[INFO] cloning repository https://github.com/CCS23-anonymous/light-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CCS23-anonymous/light-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCS23-anonymous%2Flight-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCS23-anonymous%2Flight-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf8283c7724be2b25622240494710660ef8b1fc8
[INFO] checking CCS23-anonymous/light-client/cf8283c7724be2b25622240494710660ef8b1fc8 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCS23-anonymous%2Flight-client" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CCS23-anonymous/light-client on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CCS23-anonymous/light-client
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/CCS23-anonymous/light-client
[INFO] tweaked toml for git repo https://github.com/CCS23-anonymous/light-client written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CCS23-anonymous/light-client 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/w3f/fflonk`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ark-ff v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-ff-macros v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-serialize-derive v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-ff-asm v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-bw6-761 v0.4.0-alpha.2
[INFO] [stderr]   Downloaded ark-poly v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-serialize v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-bls12-377 v0.4.0-alpha.2
[INFO] [stderr]   Downloaded ark-ec v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-std v0.4.0-alpha
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25beef91765d48a659b4dc6bd926aa0a8e4d972a69c38bbca49e28fd58fc1513
[INFO] running `Command { std: "docker" "start" "-a" "25beef91765d48a659b4dc6bd926aa0a8e4d972a69c38bbca49e28fd58fc1513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25beef91765d48a659b4dc6bd926aa0a8e4d972a69c38bbca49e28fd58fc1513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25beef91765d48a659b4dc6bd926aa0a8e4d972a69c38bbca49e28fd58fc1513", kill_on_drop: false }`
[INFO] [stdout] 25beef91765d48a659b4dc6bd926aa0a8e4d972a69c38bbca49e28fd58fc1513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc01cee8307c4649cc590ad09290bfc357171156b0bf47acc8d75fd033282889
[INFO] running `Command { std: "docker" "start" "-a" "bc01cee8307c4649cc590ad09290bfc357171156b0bf47acc8d75fd033282889", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling ahash v0.8.2
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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 serde v1.0.152
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bc01cee8307c4649cc590ad09290bfc357171156b0bf47acc8d75fd033282889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc01cee8307c4649cc590ad09290bfc357171156b0bf47acc8d75fd033282889", kill_on_drop: false }`
[INFO] [stdout] bc01cee8307c4649cc590ad09290bfc357171156b0bf47acc8d75fd033282889