[INFO] crate prometheus 0.9.0 is already in cache
[INFO] testing prometheus-0.9.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate prometheus 0.9.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate prometheus 0.9.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prometheus 0.9.0
[INFO] finished tweaking crates.io crate prometheus 0.9.0
[INFO] tweaked toml for crates.io crate prometheus 0.9.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate prometheus 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b87e45650a0cd7a277c49fe379adc6494b0a570c977d7b69f848a4f57682a9a
[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" "2b87e45650a0cd7a277c49fe379adc6494b0a570c977d7b69f848a4f57682a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b87e45650a0cd7a277c49fe379adc6494b0a570c977d7b69f848a4f57682a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b87e45650a0cd7a277c49fe379adc6494b0a570c977d7b69f848a4f57682a9a", kill_on_drop: false }`
[INFO] [stdout] 2b87e45650a0cd7a277c49fe379adc6494b0a570c977d7b69f848a4f57682a9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25a4cf6a885cbad4796ed277fd0b2ccf059ff4efe1956c4a684e92bd95838887
[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" "25a4cf6a885cbad4796ed277fd0b2ccf059ff4efe1956c4a684e92bd95838887", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling protobuf v2.10.1
[INFO] [stderr]    Compiling prometheus v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]    Compiling thiserror v1.0.9
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.35s
[INFO] running `Command { std: "docker" "inspect" "25a4cf6a885cbad4796ed277fd0b2ccf059ff4efe1956c4a684e92bd95838887", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25a4cf6a885cbad4796ed277fd0b2ccf059ff4efe1956c4a684e92bd95838887", kill_on_drop: false }`
[INFO] [stdout] 25a4cf6a885cbad4796ed277fd0b2ccf059ff4efe1956c4a684e92bd95838887
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76bd5d7e7fa23f33aa6266754af1240972b8c893a36d93e37c1bac425d6ecbc0
[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" "76bd5d7e7fa23f33aa6266754af1240972b8c893a36d93e37c1bac425d6ecbc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-project-lite v0.1.5
[INFO] [stderr]    Compiling httparse v1.2.4
[INFO] [stderr]    Compiling getopts v0.2.17
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.16
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling pin-project v0.4.16
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.5
[INFO] [stderr]    Compiling hyper v0.13.5
[INFO] [stderr]    Compiling prometheus v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 54.41s
[INFO] running `Command { std: "docker" "inspect" "76bd5d7e7fa23f33aa6266754af1240972b8c893a36d93e37c1bac425d6ecbc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76bd5d7e7fa23f33aa6266754af1240972b8c893a36d93e37c1bac425d6ecbc0", kill_on_drop: false }`
[INFO] [stdout] 76bd5d7e7fa23f33aa6266754af1240972b8c893a36d93e37c1bac425d6ecbc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 866c2f731dacfa9ce0df1ce32d5ee4e5884e35ed93f0e80c3ff1e7f5c6bbd184
[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" "866c2f731dacfa9ce0df1ce32d5ee4e5884e35ed93f0e80c3ff1e7f5c6bbd184", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/prometheus-2cc5e5f964feb9de
[INFO] [stdout] running 55 tests
[INFO] [stdout] test atomic64::test::test_atomic_i64 ... ok
[INFO] [stdout] test atomic64::test::test_atomic_f64 ... ok
[INFO] [stdout] test atomic64::test::test_atomic_u64 ... ok
[INFO] [stdout] test counter::tests::test_int_counter ... ok
[INFO] [stdout] test counter::tests::test_int_counter_vec ... ok
[INFO] [stdout] test desc::tests::test_invalid_const_label_name ... ok
[INFO] [stdout] test desc::tests::test_invalid_metric_name ... ok
[INFO] [stdout] test desc::tests::test_invalid_variable_label_name ... ok
[INFO] [stdout] test counter::tests::test_int_local_counter ... ok
[INFO] [stdout] test counter::tests::test_local_counter ... ok
[INFO] [stdout] test desc::tests::test_is_valid_label_name ... ok
[INFO] [stdout] test counter::tests::test_counter_vec_with_label_values ... ok
[INFO] [stdout] test counter::tests::test_int_counter_vec_local ... ok
[INFO] [stdout] test counter::tests::test_counter ... ok
