[INFO] fetching crate hypercore-protocol 0.0.2...
[INFO] checking hypercore-protocol-0.0.2 against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] extracting crate hypercore-protocol 0.0.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate hypercore-protocol 0.0.2 on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hypercore-protocol 0.0.2
[INFO] finished tweaking crates.io crate hypercore-protocol 0.0.2
[INFO] tweaked toml for crates.io crate hypercore-protocol 0.0.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate hypercore-protocol 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 297e94af62790feb2d55e8622926b5d39bcc7fb3c9badc6a85e8650b143d54a2
[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" "297e94af62790feb2d55e8622926b5d39bcc7fb3c9badc6a85e8650b143d54a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "297e94af62790feb2d55e8622926b5d39bcc7fb3c9badc6a85e8650b143d54a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "297e94af62790feb2d55e8622926b5d39bcc7fb3c9badc6a85e8650b143d54a2", kill_on_drop: false }`
[INFO] [stdout] 297e94af62790feb2d55e8622926b5d39bcc7fb3c9badc6a85e8650b143d54a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e57e42504e721fa575e5887868da7d21b47335e27542fc2b1d6689c610b48351
[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" "e57e42504e721fa575e5887868da7d21b47335e27542fc2b1d6689c610b48351", kill_on_drop: false }`
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[INFO] [stderr]    Compiling hypercore-protocol v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]    --> src/protocol.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 |     error: Option<Error>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `hypercore`
[INFO] [stdout]  --> examples/hypercore.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hypercore::{Feed, Node, Proof, PublicKey, Signature, Storage};
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `hypercore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]  --> benches/throughput.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::future::{Either, FutureExt, TryFutureExt};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]    --> src/protocol.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 |     error: Option<Error>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> examples/basic.rs:50:25
[INFO] [stdout]    |
[INFO] [stdout] 50 |             _ => panic!(usage()),
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 50 |             _ => panic!("{}", usage()),
[INFO] [stdout]    |                         ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 50 |             _ => std::panic::panic_any(usage()),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FutureExt`
[INFO] [stdout]  --> benches/throughput.rs:4:31
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::future::{Either, FutureExt, TryFutureExt};
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `T` is never used
[INFO] [stdout]    --> examples/hypercore.rs:105:18
[INFO] [stdout]     |
[INFO] [stdout] 105 | struct FeedStore<T>
[INFO] [stdout]     |                  ^ unused parameter
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `T` is never used
[INFO] [stdout]    --> examples/hypercore.rs:133:20
[INFO] [stdout]     |
[INFO] [stdout] 133 | struct FeedWrapper<T>
[INFO] [stdout]     |                    ^ unused parameter
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e57e42504e721fa575e5887868da7d21b47335e27542fc2b1d6689c610b48351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e57e42504e721fa575e5887868da7d21b47335e27542fc2b1d6689c610b48351", kill_on_drop: false }`
[INFO] [stdout] e57e42504e721fa575e5887868da7d21b47335e27542fc2b1d6689c610b48351