[INFO] fetching crate metrics-tracing-context 0.7.0...
[INFO] checking metrics-tracing-context-0.7.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate metrics-tracing-context 0.7.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate metrics-tracing-context 0.7.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-tracing-context 0.7.0
[INFO] finished tweaking crates.io crate metrics-tracing-context 0.7.0
[INFO] tweaked toml for crates.io crate metrics-tracing-context 0.7.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded metrics-util v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80010630a211d244ad515a1691f3c89ccf5b44e1219d52ff8aa6de8d87ac5cb6
[INFO] running `Command { std: "docker" "start" "-a" "80010630a211d244ad515a1691f3c89ccf5b44e1219d52ff8aa6de8d87ac5cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80010630a211d244ad515a1691f3c89ccf5b44e1219d52ff8aa6de8d87ac5cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80010630a211d244ad515a1691f3c89ccf5b44e1219d52ff8aa6de8d87ac5cb6", kill_on_drop: false }`
[INFO] [stdout] 80010630a211d244ad515a1691f3c89ccf5b44e1219d52ff8aa6de8d87ac5cb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f12a9ca35c0e18961eb90a15c647ce8bf4b7c7156a44ffbd443dcc26c705cf03
[INFO] running `Command { std: "docker" "start" "-a" "f12a9ca35c0e18961eb90a15c647ce8bf4b7c7156a44ffbd443dcc26c705cf03", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling metrics v0.17.0
[INFO] [stderr]     Checking atomic-shim v0.1.0
[INFO] [stderr]     Checking sketches-ddsketch v0.1.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking raw-cpuid v9.1.1
[INFO] [stderr]     Checking ordered-float v2.7.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking dashmap v4.0.2
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking quanta v0.7.2
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking indexmap v1.7.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling metrics-macros v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking metrics-util v0.10.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking tracing-subscriber v0.2.19
[INFO] [stderr]     Checking metrics-tracing-context v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `tracing_subscriber::registry::SpanRef::<'a, R>::parents`: equivalent to `self.parent().into_iter().flat_map(SpanRef::scope)`, but consider whether excluding `self` is actually intended
[INFO] [stdout]    --> src/tracing_integration.rs:111:28
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let parents = span.parents();
[INFO] [stdout]     |                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: use of deprecated associated function `tracing_subscriber::registry::SpanRef::<'a, R>::parents`: equivalent to `self.parent().into_iter().flat_map(SpanRef::scope)`, but consider whether excluding `self` is actually intended
[INFO] [stdout]    --> src/tracing_integration.rs:111:28
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let parents = span.parents();
[INFO] [stdout]     |                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.35s
[INFO] running `Command { std: "docker" "inspect" "f12a9ca35c0e18961eb90a15c647ce8bf4b7c7156a44ffbd443dcc26c705cf03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12a9ca35c0e18961eb90a15c647ce8bf4b7c7156a44ffbd443dcc26c705cf03", kill_on_drop: false }`
[INFO] [stdout] f12a9ca35c0e18961eb90a15c647ce8bf4b7c7156a44ffbd443dcc26c705cf03