[INFO] fetching crate async-listen 0.2.1...
[INFO] testing async-listen-0.2.1 against 1.54.0 for beta-1.55-2
[INFO] extracting crate async-listen 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate async-listen 0.2.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-listen 0.2.1
[INFO] finished tweaking crates.io crate async-listen 0.2.1
[INFO] tweaked toml for crates.io crate async-listen 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate async-listen 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] db266df66b7938b2992e733ebe0e06262fdbe6183fbbe0194ecd298dfaaca7da
[INFO] running `Command { std: "docker" "start" "-a" "db266df66b7938b2992e733ebe0e06262fdbe6183fbbe0194ecd298dfaaca7da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db266df66b7938b2992e733ebe0e06262fdbe6183fbbe0194ecd298dfaaca7da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db266df66b7938b2992e733ebe0e06262fdbe6183fbbe0194ecd298dfaaca7da", kill_on_drop: false }`
[INFO] [stdout] db266df66b7938b2992e733ebe0e06262fdbe6183fbbe0194ecd298dfaaca7da
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] 2580616840b333e6e924e9ef6c34062d7b66b4e18d9ff10f36c4fba0f00b8717
[INFO] running `Command { std: "docker" "start" "-a" "2580616840b333e6e924e9ef6c34062d7b66b4e18d9ff10f36c4fba0f00b8717", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling async-task v3.0.0
[INFO] [stderr]    Compiling scoped-tls-hkt v0.1.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling kv-log-macro v1.0.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling pin-project v0.4.22
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling piper v0.1.3
[INFO] [stderr]    Compiling smol v0.1.12
[INFO] [stderr]    Compiling async-std v1.6.1
[INFO] [stderr]    Compiling async-listen v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.85s
[INFO] running `Command { std: "docker" "inspect" "2580616840b333e6e924e9ef6c34062d7b66b4e18d9ff10f36c4fba0f00b8717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2580616840b333e6e924e9ef6c34062d7b66b4e18d9ff10f36c4fba0f00b8717", kill_on_drop: false }`
[INFO] [stdout] 2580616840b333e6e924e9ef6c34062d7b66b4e18d9ff10f36c4fba0f00b8717
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c5aadfddc7c587f737ca8afcc4b422786598870f6c76f2aa7c6b73432028ac3
[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" "2c5aadfddc7c587f737ca8afcc4b422786598870f6c76f2aa7c6b73432028ac3", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling async-listen v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.63s
[INFO] running `Command { std: "docker" "inspect" "2c5aadfddc7c587f737ca8afcc4b422786598870f6c76f2aa7c6b73432028ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c5aadfddc7c587f737ca8afcc4b422786598870f6c76f2aa7c6b73432028ac3", kill_on_drop: false }`
[INFO] [stdout] 2c5aadfddc7c587f737ca8afcc4b422786598870f6c76f2aa7c6b73432028ac3
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] 7e7e7828675d2379994bac07a4201ff6ab0cd50df90b295be938d523d9b45462
[INFO] running `Command { std: "docker" "start" "-a" "7e7e7828675d2379994bac07a4201ff6ab0cd50df90b295be938d523d9b45462", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_listen-694c2cf379a2f6a6)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/backpressure.rs (/opt/rustwide/target/debug/deps/backpressure-3b4905973c0ba6db)
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_backpressure ... ok
[INFO] [stdout] test test_change_limit ... ok
[INFO] [stdout] test test_apply_backpressure ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.15s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/log.rs (/opt/rustwide/target/debug/deps/log-b070752b9a388d51)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_hint ... ok
[INFO] [stdout] test test_log ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async-listen
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test src/byte_stream.rs - byte_stream::ByteStream::peer_addr (line 130) ... ignored
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::backpressure (line 116) ... ignored
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::backpressure_wrapper (line 279) ... ignored
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::backpressure_wrapper (line 284) ... ignored
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::backpressure_wrapper (line 290) ... ignored
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::handle_errors (line 83) ... ignored
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::log_warnings (line 26) ... ignored
[INFO] [stdout] test src/backpressure.rs - backpressure::new (line 306) - compile ... ok
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::backpressure (line 125) - compile ... ok
[INFO] [stdout] test src/error.rs - error::ErrorHint::default_link_base (line 171) - compile ... ok
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::apply_backpressure (line 188) - compile ... ok
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::backpressure_wrapper (line 251) - compile ... ok
[INFO] [stdout] test src/listen_ext.rs - listen_ext::ListenExt::log_warnings (line 36) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 28) - compile ... ok
[INFO] [stdout] test src/error.rs - error::ErrorHint (line 22) ... ok
[INFO] [stdout] test src/error.rs - error::ErrorHint (line 9) ... ok
[INFO] [stdout] test src/error.rs - error::error_hint (line 94) ... ok
[INFO] [stdout] test src/error.rs - error::ErrorHint::link_hash (line 145) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 7 ignored; 0 measured; 0 filtered out; finished in 2.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7e7e7828675d2379994bac07a4201ff6ab0cd50df90b295be938d523d9b45462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7e7828675d2379994bac07a4201ff6ab0cd50df90b295be938d523d9b45462", kill_on_drop: false }`
[INFO] [stdout] 7e7e7828675d2379994bac07a4201ff6ab0cd50df90b295be938d523d9b45462