b8c9bf1df55599a7a4b3d99c42087791c40333e7
[INFO] running `Command { std: "docker" "start" "-a" "1cb3e5cccff890b9ffd21573b8c9bf1df55599a7a4b3d99c42087791c40333e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cb3e5cccff890b9ffd21573b8c9bf1df55599a7a4b3d99c42087791c40333e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb3e5cccff890b9ffd21573b8c9bf1df55599a7a4b3d99c42087791c40333e7", kill_on_drop: false }`
[INFO] [stdout] 1cb3e5cccff890b9ffd21573b8c9bf1df55599a7a4b3d99c42087791c40333e7
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46e47857d7ed90aebfa660304f28468a77299c51fb29591e9fd65c25880ebe8b
[INFO] running `Command { std: "docker" "start" "-a" "46e47857d7ed90aebfa660304f28468a77299c51fb29591e9fd65c25880ebe8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling built v0.7.1
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling seq-macro v0.3.6
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling crc v3.2.1
[INFO] [stderr]    Compiling flacenc v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/tmp/rustcyxjueR"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "46e47857d7ed90aebfa660304f28468a77299c51fb29591e9fd65c25880ebe8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46e47857d7ed90aebfa660304f28468a77299c51fb29591e9fd65c25880ebe8b", kill_on_drop: false }`
[INFO] [stdout] 46e47857d7ed90aebfa660304f28468a77299c51fb29591e9fd65c25880ebe8b