[INFO] crate sc-consensus-pow 0.8.0-rc2 is already in cache
[INFO] checking sc-consensus-pow-0.8.0-rc2 against master#450abe80f193ccefbfcd48214d70520f2d507f0e for pr-73084
[INFO] extracting crate sc-consensus-pow 0.8.0-rc2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate sc-consensus-pow 0.8.0-rc2 on toolchain 450abe80f193ccefbfcd48214d70520f2d507f0e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sc-consensus-pow 0.8.0-rc2
[INFO] finished tweaking crates.io crate sc-consensus-pow 0.8.0-rc2
[INFO] tweaked toml for crates.io crate sc-consensus-pow 0.8.0-rc2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "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] 8ae57e8e705a328beaf25ff13b5a1d521c97acd0774b8eb1e23e2667593bd8d6
[INFO] running `"docker" "start" "-a" "8ae57e8e705a328beaf25ff13b5a1d521c97acd0774b8eb1e23e2667593bd8d6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking multistream-select v0.8.1
[INFO] [stderr]     Checking sp-core v2.0.0-rc3
[INFO] [stderr]     Checking libp2p-core v0.19.1
[INFO] [stderr]     Checking sp-trie v2.0.0-rc3
[INFO] [stderr]     Checking sp-inherents v2.0.0-rc3
[INFO] [stderr]     Checking sp-allocator v2.0.0-rc3
[INFO] [stderr]     Checking sc-executor-common v0.8.0-rc3
[INFO] [stderr]     Checking sp-state-machine v0.8.0-rc3
[INFO] [stderr]     Checking hyper v0.13.6
[INFO] [stderr]     Checking sc-executor-wasmi v0.8.0-rc3
[INFO] [stderr]     Checking libp2p-dns v0.19.0
[INFO] [stderr]     Checking libp2p-wasm-ext v0.19.0
[INFO] [stderr]     Checking libp2p-swarm v0.19.0
[INFO] [stderr]     Checking libp2p-tcp v0.19.1
[INFO] [stderr]     Checking libp2p-websocket v0.19.0
[INFO] [stderr]     Checking libp2p v0.19.1
[INFO] [stderr]     Checking sc-telemetry v2.0.0-rc3
[INFO] [stderr]     Checking sp-io v2.0.0-rc3
[INFO] [stderr]     Checking substrate-prometheus-endpoint v0.8.0-rc3
[INFO] [stderr]     Checking sp-application-crypto v2.0.0-rc3
[INFO] [stderr]     Checking sp-runtime v2.0.0-rc3
[INFO] [stderr]     Checking sp-version v2.0.0-rc3
[INFO] [stderr]     Checking sp-keyring v2.0.0-rc3
[INFO] [stderr]     Checking sp-api v2.0.0-rc3
[INFO] [stderr]     Checking sp-consensus v0.8.0-rc3
[INFO] [stderr]     Checking sp-block-builder v2.0.0-rc3
[INFO] [stderr]     Checking sc-executor v0.8.0-rc3
[INFO] [stderr]     Checking sp-consensus-pow v0.8.0-rc3
[INFO] [stderr]     Checking sp-timestamp v2.0.0-rc3
[INFO] [stderr]     Checking sp-blockchain v2.0.0-rc3
[INFO] [stderr]     Checking sp-transaction-pool v2.0.0-rc3
[INFO] [stderr]     Checking sc-client-api v2.0.0-rc3
[INFO] [stderr]     Checking sc-consensus-pow v0.8.0-rc2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:613:7
[INFO] [stderr]     |
[INFO] [stderr] 613 |         let mut proposer = futures::executor::block_on(env.init(&best_header))
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:613:7
[INFO] [stderr]     |
[INFO] [stderr] 613 |         let mut proposer = futures::executor::block_on(env.init(&best_header))
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.49s
[INFO] running `"docker" "inspect" "8ae57e8e705a328beaf25ff13b5a1d521c97acd0774b8eb1e23e2667593bd8d6"`
[INFO] running `"docker" "rm" "-f" "8ae57e8e705a328beaf25ff13b5a1d521c97acd0774b8eb1e23e2667593bd8d6"`
[INFO] [stdout] 8ae57e8e705a328beaf25ff13b5a1d521c97acd0774b8eb1e23e2667593bd8d6