[INFO] fetching crate hedwig 2.1.0...
[INFO] testing hedwig-2.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate hedwig 2.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate hedwig 2.1.0 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 hedwig 2.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hedwig 2.1.0
[INFO] tweaked toml for crates.io crate hedwig 2.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate hedwig 2.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 22c6c148994b4cbad823b14c59127e508a98f48d8647866b51b00e7657d59063
[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" "22c6c148994b4cbad823b14c59127e508a98f48d8647866b51b00e7657d59063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22c6c148994b4cbad823b14c59127e508a98f48d8647866b51b00e7657d59063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22c6c148994b4cbad823b14c59127e508a98f48d8647866b51b00e7657d59063", kill_on_drop: false }`
[INFO] [stdout] 22c6c148994b4cbad823b14c59127e508a98f48d8647866b51b00e7657d59063
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] fa852eeba07e7e34f9187e8f99b488bacd5768db7dd7cc4067998b4daa2c72ef
[INFO] running `Command { std: "docker" "start" "-a" "fa852eeba07e7e34f9187e8f99b488bacd5768db7dd7cc4067998b4daa2c72ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling pin-project-internal v0.4.26
[INFO] [stderr]    Compiling futures-task v0.3.6
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling thiserror v1.0.21
[INFO] [stderr]    Compiling pin-project v0.4.26
[INFO] [stderr]    Compiling futures-util v0.3.6
[INFO] [stderr]    Compiling hedwig v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.71s
[INFO] running `Command { std: "docker" "inspect" "fa852eeba07e7e34f9187e8f99b488bacd5768db7dd7cc4067998b4daa2c72ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa852eeba07e7e34f9187e8f99b488bacd5768db7dd7cc4067998b4daa2c72ef", kill_on_drop: false }`
[INFO] [stdout] fa852eeba07e7e34f9187e8f99b488bacd5768db7dd7cc4067998b4daa2c72ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] d59092ca6b3697c038218b95d4f884e636cdb3147f0791781c0535e3a49ec769
[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" "d59092ca6b3697c038218b95d4f884e636cdb3147f0791781c0535e3a49ec769", kill_on_drop: false }`
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling futures-channel v0.3.6
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.6
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling hyper v0.13.8
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling hedwig v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 36.15s
[INFO] running `Command { std: "docker" "inspect" "d59092ca6b3697c038218b95d4f884e636cdb3147f0791781c0535e3a49ec769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d59092ca6b3697c038218b95d4f884e636cdb3147f0791781c0535e3a49ec769", kill_on_drop: false }`
[INFO] [stdout] d59092ca6b3697c038218b95d4f884e636cdb3147f0791781c0535e3a49ec769
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ae5b3a5266ded1e07eb3b86066c8fdc9fa1e0c0806fedd629ecff28ef86a9dad
[INFO] running `Command { std: "docker" "start" "-a" "ae5b3a5266ded1e07eb3b86066c8fdc9fa1e0c0806fedd629ecff28ef86a9dad", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hedwig-d60b1b4d3599ca1b
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::publish_empty_batch ... ok
[INFO] [stdout] test tests::publish_stream_is_send ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hedwig
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/publishers/null.rs - publishers::null::NullPublisher (line 11) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/publishers/mock.rs - publishers::mock::MockPublisher (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ae5b3a5266ded1e07eb3b86066c8fdc9fa1e0c0806fedd629ecff28ef86a9dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae5b3a5266ded1e07eb3b86066c8fdc9fa1e0c0806fedd629ecff28ef86a9dad", kill_on_drop: false }`
[INFO] [stdout] ae5b3a5266ded1e07eb3b86066c8fdc9fa1e0c0806fedd629ecff28ef86a9dad