[INFO] updating cached repository https://github.com/cennznet/doughnut-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] af5ac12733bac2816baa7bc1a5dd5fa523aa02a9
[INFO] checking cennznet/doughnut-rs against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcennznet%2Fdoughnut-rs" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cennznet/doughnut-rs on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cennznet/doughnut-rs
[INFO] finished tweaking git repo https://github.com/cennznet/doughnut-rs
[INFO] tweaked toml for git repo https://github.com/cennznet/doughnut-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/cennznet/doughnut-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 999f7bff9c41ff47732fde42d665f0206b1b4c0e8d94528577f5ce06f7da8793
[INFO] running `"docker" "start" "-a" "999f7bff9c41ff47732fde42d665f0206b1b4c0e8d94528577f5ce06f7da8793"`
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking bit_reverse v0.1.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]     Checking uint v0.8.2
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]     Checking fixed-hash v0.5.2
[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v1.2.0
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking curve25519-dalek v2.0.0
[INFO] [stderr]     Checking merlin v1.3.0
[INFO] [stderr]     Checking schnorrkel v0.8.5
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]     Checking parity-scale-codec v1.2.0
[INFO] [stderr]     Checking impl-codec v0.4.2
[INFO] [stderr]     Checking primitive-types v0.6.2
[INFO] [stderr]     Checking doughnut_rs v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `"docker" "inspect" "999f7bff9c41ff47732fde42d665f0206b1b4c0e8d94528577f5ce06f7da8793"`
[INFO] running `"docker" "rm" "-f" "999f7bff9c41ff47732fde42d665f0206b1b4c0e8d94528577f5ce06f7da8793"`
[INFO] [stdout] 999f7bff9c41ff47732fde42d665f0206b1b4c0e8d94528577f5ce06f7da8793