[INFO] cloning repository https://github.com/cjwcommuny/toy-paxos-classic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cjwcommuny/toy-paxos-classic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjwcommuny%2Ftoy-paxos-classic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjwcommuny%2Ftoy-paxos-classic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89425ebb04d8ea6844f3a8eb5b66402d62964e2d
[INFO] checking cjwcommuny/toy-paxos-classic against try#81ab7f2139295590561adbe6d5b0aaa2feff765f for pr-146470-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjwcommuny%2Ftoy-paxos-classic" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cjwcommuny/toy-paxos-classic
[INFO] finished tweaking git repo https://github.com/cjwcommuny/toy-paxos-classic
[INFO] tweaked toml for git repo https://github.com/cjwcommuny/toy-paxos-classic written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cjwcommuny/toy-paxos-classic on toolchain 81ab7f2139295590561adbe6d5b0aaa2feff765f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cjwcommuny/toy-paxos-classic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c1d83c22122161923d814473b9b48b7fb8283ea63e793946c20e1b939ccb1b2
[INFO] running `Command { std: "docker" "start" "-a" "9c1d83c22122161923d814473b9b48b7fb8283ea63e793946c20e1b939ccb1b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c1d83c22122161923d814473b9b48b7fb8283ea63e793946c20e1b939ccb1b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c1d83c22122161923d814473b9b48b7fb8283ea63e793946c20e1b939ccb1b2", kill_on_drop: false }`
[INFO] [stdout] 9c1d83c22122161923d814473b9b48b7fb8283ea63e793946c20e1b939ccb1b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b0b895b9ee53082d98797dc7f72b9fb9b04250c8dbf1c665ae9617cc3d7e65d
[INFO] running `Command { std: "docker" "start" "-a" "6b0b895b9ee53082d98797dc7f72b9fb9b04250c8dbf1c665ae9617cc3d7e65d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.73
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling thiserror v1.0.53
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling quote v1.0.34
[INFO] [stderr]    Compiling syn v2.0.44
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling getset v0.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.53
[INFO] [stderr]    Compiling derive-new v0.6.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking paxos-classic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0446]: private type `ReadResponse<V>` in public interface
[INFO] [stdout]    --> src/alpha.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 163 | struct ReadResponse<V> {
[INFO] [stdout]     | ---------------------- `ReadResponse<V>` declared as private
[INFO] [stdout] ...
[INFO] [stdout] 175 |     type Stream: Stream<Item = Result<ReadResponse<V>, Self::Error>>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0446]: private type `WriteResponse` in public interface
[INFO] [stdout]    --> src/alpha.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | struct WriteResponse {
[INFO] [stdout]     | -------------------- `WriteResponse` declared as private
[INFO] [stdout] ...
[INFO] [stdout] 181 |     type Stream: Stream<Item = Result<WriteResponse, Self::Error>>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Value<V>` is more private than the item `WriteClient::broadcast_write`
[INFO] [stdout]    --> src/alpha.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn broadcast_write(&self, value: Value<V>) -> Self::Stream;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `WriteClient::broadcast_write` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Value<V>` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/alpha.rs:118:1
[INFO] [stdout]     |
[INFO] [stdout] 118 | struct Value<V> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read` and `write` are never used
[INFO] [stdout]   --> src/alpha.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl<V> Alpha<V>
[INFO] [stdout] 15 | | where
[INFO] [stdout] 16 | |     V: Clone,
[INFO] [stdout]    | |_____________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 90 |       fn read(&mut self, round: Round) -> ReadResponse<V> {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |       fn write(&mut self, value: Value<V>) -> WriteResponse {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `last_round_with_write` is never read
[INFO] [stdout]    --> src/alpha.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 118 | struct Value<V> {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 119 |     value: V,
[INFO] [stdout] 120 |     last_round_with_write: Round,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `round` is never read
[INFO] [stdout]    --> src/alpha.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | struct WriteResponse {
[INFO] [stdout]     |        ------------- field in this struct
[INFO] [stdout] 169 |     round: Round,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Proposer` is never constructed
[INFO] [stdout]  --> src/proposer.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Proposer<V, P, D> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `propose` is never used
[INFO] [stdout]   --> src/proposer.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 10 | / impl<V, P, D> Proposer<V, P, D>
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     V: Clone,
[INFO] [stdout] 13 | |     D: FailureDetector,
[INFO] [stdout] 14 | |     P: WriteClient<V> + ReadClient<V> + Quorum,
[INFO] [stdout]    | |_______________________________________________- method in this implementation
[INFO] [stdout] 15 |   {
[INFO] [stdout] 16 |       async fn propose(&mut self, value: V) -> V {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FailureDetector` is never used
[INFO] [stdout]   --> src/proposer.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 | trait FailureDetector {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0446`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `paxos-classic` (lib) due to 2 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0446]: private type `ReadResponse<V>` in public interface
[INFO] [stdout]    --> src/alpha.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 163 | struct ReadResponse<V> {
[INFO] [stdout]     | ---------------------- `ReadResponse<V>` declared as private
[INFO] [stdout] ...
