[INFO] fetching crate bitcoincore-rpc-async 4.0.1-alpha.2...
[INFO] checking bitcoincore-rpc-async-4.0.1-alpha.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate bitcoincore-rpc-async 4.0.1-alpha.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate bitcoincore-rpc-async 4.0.1-alpha.2 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoincore-rpc-async 4.0.1-alpha.2
[INFO] finished tweaking crates.io crate bitcoincore-rpc-async 4.0.1-alpha.2
[INFO] tweaked toml for crates.io crate bitcoincore-rpc-async 4.0.1-alpha.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate bitcoincore-rpc-async 4.0.1-alpha.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0585aa12fc1ff274e3060959981535f4b245b9305035486d5e64a16a0dd7fda8
[INFO] running `Command { std: "docker" "start" "-a" "0585aa12fc1ff274e3060959981535f4b245b9305035486d5e64a16a0dd7fda8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0585aa12fc1ff274e3060959981535f4b245b9305035486d5e64a16a0dd7fda8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0585aa12fc1ff274e3060959981535f4b245b9305035486d5e64a16a0dd7fda8", kill_on_drop: false }`
[INFO] [stdout] 0585aa12fc1ff274e3060959981535f4b245b9305035486d5e64a16a0dd7fda8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc6cffd90d28506e84e990b760f088eb2e830f33375e878326ad56559d3cada6
[INFO] running `Command { std: "docker" "start" "-a" "fc6cffd90d28506e84e990b760f088eb2e830f33375e878326ad56559d3cada6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking smallvec v1.12.0
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking bech32 v0.8.1
[INFO] [stderr]     Checking base64-compat v1.0.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling sapio-secp256k1-sys v0.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking sapio-secp256k1 v0.28.1
[INFO] [stderr]     Checking bitcoin_hashes v0.10.0
[INFO] [stderr]     Checking jsonrpc-async v2.0.2
[INFO] [stderr]     Checking sapio-bitcoin v0.28.2
[INFO] [stderr]     Checking bitcoincore-rpc-json-async v4.0.1-alpha.2
[INFO] [stderr]     Checking bitcoincore-rpc-async v4.0.1-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.72s
[INFO] running `Command { std: "docker" "inspect" "fc6cffd90d28506e84e990b760f088eb2e830f33375e878326ad56559d3cada6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc6cffd90d28506e84e990b760f088eb2e830f33375e878326ad56559d3cada6", kill_on_drop: false }`
[INFO] [stdout] fc6cffd90d28506e84e990b760f088eb2e830f33375e878326ad56559d3cada6