[INFO] fetching crate tower-opentelemetry 0.1.0-beta.1...
[INFO] testing tower-opentelemetry-0.1.0-beta.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tower-opentelemetry 0.1.0-beta.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tower-opentelemetry 0.1.0-beta.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-opentelemetry 0.1.0-beta.1
[INFO] finished tweaking crates.io crate tower-opentelemetry 0.1.0-beta.1
[INFO] tweaked toml for crates.io crate tower-opentelemetry 0.1.0-beta.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 46d20a120196e4d91d4c8cc912f837da58e38081d755419e637ab1bf9def61ca
[INFO] running `Command { std: "docker" "start" "-a" "46d20a120196e4d91d4c8cc912f837da58e38081d755419e637ab1bf9def61ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46d20a120196e4d91d4c8cc912f837da58e38081d755419e637ab1bf9def61ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46d20a120196e4d91d4c8cc912f837da58e38081d755419e637ab1bf9def61ca", kill_on_drop: false }`
[INFO] [stdout] 46d20a120196e4d91d4c8cc912f837da58e38081d755419e637ab1bf9def61ca
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54fe6a47b986623a7fed7b31adf91ad61feafe12ca13097c97ab915d123a5dfa
[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" "54fe6a47b986623a7fed7b31adf91ad61feafe12ca13097c97ab915d123a5dfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling sysinfo v0.20.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling opentelemetry v0.16.0
[INFO] [stderr]    Compiling opentelemetry-semantic-conventions v0.8.0
[INFO] [stderr]    Compiling tower-opentelemetry v0.1.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.83s
[INFO] running `Command { std: "docker" "inspect" "54fe6a47b986623a7fed7b31adf91ad61feafe12ca13097c97ab915d123a5dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54fe6a47b986623a7fed7b31adf91ad61feafe12ca13097c97ab915d123a5dfa", kill_on_drop: false }`
[INFO] [stdout] 54fe6a47b986623a7fed7b31adf91ad61feafe12ca13097c97ab915d123a5dfa
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b61de0c78255364ca66c8357ce56ab275d4b16da3885bfb439b9199543e56f7
[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" "8b61de0c78255364ca66c8357ce56ab275d4b16da3885bfb439b9199543e56f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling tower-opentelemetry v0.1.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "8b61de0c78255364ca66c8357ce56ab275d4b16da3885bfb439b9199543e56f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b61de0c78255364ca66c8357ce56ab275d4b16da3885bfb439b9199543e56f7", kill_on_drop: false }`
[INFO] [stdout] 8b61de0c78255364ca66c8357ce56ab275d4b16da3885bfb439b9199543e56f7
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", 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] 0be017200d6e4acfa2235f316c377c2a2cd5dbb9dff77ca5fa844c5b495e700d
[INFO] running `Command { std: "docker" "start" "-a" "0be017200d6e4acfa2235f316c377c2a2cd5dbb9dff77ca5fa844c5b495e700d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tower_opentelemetry-4b1b32fc301fbc1a)
[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] [stderr]    Doc-tests tower-opentelemetry
[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" "0be017200d6e4acfa2235f316c377c2a2cd5dbb9dff77ca5fa844c5b495e700d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be017200d6e4acfa2235f316c377c2a2cd5dbb9dff77ca5fa844c5b495e700d", kill_on_drop: false }`
[INFO] [stdout] 0be017200d6e4acfa2235f316c377c2a2cd5dbb9dff77ca5fa844c5b495e700d