[INFO] fetching crate embedded_redis_client 0.1.0... [INFO] checking embedded_redis_client-0.1.0 against master#49b6ac01d6f4c3da812039ae846407a20961aa4c for pr-154887 [INFO] extracting crate embedded_redis_client 0.1.0 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate embedded_redis_client 0.1.0 [INFO] finished tweaking crates.io crate embedded_redis_client 0.1.0 [INFO] tweaked toml for crates.io crate embedded_redis_client 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate embedded_redis_client 0.1.0 on toolchain 49b6ac01d6f4c3da812039ae846407a20961aa4c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 118 packages to latest compatible versions [INFO] [stderr] Adding rand v0.8.6 (available: v0.10.1) [INFO] [stderr] Adding redis v0.19.0 (available: v1.2.0) [INFO] [stderr] Adding strum v0.20.0 (available: v0.28.0) [INFO] [stderr] Adding strum_macros v0.20.1 (available: v0.28.0) [INFO] [stderr] Adding uuid v0.8.2 (available: v1.23.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded redis v0.19.0 [INFO] [stderr] Downloaded strum v0.20.0 [INFO] [stderr] Downloaded strum_macros v0.20.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9a923f27a398068f18526131cd966330bd3dc86e6d7d3c5aa794a93d3c95a745 [INFO] running `Command { std: "docker" "start" "-a" "9a923f27a398068f18526131cd966330bd3dc86e6d7d3c5aa794a93d3c95a745", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9a923f27a398068f18526131cd966330bd3dc86e6d7d3c5aa794a93d3c95a745", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a923f27a398068f18526131cd966330bd3dc86e6d7d3c5aa794a93d3c95a745", kill_on_drop: false }` [INFO] [stdout] 9a923f27a398068f18526131cd966330bd3dc86e6d7d3c5aa794a93d3c95a745 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 917aae3e10308c5c134e14ee5286a53a061fa9aece500090b630e41a2ac3531a [INFO] running `Command { std: "docker" "start" "-a" "917aae3e10308c5c134e14ee5286a53a061fa9aece500090b630e41a2ac3531a", kill_on_drop: false }` [INFO] [stderr] Compiling rustix v1.1.4 [INFO] [stderr] Checking futures-lite v2.6.1 [INFO] [stderr] Checking piper v0.2.5 [INFO] [stderr] Checking getrandom v0.2.17 [INFO] [stderr] Checking tokio v1.52.1 [INFO] [stderr] Checking event-listener v5.4.1 [INFO] [stderr] Checking futures-util v0.3.32 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Checking arc-swap v1.9.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking sha1 v0.6.1 [INFO] [stderr] Checking dtoa v0.4.8 [INFO] [stderr] Checking strum v0.20.0 [INFO] [stderr] Checking icu_normalizer v2.2.0 [INFO] [stderr] Checking event-listener-strategy v0.5.4 [INFO] [stderr] Compiling strum_macros v0.20.1 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking async-channel v2.5.0 [INFO] [stderr] Checking async-lock v3.4.2 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking idna_adapter v1.2.1 [INFO] [stderr] Checking idna v1.1.0 [INFO] [stderr] Checking async-executor v1.14.0 [INFO] [stderr] Checking blocking v1.6.2 [INFO] [stderr] Checking rand v0.8.6 [INFO] [stderr] Checking url v2.5.8 [INFO] [stderr] Checking futures-executor v0.3.32 [INFO] [stderr] Checking futures v0.3.32 [INFO] [stderr] Checking tokio-util v0.7.18 [INFO] [stderr] Checking tokio-util v0.6.10 [INFO] [stderr] Checking combine v4.6.7 [INFO] [stderr] Checking polling v3.11.0 [INFO] [stderr] Checking async-io v2.6.0 [INFO] [stderr] Checking async-global-executor v2.4.1 [INFO] [stderr] Checking async-std v1.13.2 [INFO] [stderr] Checking redis v0.19.0 [INFO] [stderr] Checking embedded_redis_client v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `faulty_client` [INFO] [stdout] --> src/embedded_redis_client/embedded_redis_client.rs:59:41 [INFO] [stdout] | [INFO] [stdout] 59 | EmbeddedRedisClient::Faulty(faulty_client) => Err(EmbeddedRedisClientError::new( [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_faulty_client` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `faulty_client` [INFO] [stdout] --> src/embedded_redis_client/embedded_redis_client.rs:101:49 [INFO] [stdout] | [INFO] [stdout] 101 | EmbeddedRedisClient::Faulty(faulty_client) => Err(EmbeddedRedisClientError::new( [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_faulty_client` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `faulty_client` [INFO] [stdout] --> src/embedded_redis_client/embedded_redis_client.rs:59:41 [INFO] [stdout] | [INFO] [stdout] 59 | EmbeddedRedisClient::Faulty(faulty_client) => Err(EmbeddedRedisClientError::new( [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_faulty_client` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `faulty_client` [INFO] [stdout] --> src/embedded_redis_client/embedded_redis_client.rs:101:49 [INFO] [stdout] | [INFO] [stdout] 101 | EmbeddedRedisClient::Faulty(faulty_client) => Err(EmbeddedRedisClientError::new( [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_faulty_client` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `redis_server_ready_to_start` [INFO] [stdout] --> src/embedded_redis_server/states/started.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | redis_server_ready_to_start: ReadyToStart, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_redis_server_ready_to_start` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `settings` is never read [INFO] [stdout] --> src/embedded_redis_client/states/faulty.