[INFO] crate metrics-exporter-http-async_std 0.1.0 is already in cache
[INFO] testing metrics-exporter-http-async_std-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate metrics-exporter-http-async_std 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate metrics-exporter-http-async_std 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-exporter-http-async_std 0.1.0
[INFO] finished tweaking crates.io crate metrics-exporter-http-async_std 0.1.0
[INFO] tweaked toml for crates.io crate metrics-exporter-http-async_std 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate metrics-exporter-http-async_std 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce4f90e9eb181a90c851229c87cd757696c79bac08ce93d445b517513f807481
[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" "ce4f90e9eb181a90c851229c87cd757696c79bac08ce93d445b517513f807481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce4f90e9eb181a90c851229c87cd757696c79bac08ce93d445b517513f807481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce4f90e9eb181a90c851229c87cd757696c79bac08ce93d445b517513f807481", kill_on_drop: false }`
[INFO] [stdout] ce4f90e9eb181a90c851229c87cd757696c79bac08ce93d445b517513f807481
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--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] aa658d9032e276a24e9bd7715173011c05c3326151d07a62cb67adc20c4675e3
[INFO] running `Command { std: "docker" "start" "-a" "aa658d9032e276a24e9bd7715173011c05c3326151d07a62cb67adc20c4675e3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling metrics-core v0.5.2
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling async-task v1.3.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling kv-log-macro v1.0.5
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling async-std v1.5.0
[INFO] [stderr]    Compiling metrics-exporter-http-async_std v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.16s
[INFO] running `Command { std: "docker" "inspect" "aa658d9032e276a24e9bd7715173011c05c3326151d07a62cb67adc20c4675e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa658d9032e276a24e9bd7715173011c05c3326151d07a62cb67adc20c4675e3", kill_on_drop: false }`
[INFO] [stdout] aa658d9032e276a24e9bd7715173011c05c3326151d07a62cb67adc20c4675e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81dfd479ee7acab51a48fd11157439008757b2175a9e428c0211966316af4b76
[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" "81dfd479ee7acab51a48fd11157439008757b2175a9e428c0211966316af4b76", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling metrics v0.12.1
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling quanta v0.3.1
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling im v12.3.4
[INFO] [stderr]    Compiling hdrhistogram v6.3.4
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling sized-chunks v0.1.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.16
[INFO] [stderr]    Compiling metrics-util v0.3.1
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling metrics-observer-json v0.1.1
[INFO] [stderr]    Compiling metrics-observer-prometheus v0.1.3
[INFO] [stderr]    Compiling serde_yaml v0.8.12
[INFO] [stderr]    Compiling metrics-observer-yaml v0.1.1
[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 metrics-exporter-log v0.4.0
[INFO] [stderr]    Compiling h2 v0.2.5
[INFO] [stderr]    Compiling hyper v0.13.5
[INFO] [stderr]    Compiling metrics-exporter-http v0.3.0
[INFO] [stderr]    Compiling metrics-runtime v0.13.0
[INFO] [stderr]    Compiling metrics-exporter-http-async_std v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `metrics_exporter_async_std`
[INFO] [stdout]  --> examples/basic.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use metrics_exporter_async_std::HttpExporter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ use of undeclared type or module `metrics_exporter_async_std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metrics-exporter-http-async_std`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "81dfd479ee7acab51a48fd11157439008757b2175a9e428c0211966316af4b76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81dfd479ee7acab51a48fd11157439008757b2175a9e428c0211966316af4b76", kill_on_drop: false }`
[INFO] [stdout] 81dfd479ee7acab51a48fd11157439008757b2175a9e428c0211966316af4b76