[INFO] fetching crate paxakos 0.2.0...
[INFO] checking paxakos-0.2.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate paxakos 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate paxakos 0.2.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate paxakos 0.2.0
[INFO] finished tweaking crates.io crate paxakos 0.2.0
[INFO] tweaked toml for crates.io crate paxakos 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate paxakos 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", 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] 391fdfef089c011a8f24a13638d35121403ade4d29711f62b81ecb2a7432b5a7
[INFO] running `Command { std: "docker" "start" "-a" "391fdfef089c011a8f24a13638d35121403ade4d29711f62b81ecb2a7432b5a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "391fdfef089c011a8f24a13638d35121403ade4d29711f62b81ecb2a7432b5a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "391fdfef089c011a8f24a13638d35121403ade4d29711f62b81ecb2a7432b5a7", kill_on_drop: false }`
[INFO] [stdout] 391fdfef089c011a8f24a13638d35121403ade4d29711f62b81ecb2a7432b5a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--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] c56ad8fe7b9b0377e987e71ecb0b80590504869d19aaa82a02022212f19897e4
[INFO] running `Command { std: "docker" "start" "-a" "c56ad8fe7b9b0377e987e71ecb0b80590504869d19aaa82a02022212f19897e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking pin-project-lite v0.1.6
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]    Compiling blake3 v0.3.4
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling async-trait v0.1.31
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking tracing v0.1.14
[INFO] [stderr]     Checking pin-project v0.4.17
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking streamunordered v0.5.1
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking tracing-serde v0.1.1
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking paxakos v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tracing-subscriber v0.2.5
[INFO] [stdout] warning: the feature `range_is_empty` has been stable since 1.47.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:544:12
[INFO] [stdout]     |
[INFO] [stdout] 544 | #![feature(range_is_empty)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `paxakos::prototyping`
[INFO] [stdout]  --> examples/chat/main.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | use paxakos::prototyping::{DirectCommunicator, PrototypingNode, RetryIndefinitely};
[INFO] [stdout]   |              ^^^^^^^^^^^ could not find `prototyping` in `paxakos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NodeInfo`
[INFO] [stdout]  --> examples/chat/main.rs:8:56
[INFO] [stdout]   |
[INFO] [stdout] 8 | use paxakos::{LogEntry, Node, NodeBuilder, NodeHandle, NodeInfo, RoundNum, State};
[INFO] [stdout]   |                                                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `paxakos`
[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: the feature `range_is_empty` has been stable since 1.47.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:544:12
[INFO] [stdout]     |
[INFO] [stdout] 544 | #![feature(range_is_empty)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c56ad8fe7b9b0377e987e71ecb0b80590504869d19aaa82a02022212f19897e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c56ad8fe7b9b0377e987e71ecb0b80590504869d19aaa82a02022212f19897e4", kill_on_drop: false }`
[INFO] [stdout] c56ad8fe7b9b0377e987e71ecb0b80590504869d19aaa82a02022212f19897e4