[INFO] fetching crate libzeropool-zkbob 1.3.0...
[INFO] testing libzeropool-zkbob-1.3.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate libzeropool-zkbob 1.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate libzeropool-zkbob 1.3.0
[INFO] finished tweaking crates.io crate libzeropool-zkbob 1.3.0
[INFO] tweaked toml for crates.io crate libzeropool-zkbob 1.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate libzeropool-zkbob 1.3.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libzeropool-zkbob 1.3.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-case-macros v2.2.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.51
[INFO] [stderr]   Downloaded impl-trait-for-tuples v0.1.3
[INFO] [stderr]   Downloaded chacha20 v0.7.3
[INFO] [stderr]   Downloaded linked-list v0.0.3
[INFO] [stderr]   Downloaded keccak v0.1.3
[INFO] [stderr]   Downloaded concat-idents v1.1.4
[INFO] [stderr]   Downloaded ff-uint_derive v0.2.4
[INFO] [stderr]   Downloaded fawkes-crypto-bellman_ce v0.3.5
[INFO] [stderr]   Downloaded critical-section v1.1.1
[INFO] [stderr]   Downloaded spin v0.9.5
[INFO] [stderr]   Downloaded semver v1.0.16
[INFO] [stderr]   Downloaded heapless v0.7.16
[INFO] [stderr]   Downloaded clap-v3 v3.0.0-beta.1
[INFO] [stderr]   Downloaded chacha20poly1305 v0.8.2
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.4
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.1
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.14
[INFO] [stderr]   Downloaded clap_derive-v3 v3.0.0-beta.1
[INFO] [stderr]   Downloaded crossbeam v0.7.3
[INFO] [stderr]   Downloaded brotli-decompressor v2.3.4
[INFO] [stderr]   Downloaded ref-cast v1.0.14
[INFO] [stderr]   Downloaded ff-uint v0.2.4
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.12
[INFO] [stderr]   Downloaded arrayvec v0.4.12
[INFO] [stderr]   Downloaded blake2-rfc_bellman_edition v0.0.1
[INFO] [stderr]   Downloaded ff_derive_ce v0.5.1
[INFO] [stderr]   Downloaded ff_ce v0.7.1
[INFO] [stderr]   Downloaded seedbox v0.2.0
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.11
[INFO] [stderr]   Downloaded poly1305 v0.7.2
[INFO] [stderr]   Downloaded syn-mid v0.5.3
[INFO] [stderr]   Downloaded proc-macro-error v0.4.12
[INFO] [stderr]   Downloaded fawkes-crypto_derive v4.3.0
[INFO] [stderr]   Downloaded serde_json v1.0.93
[INFO] [stderr]   Downloaded fawkes-crypto-zkbob v4.6.0
[INFO] [stderr]   Downloaded fawkes-crypto-zkbob-keccak256 v0.1.1
[INFO] [stderr]   Downloaded hex v0.3.2
[INFO] [stderr]   Downloaded test-case v2.2.2
[INFO] [stderr]   Downloaded fawkes-crypto-pairing_ce v0.18.1
[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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd3ae130ad4d797cb2a4e3f7e5b7194abc04f29d4754ca0aa4080bc8fe8a662d
[INFO] running `Command { std: "docker" "start" "-a" "dd3ae130ad4d797cb2a4e3f7e5b7194abc04f29d4754ca0aa4080bc8fe8a662d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd3ae130ad4d797cb2a4e3f7e5b7194abc04f29d4754ca0aa4080bc8fe8a662d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd3ae130ad4d797cb2a4e3f7e5b7194abc04f29d4754ca0aa4080bc8fe8a662d", kill_on_drop: false }`
[INFO] [stdout] dd3ae130ad4d797cb2a4e3f7e5b7194abc04f29d4754ca0aa4080bc8fe8a662d
[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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cb0a232a4f75e40c043d5bb59f9264c7200c5399db15dad5e67cbf93ff0cf23
[INFO] running `Command { std: "docker" "start" "-a" "1cb0a232a4f75e40c043d5bb59f9264c7200c5399db15dad5e67cbf93ff0cf23", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling ref-cast v1.0.14
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling keccak v0.1.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 rand_core v0.6.4
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[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" "1cb0a232a4f75e40c043d5bb59f9264c7200c5399db15dad5e67cbf93ff0cf23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb0a232a4f75e40c043d5bb59f9264c7200c5399db15dad5e67cbf93ff0cf23", kill_on_drop: false }`
[INFO] [stdout] 1cb0a232a4f75e40c043d5bb59f9264c7200c5399db15dad5e67cbf93ff0cf23