[INFO] fetching crate pact_verifier 0.10.1...
[INFO] checking pact_verifier-0.10.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate pact_verifier 0.10.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pact_verifier 0.10.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pact_verifier 0.10.1
[INFO] finished tweaking crates.io crate pact_verifier 0.10.1
[INFO] tweaked toml for crates.io crate pact_verifier 0.10.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae5c1f4b03a0d3bcd40b04ee6f5927f09a7861dc6e0a9e3bc298c4c704a6e0c3
[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" "ae5c1f4b03a0d3bcd40b04ee6f5927f09a7861dc6e0a9e3bc298c4c704a6e0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae5c1f4b03a0d3bcd40b04ee6f5927f09a7861dc6e0a9e3bc298c4c704a6e0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae5c1f4b03a0d3bcd40b04ee6f5927f09a7861dc6e0a9e3bc298c4c704a6e0c3", kill_on_drop: false }`
[INFO] [stdout] ae5c1f4b03a0d3bcd40b04ee6f5927f09a7861dc6e0a9e3bc298c4c704a6e0c3
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90248eb90e0d0271665c1990ee8e0506a3e8c3b58ed02e993d252ca5cabc454d
[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" "90248eb90e0d0271665c1990ee8e0506a3e8c3b58ed02e993d252ca5cabc454d", kill_on_drop: false }`
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[INFO] [stderr]     Checking tokio-util v0.6.2
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[INFO] [stderr]     Checking pact_mock_server v0.7.14
[INFO] [stderr]     Checking pact_verifier v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking pact_consumer v0.7.3
[INFO] [stdout] warning: unused variable: `verification_context`
[INFO] [stdout]   --> src/messages.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |   verification_context: &HashMap<&str, Value>
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verification_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout] 536 |     Ok(mut runtime) => runtime.block_on(
[INFO] [stdout]     |        ----^^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verification_context`
[INFO] [stdout]   --> src/messages.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |   verification_context: &HashMap<&str, Value>
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verification_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout] 536 |     Ok(mut runtime) => runtime.block_on(
[INFO] [stdout]     |        ----^^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tests.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |     let mut runtime = tokio::runtime::Builder::new_current_thread()
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 06s
[INFO] running `Command { std: "docker" "inspect" "90248eb90e0d0271665c1990ee8e0506a3e8c3b58ed02e993d252ca5cabc454d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90248eb90e0d0271665c1990ee8e0506a3e8c3b58ed02e993d252ca5cabc454d", kill_on_drop: false }`
[INFO] [stdout] 90248eb90e0d0271665c1990ee8e0506a3e8c3b58ed02e993d252ca5cabc454d