[INFO] fetching crate wedpr_l_crypto_zkp_range_proof 1.2.0...
[INFO] testing wedpr_l_crypto_zkp_range_proof-1.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate wedpr_l_crypto_zkp_range_proof 1.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate wedpr_l_crypto_zkp_range_proof 1.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wedpr_l_crypto_zkp_range_proof 1.2.0
[INFO] finished tweaking crates.io crate wedpr_l_crypto_zkp_range_proof 1.2.0
[INFO] tweaked toml for crates.io crate wedpr_l_crypto_zkp_range_proof 1.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wedpr_l_crypto_zkp_utils v1.2.0
[INFO] [stderr]   Downloaded wedpr_l_bulletproofs v1.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e68f8fc29165df7ed50573e2bdec6c7c31d8b91a60975b65d213a9db8afebb5c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e68f8fc29165df7ed50573e2bdec6c7c31d8b91a60975b65d213a9db8afebb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e68f8fc29165df7ed50573e2bdec6c7c31d8b91a60975b65d213a9db8afebb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e68f8fc29165df7ed50573e2bdec6c7c31d8b91a60975b65d213a9db8afebb5c", kill_on_drop: false }`
[INFO] [stdout] e68f8fc29165df7ed50573e2bdec6c7c31d8b91a60975b65d213a9db8afebb5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d716431ef957919e98beae62841a9e3aa78587fd07bd592e98f98e3cca35d399
[INFO] running `Command { std: "docker" "start" "-a" "d716431ef957919e98beae62841a9e3aa78587fd07bd592e98f98e3cca35d399", kill_on_drop: false }`
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling wedpr_l_macros v1.0.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling zeroize_derive v1.3.2
[INFO] [stderr]    Compiling wedpr_l_utils v1.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling wedpr_l_crypto_hash_keccak256 v1.1.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling curve25519-dalek v1.2.6
[INFO] [stderr]    Compiling zeroize v1.5.4
[INFO] [stderr]    Compiling merlin v1.3.0
[INFO] [stderr]    Compiling wedpr_l_bulletproofs v1.0.5
[INFO] [stderr]    Compiling wedpr_l_crypto_zkp_utils v1.2.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/wedpr_l_bulletproofs-1.0.5/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wedpr_l_bulletproofs` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d716431ef957919e98beae62841a9e3aa78587fd07bd592e98f98e3cca35d399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d716431ef957919e98beae62841a9e3aa78587fd07bd592e98f98e3cca35d399", kill_on_drop: false }`
[INFO] [stdout] d716431ef957919e98beae62841a9e3aa78587fd07bd592e98f98e3cca35d399