[INFO] cloning repository https://github.com/hb475721797/mini-redis [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hb475721797/mini-redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhb475721797%2Fmini-redis", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhb475721797%2Fmini-redis'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 38db0b27e19e13947ba74093e6a9b5a34e72363d [INFO] testing hb475721797/mini-redis against try#a7ce54db9b096bd1098d07c645b489195a667c9f for pr-137940-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhb475721797%2Fmini-redis" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hb475721797/mini-redis on toolchain a7ce54db9b096bd1098d07c645b489195a667c9f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hb475721797/mini-redis [INFO] finished tweaking git repo https://github.com/hb475721797/mini-redis [INFO] tweaked toml for git repo https://github.com/hb475721797/mini-redis written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/hb475721797/mini-redis 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" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 10a378104eaf3fd4043fa2b402a28bd3d3f957cb838d1966870987c541bcdf9d [INFO] running `Command { std: "docker" "start" "-a" "10a378104eaf3fd4043fa2b402a28bd3d3f957cb838d1966870987c541bcdf9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "10a378104eaf3fd4043fa2b402a28bd3d3f957cb838d1966870987c541bcdf9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10a378104eaf3fd4043fa2b402a28bd3d3f957cb838d1966870987c541bcdf9d", kill_on_drop: false }` [INFO] [stdout] 10a378104eaf3fd4043fa2b402a28bd3d3f957cb838d1966870987c541bcdf9d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1fe2f8013ac12e23cfbbbc6f443e2315a3575bc42d4e93ab2f2aecb11b2c1c28 [INFO] running `Command { std: "docker" "start" "-a" "1fe2f8013ac12e23cfbbbc6f443e2315a3575bc42d4e93ab2f2aecb11b2c1c28", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling serde_derive v1.0.117 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling pin-project-lite v0.1.11 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling tracing-core v0.1.17 [INFO] [stderr] Compiling regex-syntax v0.6.20 [INFO] [stderr] Compiling instant v0.1.8 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling serde_json v1.0.59 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Compiling lock_api v0.4.1 [INFO] [stderr] Compiling futures-core v0.3.7 [INFO] [stderr] Compiling itoa v0.4.6 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling sharded-slab v0.1.0 [INFO] [stderr] Compiling bytes v0.6.0 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling tracing-log v0.1.1 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling parking_lot_core v0.8.0 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling mio v0.7.4 [INFO] [stderr] Compiling signal-hook-registry v1.2.1 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling atoi v0.3.3 [INFO] [stderr] Compiling parking_lot v0.11.0 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling regex v1.4.1 [INFO] [stderr] Compiling matchers v0.0.1 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling tracing-attributes v0.1.11 [INFO] [stderr] Compiling pin-project-internal v0.4.27 [INFO] [stderr] Compiling tokio-macros v0.3.1 [INFO] [stderr] Compiling structopt-derive v0.4.13 [INFO] [stderr] Compiling async-stream-impl v0.2.1 [INFO] [stderr] Compiling tokio v0.3.1 [INFO] [stderr] Compiling async-stream v0.2.1 [INFO] [stderr] Compiling tracing v0.1.21 [INFO] [stderr] Compiling pin-project v0.4.27 [INFO] [stderr] Compiling tracing-futures v0.2.4 [INFO] [stderr] Compiling structopt v0.3.20 [INFO] [stderr] Compiling tracing-serde v0.1.2 [INFO] [stderr] Compiling tracing-subscriber v0.2.14 [INFO] [stderr] Compiling w v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `instrument` [INFO] [stdout] --> src/server.rs:5:35 [INFO] [stdout] | [INFO] [stdout] 5 | use tracing::{debug, error, info, instrument}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::io::BufWriter` [INFO] [stdout] --> src/server.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use tokio::io::BufWriter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bytes::BytesMut` [INFO] [stdout] --> src/server.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use bytes::BytesMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/frame.rs:52:31 [INFO] [stdout] | [INFO] [stdout] 52 | skip(src, (len + 2)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 52 - skip(src, (len + 2)) [INFO] [stdout] 52 + skip(src, len + 2) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `instrument` [INFO] [stdout] --> src/cmd/get.rs:5:22 [INFO] [stdout] | [INFO] [stdout] 5 | use tracing::{debug, instrument}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `instrument` [INFO] [stdout] --> src/cmd/set.rs:7:22 [INFO] [stdout] | [INFO] [stdout] 7 | use tracing::{debug, instrument}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::cmd::Command` [INFO] [stdout] --> src/parse.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::cmd::Command; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/connection.