[INFO] crate metrics-exporter-prometheus 0.1.0-alpha.2 is already in cache
[INFO] checking metrics-exporter-prometheus-0.1.0-alpha.2 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] extracting crate metrics-exporter-prometheus 0.1.0-alpha.2 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate metrics-exporter-prometheus 0.1.0-alpha.2 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-exporter-prometheus 0.1.0-alpha.2
[INFO] finished tweaking crates.io crate metrics-exporter-prometheus 0.1.0-alpha.2
[INFO] tweaked toml for crates.io crate metrics-exporter-prometheus 0.1.0-alpha.2 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate metrics-exporter-prometheus 0.1.0-alpha.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 85609e9060d5ee567db90855242c8a9c6b224ca5d5763fb8bf820bf156bf45a0
[INFO] running `Command { std: "docker" "start" "-a" "85609e9060d5ee567db90855242c8a9c6b224ca5d5763fb8bf820bf156bf45a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85609e9060d5ee567db90855242c8a9c6b224ca5d5763fb8bf820bf156bf45a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85609e9060d5ee567db90855242c8a9c6b224ca5d5763fb8bf820bf156bf45a0", kill_on_drop: false }`
[INFO] [stdout] 85609e9060d5ee567db90855242c8a9c6b224ca5d5763fb8bf820bf156bf45a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bf10a2a8e8a29eea625d66c1d6b4feab4778a877c2ceed1597beeec1960bce6
[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" "0bf10a2a8e8a29eea625d66c1d6b4feab4778a877c2ceed1597beeec1960bce6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling metrics v0.13.0-alpha.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking im v14.3.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking quanta v0.5.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking hdrhistogram v7.1.0
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]     Checking tracing-serde v0.1.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]    Compiling metrics-macros v0.1.0-alpha.1
[INFO] [stderr]     Checking tracing v0.1.15
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking metrics-util v0.4.0-alpha.1
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking hyper v0.13.6
[INFO] [stderr]     Checking metrics-exporter-prometheus v0.1.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
[INFO] running `Command { std: "docker" "inspect" "0bf10a2a8e8a29eea625d66c1d6b4feab4778a877c2ceed1597beeec1960bce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf10a2a8e8a29eea625d66c1d6b4feab4778a877c2ceed1597beeec1960bce6", kill_on_drop: false }`
[INFO] [stdout] 0bf10a2a8e8a29eea625d66c1d6b4feab4778a877c2ceed1597beeec1960bce6