[INFO] fetching crate async-io-helper 0.1.0...
[INFO] testing async-io-helper-0.1.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate async-io-helper 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate async-io-helper 0.1.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-io-helper 0.1.0
[INFO] finished tweaking crates.io crate async-io-helper 0.1.0
[INFO] tweaked toml for crates.io crate async-io-helper 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06f21daf28028e255665cf02c28387ea7f4b98021ae4d252875366dc57911e71
[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" "06f21daf28028e255665cf02c28387ea7f4b98021ae4d252875366dc57911e71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06f21daf28028e255665cf02c28387ea7f4b98021ae4d252875366dc57911e71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f21daf28028e255665cf02c28387ea7f4b98021ae4d252875366dc57911e71", kill_on_drop: false }`
[INFO] [stdout] 06f21daf28028e255665cf02c28387ea7f4b98021ae4d252875366dc57911e71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d33c950cfadb35cc3c1cbd60b264110bc4cd1e7f16eca86dacd2ac75c1596c6
[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" "5d33c950cfadb35cc3c1cbd60b264110bc4cd1e7f16eca86dacd2ac75c1596c6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling async-io-helper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.52s
[INFO] running `Command { std: "docker" "inspect" "5d33c950cfadb35cc3c1cbd60b264110bc4cd1e7f16eca86dacd2ac75c1596c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d33c950cfadb35cc3c1cbd60b264110bc4cd1e7f16eca86dacd2ac75c1596c6", kill_on_drop: false }`
[INFO] [stdout] 5d33c950cfadb35cc3c1cbd60b264110bc4cd1e7f16eca86dacd2ac75c1596c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0661b987358ca503ada746578bacb58d298ef8c6f927b15c5f156ed604b80dd9
[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" "0661b987358ca503ada746578bacb58d298ef8c6f927b15c5f156ed604b80dd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling tracing-subscriber v0.2.18
[INFO] [stderr]    Compiling async-io-helper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 38.64s
[INFO] running `Command { std: "docker" "inspect" "0661b987358ca503ada746578bacb58d298ef8c6f927b15c5f156ed604b80dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0661b987358ca503ada746578bacb58d298ef8c6f927b15c5f156ed604b80dd9", kill_on_drop: false }`
[INFO] [stdout] 0661b987358ca503ada746578bacb58d298ef8c6f927b15c5f156ed604b80dd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7221df85109415c6d38702ad770ab34695cc818a1adca40d1f2d6a4bb532d13
[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" "d7221df85109415c6d38702ad770ab34695cc818a1adca40d1f2d6a4bb532d13", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_io_helper-289158aa1d153d4e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_client_and_server_io_should_work ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async-io-helper
[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" "d7221df85109415c6d38702ad770ab34695cc818a1adca40d1f2d6a4bb532d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7221df85109415c6d38702ad770ab34695cc818a1adca40d1f2d6a4bb532d13", kill_on_drop: false }`
[INFO] [stdout] d7221df85109415c6d38702ad770ab34695cc818a1adca40d1f2d6a4bb532d13