[INFO] updating cached repository MindFlavor/prometheus_exporter_base
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MindFlavor/prometheus_exporter_base
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MindFlavor/prometheus_exporter_base" "work/ex/beta-1.38-1/sources/1.37.0/gh/MindFlavor/prometheus_exporter_base"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/MindFlavor/prometheus_exporter_base'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MindFlavor/prometheus_exporter_base" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MindFlavor/prometheus_exporter_base"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MindFlavor/prometheus_exporter_base'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3e7bb9c93c2d1e23e4b04b4a1f61e1dffaf15b77
[INFO] sha for GitHub repo MindFlavor/prometheus_exporter_base: 3e7bb9c93c2d1e23e4b04b4a1f61e1dffaf15b77
[INFO] validating manifest of MindFlavor/prometheus_exporter_base on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of MindFlavor/prometheus_exporter_base on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing MindFlavor/prometheus_exporter_base
[INFO] finished frobbing MindFlavor/prometheus_exporter_base
[INFO] frobbed toml for MindFlavor/prometheus_exporter_base written to work/ex/beta-1.38-1/sources/1.37.0/gh/MindFlavor/prometheus_exporter_base/Cargo.toml
[INFO] started frobbing MindFlavor/prometheus_exporter_base
[INFO] finished frobbing MindFlavor/prometheus_exporter_base
[INFO] frobbed toml for MindFlavor/prometheus_exporter_base written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MindFlavor/prometheus_exporter_base/Cargo.toml
[INFO] crate MindFlavor/prometheus_exporter_base already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing MindFlavor/prometheus_exporter_base against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MindFlavor/prometheus_exporter_base:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 539cf54730fc04782e37360e1d5f7c8349a438142307376f6107caba3fcb4578
[INFO] running `"docker" "start" "-a" "539cf54730fc04782e37360e1d5f7c8349a438142307376f6107caba3fcb4578"`
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling sct v0.5.0
[INFO] [stderr]    Compiling webpki v0.19.1
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling string v0.2.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.14
[INFO] [stderr]    Compiling ct-logs v0.5.1
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling rustls v0.15.2
[INFO] [stderr]    Compiling webpki-roots v0.16.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling h2 v0.1.23
[INFO] [stderr]    Compiling tokio v0.1.21
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling tokio-rustls v0.9.3
[INFO] [stderr]    Compiling hyper v0.12.29
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling hyper-rustls v0.16.1
[INFO] [stderr]    Compiling prometheus_exporter_base v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:87:18
[INFO] [stderr]    |
[INFO] [stderr] 87 |         ) -> Box<Future<Item = String, Error = failure::Error> + Send + 'static>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = failure::Error> + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:115:18
[INFO] [stderr]     |
[INFO] [stderr] 115 |         ) -> Box<Future<Item = String, Error = failure::Error> + Send + 'static>
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = failure::Error> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `"docker" "inspect" "539cf54730fc04782e37360e1d5f7c8349a438142307376f6107caba3fcb4578"`
[INFO] running `"docker" "rm" "-f" "539cf54730fc04782e37360e1d5f7c8349a438142307376f6107caba3fcb4578"`
[INFO] [stdout] 539cf54730fc04782e37360e1d5f7c8349a438142307376f6107caba3fcb4578
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MindFlavor/prometheus_exporter_base:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 031090ce84144649204043d6952d433944701e3f9072dc88898b0518006d4e86
[INFO] running `"docker" "start" "-a" "031090ce84144649204043d6952d433944701e3f9072dc88898b0518006d4e86"`
[INFO] [stderr]    Compiling prometheus_exporter_base v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:87:18
[INFO] [stderr]    |
[INFO] [stderr] 87 |         ) -> Box<Future<Item = String, Error = failure::Error> + Send + 'static>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = failure::Error> + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:115:18
[INFO] [stderr]     |
[INFO] [stderr] 115 |         ) -> Box<Future<Item = String, Error = failure::Error> + Send + 'static>
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = failure::Error> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> examples/folder_size.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |         .author(crate_authors!("\n"))
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> examples/folder_size.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |         .author(crate_authors!("\n"))
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.97s
[INFO] running `"docker" "inspect" "031090ce84144649204043d6952d433944701e3f9072dc88898b0518006d4e86"`
[INFO] running `"docker" "rm" "-f" "031090ce84144649204043d6952d433944701e3f9072dc88898b0518006d4e86"`
[INFO] [stdout] 031090ce84144649204043d6952d433944701e3f9072dc88898b0518006d4e86
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MindFlavor/prometheus_exporter_base:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 2d90c8de66855c5e53bfe019ba211f14078d29e4f88a2ea2f26f5649a14b5cae
[INFO] running `"docker" "start" "-a" "2d90c8de66855c5e53bfe019ba211f14078d29e4f88a2ea2f26f5649a14b5cae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prometheus_exporter_base-957d7ca3343895eb
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test render_to_prometheus::tests::test_attributes ... ok
[INFO] [stdout] test render_to_prometheus::tests::test_header ... ok
[INFO] [stdout] test render_to_prometheus::tests::test_no_attributes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prometheus_exporter_base
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/render_to_prometheus.rs - render_to_prometheus::PrometheusCounter::render_counter (line 41) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2d90c8de66855c5e53bfe019ba211f14078d29e4f88a2ea2f26f5649a14b5cae"`
[INFO] running `"docker" "rm" "-f" "2d90c8de66855c5e53bfe019ba211f14078d29e4f88a2ea2f26f5649a14b5cae"`
[INFO] [stdout] 2d90c8de66855c5e53bfe019ba211f14078d29e4f88a2ea2f26f5649a14b5cae