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 23 | / loop { [INFO] [stdout] 24 | | if let Some(frame) = self.parse_frame()? { [INFO] [stdout] 25 | | return Ok(Some(frame)); [INFO] [stdout] ... | [INFO] [stdout] 35 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 38 | Ok(Some(Frame::Null)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `shutdown` [INFO] [stdout] --> src/cmd/mod.rs:39:68 [INFO] [stdout] | [INFO] [stdout] 39 | pub(crate) async fn apply(self, db: &Db, dst: &mut Connection, shutdown: &mut Shutdown) -> crate::Result<()> { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shutdown` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | let mut backoff = 1; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `limit_connections` is never read [INFO] [stdout] --> src/server.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Handler { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 28 | limit_connections: Arc, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Handler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pub_sub` is never read [INFO] [stdout] --> src/db.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 19 | struct State { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 22 | pub_sub: HashMap>, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `command_name` is never read [INFO] [stdout] --> src/cmd/unknown.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Unknown { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 3 | command_name: String [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_name` is never used [INFO] [stdout] --> src/cmd/unknown.rs:13:19 [INFO] [stdout] | [INFO] [stdout] 6 | impl Unknown { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 13 | pub(crate) fn get_name(&self) -> &str { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/server.rs:109:13 [INFO] [stdout] | [INFO] [stdout] 109 | backoff * 2; [INFO] [stdout] | ^^^^^^^^^^^ the arithmetic operation produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 109 | let _ = backoff * 2; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/server.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | tracing_subscriber::fmt::try_init(); [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] 9 | let _ = tracing_subscriber::fmt::try_init(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.83s [INFO] running `Command { std: "docker" "inspect" "1fe2f8013ac12e23cfbbbc6f443e2315a3575bc42d4e93ab2f2aecb11b2c1c28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1fe2f8013ac12e23cfbbbc6f443e2315a3575bc42d4e93ab2f2aecb11b2c1c28", kill_on_drop: false }` [INFO] [stdout] 1fe2f8013ac12e23cfbbbc6f443e2315a3575bc42d4e93ab2f2aecb11b2c1c28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 827c5dbd4351360902992378dd54191de0a22a853b163c9cd4a0339bff5cff79 [INFO] running `Command { std: "docker" "start" "-a" "827c5dbd4351360902992378dd54191de0a22a853b163c9cd4a0339bff5cff79", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `instrument` [INFO] [stdout] --> src/server.rs:5:35 [INFO] [stdout] | [INFO] [stdout] 5 | use tracing::{debug, error, info, instrument}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::io::BufWriter` [INFO] [stdout] --> src/server.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use tokio::io::BufWriter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bytes::BytesMut` [INFO] [stdout] --> src/server.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use bytes::BytesMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/frame.rs:52:31 [INFO] [stdout] | [INFO] [stdout] 52 | skip(src, (len + 2)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 52 - skip(src, (len + 2)) [INFO] [stdout] 52 + skip(src, len + 2) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `instrument` [INFO] [stdout] --> src/cmd/get.rs:5:22 [INFO] [stdout] | [INFO] [stdout] 5 | use tracing::{debug, instrument}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling w v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `instrument` [INFO] [stdout] --> src/cmd/set.rs:7:22 [INFO] [stdout] | [INFO] [stdout] 7 | use tracing::{debug, instrument}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::cmd::Command` [INFO] [stdout] --> src/parse.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::cmd::Command; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/connection.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 23 | / loop { [INFO] [stdout] 24 | | if let Some(frame) = self.parse_frame()? { [INFO] [stdout] 25 | | return Ok(Some(frame)); [INFO] [stdout] ... | [INFO] [stdout] 35 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 38 | Ok(Some(Frame::Null)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `shutdown` [INFO] [stdout] --> src/cmd/mod.rs:39:68 [INFO] [stdout] | [INFO] [stdout] 39 | pub(crate) async fn apply(self, db: &Db, dst: &mut Connection, shutdown: &mut Shutdown) -> crate::Result<()> { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shutdown` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | let mut backoff = 1; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `limit_connections` is never read [INFO] [stdout] --> src/server.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Handler { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 28 | limit_connections: Arc, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Handler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pub_sub` is never read [INFO] [stdout] --> src/db.