[INFO] fetching crate peace_fmt 0.0.15...
[INFO] building peace_fmt-0.0.15 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] extracting crate peace_fmt 0.0.15 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate peace_fmt 0.0.15 on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate peace_fmt 0.0.15
[INFO] finished tweaking crates.io crate peace_fmt 0.0.15
[INFO] tweaked toml for crates.io crate peace_fmt 0.0.15 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate peace_fmt 0.0.15 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37ce6a0e6c6b3d6a98f4c954c3b0866ee26b51e7a9fa0ce18de42c3e06472911
[INFO] running `Command { std: "docker" "start" "-a" "37ce6a0e6c6b3d6a98f4c954c3b0866ee26b51e7a9fa0ce18de42c3e06472911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37ce6a0e6c6b3d6a98f4c954c3b0866ee26b51e7a9fa0ce18de42c3e06472911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ce6a0e6c6b3d6a98f4c954c3b0866ee26b51e7a9fa0ce18de42c3e06472911", kill_on_drop: false }`
[INFO] [stdout] 37ce6a0e6c6b3d6a98f4c954c3b0866ee26b51e7a9fa0ce18de42c3e06472911
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec6db6abe38900148bde15a455800f9cb82859ac6569c8e9b82aceeb41a8bd87
[INFO] running `Command { std: "docker" "start" "-a" "ec6db6abe38900148bde15a455800f9cb82859ac6569c8e9b82aceeb41a8bd87", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stdout] error: failed to write /tmp/rustcUtMh4y/lib.rmeta: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "ec6db6abe38900148bde15a455800f9cb82859ac6569c8e9b82aceeb41a8bd87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec6db6abe38900148bde15a455800f9cb82859ac6569c8e9b82aceeb41a8bd87", kill_on_drop: false }`
[INFO] [stdout] ec6db6abe38900148bde15a455800f9cb82859ac6569c8e9b82aceeb41a8bd87