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct FaultyRedisClient { [INFO] [stdout] | ----------------- field in this struct [INFO] [stdout] 7 | settings: EmbeddedRedisClientSettings, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FaultyRedisClient` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_multiplexed_redis_server_connection` is never used [INFO] [stdout] --> src/embedded_redis_server/embedded_redis_server.rs:109:18 [INFO] [stdout] | [INFO] [stdout] 109 | pub async fn get_multiplexed_redis_server_connection( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `server_process` is never read [INFO] [stdout] --> src/embedded_redis_server/states/ready.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct ReadyRedisServerProcess { [INFO] [stdout] | ----------------------- field in this struct [INFO] [stdout] 10 | server_process: StartedRedisServerProcess, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `connection` is never read [INFO] [stdout] --> src/embedded_redis_server/states/running_in_another_process.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct RedisServerRunningInAnotherProcess { [INFO] [stdout] | ---------------------------------- field in this struct [INFO] [stdout] 8 | connection: redis::Connection, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `kill_process_occupying_target_tcp_port` is never used [INFO] [stdout] --> src/embedded_redis_server/util.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn kill_process_occupying_target_tcp_port(port: u16) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `trim_newline` is never used [INFO] [stdout] --> src/embedded_redis_server/util.rs:55:4 [INFO] [stdout] | [INFO] [stdout] 55 | fn trim_newline(s: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `redis_server_ready_to_start` [INFO] [stdout] --> src/embedded_redis_server/states/started.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | redis_server_ready_to_start: ReadyToStart, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_redis_server_ready_to_start` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/embedded_redis_client/embedded_redis_client.rs:25:17 [INFO] [stdout] | [INFO] [stdout] 25 | drop(ready_client); [INFO] [stdout] | ^^^^^------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ReadyRedisClient` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 25 - drop(ready_client); [INFO] [stdout] 25 + let _ = ready_client; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `settings` is never read [INFO] [stdout] --> src/embedded_redis_client/states/faulty.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct FaultyRedisClient { [INFO] [stdout] | ----------------- field in this struct [INFO] [stdout] 7 | settings: EmbeddedRedisClientSettings, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FaultyRedisClient` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_multiplexed_redis_server_connection` is never used [INFO] [stdout] --> src/embedded_redis_server/embedded_redis_server.rs:109:18 [INFO] [stdout] | [INFO] [stdout] 109 | pub async fn get_multiplexed_redis_server_connection( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `server_process` is never read [INFO] [stdout] --> src/embedded_redis_server/states/ready.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct ReadyRedisServerProcess { [INFO] [stdout] | ----------------------- field in this struct [INFO] [stdout] 10 | server_process: StartedRedisServerProcess, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `connection` is never read [INFO] [stdout] --> src/embedded_redis_server/states/running_in_another_process.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct RedisServerRunningInAnotherProcess { [INFO] [stdout] | ---------------------------------- field in this struct [INFO] [stdout] 8 | connection: redis::Connection, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `kill_process_occupying_target_tcp_port` is never used [INFO] [stdout] --> src/embedded_redis_server/util.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn kill_process_occupying_target_tcp_port(port: u16) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `trim_newline` is never used [INFO] [stdout] --> src/embedded_redis_server/util.rs:55:4 [INFO] [stdout] | [INFO] [stdout] 55 | fn trim_newline(s: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/embedded_redis_client/embedded_redis_client.rs:25:17 [INFO] [stdout] | [INFO] [stdout] 25 | drop(ready_client); [INFO] [stdout] | ^^^^^------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ReadyRedisClient` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 25 - drop(ready_client); [INFO] [stdout] 25 + let _ = ready_client; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.58s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: redis v0.19.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "917aae3e10308c5c134e14ee5286a53a061fa9aece500090b630e41a2ac3531a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "917aae3e10308c5c134e14ee5286a53a061fa9aece500090b630e41a2ac3531a", kill_on_drop: false }` [INFO] [stdout] 917aae3e10308c5c134e14ee5286a53a061fa9aece500090b630e41a2ac3531a