[INFO] fetching crate prometheus_exporter_base 1.3.0...
[INFO] testing prometheus_exporter_base-1.3.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate prometheus_exporter_base 1.3.0 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate prometheus_exporter_base 1.3.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prometheus_exporter_base 1.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate prometheus_exporter_base 1.3.0
[INFO] tweaked toml for crates.io crate prometheus_exporter_base 1.3.0 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] crate crates.io crate prometheus_exporter_base 1.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded pin-project v1.0.6
[INFO] [stderr]   Downloaded pin-project-internal v1.0.6
[INFO] [stderr]   Downloaded syn v1.0.67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb892343d733706cf18c11519b021d4fe83adb51c97530f37518506b9a7ef172
[INFO] running `Command { std: "docker" "start" "-a" "fb892343d733706cf18c11519b021d4fe83adb51c97530f37518506b9a7ef172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb892343d733706cf18c11519b021d4fe83adb51c97530f37518506b9a7ef172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb892343d733706cf18c11519b021d4fe83adb51c97530f37518506b9a7ef172", kill_on_drop: false }`
[INFO] [stdout] fb892343d733706cf18c11519b021d4fe83adb51c97530f37518506b9a7ef172
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 168cc06d55182843cb2c204819aab1f5e467f8b9c7d064126c86fa11cfb80d8d
[INFO] running `Command { std: "docker" "start" "-a" "168cc06d55182843cb2c204819aab1f5e467f8b9c7d064126c86fa11cfb80d8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling prometheus_exporter_base v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.72s
[INFO] running `Command { std: "docker" "inspect" "168cc06d55182843cb2c204819aab1f5e467f8b9c7d064126c86fa11cfb80d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "168cc06d55182843cb2c204819aab1f5e467f8b9c7d064126c86fa11cfb80d8d", kill_on_drop: false }`
[INFO] [stdout] 168cc06d55182843cb2c204819aab1f5e467f8b9c7d064126c86fa11cfb80d8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5222cc00a87e3e30e7bc2f8ad79f6b05e5ac688b46882c96e75453c76419b2ed
[INFO] running `Command { std: "docker" "start" "-a" "5222cc00a87e3e30e7bc2f8ad79f6b05e5ac688b46882c96e75453c76419b2ed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling prometheus_exporter_base v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.94s
[INFO] running `Command { std: "docker" "inspect" "5222cc00a87e3e30e7bc2f8ad79f6b05e5ac688b46882c96e75453c76419b2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5222cc00a87e3e30e7bc2f8ad79f6b05e5ac688b46882c96e75453c76419b2ed", kill_on_drop: false }`
[INFO] [stdout] 5222cc00a87e3e30e7bc2f8ad79f6b05e5ac688b46882c96e75453c76419b2ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5cb4ea765c8892fa556ef45859827afc4ededaa5cf03b852c3b3e884e91bc675
[INFO] running `Command { std: "docker" "start" "-a" "5cb4ea765c8892fa556ef45859827afc4ededaa5cf03b852c3b3e884e91bc675", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.75s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prometheus_exporter_base-d580dc961663a071)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test metric_type::tests::test_as_ref ... ok
[INFO] [stdout] test metric_type::tests::test_display ... 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_labels ... ok
[INFO] [stdout] test prometheus_metric::tests::test_no_labels ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[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_current_timestamp (line 90) ... ok
[INFO] [stdout] test src/prometheus_metric.rs - prometheus_metric::PrometheusMetric::build (line 32) ... ok
[INFO] [stdout] test src/prometheus_instance.rs - prometheus_instance::PrometheusInstance::with_value (line 113) ... ok
[INFO] [stdout] test src/prometheus_metric_builder.rs - prometheus_metric_builder::PrometheusMetricBuilder::build (line 153) ... ok
[INFO] [stdout] test src/prometheus_instance.rs - prometheus_instance::PrometheusInstance::with_timestamp (line 69) ... 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; finished in 1.38s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5cb4ea765c8892fa556ef45859827afc4ededaa5cf03b852c3b3e884e91bc675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cb4ea765c8892fa556ef45859827afc4ededaa5cf03b852c3b3e884e91bc675", kill_on_drop: false }`
[INFO] [stdout] 5cb4ea765c8892fa556ef45859827afc4ededaa5cf03b852c3b3e884e91bc675