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 19 | struct State { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 22 | pub_sub: HashMap>, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `command_name` is never read [INFO] [stdout] --> src/cmd/unknown.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Unknown { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 3 | command_name: String [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_name` is never used [INFO] [stdout] --> src/cmd/unknown.rs:13:19 [INFO] [stdout] | [INFO] [stdout] 6 | impl Unknown { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 13 | pub(crate) fn get_name(&self) -> &str { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/server.rs:109:13 [INFO] [stdout] | [INFO] [stdout] 109 | backoff * 2; [INFO] [stdout] | ^^^^^^^^^^^ the arithmetic operation produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 109 | let _ = backoff * 2; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/server.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | tracing_subscriber::fmt::try_init(); [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] 9 | let _ = tracing_subscriber::fmt::try_init(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `instrument` [INFO] [stdout] --> src/server.rs:5:35 [INFO] [stdout] | [INFO] [stdout] 5 | use tracing::{debug, error, info, instrument}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::io::BufWriter` [INFO] [stdout] --> src/server.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use tokio::io::BufWriter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bytes::BytesMut` [INFO] [stdout] --> src/server.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use bytes::BytesMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/frame.rs:52:31 [INFO] [stdout] | [INFO] [stdout] 52 | skip(src, (len + 2)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 52 - skip(src, (len + 2)) [INFO] [stdout] 52 + skip(src, len + 2) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `instrument` [INFO] [stdout] --> src/cmd/get.rs:5:22 [INFO] [stdout] | [INFO] [stdout] 5 | use tracing::{debug, instrument}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `instrument` [INFO] [stdout] --> src/cmd/set.rs:7:22 [INFO] [stdout] | [INFO] [stdout] 7 | use tracing::{debug, instrument}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::cmd::Command` [INFO] [stdout] --> src/parse.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::cmd::Command; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/connection.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 23 | / loop { [INFO] [stdout] 24 | | if let Some(frame) = self.parse_frame()? { [INFO] [stdout] 25 | | return Ok(Some(frame)); [INFO] [stdout] ... | [INFO] [stdout] 35 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 38 | Ok(Some(Frame::Null)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `shutdown` [INFO] [stdout] --> src/cmd/mod.rs:39:68 [INFO] [stdout] | [INFO] [stdout] 39 | pub(crate) async fn apply(self, db: &Db, dst: &mut Connection, shutdown: &mut Shutdown) -> crate::Result<()> { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shutdown` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | let mut backoff = 1; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `limit_connections` is never read [INFO] [stdout] --> src/server.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Handler { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 28 | limit_connections: Arc, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Handler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pub_sub` is never read [INFO] [stdout] --> src/db.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 19 | struct State { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 22 | pub_sub: HashMap>, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `command_name` is never read [INFO] [stdout] --> src/cmd/unknown.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Unknown { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 3 | command_name: String [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_name` is never used [INFO] [stdout] --> src/cmd/unknown.rs:13:19 [INFO] [stdout] | [INFO] [stdout] 6 | impl Unknown { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 13 | pub(crate) fn get_name(&self) -> &str { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/server.rs:109:13 [INFO] [stdout] | [INFO] [stdout] 109 | backoff * 2; [INFO] [stdout] | ^^^^^^^^^^^ the arithmetic operation produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 109 | let _ = backoff * 2; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.01s [INFO] running `Command { std: "docker" "inspect" "827c5dbd4351360902992378dd54191de0a22a853b163c9cd4a0339bff5cff79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "827c5dbd4351360902992378dd54191de0a22a853b163c9cd4a0339bff5cff79", kill_on_drop: false }` [INFO] [stdout] 827c5dbd4351360902992378dd54191de0a22a853b163c9cd4a0339bff5cff79 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] cccd5e7f4f930b6cc11e19e18666670fd02aa129383ff508b1d11ea8f00ddbd7 [INFO] running `Command { std: "docker" "start" "-a" "cccd5e7f4f930b6cc11e19e18666670fd02aa129383ff508b1d11ea8f00ddbd7", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `instrument` [INFO] [stderr] --> src/server.rs:5:35 [INFO] [stderr] | [INFO] [stderr] 5 | use tracing::{debug, error, info, instrument}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::io::BufWriter` [INFO] [stderr] --> src/server.