[INFO] fetching crate pharos 0.5.2...
[INFO] testing pharos-0.5.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate pharos 0.5.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pharos 0.5.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pharos 0.5.2
[INFO] finished tweaking crates.io crate pharos 0.5.2
[INFO] tweaked toml for crates.io crate pharos 0.5.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate pharos 0.5.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7d54812bbf269ab13b9f7b7b0cb9a949999b4cb69ab0f614a0a8107aeead441
[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" "c7d54812bbf269ab13b9f7b7b0cb9a949999b4cb69ab0f614a0a8107aeead441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7d54812bbf269ab13b9f7b7b0cb9a949999b4cb69ab0f614a0a8107aeead441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7d54812bbf269ab13b9f7b7b0cb9a949999b4cb69ab0f614a0a8107aeead441", kill_on_drop: false }`
[INFO] [stdout] c7d54812bbf269ab13b9f7b7b0cb9a949999b4cb69ab0f614a0a8107aeead441
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "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] e48fcbe7cfcb6068031c337e5b41428cc7ac8c214afdb24b17922b9553f96c97
[INFO] running `Command { std: "docker" "start" "-a" "e48fcbe7cfcb6068031c337e5b41428cc7ac8c214afdb24b17922b9553f96c97", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling pharos v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.99s
[INFO] running `Command { std: "docker" "inspect" "e48fcbe7cfcb6068031c337e5b41428cc7ac8c214afdb24b17922b9553f96c97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e48fcbe7cfcb6068031c337e5b41428cc7ac8c214afdb24b17922b9553f96c97", kill_on_drop: false }`
[INFO] [stdout] e48fcbe7cfcb6068031c337e5b41428cc7ac8c214afdb24b17922b9553f96c97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17d232fc54ac5079eaa1d8e643e7378d2c29fd873b658f4a9489ccfb44322b79
[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" "17d232fc54ac5079eaa1d8e643e7378d2c29fd873b658f4a9489ccfb44322b79", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.24
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling async_executors v0.4.1
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling polling v2.0.3
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-io v1.4.1
[INFO] [stderr]    Compiling async-process v1.1.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling async-std v1.9.0
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]    Compiling js-sys v0.3.51
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.24
[INFO] [stderr]    Compiling wasm-bindgen-test v0.3.24
[INFO] [stderr]    Compiling pharos v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 28.60s
[INFO] running `Command { std: "docker" "inspect" "17d232fc54ac5079eaa1d8e643e7378d2c29fd873b658f4a9489ccfb44322b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17d232fc54ac5079eaa1d8e643e7378d2c29fd873b658f4a9489ccfb44322b79", kill_on_drop: false }`
[INFO] [stdout] 17d232fc54ac5079eaa1d8e643e7378d2c29fd873b658f4a9489ccfb44322b79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a5cc34c09a0ae27758f6c38f2010cce0aeb4524f0d7b2bdfb9b7b8bc87fb1d1e
[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" "a5cc34c09a0ae27758f6c38f2010cce0aeb4524f0d7b2bdfb9b7b8bc87fb1d1e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pharos-adfa05bf198891ab)
[INFO] [stderr]    Doc-tests pharos
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test events::tests::debug ... ok
[INFO] [stdout] test pharos::tests::debug ... ok
[INFO] [stdout] test filter::tests::debug ... ok
[INFO] [stdout] test pharos::tests::new ... ok
[INFO] [stdout] test pharos::tests::observe_refuse_zero ... ok
[INFO] [stdout] test pharos::tests::poll_flush_drop ... ok
[INFO] [stdout] test pharos::tests::observe_after_close ... ok
[INFO] [stdout] test pharos::tests::poll_ready_closed ... ok
[INFO] [stdout] test pharos::tests::poll_ready_drop ... ok
[INFO] [stdout] test pharos::tests::reuse ... ok
[INFO] [stdout] test pharos::tests::storage_len ... ok
[INFO] [stdout] test pharos::tests::start_send_arrive ... ok
[INFO] [stdout] test pharos::tests::poll_ready_pending ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/filter.rs - filter::Filter (line 11) ... ok
[INFO] [stdout] test src/observable.rs - observable::Observable (line 8) ... ok
[INFO] [stdout] test src/observable.rs - observable::ObserveConfig (line 165) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a5cc34c09a0ae27758f6c38f2010cce0aeb4524f0d7b2bdfb9b7b8bc87fb1d1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5cc34c09a0ae27758f6c38f2010cce0aeb4524f0d7b2bdfb9b7b8bc87fb1d1e", kill_on_drop: false }`
[INFO] [stdout] a5cc34c09a0ae27758f6c38f2010cce0aeb4524f0d7b2bdfb9b7b8bc87fb1d1e