[INFO] crate phoenix-channels 0.1.4 is already in cache [INFO] checking phoenix-channels-0.1.4 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] extracting crate phoenix-channels 0.1.4 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate phoenix-channels 0.1.4 on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate phoenix-channels 0.1.4 [INFO] finished tweaking crates.io crate phoenix-channels 0.1.4 [INFO] tweaked toml for crates.io crate phoenix-channels 0.1.4 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 9b5ae16ef9034dc8180d648e61a6fc866bc5b7939d4d8ab0a08fca2cdfa7939b [INFO] running `"docker" "start" "-a" "9b5ae16ef9034dc8180d648e61a6fc866bc5b7939d4d8ab0a08fca2cdfa7939b"` [INFO] [stderr] Checking arc-swap v0.4.6 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Checking mime v0.2.6 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking hyper v0.10.16 [INFO] [stderr] Checking slog-scope v4.3.0 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking tokio-tls v0.2.1 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking slog-stdlog v4.0.0 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking websocket v0.23.0 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Checking serde_json v1.0.52 [INFO] [stderr] Checking phoenix-channels v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/sender.rs:44:43 [INFO] [stderr] | [INFO] [stderr] 44 | pub fn heartbeat(&mut self) -> Result<(u32), MessageError> { [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/sender.rs:44:43 [INFO] [stderr] | [INFO] [stderr] 44 | pub fn heartbeat(&mut self) -> Result<(u32), MessageError> { [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `logger` [INFO] [stderr] --> src/client.rs:72:5 [INFO] [stderr] | [INFO] [stderr] 72 | logger: slog::Logger, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `logger` [INFO] [stderr] --> src/receiver.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | logger: slog::Logger, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `logger` [INFO] [stderr] --> src/client.rs:72:5 [INFO] [stderr] | [INFO] [stderr] 72 | logger: slog::Logger, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `logger` [INFO] [stderr] --> src/receiver.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | logger: slog::Logger, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/client.rs:107:17 [INFO] [stderr] | [INFO] [stderr] 107 | sender.heartbeat(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/client.rs:107:17 [INFO] [stderr] | [INFO] [stderr] 107 | sender.heartbeat(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 37.91s [INFO] running `"docker" "inspect" "9b5ae16ef9034dc8180d648e61a6fc866bc5b7939d4d8ab0a08fca2cdfa7939b"` [INFO] running `"docker" "rm" "-f" "9b5ae16ef9034dc8180d648e61a6fc866bc5b7939d4d8ab0a08fca2cdfa7939b"` [INFO] [stdout] 9b5ae16ef9034dc8180d648e61a6fc866bc5b7939d4d8ab0a08fca2cdfa7939b