[INFO] [stdout] 175 |     type Stream: Stream<Item = Result<ReadResponse<V>, Self::Error>>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0446]: private type `WriteResponse` in public interface
[INFO] [stdout]    --> src/alpha.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | struct WriteResponse {
[INFO] [stdout]     | -------------------- `WriteResponse` declared as private
[INFO] [stdout] ...
[INFO] [stdout] 181 |     type Stream: Stream<Item = Result<WriteResponse, Self::Error>>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Value<V>` is more private than the item `WriteClient::broadcast_write`
[INFO] [stdout]    --> src/alpha.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn broadcast_write(&self, value: Value<V>) -> Self::Stream;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `WriteClient::broadcast_write` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Value<V>` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/alpha.rs:118:1
[INFO] [stdout]     |
[INFO] [stdout] 118 | struct Value<V> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read` and `write` are never used
[INFO] [stdout]   --> src/alpha.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl<V> Alpha<V>
[INFO] [stdout] 15 | | where
[INFO] [stdout] 16 | |     V: Clone,
[INFO] [stdout]    | |_____________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 90 |       fn read(&mut self, round: Round) -> ReadResponse<V> {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |       fn write(&mut self, value: Value<V>) -> WriteResponse {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `last_round_with_write` is never read
[INFO] [stdout]    --> src/alpha.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 118 | struct Value<V> {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 119 |     value: V,
[INFO] [stdout] 120 |     last_round_with_write: Round,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `round` is never read
[INFO] [stdout]    --> src/alpha.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | struct WriteResponse {
[INFO] [stdout]     |        ------------- field in this struct
[INFO] [stdout] 169 |     round: Round,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Proposer` is never constructed
[INFO] [stdout]  --> src/proposer.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Proposer<V, P, D> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `propose` is never used
[INFO] [stdout]   --> src/proposer.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 10 | / impl<V, P, D> Proposer<V, P, D>
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     V: Clone,
[INFO] [stdout] 13 | |     D: FailureDetector,
[INFO] [stdout] 14 | |     P: WriteClient<V> + ReadClient<V> + Quorum,
[INFO] [stdout]    | |_______________________________________________- method in this implementation
[INFO] [stdout] 15 |   {
[INFO] [stdout] 16 |       async fn propose(&mut self, value: V) -> V {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FailureDetector` is never used
[INFO] [stdout]   --> src/proposer.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 | trait FailureDetector {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0446`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `paxos-classic` (lib test) due to 2 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6b0b895b9ee53082d98797dc7f72b9fb9b04250c8dbf1c665ae9617cc3d7e65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b0b895b9ee53082d98797dc7f72b9fb9b04250c8dbf1c665ae9617cc3d7e65d", kill_on_drop: false }`
[INFO] [stdout] 6b0b895b9ee53082d98797dc7f72b9fb9b04250c8dbf1c665ae9617cc3d7e65d
