[INFO] fetching crate neo-sync 0.0.8...
[INFO] building neo-sync-0.0.8 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate neo-sync 0.0.8 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate neo-sync 0.0.8
[INFO] finished tweaking crates.io crate neo-sync 0.0.8
[INFO] tweaked toml for crates.io crate neo-sync 0.0.8 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate neo-sync 0.0.8 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate neo-sync 0.0.8 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded form_urlencoded v1.1.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.84
[INFO] [stderr]   Downloaded serde_derive v1.0.160
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.34
[INFO] [stderr]   Downloaded ipnet v2.7.2
[INFO] [stderr]   Downloaded once_cell v1.17.1
[INFO] [stderr]   Downloaded js-sys v0.3.61
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.84
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded serde v1.0.160
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.2
[INFO] [stderr]   Downloaded url v2.3.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.84
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.84
[INFO] [stderr]   Downloaded base64 v0.21.0
[INFO] [stderr]   Downloaded quote v1.0.26
[INFO] [stderr]   Downloaded tracing-core v0.1.30
[INFO] [stderr]   Downloaded tokio-util v0.7.7
[INFO] [stderr]   Downloaded bumpalo v3.12.1
[INFO] [stderr]   Downloaded mio v0.8.6
[INFO] [stderr]   Downloaded rustls-webpki v0.101.5
[INFO] [stderr]   Downloaded hyper v0.14.26
[INFO] [stderr]   Downloaded h2 v0.3.18
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.84
[INFO] [stderr]   Downloaded syn v2.0.15
[INFO] [stderr]   Downloaded libc v0.2.142
[INFO] [stderr]   Downloaded web-sys v0.3.61
[INFO] [stderr]   Downloaded tokio v1.27.0
[INFO] [stderr]   Downloaded encoding_rs v0.8.32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa37fc981273318349c2f117bff4a8ec3601c843dd67078a764480b9a3175fa3
[INFO] running `Command { std: "docker" "start" "-a" "aa37fc981273318349c2f117bff4a8ec3601c843dd67078a764480b9a3175fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa37fc981273318349c2f117bff4a8ec3601c843dd67078a764480b9a3175fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa37fc981273318349c2f117bff4a8ec3601c843dd67078a764480b9a3175fa3", kill_on_drop: false }`
[INFO] [stdout] aa37fc981273318349c2f117bff4a8ec3601c843dd67078a764480b9a3175fa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc98fc461b98207b7b32e13fa14b709a3ebfa2894db973ae2ad146f74807a2e5
[INFO] running `Command { std: "docker" "start" "-a" "bc98fc461b98207b7b32e13fa14b709a3ebfa2894db973ae2ad146f74807a2e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling rustls v0.21.7
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling base64 v0.21.0
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling webpki-roots v0.25.2
[INFO] [stderr]    Compiling rustls-pemfile v1.0.2
[INFO] [stderr]    Compiling ipnet v2.7.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bc98fc461b98207b7b32e13fa14b709a3ebfa2894db973ae2ad146f74807a2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc98fc461b98207b7b32e13fa14b709a3ebfa2894db973ae2ad146f74807a2e5", kill_on_drop: false }`
[INFO] [stdout] bc98fc461b98207b7b32e13fa14b709a3ebfa2894db973ae2ad146f74807a2e5