[INFO] cloning repository https://github.com/nchashch/zcash-drivechain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nchashch/zcash-drivechain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnchashch%2Fzcash-drivechain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnchashch%2Fzcash-drivechain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9750725e2229960e5239b97f13725ec5922a4baf
[INFO] checking nchashch/zcash-drivechain against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnchashch%2Fzcash-drivechain" "/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/nchashch/zcash-drivechain on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/nchashch/zcash-drivechain
[INFO] finished tweaking git repo https://github.com/nchashch/zcash-drivechain
[INFO] tweaked toml for git repo https://github.com/nchashch/zcash-drivechain written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nchashch/zcash-drivechain 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/nchashch/drivechain`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zcash_encoding v0.2.0
[INFO] [stderr]   Downloaded zcash_note_encryption v0.4.0
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.95
[INFO] [stderr]   Downloaded hdwallet v0.4.1
[INFO] [stderr]   Downloaded memuse v0.2.1
[INFO] [stderr]   Downloaded bridgetree v0.3.0
[INFO] [stderr]   Downloaded zcash_history v0.3.0
[INFO] [stderr]   Downloaded halo2_legacy_pdqsort v0.1.0
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.95
[INFO] [stderr]   Downloaded bellman v0.14.0
[INFO] [stderr]   Downloaded cxx v1.0.95
[INFO] [stderr]   Downloaded zcash_primitives v0.12.0
[INFO] [stderr]   Downloaded bip0039 v0.10.1
[INFO] [stderr]   Downloaded halo2_gadgets v0.3.0
[INFO] [stderr]   Downloaded halo2_proofs v0.3.0
[INFO] [stderr]   Downloaded orchard v0.5.0
[INFO] [stderr]   Downloaded f4jumble v0.1.0
[INFO] [stderr]   Downloaded redjubjub v0.7.0
[INFO] [stderr]   Downloaded pasta_curves v0.5.1
[INFO] [stderr]   Downloaded incrementalmerkletree v0.4.0
[INFO] [stderr]   Downloaded jubjub v0.10.0
[INFO] [stderr]   Downloaded reddsa v0.5.0
[INFO] [stderr]   Downloaded equihash v0.2.0
[INFO] [stderr]   Downloaded zcash_proofs v0.12.0
[INFO] [stderr]   Downloaded zcash_address v0.3.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d7d26a903a05d84aa3f024707099c9dabc1d0ed282db09649b9085791ef7b8c
[INFO] running `Command { std: "docker" "start" "-a" "2d7d26a903a05d84aa3f024707099c9dabc1d0ed282db09649b9085791ef7b8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d7d26a903a05d84aa3f024707099c9dabc1d0ed282db09649b9085791ef7b8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d7d26a903a05d84aa3f024707099c9dabc1d0ed282db09649b9085791ef7b8c", kill_on_drop: false }`
[INFO] [stdout] 2d7d26a903a05d84aa3f024707099c9dabc1d0ed282db09649b9085791ef7b8c
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdf1e67af87f4a58af8a1efd02fd0720fa248e7d170a80a458bf90ff7f11fb68
[INFO] running `Command { std: "docker" "start" "-a" "fdf1e67af87f4a58af8a1efd02fd0720fa248e7d170a80a458bf90ff7f11fb68", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.59/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 syn v1.0.109
[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" "fdf1e67af87f4a58af8a1efd02fd0720fa248e7d170a80a458bf90ff7f11fb68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdf1e67af87f4a58af8a1efd02fd0720fa248e7d170a80a458bf90ff7f11fb68", kill_on_drop: false }`
[INFO] [stdout] fdf1e67af87f4a58af8a1efd02fd0720fa248e7d170a80a458bf90ff7f11fb68