[INFO] fetching crate postcard-derive 0.2.1...
[INFO] checking postcard-derive-0.2.1 against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] extracting crate postcard-derive 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate postcard-derive 0.2.1 on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate postcard-derive 0.2.1
[INFO] finished tweaking crates.io crate postcard-derive 0.2.1
[INFO] tweaked toml for crates.io crate postcard-derive 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a9a3681c3d52b2cf553797bd6f010f63f9055f5b34b2ae6d77a5e16273e628b
[INFO] running `Command { std: "docker" "start" "-a" "1a9a3681c3d52b2cf553797bd6f010f63f9055f5b34b2ae6d77a5e16273e628b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a9a3681c3d52b2cf553797bd6f010f63f9055f5b34b2ae6d77a5e16273e628b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a9a3681c3d52b2cf553797bd6f010f63f9055f5b34b2ae6d77a5e16273e628b", kill_on_drop: false }`
[INFO] [stdout] 1a9a3681c3d52b2cf553797bd6f010f63f9055f5b34b2ae6d77a5e16273e628b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8e6b5c43338ad16eceeb45270ecfc98d235acc7eaaa9f9f16e54470bc1dbe7d
[INFO] running `Command { std: "docker" "start" "-a" "f8e6b5c43338ad16eceeb45270ecfc98d235acc7eaaa9f9f16e54470bc1dbe7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.103
[INFO] [stdout] error: error writing dependencies to `/opt/rustwide/target/debug/deps/syn-3ee551ae02e60ff3.d`: 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" "f8e6b5c43338ad16eceeb45270ecfc98d235acc7eaaa9f9f16e54470bc1dbe7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8e6b5c43338ad16eceeb45270ecfc98d235acc7eaaa9f9f16e54470bc1dbe7d", kill_on_drop: false }`
[INFO] [stdout] f8e6b5c43338ad16eceeb45270ecfc98d235acc7eaaa9f9f16e54470bc1dbe7d