[INFO] fetching crate hedwig 4.1.0...
[INFO] testing hedwig-4.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate hedwig 4.1.0 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate hedwig 4.1.0 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 hedwig 4.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hedwig 4.1.0
[INFO] tweaked toml for crates.io crate hedwig 4.1.0 written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate crates.io crate hedwig 4.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded json-pointer v0.3.4
[INFO] [stderr]   Downloaded jsonway v2.0.0
[INFO] [stderr]   Downloaded uritemplate-next v0.2.0
[INFO] [stderr]   Downloaded async-trait v0.1.48
[INFO] [stderr]   Downloaded security-framework v2.1.2
[INFO] [stderr]   Downloaded valico v3.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] 4cd14da048fac7396878ed4f926c231be3a7a3b89d4e380b688fcb1f913a665f
[INFO] running `Command { std: "docker" "start" "-a" "4cd14da048fac7396878ed4f926c231be3a7a3b89d4e380b688fcb1f913a665f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cd14da048fac7396878ed4f926c231be3a7a3b89d4e380b688fcb1f913a665f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd14da048fac7396878ed4f926c231be3a7a3b89d4e380b688fcb1f913a665f", kill_on_drop: false }`
[INFO] [stdout] 4cd14da048fac7396878ed4f926c231be3a7a3b89d4e380b688fcb1f913a665f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] [stdout] 1229d94b1701a7211dc8273d75a88a9bfb4f855c0afa0f7401962cfacf3dc183
[INFO] running `Command { std: "docker" "start" "-a" "1229d94b1701a7211dc8273d75a88a9bfb4f855c0afa0f7401962cfacf3dc183", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling futures-sink v0.3.13
[INFO] [stderr]    Compiling futures-core v0.3.13
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling tinyvec v1.1.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling idna v0.2.2
[INFO] [stderr]    Compiling url v2.2.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling pin-project v1.0.5
[INFO] [stderr]    Compiling hedwig v4.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.38s
[INFO] running `Command { std: "docker" "inspect" "1229d94b1701a7211dc8273d75a88a9bfb4f855c0afa0f7401962cfacf3dc183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1229d94b1701a7211dc8273d75a88a9bfb4f855c0afa0f7401962cfacf3dc183", kill_on_drop: false }`
[INFO] [stdout] 1229d94b1701a7211dc8273d75a88a9bfb4f855c0afa0f7401962cfacf3dc183
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] c426ee39a2041228ea5bd3c78bdea6646aa73306005e45b356bfe2cd4d1e261a
[INFO] running `Command { std: "docker" "start" "-a" "c426ee39a2041228ea5bd3c78bdea6646aa73306005e45b356bfe2cd4d1e261a", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling tokio v1.3.0
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling futures-channel v0.3.13
[INFO] [stderr]    Compiling mio v0.7.10
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling http v0.2.3
[INFO] [stderr]    Compiling tracing v0.1.25
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling http-body v0.4.0
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling hyper v0.14.4
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling hedwig v4.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.74s
[INFO] running `Command { std: "docker" "inspect" "c426ee39a2041228ea5bd3c78bdea6646aa73306005e45b356bfe2cd4d1e261a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c426ee39a2041228ea5bd3c78bdea6646aa73306005e45b356bfe2cd4d1e261a", kill_on_drop: false }`
[INFO] [stdout] c426ee39a2041228ea5bd3c78bdea6646aa73306005e45b356bfe2cd4d1e261a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] 3b54c155e31d0e6c9f2f9e3822fadbc1ad111a3748b675d3be2351c78f37e79e
[INFO] running `Command { std: "docker" "start" "-a" "3b54c155e31d0e6c9f2f9e3822fadbc1ad111a3748b675d3be2351c78f37e79e", 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 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hedwig-698c9b27dbcecf9a)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test publish::sink::test::publisher_sink::batch_size_zero ... ok
[INFO] [stdout] test publish::sink::test::publisher_sink::batching_batches ... ok
[INFO] [stdout] test publish::sink::test::publisher_sink::close_flushes_batch ... ok
[INFO] [stdout] test publish::sink::test::publisher_sink::flush_incomplete_batch ... ok
[INFO] [stdout] test publish::sink::test::validator_sink::methods_delegated ... ok
[INFO] [stdout] test publish::sink::test::publisher_sink::flushing_error_retry ... ok
[INFO] [stdout] test publish::sink::test::publisher_sink::partial_flushing_check ... ok
[INFO] [stdout] test tests::publish_stream_is_send ... ok
[INFO] [stdout] test tests::publish_empty_batch ... ok
[INFO] [stdout] test publish::sink::test::publisher_sink::panic_at_buffer_full_without_ready_check - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hedwig
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/publish/publishers/null.rs - publish::publishers::null::NullPublisher (line 11) ... ok
[INFO] [stdout] test src/publish/publishers/mock.rs - publish::publishers::mock::MockPublisher (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3b54c155e31d0e6c9f2f9e3822fadbc1ad111a3748b675d3be2351c78f37e79e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b54c155e31d0e6c9f2f9e3822fadbc1ad111a3748b675d3be2351c78f37e79e", kill_on_drop: false }`
[INFO] [stdout] 3b54c155e31d0e6c9f2f9e3822fadbc1ad111a3748b675d3be2351c78f37e79e