[INFO] fetching crate mqttwrk 0.1.0...
[INFO] testing mqttwrk-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate mqttwrk 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mqttwrk 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mqttwrk 0.1.0
[INFO] finished tweaking crates.io crate mqttwrk 0.1.0
[INFO] tweaked toml for crates.io crate mqttwrk 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate mqttwrk 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-rustls v0.13.0
[INFO] [stderr]   Downloaded webpki v0.21.2
[INFO] [stderr]   Downloaded argh v0.1.3
[INFO] [stderr]   Downloaded argh_derive v0.1.1
[INFO] [stderr]   Downloaded argh_shared v0.1.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.16
[INFO] [stderr]   Downloaded bumpalo v3.2.1
[INFO] [stderr]   Downloaded rumq-core v0.1.0-alpha.10
[INFO] [stderr]   Downloaded rumq-client v0.1.0-alpha.10
[INFO] [stderr]   Downloaded quote v1.0.4
[INFO] [stderr]   Downloaded ring v0.16.13
[INFO] [stderr]   Downloaded thiserror v1.0.16
[INFO] [stderr]   Downloaded async-trait v0.1.30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] f90c8dc202d78d8a17fa6cc33a8f6e69c6fbb3532dcb041d238d7487ddaedb8d
[INFO] running `Command { std: "docker" "start" "-a" "f90c8dc202d78d8a17fa6cc33a8f6e69c6fbb3532dcb041d238d7487ddaedb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f90c8dc202d78d8a17fa6cc33a8f6e69c6fbb3532dcb041d238d7487ddaedb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f90c8dc202d78d8a17fa6cc33a8f6e69c6fbb3532dcb041d238d7487ddaedb8d", kill_on_drop: false }`
[INFO] [stdout] f90c8dc202d78d8a17fa6cc33a8f6e69c6fbb3532dcb041d238d7487ddaedb8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17dfb454b4d14e276ae913915c7b84a35a47c2b776188ad5840977e18ab61954
[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" "17dfb454b4d14e276ae913915c7b84a35a47c2b776188ad5840977e18ab61954", kill_on_drop: false }`
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]    Compiling ring v0.16.13
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]    Compiling async-stream v0.2.1
[INFO] [stderr]    Compiling tokio v0.2.20
[INFO] [stderr]    Compiling argh v0.1.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling webpki v0.21.2
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-rustls v0.13.0
[INFO] [stderr]    Compiling rumq-core v0.1.0-alpha.10
[INFO] [stderr]    Compiling rumq-client v0.1.0-alpha.10
[INFO] [stderr]    Compiling mqttwrk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.02s
[INFO] running `Command { std: "docker" "inspect" "17dfb454b4d14e276ae913915c7b84a35a47c2b776188ad5840977e18ab61954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17dfb454b4d14e276ae913915c7b84a35a47c2b776188ad5840977e18ab61954", kill_on_drop: false }`
[INFO] [stdout] 17dfb454b4d14e276ae913915c7b84a35a47c2b776188ad5840977e18ab61954
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7ad8c8e22bc6620d04097cfc31396807ef550f0db2322f9a778dcbb6b616026
[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" "e7ad8c8e22bc6620d04097cfc31396807ef550f0db2322f9a778dcbb6b616026", 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]    Compiling mqttwrk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "e7ad8c8e22bc6620d04097cfc31396807ef550f0db2322f9a778dcbb6b616026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ad8c8e22bc6620d04097cfc31396807ef550f0db2322f9a778dcbb6b616026", kill_on_drop: false }`
[INFO] [stdout] e7ad8c8e22bc6620d04097cfc31396807ef550f0db2322f9a778dcbb6b616026
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db8bbdc2b3daf2e30b38f7bd586a3997eb03febfbbe161da516f7bd46d3b0cc1
[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" "db8bbdc2b3daf2e30b38f7bd586a3997eb03febfbbe161da516f7bd46d3b0cc1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mqttwrk-9dc96cac676715b6
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db8bbdc2b3daf2e30b38f7bd586a3997eb03febfbbe161da516f7bd46d3b0cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db8bbdc2b3daf2e30b38f7bd586a3997eb03febfbbe161da516f7bd46d3b0cc1", kill_on_drop: false }`
[INFO] [stdout] db8bbdc2b3daf2e30b38f7bd586a3997eb03febfbbe161da516f7bd46d3b0cc1