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use tokio::io::BufWriter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `bytes::BytesMut` [INFO] [stderr] --> src/server.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use bytes::BytesMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/frame.rs:52:31 [INFO] [stderr] | [INFO] [stderr] 52 | skip(src, (len + 2)) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 52 - skip(src, (len + 2)) [INFO] [stderr] 52 + skip(src, len + 2) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused import: `instrument` [INFO] [stderr] --> src/cmd/get.rs:5:22 [INFO] [stderr] | [INFO] [stderr] 5 | use tracing::{debug, instrument}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `instrument` [INFO] [stderr] --> src/cmd/set.rs:7:22 [INFO] [stderr] | [INFO] [stderr] 7 | use tracing::{debug, instrument}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::cmd::Command` [INFO] [stderr] --> src/parse.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use crate::cmd::Command; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/connection.rs:38:9 [INFO] [stderr] | [INFO] [stderr] 23 | / loop { [INFO] [stderr] 24 | | if let Some(frame) = self.parse_frame()? { [INFO] [stderr] 25 | | return Ok(Some(frame)); [INFO] [stderr] ... | [INFO] [stderr] 35 | | } [INFO] [stderr] | |_________- any code following this expression is unreachable [INFO] [stderr] ... [INFO] [stderr] 38 | Ok(Some(Frame::Null)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `shutdown` [INFO] [stderr] --> src/cmd/mod.rs:39:68 [INFO] [stderr] | [INFO] [stderr] 39 | pub(crate) async fn apply(self, db: &Db, dst: &mut Connection, shutdown: &mut Shutdown) -> crate::Result<()> { [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shutdown` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/server.rs:95:13 [INFO] [stderr] | [INFO] [stderr] 95 | let mut backoff = 1; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `limit_connections` is never read [INFO] [stderr] --> src/server.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 25 | struct Handler { [INFO] [stderr] | ------- field in this struct [INFO] [stderr] ... [INFO] [stderr] 28 | limit_connections: Arc, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Handler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `pub_sub` is never read [INFO] [stderr] --> src/db.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 19 | struct State { [INFO] [stderr] | ----- field in this struct [INFO] [stderr] ... [INFO] [stderr] 22 | pub_sub: HashMap>, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: field `command_name` is never read [INFO] [stderr] --> src/cmd/unknown.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 2 | pub struct Unknown { [INFO] [stderr] | ------- field in this struct [INFO] [stderr] 3 | command_name: String [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: method `get_name` is never used [INFO] [stderr] --> src/cmd/unknown.rs:13:19 [INFO] [stderr] | [INFO] [stderr] 6 | impl Unknown { [INFO] [stderr] | ------------ method in this implementation [INFO] [stderr] ... [INFO] [stderr] 13 | pub(crate) fn get_name(&self) -> &str { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused arithmetic operation that must be used [INFO] [stderr] --> src/server.rs:109:13 [INFO] [stderr] | [INFO] [stderr] 109 | backoff * 2; [INFO] [stderr] | ^^^^^^^^^^^ the arithmetic operation produces a value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 109 | let _ = backoff * 2; [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `w` (lib) generated 15 warnings (run `cargo fix --lib -p w` to apply 8 suggestions) [INFO] [stderr] warning: `w` (lib test) generated 15 warnings (15 duplicates) [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/bin/server.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | tracing_subscriber::fmt::try_init(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 9 | let _ = tracing_subscriber::fmt::try_init(); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `w` (bin "w-server" test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/w-1b5fff3d69f4a0fa) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/cli.rs (/opt/rustwide/target/debug/deps/w_cli-24ffbf8dbc4b120c) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/server.rs (/opt/rustwide/target/debug/deps/w_server-7d7e3641b2c9d919) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests w [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/frame.rs:52:31 [INFO] [stderr] | [INFO] [stderr] 52 | skip(src, (len + 2)) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 52 - skip(src, (len + 2)) [INFO] [stderr] 52 + skip(src, len + 2) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "cccd5e7f4f930b6cc11e19e18666670fd02aa129383ff508b1d11ea8f00ddbd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cccd5e7f4f930b6cc11e19e18666670fd02aa129383ff508b1d11ea8f00ddbd7", kill_on_drop: false }` [INFO] [stdout] cccd5e7f4f930b6cc11e19e18666670fd02aa129383ff508b1d11ea8f00ddbd7