[INFO] fetching crate bitcoincore-rpc-async 4.0.1-alpha.1...
[INFO] checking bitcoincore-rpc-async-4.0.1-alpha.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate bitcoincore-rpc-async 4.0.1-alpha.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate bitcoincore-rpc-async 4.0.1-alpha.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoincore-rpc-async 4.0.1-alpha.1
[INFO] finished tweaking crates.io crate bitcoincore-rpc-async 4.0.1-alpha.1
[INFO] tweaked toml for crates.io crate bitcoincore-rpc-async 4.0.1-alpha.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate bitcoincore-rpc-async 4.0.1-alpha.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.36
[INFO] [stderr]   Downloaded tokio-macros v1.7.0
[INFO] [stderr]   Downloaded bech32 v0.8.1
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[INFO] [stderr]   Downloaded bitcoincore-rpc-json-async v4.0.0-alpha.0
[INFO] [stderr]   Downloaded bitcoin_hashes v0.10.0
[INFO] [stderr]   Downloaded sapio-secp256k1 v0.21.6
[INFO] [stderr]   Downloaded sapio-secp256k1-sys v0.21.4
[INFO] [stderr]   Downloaded libc v0.2.119
[INFO] [stderr]   Downloaded tokio v1.17.0
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[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.32.0
[INFO] [stderr]   Downloaded sapio-bitcoin v0.28.0-rc.3
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.32.0
[INFO] [stderr]   Downloaded serde_json v1.0.79
[INFO] [stderr]   Downloaded syn v1.0.86
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[INFO] [stderr]   Downloaded serde_derive v1.0.136
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[INFO] [stderr]   Downloaded mio v0.8.0
[INFO] [stderr]   Downloaded parking_lot_core v0.9.1
[INFO] [stderr]   Downloaded async-trait v0.1.52
[INFO] [stderr]   Downloaded base64-compat v1.0.0
[INFO] [stderr]   Downloaded windows-sys v0.32.0
[INFO] [stderr]   Downloaded jsonrpc-async v2.0.2
[INFO] [stderr]   Downloaded itoa v1.0.1
[INFO] [stderr]   Downloaded once_cell v1.9.0
[INFO] [stderr]   Downloaded lock_api v0.4.6
[INFO] [stderr]   Downloaded socket2 v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4650a44c91a2f11adf2728c1d220d8417e88b710af71dc5274f25aef79e2cdf5
[INFO] running `Command { std: "docker" "start" "-a" "4650a44c91a2f11adf2728c1d220d8417e88b710af71dc5274f25aef79e2cdf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4650a44c91a2f11adf2728c1d220d8417e88b710af71dc5274f25aef79e2cdf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4650a44c91a2f11adf2728c1d220d8417e88b710af71dc5274f25aef79e2cdf5", kill_on_drop: false }`
[INFO] [stdout] 4650a44c91a2f11adf2728c1d220d8417e88b710af71dc5274f25aef79e2cdf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c72230ddeb6691be44708f46652813288651a0fbd98e676e061381459723e657
[INFO] running `Command { std: "docker" "start" "-a" "c72230ddeb6691be44708f46652813288651a0fbd98e676e061381459723e657", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bech32 v0.8.1
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking base64-compat v1.0.0
[INFO] [stderr]    Compiling sapio-secp256k1-sys v0.21.4
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking sapio-secp256k1 v0.21.6
[INFO] [stderr]     Checking bitcoin_hashes v0.10.0
[INFO] [stderr]     Checking jsonrpc-async v2.0.2
[INFO] [stderr]     Checking sapio-bitcoin v0.28.0-rc.3
[INFO] [stderr]     Checking bitcoincore-rpc-json-async v4.0.0-alpha.0
[INFO] [stderr]     Checking bitcoincore-rpc-async v4.0.1-alpha.1 (/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: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/client.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/error.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/queryable.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[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: the item `bitcoin` is imported redundantly
[INFO] [stdout]     --> src/client.rs:1135:9
[INFO] [stdout]      |
[INFO] [stdout] 1134 |     use super::*;
[INFO] [stdout]      |         -------- the item `bitcoin` is already imported here
[INFO] [stdout] 1135 |     use bitcoin;
[INFO] [stdout]      |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]     --> src/client.rs:1136:9
[INFO] [stdout]      |
[INFO] [stdout] 1134 |     use super::*;
[INFO] [stdout]      |         -------- the item `serde_json` is already imported here
[INFO] [stdout] 1135 |     use bitcoin;
[INFO] [stdout] 1136 |     use serde_json;
[INFO] [stdout]      |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio` is imported redundantly
[INFO] [stdout]     --> src/client.rs:1137:9
[INFO] [stdout]      |
[INFO] [stdout] 1137 |     use tokio;
[INFO] [stdout]      |         ^^^^^ the item `tokio` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/error.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/queryable.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `bitcoincore_rpc_json_async::sapio_bitcoin::sapio_secp256k1::Signature`: Use ecdsa::Signature instead.
[INFO] [stdout]   --> src/client.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 | use bitcoin::secp256k1::Signature;
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `bitcoincore_rpc_json_async::sapio_bitcoin::sapio_secp256k1::Signature`: Use ecdsa::Signature instead.
[INFO] [stdout]   --> src/client.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 | use bitcoin::secp256k1::Signature;
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `bitcoincore_rpc_json_async::sapio_bitcoin::sapio_secp256k1::Signature`: Use ecdsa::Signature instead.
[INFO] [stdout]    --> src/client.rs:806:21
[INFO] [stdout]     |
[INFO] [stdout] 806 |         signature: &Signature,
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `bitcoincore_rpc_json_async::sapio_bitcoin::sapio_secp256k1::Signature`: Use ecdsa::Signature instead.
[INFO] [stdout]    --> src/client.rs:806:21
[INFO] [stdout]     |
[INFO] [stdout] 806 |         signature: &Signature,
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bitcoincore_rpc_async` is imported redundantly
[INFO] [stdout]   --> examples/test_against_node.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use bitcoincore_rpc_async;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^ the item `bitcoincore_rpc_async` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio` is imported redundantly
[INFO] [stdout]   --> examples/test_against_node.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use tokio;
[INFO] [stdout]    |     ^^^^^ the item `tokio` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bitcoincore_rpc_async` is imported redundantly
[INFO] [stdout]   --> examples/retry_client.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use bitcoincore_rpc_async;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^ the item `bitcoincore_rpc_async` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> examples/retry_client.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use serde;
[INFO] [stdout]    |     ^^^^^ the item `serde` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> examples/retry_client.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.82s
[INFO] running `Command { std: "docker" "inspect" "c72230ddeb6691be44708f46652813288651a0fbd98e676e061381459723e657", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c72230ddeb6691be44708f46652813288651a0fbd98e676e061381459723e657", kill_on_drop: false }`
[INFO] [stdout] c72230ddeb6691be44708f46652813288651a0fbd98e676e061381459723e657