[INFO] fetching crate phoenix-channels 0.1.4... [INFO] checking phoenix-channels-0.1.4 against master#18a6d911caba59605eb03db1452848a85d2e5879 for pr-112743 [INFO] extracting crate phoenix-channels 0.1.4 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate phoenix-channels 0.1.4 on toolchain 18a6d911caba59605eb03db1452848a85d2e5879 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-3-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded slog v2.7.0 [INFO] [stderr] Downloaded slog-scope v4.4.0 [INFO] [stderr] Downloaded slog-stdlog v4.1.1 [INFO] [stderr] Downloaded websocket v0.23.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c9890971b47120eec3b5c75b10e9e75347a49be042b55360fb45bffee6c61b44 [INFO] running `Command { std: "docker" "start" "-a" "c9890971b47120eec3b5c75b10e9e75347a49be042b55360fb45bffee6c61b44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c9890971b47120eec3b5c75b10e9e75347a49be042b55360fb45bffee6c61b44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9890971b47120eec3b5c75b10e9e75347a49be042b55360fb45bffee6c61b44", kill_on_drop: false }` [INFO] [stdout] c9890971b47120eec3b5c75b10e9e75347a49be042b55360fb45bffee6c61b44 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b616ea9c20cab6d057531b1f61a4f60efd47acf50697fb701d343fbf1a4f640f [INFO] running `Command { std: "docker" "start" "-a" "b616ea9c20cab6d057531b1f61a4f60efd47acf50697fb701d343fbf1a4f640f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Compiling openssl-sys v0.9.88 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling openssl v0.10.54 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Compiling parking_lot_core v0.6.3 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Compiling slog v2.7.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking safemem v0.3.3 [INFO] [stderr] Checking unicase v1.4.2 [INFO] [stderr] Checking time v0.1.45 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking sha1_smol v1.0.0 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking base64 v0.9.3 [INFO] [stderr] Checking traitobject v0.1.0 [INFO] [stderr] Checking mime v0.2.6 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking typeable v0.1.2 [INFO] [stderr] Checking language-tags v0.2.2 [INFO] [stderr] Checking sha1 v0.6.1 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking base64 v0.10.1 [INFO] [stderr] Checking serde_json v1.0.97 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking slog-scope v4.4.0 [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Checking slog-stdlog v4.1.1 [INFO] [stderr] Checking hyper v0.10.16 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking tokio-executor v0.1.10 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio-tls v0.2.1 [INFO] [stderr] Checking websocket v0.23.0 [INFO] [stderr] Checking phoenix-channels v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sender.rs:44:43 [INFO] [stdout] | [INFO] [stdout] 44 | pub fn heartbeat(&mut self) -> Result<(u32), MessageError> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 44 - pub fn heartbeat(&mut self) -> Result<(u32), MessageError> { [INFO] [stdout] 44 + pub fn heartbeat(&mut self) -> Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sender.rs:44:43 [INFO] [stdout] | [INFO] [stdout] 44 | pub fn heartbeat(&mut self) -> Result<(u32), MessageError> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 44 - pub fn heartbeat(&mut self) -> Result<(u32), MessageError> { [INFO] [stdout] 44 + pub fn heartbeat(&mut self) -> Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `logger` is never read [INFO] [stdout] --> src/client.rs:72:5 [INFO] [stdout] | [INFO] [stdout] 71 | pub struct Client { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 72 | logger: slog::Logger, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `logger` is never read [INFO] [stdout] --> src/receiver.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Receiver [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 10 | { [INFO] [stdout] 11 | logger: slog::Logger, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/client.rs:107:17 [INFO] [stdout] | [INFO] [stdout] 107 | sender.heartbeat(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 107 | let _ = sender.heartbeat(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `logger` is never read [INFO] [stdout] --> src/client.rs:72:5 [INFO] [stdout] | [INFO] [stdout] 71 | pub struct Client { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 72 | logger: slog::Logger, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `logger` is never read [INFO] [stdout] --> src/receiver.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Receiver [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 10 | { [INFO] [stdout] 11 | logger: slog::Logger, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/client.rs:107:17 [INFO] [stdout] | [INFO] [stdout] 107 | sender.heartbeat(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 107 | let _ = sender.heartbeat(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.56s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "b616ea9c20cab6d057531b1f61a4f60efd47acf50697fb701d343fbf1a4f640f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b616ea9c20cab6d057531b1f61a4f60efd47acf50697fb701d343fbf1a4f640f", kill_on_drop: false }` [INFO] [stdout] b616ea9c20cab6d057531b1f61a4f60efd47acf50697fb701d343fbf1a4f640f