[INFO] fetching crate bitcoincore-rpc-async 3.0.0...
[INFO] checking bitcoincore-rpc-async-3.0.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate bitcoincore-rpc-async 3.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate bitcoincore-rpc-async 3.0.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoincore-rpc-async 3.0.0
[INFO] finished tweaking crates.io crate bitcoincore-rpc-async 3.0.0
[INFO] tweaked toml for crates.io crate bitcoincore-rpc-async 3.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate bitcoincore-rpc-async 3.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bech32 v0.7.2
[INFO] [stderr]   Downloaded base64-compat v1.0.0
[INFO] [stderr]   Downloaded secp256k1 v0.20.0
[INFO] [stderr]   Downloaded tokio v1.0.2
[INFO] [stderr]   Downloaded jsonrpc-async v2.0.1
[INFO] [stderr]   Downloaded bitcoincore-rpc-json-async v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a767653fd6b68e15fedaf2a552671fa4d85d797ca4e63a86a6a0ad4349afd693
[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" "a767653fd6b68e15fedaf2a552671fa4d85d797ca4e63a86a6a0ad4349afd693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a767653fd6b68e15fedaf2a552671fa4d85d797ca4e63a86a6a0ad4349afd693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a767653fd6b68e15fedaf2a552671fa4d85d797ca4e63a86a6a0ad4349afd693", kill_on_drop: false }`
[INFO] [stdout] a767653fd6b68e15fedaf2a552671fa4d85d797ca4e63a86a6a0ad4349afd693
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfa943f9f9eec143e8ab4258175616d4aee254b0ba6a033d51015cf6dc554025
[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" "bfa943f9f9eec143e8ab4258175616d4aee254b0ba6a033d51015cf6dc554025", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking bech32 v0.7.2
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling tokio v1.0.2
[INFO] [stderr]     Checking base64-compat v1.0.0
[INFO] [stderr]     Checking log v0.4.13
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling secp256k1-sys v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking serde v1.0.119
[INFO] [stderr]     Checking secp256k1 v0.20.0
[INFO] [stderr]     Checking bitcoin_hashes v0.9.4
[INFO] [stderr]     Checking jsonrpc-async v2.0.1
[INFO] [stderr]     Checking bitcoin v0.26.0
[INFO] [stderr]     Checking bitcoincore-rpc-json-async v3.0.0
[INFO] [stderr]     Checking bitcoincore-rpc-async v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]   --> src/lib.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | use  log;
[INFO] [stdout]    |      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde`
[INFO] [stdout]   --> src/lib.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | use  serde;
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]   --> src/lib.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 | use  serde_json;
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::value::RawValue`
[INFO] [stdout]   --> src/client.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use serde_json::value::RawValue;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]   --> src/lib.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | use  log;
[INFO] [stdout]    |      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde`
[INFO] [stdout]   --> src/lib.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | use  serde;
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]   --> src/lib.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 | use  serde_json;
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::value::RawValue`
[INFO] [stdout]   --> src/client.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use serde_json::value::RawValue;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.71s
[INFO] running `Command { std: "docker" "inspect" "bfa943f9f9eec143e8ab4258175616d4aee254b0ba6a033d51015cf6dc554025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa943f9f9eec143e8ab4258175616d4aee254b0ba6a033d51015cf6dc554025", kill_on_drop: false }`
[INFO] [stdout] bfa943f9f9eec143e8ab4258175616d4aee254b0ba6a033d51015cf6dc554025