[INFO] fetching crate paxos-rust 0.2.0...
[INFO] checking paxos-rust-0.2.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate paxos-rust 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate paxos-rust 0.2.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate paxos-rust 0.2.0
[INFO] finished tweaking crates.io crate paxos-rust 0.2.0
[INFO] tweaked toml for crates.io crate paxos-rust 0.2.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2730c8cc81b18fe60a83de25834a0f7e599b8b2c26b717b8214e0e2d9cd63318
[INFO] running `"docker" "start" "-a" "2730c8cc81b18fe60a83de25834a0f7e599b8b2c26b717b8214e0e2d9cd63318"`
[INFO] [stderr]     Checking paxos-rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/acceptor.rs:18:31
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub messenger: Option<Box<Messenger<T>>>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Messenger<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/learner.rs:19:31
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub messenger: Option<Box<Messenger<T>>>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Messenger<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/proposer.rs:15:31
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub messenger: Option<Box<Messenger<T>>>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Messenger<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: attribute must be of the form `#[test]`
[INFO] [stderr]    --> src/learner.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     #[test(should_panic)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ill_formed_attribute_input)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/acceptor.rs:18:31
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub messenger: Option<Box<Messenger<T>>>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Messenger<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/learner.rs:19:31
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub messenger: Option<Box<Messenger<T>>>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Messenger<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/proposer.rs:15:31
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub messenger: Option<Box<Messenger<T>>>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Messenger<T>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "2730c8cc81b18fe60a83de25834a0f7e599b8b2c26b717b8214e0e2d9cd63318"`
[INFO] running `"docker" "rm" "-f" "2730c8cc81b18fe60a83de25834a0f7e599b8b2c26b717b8214e0e2d9cd63318"`
[INFO] [stdout] 2730c8cc81b18fe60a83de25834a0f7e599b8b2c26b717b8214e0e2d9cd63318