[INFO] fetching crate sp-crypto-ec-utils 0.4.0...
[INFO] checking sp-crypto-ec-utils-0.4.0 against try#4001eed09e19538fd1a219411bb07c1bce2bbf55 for pr-114559-1
[INFO] extracting crate sp-crypto-ec-utils 0.4.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate sp-crypto-ec-utils 0.4.0 on toolchain 4001eed09e19538fd1a219411bb07c1bce2bbf55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4001eed09e19538fd1a219411bb07c1bce2bbf55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sp-crypto-ec-utils 0.4.0
[INFO] finished tweaking crates.io crate sp-crypto-ec-utils 0.4.0
[INFO] tweaked toml for crates.io crate sp-crypto-ec-utils 0.4.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4001eed09e19538fd1a219411bb07c1bce2bbf55" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4001eed09e19538fd1a219411bb07c1bce2bbf55" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+4001eed09e19538fd1a219411bb07c1bce2bbf55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd59ce694faa08692fc2f70402a635e70d2ab40345965dc12a5f66f14f40a791
[INFO] running `Command { std: "docker" "start" "-a" "dd59ce694faa08692fc2f70402a635e70d2ab40345965dc12a5f66f14f40a791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd59ce694faa08692fc2f70402a635e70d2ab40345965dc12a5f66f14f40a791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd59ce694faa08692fc2f70402a635e70d2ab40345965dc12a5f66f14f40a791", kill_on_drop: false }`
[INFO] [stdout] dd59ce694faa08692fc2f70402a635e70d2ab40345965dc12a5f66f14f40a791
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+4001eed09e19538fd1a219411bb07c1bce2bbf55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] add05d5e4940daa57fc1d6d8b1d02cc298248b3afeda450486bd64cd58145e0f
[INFO] running `Command { std: "docker" "start" "-a" "add05d5e4940daa57fc1d6d8b1d02cc298248b3afeda450486bd64cd58145e0f", kill_on_drop: false }`
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[INFO] [stdout] error[E0658]: cannot borrow here, since the borrowed element may contain interior mutability
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ark-ff-0.4.2/src/fields/models/fp/montgomery_backend.rs:719:13
[INFO] [stdout]     |
[INFO] [stdout] 719 |         if !self.const_is_zero() {
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #80384 <https://github.com/rust-lang/rust/issues/80384> for more information
[INFO] [stdout]     = help: add `#![feature(const_refs_to_cell)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: cannot borrow here, since the borrowed element may contain interior mutability
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ark-ff-0.4.2/src/fields/models/fp/montgomery_backend.rs:803:13
[INFO] [stdout]     |
[INFO] [stdout] 803 |         if !self.const_is_valid() {
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #80384 <https://github.com/rust-lang/rust/issues/80384> for more information
[INFO] [stdout]     = help: add `#![feature(const_refs_to_cell)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: cannot borrow here, since the borrowed element may contain interior mutability
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ark-ff-0.4.2/src/fields/models/fp/montgomery_backend.rs:811:22
[INFO] [stdout]     |
[INFO] [stdout] 811 |         if carry || !self.const_is_valid() {
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #80384 <https://github.com/rust-lang/rust/issues/80384> for more information
[INFO] [stdout]     = help: add `#![feature(const_refs_to_cell)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ark-ff` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "add05d5e4940daa57fc1d6d8b1d02cc298248b3afeda450486bd64cd58145e0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add05d5e4940daa57fc1d6d8b1d02cc298248b3afeda450486bd64cd58145e0f", kill_on_drop: false }`
[INFO] [stdout] add05d5e4940daa57fc1d6d8b1d02cc298248b3afeda450486bd64cd58145e0f