[INFO] cloning repository https://github.com/Frando/hypercore-protocol-rust-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Frando/hypercore-protocol-rust-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrando%2Fhypercore-protocol-rust-experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrando%2Fhypercore-protocol-rust-experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3186877a888c75fc99cee69588cc313fda9f5db5
[INFO] testing Frando/hypercore-protocol-rust-experiments against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrando%2Fhypercore-protocol-rust-experiments" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Frando/hypercore-protocol-rust-experiments 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 git repo https://github.com/Frando/hypercore-protocol-rust-experiments
[INFO] finished tweaking git repo https://github.com/Frando/hypercore-protocol-rust-experiments
[INFO] tweaked toml for git repo https://github.com/Frando/hypercore-protocol-rust-experiments written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/datrs/hypercore`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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" "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] 6b3044809d83ae824df4c6f2c3cff09ac53b89ab3425ce17cf2451737cca563c
[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" "6b3044809d83ae824df4c6f2c3cff09ac53b89ab3425ce17cf2451737cca563c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b3044809d83ae824df4c6f2c3cff09ac53b89ab3425ce17cf2451737cca563c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b3044809d83ae824df4c6f2c3cff09ac53b89ab3425ce17cf2451737cca563c", kill_on_drop: false }`
[INFO] [stdout] 6b3044809d83ae824df4c6f2c3cff09ac53b89ab3425ce17cf2451737cca563c
[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" "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] 1c26e7b2a661e347b3af787e69f0c2fce413ec3f246a3059c9991210a197a94f
[INFO] running `Command { std: "docker" "start" "-a" "1c26e7b2a661e347b3af787e69f0c2fce413ec3f246a3059c9991210a197a94f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
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[INFO] [stderr]    Compiling zeroize_derive v1.0.1
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[INFO] [stderr]    Compiling pin-project-internal v1.0.3
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[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling zeroize v1.2.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling curve25519-dalek v3.0.0
[INFO] [stderr]    Compiling chacha20 v0.5.0
[INFO] [stderr]    Compiling pretty-hash v0.4.1
[INFO] [stderr]    Compiling chacha20poly1305 v0.6.0
[INFO] [stderr]    Compiling x25519-dalek v1.1.0
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[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling hypercore-protocol v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "1c26e7b2a661e347b3af787e69f0c2fce413ec3f246a3059c9991210a197a94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c26e7b2a661e347b3af787e69f0c2fce413ec3f246a3059c9991210a197a94f", kill_on_drop: false }`
[INFO] [stdout] 1c26e7b2a661e347b3af787e69f0c2fce413ec3f246a3059c9991210a197a94f
[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" "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] 86fbc126742bf8443982798982e9bea1fa55f136038013078d40384f45a373b6
[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" "86fbc126742bf8443982798982e9bea1fa55f136038013078d40384f45a373b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling memory-pager v0.9.0
[INFO] [stderr]    Compiling flat-tree v5.0.0
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling mkdirp v1.0.0
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling sparse-bitfield v0.11.0
[INFO] [stderr]    Compiling merkle-tree-stream v0.12.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.9
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[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling futures-lite v1.11.3
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[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling digest v0.8.1
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[INFO] [stderr]    Compiling pretty-bytes v0.2.2
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling tree-index v0.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling random-access-storage v4.0.0
[INFO] [stderr]    Compiling curve25519-dalek v2.1.0
[INFO] [stderr]    Compiling sleep-parser v0.8.0
[INFO] [stderr]    Compiling bitfield-rle v0.2.0
[INFO] [stderr]    Compiling random-access-memory v2.0.0
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling async-io v1.3.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling piper v0.1.3
[INFO] [stderr]    Compiling async-std v1.8.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling random-access-disk v2.0.0
[INFO] [stderr]    Compiling duplexify v1.2.2
[INFO] [stderr]    Compiling hypercore v0.11.1-beta.10 (https://github.com/datrs/hypercore?branch=master#e3f304e8)
[INFO] [stderr]    Compiling hypercore-protocol v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `unwrap` found for opaque type `impl futures::Future` in the current scope
[INFO] [stdout]   --> examples/hypercore.rs:38:67
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let feed = Feed::builder(public_key, storage).build().unwrap();
[INFO] [stdout]    |                                                                   ^^^^^^ method not found in `impl futures::Future`
[INFO] [stdout]    |
[INFO] [stdout] help: consider `await`ing on the `Future` and calling the method on its `Output`
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let feed = Feed::builder(public_key, storage).build().await.unwrap();
[INFO] [stdout]    |                                                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hypercore-protocol`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "86fbc126742bf8443982798982e9bea1fa55f136038013078d40384f45a373b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86fbc126742bf8443982798982e9bea1fa55f136038013078d40384f45a373b6", kill_on_drop: false }`
[INFO] [stdout] 86fbc126742bf8443982798982e9bea1fa55f136038013078d40384f45a373b6