[INFO] fetching crate thruster-async-await 0.9.0-alpha.2...
[INFO] testing thruster-async-await-0.9.0-alpha.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate thruster-async-await 0.9.0-alpha.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate thruster-async-await 0.9.0-alpha.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate thruster-async-await 0.9.0-alpha.2
[INFO] finished tweaking crates.io crate thruster-async-await 0.9.0-alpha.2
[INFO] tweaked toml for crates.io crate thruster-async-await 0.9.0-alpha.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] fb5c48c0cdaaa32c6634ee95a972b5f22b6f658f28e7b31a32fd4fc3e59a7ded
[INFO] running `Command { std: "docker" "start" "-a" "fb5c48c0cdaaa32c6634ee95a972b5f22b6f658f28e7b31a32fd4fc3e59a7ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb5c48c0cdaaa32c6634ee95a972b5f22b6f658f28e7b31a32fd4fc3e59a7ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb5c48c0cdaaa32c6634ee95a972b5f22b6f658f28e7b31a32fd4fc3e59a7ded", kill_on_drop: false }`
[INFO] [stdout] fb5c48c0cdaaa32c6634ee95a972b5f22b6f658f28e7b31a32fd4fc3e59a7ded
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc1c2a51344637246eadee0b6f5f247752eca64c1fcff1a1604af5e744d50f96
[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" "dc1c2a51344637246eadee0b6f5f247752eca64c1fcff1a1604af5e744d50f96", kill_on_drop: false }`
[INFO] [stderr]    Compiling thruster-async-await v0.9.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "dc1c2a51344637246eadee0b6f5f247752eca64c1fcff1a1604af5e744d50f96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc1c2a51344637246eadee0b6f5f247752eca64c1fcff1a1604af5e744d50f96", kill_on_drop: false }`
[INFO] [stdout] dc1c2a51344637246eadee0b6f5f247752eca64c1fcff1a1604af5e744d50f96
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45cf1f02be64f995355106e3ce838bb0826d63ec7966b1c90063040e9ef4ed04
[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" "45cf1f02be64f995355106e3ce838bb0826d63ec7966b1c90063040e9ef4ed04", kill_on_drop: false }`
[INFO] [stderr]    Compiling thruster-async-await v0.9.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "45cf1f02be64f995355106e3ce838bb0826d63ec7966b1c90063040e9ef4ed04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45cf1f02be64f995355106e3ce838bb0826d63ec7966b1c90063040e9ef4ed04", kill_on_drop: false }`
[INFO] [stdout] 45cf1f02be64f995355106e3ce838bb0826d63ec7966b1c90063040e9ef4ed04
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8559837d1667d19720ee488b8605eb528af2aa2efae619ceaecc1d3b46eb9b3e
[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" "8559837d1667d19720ee488b8605eb528af2aa2efae619ceaecc1d3b46eb9b3e", 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]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/thruster_async_await-0d3acedb4561a4a8
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests thruster-async-await
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8559837d1667d19720ee488b8605eb528af2aa2efae619ceaecc1d3b46eb9b3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8559837d1667d19720ee488b8605eb528af2aa2efae619ceaecc1d3b46eb9b3e", kill_on_drop: false }`
[INFO] [stdout] 8559837d1667d19720ee488b8605eb528af2aa2efae619ceaecc1d3b46eb9b3e