[INFO] fetching crate bitcoincore-rpc 0.8.0-rc1...
[INFO] checking bitcoincore-rpc-0.8.0-rc1 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate bitcoincore-rpc 0.8.0-rc1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate bitcoincore-rpc 0.8.0-rc1 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bitcoincore-rpc 0.8.0-rc1
[INFO] finished tweaking crates.io crate bitcoincore-rpc 0.8.0-rc1
[INFO] tweaked toml for crates.io crate bitcoincore-rpc 0.8.0-rc1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4328809d7df1429e2773ef795ae071d94c614a465b69844f5c406aa08dee3c9e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4328809d7df1429e2773ef795ae071d94c614a465b69844f5c406aa08dee3c9e"`
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]     Checking bech32 v0.7.1
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]     Checking bitcoin_hashes v0.7.1
[INFO] [stderr]     Checking jsonrpc v0.11.0
[INFO] [stderr]    Compiling secp256k1 v0.12.2
[INFO] [stderr]     Checking bitcoin v0.19.2
[INFO] [stderr]     Checking bitcoincore-rpc-json v0.8.0-rc1
[INFO] [stderr]     Checking bitcoincore-rpc v0.8.0-rc1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:94:32
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:94:32
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.25s
[INFO] running `"docker" "inspect" "4328809d7df1429e2773ef795ae071d94c614a465b69844f5c406aa08dee3c9e"`
[INFO] running `"docker" "rm" "-f" "4328809d7df1429e2773ef795ae071d94c614a465b69844f5c406aa08dee3c9e"`
[INFO] [stdout] 4328809d7df1429e2773ef795ae071d94c614a465b69844f5c406aa08dee3c9e