[INFO] fetching crate c2rust-ast-printer 0.20.0...
[INFO] checking c2rust-ast-printer-0.20.0 against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352
[INFO] extracting crate c2rust-ast-printer 0.20.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate c2rust-ast-printer 0.20.0 on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate c2rust-ast-printer 0.20.0
[INFO] finished tweaking crates.io crate c2rust-ast-printer 0.20.0
[INFO] tweaked toml for crates.io crate c2rust-ast-printer 0.20.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate c2rust-ast-printer 0.20.0 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" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02e3cbc5bdf8c5b194bccb9aee632f14d48143177e3bc9be751c51c3c8fe2e1b
[INFO] running `Command { std: "docker" "start" "-a" "02e3cbc5bdf8c5b194bccb9aee632f14d48143177e3bc9be751c51c3c8fe2e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02e3cbc5bdf8c5b194bccb9aee632f14d48143177e3bc9be751c51c3c8fe2e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02e3cbc5bdf8c5b194bccb9aee632f14d48143177e3bc9be751c51c3c8fe2e1b", kill_on_drop: false }`
[INFO] [stdout] 02e3cbc5bdf8c5b194bccb9aee632f14d48143177e3bc9be751c51c3c8fe2e1b
[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=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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c557d62d74724054263834ba2548716462b8996a080d0c487686b8a24506b731
[INFO] running `Command { std: "docker" "start" "-a" "c557d62d74724054263834ba2548716462b8996a080d0c487686b8a24506b731", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling prettyplease v0.1.25
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking quote v1.0.36
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetaTN5pQ4/full.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" "c557d62d74724054263834ba2548716462b8996a080d0c487686b8a24506b731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c557d62d74724054263834ba2548716462b8996a080d0c487686b8a24506b731", kill_on_drop: false }`
[INFO] [stdout] c557d62d74724054263834ba2548716462b8996a080d0c487686b8a24506b731