[INFO] fetching crate async-spawn-attrs 0.0.0...
[INFO] testing async-spawn-attrs-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate async-spawn-attrs 0.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate async-spawn-attrs 0.0.0 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 async-spawn-attrs 0.0.0
[INFO] finished tweaking crates.io crate async-spawn-attrs 0.0.0
[INFO] tweaked toml for crates.io crate async-spawn-attrs 0.0.0 written to /workspace/builds/worker-14/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] [stderr]     Blocking waiting for file lock on package cache
[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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae08cb8f39e0dbe7f0933fcc41bd223cd75a46f908cfdabc8493a2f619ac3dc9
[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" "ae08cb8f39e0dbe7f0933fcc41bd223cd75a46f908cfdabc8493a2f619ac3dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae08cb8f39e0dbe7f0933fcc41bd223cd75a46f908cfdabc8493a2f619ac3dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae08cb8f39e0dbe7f0933fcc41bd223cd75a46f908cfdabc8493a2f619ac3dc9", kill_on_drop: false }`
[INFO] [stdout] ae08cb8f39e0dbe7f0933fcc41bd223cd75a46f908cfdabc8493a2f619ac3dc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "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] 3e9e4c1db5a810771f78c9e45c8f60036996f4012a13ea4959abd784be2cae20
[INFO] running `Command { std: "docker" "start" "-a" "3e9e4c1db5a810771f78c9e45c8f60036996f4012a13ea4959abd784be2cae20", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-spawn-attrs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "3e9e4c1db5a810771f78c9e45c8f60036996f4012a13ea4959abd784be2cae20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e9e4c1db5a810771f78c9e45c8f60036996f4012a13ea4959abd784be2cae20", kill_on_drop: false }`
[INFO] [stdout] 3e9e4c1db5a810771f78c9e45c8f60036996f4012a13ea4959abd784be2cae20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce995005f98e08a8c9a3c61fa8c0614056e8fe17ca1cafae76a80e1897f71c3a
[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" "ce995005f98e08a8c9a3c61fa8c0614056e8fe17ca1cafae76a80e1897f71c3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-spawn-attrs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "ce995005f98e08a8c9a3c61fa8c0614056e8fe17ca1cafae76a80e1897f71c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce995005f98e08a8c9a3c61fa8c0614056e8fe17ca1cafae76a80e1897f71c3a", kill_on_drop: false }`
[INFO] [stdout] ce995005f98e08a8c9a3c61fa8c0614056e8fe17ca1cafae76a80e1897f71c3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68812b1a356bc406d745e78a0d65f53b150b4be583e27330f88701908e5ed43e
[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" "68812b1a356bc406d745e78a0d65f53b150b4be583e27330f88701908e5ed43e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/async_spawn_attrs-8aaeb5ecdc4e9b24
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async-spawn-attrs
[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" "68812b1a356bc406d745e78a0d65f53b150b4be583e27330f88701908e5ed43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68812b1a356bc406d745e78a0d65f53b150b4be583e27330f88701908e5ed43e", kill_on_drop: false }`
[INFO] [stdout] 68812b1a356bc406d745e78a0d65f53b150b4be583e27330f88701908e5ed43e