[INFO] fetching crate dusk-consensus 0.1.0...
[INFO] checking dusk-consensus-0.1.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate dusk-consensus 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate dusk-consensus 0.1.0 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate dusk-consensus 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate dusk-consensus 0.1.0
[INFO] tweaked toml for crates.io crate dusk-consensus 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate dusk-consensus 0.1.0 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sharded-slab v0.1.4
[INFO] [stderr]   Downloaded serde v1.0.148
[INFO] [stderr]   Downloaded humantime-serde v1.1.1
[INFO] [stderr]   Downloaded libmath v0.2.1
[INFO] [stderr]   Downloaded rustc_tools_util v0.2.1
[INFO] [stderr]   Downloaded tracing-attributes v0.1.23
[INFO] [stderr]   Downloaded konst_proc_macros v0.2.11
[INFO] [stderr]   Downloaded futures-core v0.3.25
[INFO] [stderr]   Downloaded arrayref v0.3.6
[INFO] [stderr]   Downloaded concurrent-queue v2.0.0
[INFO] [stderr]   Downloaded konst_macro_rules v0.2.19
[INFO] [stderr]   Downloaded async-channel v1.8.0
[INFO] [stderr]   Downloaded constant_time_eq v0.2.4
[INFO] [stderr]   Downloaded kadcast v0.4.1
[INFO] [stderr]   Downloaded arrayvec v0.7.2
[INFO] [stderr]   Downloaded blake2 v0.10.5
[INFO] [stderr]   Downloaded blake3 v1.3.3
[INFO] [stderr]   Downloaded dusk-bls12_381 v0.9.0
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.42.0
[INFO] [stderr]   Downloaded sha3 v0.10.6
[INFO] [stderr]   Downloaded windows_i686_gnu v0.42.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.42.0
[INFO] [stderr]   Downloaded tokio v1.22.0
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded cxx v1.0.82
[INFO] [stderr]   Downloaded regex v1.7.0
[INFO] [stderr]   Downloaded syn v1.0.104
[INFO] [stderr]   Downloaded bytes v1.3.0
[INFO] [stderr]   Downloaded mio v0.8.5
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.82
[INFO] [stderr]   Downloaded blake2 v0.9.2
[INFO] [stderr]   Downloaded konst v0.2.19
[INFO] [stderr]   Downloaded raptorq v1.7.0
[INFO] [stderr]   Downloaded keccak v0.1.3
[INFO] [stderr]   Downloaded parking_lot_core v0.9.5
[INFO] [stderr]   Downloaded cxx-build v1.0.82
[INFO] [stderr]   Downloaded bytes v0.6.0
[INFO] [stderr]   Downloaded dusk-bytes v0.1.6
[INFO] [stderr]   Downloaded signal-hook-registry v1.4.0
[INFO] [stderr]   Downloaded serde_derive v1.0.148
[INFO] [stderr]   Downloaded num_cpus v1.14.0
[INFO] [stderr]   Downloaded tokio-macros v1.8.0
[INFO] [stderr]   Downloaded dusk-bls12_381-sign v0.3.0-rc.0
[INFO] [stderr]   Downloaded derive-hex v0.1.2
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbbb384b292af96c6fc116d29cf53e83b5ad35ffd407825038425e8c3fa885e9
[INFO] running `Command { std: "docker" "start" "-a" "bbbb384b292af96c6fc116d29cf53e83b5ad35ffd407825038425e8c3fa885e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbbb384b292af96c6fc116d29cf53e83b5ad35ffd407825038425e8c3fa885e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbbb384b292af96c6fc116d29cf53e83b5ad35ffd407825038425e8c3fa885e9", kill_on_drop: false }`
[INFO] [stdout] bbbb384b292af96c6fc116d29cf53e83b5ad35ffd407825038425e8c3fa885e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30bf8883ac71db5011a1bae33141b4929dea56f3006032413fe4e671caeac0d3
[INFO] running `Command { std: "docker" "start" "-a" "30bf8883ac71db5011a1bae33141b4929dea56f3006032413fe4e671caeac0d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling syn v1.0.104
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling serde_derive v1.0.148
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.148
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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 num-traits v0.2.15
[INFO] [stderr]     Checking tracing-core v0.1.30
[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]    Compiling num-integer v0.1.45
[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" "30bf8883ac71db5011a1bae33141b4929dea56f3006032413fe4e671caeac0d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30bf8883ac71db5011a1bae33141b4929dea56f3006032413fe4e671caeac0d3", kill_on_drop: false }`
[INFO] [stdout] 30bf8883ac71db5011a1bae33141b4929dea56f3006032413fe4e671caeac0d3