[INFO] [stdout] test counter::tests::test_counter_vec_local ... ok
[INFO] [stdout] test counter::tests::test_counter_vec_with_labels ... ok
[INFO] [stdout] test gauge::tests::test_gauge_vec_with_label_values ... ok
[INFO] [stdout] test encoder::tests::test_bad_text_metrics ... ok
[INFO] [stdout] test histogram::tests::test_buckets_invalidation ... ok
[INFO] [stdout] test encoder::tests::test_bad_proto_metrics ... ok
[INFO] [stdout] test gauge::tests::test_gauge_vec_with_labels ... ok
[INFO] [stdout] test encoder::text::tests::test_text_encoder ... ok
[INFO] [stdout] test histogram::tests::test_histogram_vec_local ... ok
[INFO] [stdout] test histogram::tests::test_histogram_vec_with_label_values ... ok
[INFO] [stdout] test gauge::tests::test_gauge ... ok
[INFO] [stdout] test histogram::tests::test_histogram_local ... ok
[INFO] [stdout] test desc::tests::test_is_valid_metric_name ... ok
[INFO] [stdout] test encoder::text::tests::test_text_encoder_summary ... ok
[INFO] [stdout] test encoder::text::tests::test_text_encoder_histogram ... ok
[INFO] [stdout] test encoder::pb::tests::test_protobuf_encoder ... ok
[INFO] [stdout] test histogram::tests::test_histogram_vec_with_opts_buckets ... ok
[INFO] [stdout] test metrics::tests::test_label_cmp ... ok
[INFO] [stdout] test metrics::tests::test_build_fq_name ... ok
[INFO] [stdout] test histogram::tests::test_buckets_functions ... ok
[INFO] [stdout] test histogram::tests::test_duration_to_seconds ... ok
[INFO] [stdout] test registry::tests::test_with_labels_gather ... ok
[INFO] [stdout] test registry::tests::test_with_prefix_gather ... ok
[INFO] [stdout] test vec::tests::test_counter_vec_with_label_values ... ok
[INFO] [stdout] test vec::tests::test_gauge_vec_with_labels ... ok
[INFO] [stdout] test vec::tests::test_vec_get_metric_with ... ok
[INFO] [stdout] test registry::tests::test_default_registry ... ok
[INFO] [stdout] test timer::tests::test_duration_to_millis ... ok
[INFO] [stdout] test vec::tests::test_counter_vec_with_labels ... ok
[INFO] [stdout] test registry::tests::test_register_multiplecollector ... ok
[INFO] [stdout] test registry::tests::test_registry ... ok
[INFO] [stdout] test vec::tests::test_gauge_vec_with_label_values ... ok
[INFO] [stdout] test registry::tests::test_gather_order ... ok
[INFO] [stdout] test registry::tests::test_prune_empty_metric_family ... ok
[INFO] [stdout] test encoder::text::tests::test_escape_string ... ok
[INFO] [stdout] test counter::tests::test_counter_negative_inc ... ok
[INFO] [stdout] test counter::tests::test_int_local_counter_negative_inc ... ok
[INFO] [stdout] test counter::tests::test_local_counter_negative_inc ... ok
[INFO] [stdout] test counter::tests::test_int_counter_negative_inc ... ok
[INFO] [stdout] test timer::tests::test_time_update ... ok
[INFO] [stdout] test histogram::tests::test_histogram ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 55 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prometheus
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --test /opt/rustwide/workdir/src/lib.rs --crate-name prometheus -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cfg 'feature="protobuf"' --cfg 'feature="default"' --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-b00c34326580381c.rlib --extern fnv=/opt/rustwide/target/debug/deps/libfnv-e461bc511369ce67.rlib --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-6fd517a7b90ed023.rlib --extern hyper=/opt/rustwide/target/debug/deps/libhyper-8232150beea06ab0.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7c0477ae3415ac1f.rlib --extern prometheus=/opt/rustwide/target/debug/deps/libprometheus-6c77bd9ec4ac1df6.rlib --extern protobuf=/opt/rustwide/target/debug/deps/libprotobuf-191d11a2cbae86a3.rlib --extern spin=/opt/rustwide/target/debug/deps/libspin-35e209bbe476b247.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-421c52f2cfe2523a.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-c104fe641e89a331.rlib` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "866c2f731dacfa9ce0df1ce32d5ee4e5884e35ed93f0e80c3ff1e7f5c6bbd184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "866c2f731dacfa9ce0df1ce32d5ee4e5884e35ed93f0e80c3ff1e7f5c6bbd184", kill_on_drop: false }`
[INFO] [stdout] 866c2f731dacfa9ce0df1ce32d5ee4e5884e35ed93f0e80c3ff1e7f5c6bbd184