[INFO] fetching crate serde_prometheus 0.1.5...
[INFO] testing serde_prometheus-0.1.5 against 1.49.0 for beta-1.50-1
[INFO] extracting crate serde_prometheus 0.1.5 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate serde_prometheus 0.1.5 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_prometheus 0.1.5
[INFO] finished tweaking crates.io crate serde_prometheus 0.1.5
[INFO] tweaked toml for crates.io crate serde_prometheus 0.1.5 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate serde_prometheus 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] bd59183daabb33fe306f3e798365e0d8307ce69bf8f192a455ae2f41ff7deeb9
[INFO] running `Command { std: "docker" "start" "-a" "bd59183daabb33fe306f3e798365e0d8307ce69bf8f192a455ae2f41ff7deeb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd59183daabb33fe306f3e798365e0d8307ce69bf8f192a455ae2f41ff7deeb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd59183daabb33fe306f3e798365e0d8307ce69bf8f192a455ae2f41ff7deeb9", kill_on_drop: false }`
[INFO] [stdout] bd59183daabb33fe306f3e798365e0d8307ce69bf8f192a455ae2f41ff7deeb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0359d0b7155a37bd816013071c40a337af638b0f0772be6e1b08a29543b1da3
[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" "c0359d0b7155a37bd816013071c40a337af638b0f0772be6e1b08a29543b1da3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.20
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling ftoa v0.1.1
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling snafu-derive v0.6.8
[INFO] [stderr]    Compiling snafu v0.6.8
[INFO] [stderr]    Compiling serde_prometheus v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.84s
[INFO] running `Command { std: "docker" "inspect" "c0359d0b7155a37bd816013071c40a337af638b0f0772be6e1b08a29543b1da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0359d0b7155a37bd816013071c40a337af638b0f0772be6e1b08a29543b1da3", kill_on_drop: false }`
[INFO] [stdout] c0359d0b7155a37bd816013071c40a337af638b0f0772be6e1b08a29543b1da3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 6a5cf6bac8335be8aebadc492353673655e8f3e6ebfb91e305dfcd2507669ad5
[INFO] running `Command { std: "docker" "start" "-a" "6a5cf6bac8335be8aebadc492353673655e8f3e6ebfb91e305dfcd2507669ad5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling auto_enums_derive v0.5.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling arc-swap v0.4.6
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling atomic v0.4.5
[INFO] [stderr]    Compiling pin-project-lite v0.1.5
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling derive_utils v0.9.1
[INFO] [stderr]    Compiling auto_enums_core v0.5.10
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio v0.2.20
[INFO] [stderr]    Compiling auto_enums v0.5.10
[INFO] [stderr]    Compiling synattra v0.2.0
[INFO] [stderr]    Compiling aspect-weave v0.2.0
[INFO] [stderr]    Compiling aspect v0.2.0
[INFO] [stderr]    Compiling metered-macro v0.4.0
[INFO] [stderr]    Compiling hdrhistogram v7.1.0
[INFO] [stderr]    Compiling metered v0.4.0
[INFO] [stderr]    Compiling serde_prometheus v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 48.07s
[INFO] running `Command { std: "docker" "inspect" "6a5cf6bac8335be8aebadc492353673655e8f3e6ebfb91e305dfcd2507669ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a5cf6bac8335be8aebadc492353673655e8f3e6ebfb91e305dfcd2507669ad5", kill_on_drop: false }`
[INFO] [stdout] 6a5cf6bac8335be8aebadc492353673655e8f3e6ebfb91e305dfcd2507669ad5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e68fdb0e733450045a243ff08af101479d5c1c86251dbf59f56e199b41737a06
[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" "e68fdb0e733450045a243ff08af101479d5c1c86251dbf59f56e199b41737a06", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serde_prometheus-3eb977c5fa4f9969
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test label::tests::multi_struct ... ok
[INFO] [stdout] test label::tests::single_struct ... ok
[INFO] [stdout] test label::tests::multi_map ... ok
[INFO] [stdout] test label::tests::quoted_value ... ok
[INFO] [stdout] test tests::wrapped_registry ... ok
[INFO] [stdout] test label::tests::single_map ... ok
[INFO] [stdout] test label::tests::invalid_key ... ok
[INFO] [stdout] test tests::normal_registry ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_prometheus
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 158) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - (line 219) ... ok
[INFO] [stdout] test src/lib.rs - (line 53) ... ok
[INFO] [stdout] test src/lib.rs - (line 93) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e68fdb0e733450045a243ff08af101479d5c1c86251dbf59f56e199b41737a06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e68fdb0e733450045a243ff08af101479d5c1c86251dbf59f56e199b41737a06", kill_on_drop: false }`
[INFO] [stdout] e68fdb0e733450045a243ff08af101479d5c1c86251dbf59f56e199b41737a06