[INFO] cloning repository https://github.com/fastly/prometheus-utils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fastly/prometheus-utils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffastly%2Fprometheus-utils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffastly%2Fprometheus-utils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8edc18dc46d7a3173b55f837f47111cb73c15913
[INFO] testing fastly/prometheus-utils against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffastly%2Fprometheus-utils" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fastly/prometheus-utils on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/fastly/prometheus-utils
[INFO] finished tweaking git repo https://github.com/fastly/prometheus-utils
[INFO] tweaked toml for git repo https://github.com/fastly/prometheus-utils written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/fastly/prometheus-utils already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ff8ae6490f3526ad9fb372e69afb909351fc6f65858e3638d4454a51b3939d2
[INFO] running `Command { std: "docker" "start" "-a" "7ff8ae6490f3526ad9fb372e69afb909351fc6f65858e3638d4454a51b3939d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ff8ae6490f3526ad9fb372e69afb909351fc6f65858e3638d4454a51b3939d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ff8ae6490f3526ad9fb372e69afb909351fc6f65858e3638d4454a51b3939d2", kill_on_drop: false }`
[INFO] [stdout] 7ff8ae6490f3526ad9fb372e69afb909351fc6f65858e3638d4454a51b3939d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aebe22792873327d0f164833964c97078d0b8214716ec27dcb98c78a8cae1a5
[INFO] running `Command { std: "docker" "start" "-a" "8aebe22792873327d0f164833964c97078d0b8214716ec27dcb98c78a8cae1a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling protobuf v2.24.1
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling prometheus-utils v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]   --> src/instrumented_future.rs:59:55
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pre_polls: Vec<Box<dyn FnOnce() -> Option<Box<dyn Drop + Send>> + Send>>,
[INFO] [stdout]    |                                                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dyn_drop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]   --> src/instrumented_future.rs:71:34
[INFO] [stdout]    |
[INFO] [stdout] 71 |     resource_guards: Vec<Box<dyn Drop + Send>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]    --> src/instrumented_future.rs:132:59
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn with_guard<GuardFn: FnOnce() -> Option<Box<dyn Drop + Send>> + Send + 'static>(
[INFO] [stdout]     |                                                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.31s
[INFO] running `Command { std: "docker" "inspect" "8aebe22792873327d0f164833964c97078d0b8214716ec27dcb98c78a8cae1a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aebe22792873327d0f164833964c97078d0b8214716ec27dcb98c78a8cae1a5", kill_on_drop: false }`
[INFO] [stdout] 8aebe22792873327d0f164833964c97078d0b8214716ec27dcb98c78a8cae1a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aba066af4af06779a9f6cb88b88ce386694cb0cfbf1a38c81757cf361b98b143
[INFO] running `Command { std: "docker" "start" "-a" "aba066af4af06779a9f6cb88b88ce386694cb0cfbf1a38c81757cf361b98b143", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]   --> src/instrumented_future.rs:59:55
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pre_polls: Vec<Box<dyn FnOnce() -> Option<Box<dyn Drop + Send>> + Send>>,
[INFO] [stdout]    |                                                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dyn_drop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]   --> src/instrumented_future.rs:71:34
[INFO] [stdout]    |
[INFO] [stdout] 71 |     resource_guards: Vec<Box<dyn Drop + Send>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]    --> src/instrumented_future.rs:132:59
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn with_guard<GuardFn: FnOnce() -> Option<Box<dyn Drop + Send>> + Send + 'static>(
[INFO] [stdout]     |                                                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling prometheus-utils v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]   --> src/instrumented_future.rs:59:55
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pre_polls: Vec<Box<dyn FnOnce() -> Option<Box<dyn Drop + Send>> + Send>>,
[INFO] [stdout]    |                                                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dyn_drop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]   --> src/instrumented_future.rs:71:34
[INFO] [stdout]    |
[INFO] [stdout] 71 |     resource_guards: Vec<Box<dyn Drop + Send>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]    --> src/instrumented_future.rs:132:59
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn with_guard<GuardFn: FnOnce() -> Option<Box<dyn Drop + Send>> + Send + 'static>(
[INFO] [stdout]     |                                                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.63s
[INFO] running `Command { std: "docker" "inspect" "aba066af4af06779a9f6cb88b88ce386694cb0cfbf1a38c81757cf361b98b143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aba066af4af06779a9f6cb88b88ce386694cb0cfbf1a38c81757cf361b98b143", kill_on_drop: false }`
[INFO] [stdout] aba066af4af06779a9f6cb88b88ce386694cb0cfbf1a38c81757cf361b98b143
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 219607daca763b98e4f8887f54470b138fc6a24e042dfc677ef4383b7ab98fd7
[INFO] running `Command { std: "docker" "start" "-a" "219607daca763b98e4f8887f54470b138fc6a24e042dfc677ef4383b7ab98fd7", kill_on_drop: false }`
[INFO] [stderr] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stderr]   --> src/instrumented_future.rs:59:55
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pre_polls: Vec<Box<dyn FnOnce() -> Option<Box<dyn Drop + Send>> + Send>>,
[INFO] [stderr]    |                                                       ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dyn_drop)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stderr]   --> src/instrumented_future.rs:71:34
[INFO] [stderr]    |
[INFO] [stderr] 71 |     resource_guards: Vec<Box<dyn Drop + Send>>,
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stderr]    --> src/instrumented_future.rs:132:59
[INFO] [stderr]     |
[INFO] [stderr] 132 |     pub fn with_guard<GuardFn: FnOnce() -> Option<Box<dyn Drop + Send>> + Send + 'static>(
[INFO] [stderr]     |                                                           ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `prometheus-utils` (lib) generated 3 warnings
[INFO] [stderr] warning: `prometheus-utils` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prometheus_utils-ae228da608bff90e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test percentile::tests::test_percentiles_are_reported ... ok
[INFO] [stdout] test percentile::tests::test_overflow_wraps_writes ... ok
[INFO] [stdout] test percentile::tests::test_small_sampleset ... ok
[INFO] [stdout] test percentile::tests::test_wraps_are_reported ... ok
[INFO] [stdout] test instrumented_future::counters_increment_only_when_futures_run ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prometheus-utils
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - label_enum (line 84) ... ignored
[INFO] [stdout] test src/lib.rs - label_enum (line 97) ... ignored
[INFO] [stdout] test src/instrumented_future.rs - instrumented_future::InstrumentedFuture<F>::with_guard (line 101) - compile ... ok
[INFO] [stdout] test src/instrumented_future.rs - instrumented_future::InstrumentedFuture (line 23) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "219607daca763b98e4f8887f54470b138fc6a24e042dfc677ef4383b7ab98fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "219607daca763b98e4f8887f54470b138fc6a24e042dfc677ef4383b7ab98fd7", kill_on_drop: false }`
[INFO] [stdout] 219607daca763b98e4f8887f54470b138fc6a24e042dfc677ef4383b7ab98fd7