[INFO] fetching crate metrics_cloudwatch 0.14.1...
[INFO] testing metrics_cloudwatch-0.14.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate metrics_cloudwatch 0.14.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate metrics_cloudwatch 0.14.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics_cloudwatch 0.14.1
[INFO] finished tweaking crates.io crate metrics_cloudwatch 0.14.1
[INFO] tweaked toml for crates.io crate metrics_cloudwatch 0.14.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusty-fork v0.3.0
[INFO] [stderr]   Downloaded rand_xorshift v0.3.0
[INFO] [stderr]   Downloaded metrics-macros v0.4.1
[INFO] [stderr]   Downloaded t1ha v0.1.0
[INFO] [stderr]   Downloaded rusoto_cloudwatch v0.47.0
[INFO] [stderr]   Downloaded metrics v0.16.0
[INFO] [stderr]   Downloaded proptest v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db44e77cac2bb78b4101c5973b3e5c19623923242f6bbb13534f10de7f23867f
[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" "db44e77cac2bb78b4101c5973b3e5c19623923242f6bbb13534f10de7f23867f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db44e77cac2bb78b4101c5973b3e5c19623923242f6bbb13534f10de7f23867f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db44e77cac2bb78b4101c5973b3e5c19623923242f6bbb13534f10de7f23867f", kill_on_drop: false }`
[INFO] [stdout] db44e77cac2bb78b4101c5973b3e5c19623923242f6bbb13534f10de7f23867f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25f21f71cde20f4650bb98bcbce3c753c7752e565bb6d72898b5d4b77f161b7d
[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" "25f21f71cde20f4650bb98bcbce3c753c7752e565bb6d72898b5d4b77f161b7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling metrics v0.16.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling t1ha v0.1.0
[INFO] [stderr]    Compiling ordered-float v2.10.0
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling rusoto_core v0.47.0
[INFO] [stderr]    Compiling md-5 v0.9.1
[INFO] [stderr]    Compiling metrics-macros v0.4.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.3.11
[INFO] [stderr]    Compiling hyper v0.14.17
[INFO] [stderr]    Compiling rusoto_credential v0.47.0
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling rusoto_signature v0.47.0
[INFO] [stderr]    Compiling rusoto_cloudwatch v0.47.0
[INFO] [stderr]    Compiling metrics_cloudwatch v0.14.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `thread_rng` in crate `rand`
[INFO] [stdout]    --> src/collector.rs:320:40
[INFO] [stdout]     |
[INFO] [stdout] 320 |     let rng = SmallRng::from_rng(rand::thread_rng()).unwrap();
[INFO] [stdout]     |                                        ^^^^^^^^^^ not found in `rand`
[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 E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metrics_cloudwatch` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "25f21f71cde20f4650bb98bcbce3c753c7752e565bb6d72898b5d4b77f161b7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25f21f71cde20f4650bb98bcbce3c753c7752e565bb6d72898b5d4b77f161b7d", kill_on_drop: false }`
[INFO] [stdout] 25f21f71cde20f4650bb98bcbce3c753c7752e565bb6d72898b5d4b77f161b7d