[INFO] fetching crate prometheus_exporter_base 1.1.0...
[INFO] testing prometheus_exporter_base-1.1.0 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate prometheus_exporter_base 1.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate prometheus_exporter_base 1.1.0 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prometheus_exporter_base 1.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate prometheus_exporter_base 1.1.0
[INFO] tweaked toml for crates.io crate prometheus_exporter_base 1.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate prometheus_exporter_base 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 3e17e1599f62d1a050b2b54a46d3c2b88079b40d6800d9290c96547a73e96a0b
[INFO] running `Command { std: "docker" "start" "-a" "3e17e1599f62d1a050b2b54a46d3c2b88079b40d6800d9290c96547a73e96a0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e17e1599f62d1a050b2b54a46d3c2b88079b40d6800d9290c96547a73e96a0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e17e1599f62d1a050b2b54a46d3c2b88079b40d6800d9290c96547a73e96a0b", kill_on_drop: false }`
[INFO] [stdout] 3e17e1599f62d1a050b2b54a46d3c2b88079b40d6800d9290c96547a73e96a0b
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2308f755641b07d88cfc10e8a1ca060727f4f57ca8b4f967e03d063b54fe4864
[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" "2308f755641b07d88cfc10e8a1ca060727f4f57ca8b4f967e03d063b54fe4864", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling object v0.20.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling prometheus_exporter_base v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `Command { std: "docker" "inspect" "2308f755641b07d88cfc10e8a1ca060727f4f57ca8b4f967e03d063b54fe4864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2308f755641b07d88cfc10e8a1ca060727f4f57ca8b4f967e03d063b54fe4864", kill_on_drop: false }`
[INFO] [stdout] 2308f755641b07d88cfc10e8a1ca060727f4f57ca8b4f967e03d063b54fe4864
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0e5b5a9c5e83ab17cc26cd8d8d5a4cb3c0d032bcc126d1d958a844cce733b29
[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" "d0e5b5a9c5e83ab17cc26cd8d8d5a4cb3c0d032bcc126d1d958a844cce733b29", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-project-lite v0.1.7
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling prometheus_exporter_base v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.65s
[INFO] running `Command { std: "docker" "inspect" "d0e5b5a9c5e83ab17cc26cd8d8d5a4cb3c0d032bcc126d1d958a844cce733b29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0e5b5a9c5e83ab17cc26cd8d8d5a4cb3c0d032bcc126d1d958a844cce733b29", kill_on_drop: false }`
[INFO] [stdout] d0e5b5a9c5e83ab17cc26cd8d8d5a4cb3c0d032bcc126d1d958a844cce733b29
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3411d06a1f0366a9e3541d2004ef34c96aeb8d3f173ae909f4c0a80f12963f9c
[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" "3411d06a1f0366a9e3541d2004ef34c96aeb8d3f173ae909f4c0a80f12963f9c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/prometheus_exporter_base-caf4ce51b8de5374
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test metric_type::tests::test_display ... ok
[INFO] [stdout] test metric_type::tests::test_as_ref ... ok
[INFO] [stdout] test metric_type::tests::test_try_from_ok ... ok
[INFO] [stdout] test prometheus_metric::tests::test_header ... ok
[INFO] [stdout] test prometheus_metric::tests::test_no_labels ... ok
[INFO] [stdout] test prometheus_metric::tests::test_labels ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prometheus_exporter_base
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/prometheus_instance.rs - prometheus_instance::PrometheusInstance::with_value (line 113) ... ok
[INFO] [stdout] test src/prometheus_instance.rs - prometheus_instance::PrometheusInstance::with_current_timestamp (line 90) ... ok
[INFO] [stdout] test src/prometheus_instance.rs - prometheus_instance::PrometheusInstance::with_timestamp (line 69) ... ok
[INFO] [stdout] test src/prometheus_metric_builder.rs - prometheus_metric_builder::PrometheusMetricBuilder::build (line 153) ... ok
[INFO] [stdout] test src/prometheus_metric.rs - prometheus_metric::PrometheusMetric::build (line 32) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/prometheus_metric.rs - prometheus_metric::PrometheusMetric::render_and_append_instance (line 66) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3411d06a1f0366a9e3541d2004ef34c96aeb8d3f173ae909f4c0a80f12963f9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3411d06a1f0366a9e3541d2004ef34c96aeb8d3f173ae909f4c0a80f12963f9c", kill_on_drop: false }`
[INFO] [stdout] 3411d06a1f0366a9e3541d2004ef34c96aeb8d3f173ae909f4c0a80f12963f9c