[INFO] fetching crate opcua-server 0.7.0...
[INFO] checking opcua-server-0.7.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate opcua-server 0.7.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate opcua-server 0.7.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate opcua-server 0.7.0
[INFO] finished tweaking crates.io crate opcua-server 0.7.0
[INFO] tweaked toml for crates.io crate opcua-server 0.7.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opcua-types v0.7.0
[INFO] [stderr]   Downloaded opcua-client v0.7.0
[INFO] [stderr]   Downloaded opcua-console-logging v0.7.0
[INFO] [stderr]   Downloaded opcua-core v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b11768b82b3ece8afe75264a71c43388f75cd2d45560b46839dde714b4d4b09f
[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" "b11768b82b3ece8afe75264a71c43388f75cd2d45560b46839dde714b4d4b09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b11768b82b3ece8afe75264a71c43388f75cd2d45560b46839dde714b4d4b09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b11768b82b3ece8afe75264a71c43388f75cd2d45560b46839dde714b4d4b09f", kill_on_drop: false }`
[INFO] [stdout] b11768b82b3ece8afe75264a71c43388f75cd2d45560b46839dde714b4d4b09f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b815b2a8f8f4bf56218a6722424e836b47c6b35f13498b3ca785e1c832fb4dc
[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" "8b815b2a8f8f4bf56218a6722424e836b47c6b35f13498b3ca785e1c832fb4dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
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[INFO] [stderr]    Compiling parking_lot_core v0.6.2
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[INFO] [stderr]     Checking opcua-console-logging v0.7.0
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[INFO] [stderr]     Checking opcua-types v0.7.0
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking opcua-core v0.7.0
[INFO] [stderr]     Checking opcua-server v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `server_state`
[INFO] [stdout]   --> src/tests/services/subscription.rs:36:35
[INFO] [stdout]    |
[INFO] [stdout] 36 |     do_subscription_service_test(|server_state, session, _, ss, _| {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_server_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `session`
[INFO] [stdout]   --> src/tests/services/subscription.rs:36:49
[INFO] [stdout]    |
[INFO] [stdout] 36 |     do_subscription_service_test(|server_state, session, _, ss, _| {
[INFO] [stdout]    |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_session`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ss`
[INFO] [stdout]   --> src/tests/services/subscription.rs:36:61
[INFO] [stdout]    |
[INFO] [stdout] 36 |     do_subscription_service_test(|server_state, session, _, ss, _| {
[INFO] [stdout]    |                                                             ^^ help: if this is intentional, prefix it with an underscore: `_ss`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subscription_id`
[INFO] [stdout]    --> src/tests/services/subscription.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |         let subscription_id = create_subscription(server_state, session, &ss);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subscription_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address_space`
[INFO] [stdout]    --> src/tests/services/subscription.rs:230:58
[INFO] [stdout]     |
[INFO] [stdout] 230 |     do_subscription_service_test(|server_state, session, address_space, ss, mis| {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address_space`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mis`
[INFO] [stdout]    --> src/tests/services/subscription.rs:230:77
[INFO] [stdout]     |
[INFO] [stdout] 230 |     do_subscription_service_test(|server_state, session, address_space, ss, mis| {
[INFO] [stdout]     |                                                                             ^^^ help: if this is intentional, prefix it with an underscore: `_mis`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `server_state`
[INFO] [stdout]    --> src/tests/services/subscription.rs:240:35
[INFO] [stdout]     |
[INFO] [stdout] 240 |     do_subscription_service_test(|server_state, session, address_space, ss, mis| {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_server_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `session`
[INFO] [stdout]    --> src/tests/services/subscription.rs:240:49
[INFO] [stdout]     |
[INFO] [stdout] 240 |     do_subscription_service_test(|server_state, session, address_space, ss, mis| {
[INFO] [stdout]     |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_session`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address_space`
[INFO] [stdout]    --> src/tests/services/subscription.rs:240:58
[INFO] [stdout]     |
[INFO] [stdout] 240 |     do_subscription_service_test(|server_state, session, address_space, ss, mis| {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address_space`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ss`
[INFO] [stdout]    --> src/tests/services/subscription.rs:240:73
[INFO] [stdout]     |
[INFO] [stdout] 240 |     do_subscription_service_test(|server_state, session, address_space, ss, mis| {
[INFO] [stdout]     |                                                                         ^^ help: if this is intentional, prefix it with an underscore: `_ss`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mis`
[INFO] [stdout]    --> src/tests/services/subscription.rs:240:77
[INFO] [stdout]     |
[INFO] [stdout] 240 |     do_subscription_service_test(|server_state, session, address_space, ss, mis| {
[INFO] [stdout]     |                                                                             ^^^ help: if this is intentional, prefix it with an underscore: `_mis`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 35s
[INFO] running `Command { std: "docker" "inspect" "8b815b2a8f8f4bf56218a6722424e836b47c6b35f13498b3ca785e1c832fb4dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b815b2a8f8f4bf56218a6722424e836b47c6b35f13498b3ca785e1c832fb4dc", kill_on_drop: false }`
[INFO] [stdout] 8b815b2a8f8f4bf56218a6722424e836b47c6b35f13498b3ca785e1c832fb4dc