[INFO] fetching crate twinkle 0.1.3... [INFO] building twinkle-0.1.3 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2 [INFO] extracting crate twinkle 0.1.3 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate twinkle 0.1.3 [INFO] finished tweaking crates.io crate twinkle 0.1.3 [INFO] tweaked toml for crates.io crate twinkle 0.1.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate twinkle 0.1.3 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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 51 packages to latest compatible versions [INFO] [stderr] Adding tokio v0.2.25 (available: v1.47.1) [INFO] [stderr] Adding uuid v0.8.2 (available: v1.18.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 30eacb72370178c311d329462e0ba3dcf9b1687db52fc6ad045c1572c8d1ca76 [INFO] running `Command { std: "docker" "start" "-a" "30eacb72370178c311d329462e0ba3dcf9b1687db52fc6ad045c1572c8d1ca76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "30eacb72370178c311d329462e0ba3dcf9b1687db52fc6ad045c1572c8d1ca76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30eacb72370178c311d329462e0ba3dcf9b1687db52fc6ad045c1572c8d1ca76", kill_on_drop: false }` [INFO] [stdout] 30eacb72370178c311d329462e0ba3dcf9b1687db52fc6ad045c1572c8d1ca76 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4b2de5d40bd53d5a2e2b2b25633305c19c01d10ecee3826e4f5bf18ba99a2f05 [INFO] running `Command { std: "docker" "start" "-a" "4b2de5d40bd53d5a2e2b2b25633305c19c01d10ecee3826e4f5bf18ba99a2f05", kill_on_drop: false }` [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling bytes v0.5.6 [INFO] [stderr] Compiling pin-project-lite v0.1.12 [INFO] [stderr] Compiling mio-uds v0.6.8 [INFO] [stderr] Compiling uuid v0.8.2 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Compiling tokio v0.2.25 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling twinkle v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::errors::*` [INFO] [stdout] --> src/listener.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use crate::errors::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::errors::*` [INFO] [stdout] --> src/request.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::errors::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/request.rs:16:34 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn issue(self) -> Result<(Packet), std::io::Error> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 16 - pub fn issue(self) -> Result<(Packet), std::io::Error> { [INFO] [stdout] 16 + pub fn issue(self) -> Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::errors::*` [INFO] [stdout] --> src/packet.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use crate::errors::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future::join` [INFO] [stdout] --> src/lib.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | use futures::future::join; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::time::timeout` [INFO] [stdout] --> src/lib.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | use tokio::time::timeout; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/lib.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | use std::time::{Duration}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ErrorKind` and `Error` [INFO] [stdout] --> src/lib.rs:44:15 [INFO] [stdout] | [INFO] [stdout] 44 | use std::io::{Error, ErrorKind}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `TIMEOUT` is never used [INFO] [stdout] --> src/types.rs:15:11 [INFO] [stdout] | [INFO] [stdout] 15 | pub const TIMEOUT: Duration = Duration::from_secs(1); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TwinkleError` is never used [INFO] [stdout] --> src/errors.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | pub enum TwinkleError { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/dispatcher.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | sock.send(&b).await; [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 15 | let _ = sock.send(&b).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.00s [INFO] running `Command { std: "docker" "inspect" "4b2de5d40bd53d5a2e2b2b25633305c19c01d10ecee3826e4f5bf18ba99a2f05", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b2de5d40bd53d5a2e2b2b25633305c19c01d10ecee3826e4f5bf18ba99a2f05", kill_on_drop: false }` [INFO] [stdout] 4b2de5d40bd53d5a2e2b2b25633305c19c01d10ecee3826e4f5bf18ba99a2f05 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7ccc252536605358a2b1d9c7e9d1f3ba53946895e8d53300a5ec493ac1c554f4 [INFO] running `Command { std: "docker" "start" "-a" "7ccc252536605358a2b1d9c7e9d1f3ba53946895e8d53300a5ec493ac1c554f4", kill_on_drop: false }` [INFO] [stderr] Compiling twinkle v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::errors::*` [INFO] [stdout] --> src/listener.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use crate::errors::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::errors::*` [INFO] [stdout] --> src/request.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::errors::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/request.rs:16:34 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn issue(self) -> Result<(Packet), std::io::Error> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 16 - pub fn issue(self) -> Result<(Packet), std::io::Error> { [INFO] [stdout] 16 + pub fn issue(self) -> Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::errors::*` [INFO] [stdout] --> src/packet.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use crate::errors::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future::join` [INFO] [stdout] --> src/lib.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | use futures::future::join; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::time::timeout` [INFO] [stdout] --> src/lib.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | use tokio::time::timeout; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/lib.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | use std::time::{Duration}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ErrorKind` and `Error` [INFO] [stdout] --> src/lib.rs:44:15 [INFO] [stdout] | [INFO] [stdout] 44 | use std::io::{Error, ErrorKind}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `TIMEOUT` is never used [INFO] [stdout] --> src/types.rs:15:11 [INFO] [stdout] | [INFO] [stdout] 15 | pub const TIMEOUT: Duration = Duration::from_secs(1); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TwinkleError` is never used [INFO] [stdout] --> src/errors.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | pub enum TwinkleError { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/dispatcher.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | sock.send(&b).await; [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 15 | let _ = sock.send(&b).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::errors::*` [INFO] [stdout] --> src/listener.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use crate::errors::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::errors::*` [INFO] [stdout] --> src/request.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::errors::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/request.rs:16:34 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn issue(self) -> Result<(Packet), std::io::Error> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 16 - pub fn issue(self) -> Result<(Packet), std::io::Error> { [INFO] [stdout] 16 + pub fn issue(self) -> Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::errors::*` [INFO] [stdout] --> src/packet.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use crate::errors::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TwinkleError` is never used [INFO] [stdout] --> src/errors.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | pub enum TwinkleError { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `TIMEOUT` is never used [INFO] [stdout] --> src/types.rs:15:11 [INFO] [stdout] | [INFO] [stdout] 15 | pub const TIMEOUT: Duration = Duration::from_secs(1); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | client.unset(b"hoge".to_vec()).await; [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 71 | let _ = client.unset(b"hoge".to_vec()).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/dispatcher.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | sock.send(&b).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 15 | let _ = sock.send(&b).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:86:17 [INFO] [stdout] | [INFO] [stdout] 86 | client.set(b"fuga".to_vec(), b"foo".to_vec()).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 86 | let _ = client.set(b"fuga".to_vec(), b"foo".to_vec()).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.43s [INFO] running `Command { std: "docker" "inspect" "7ccc252536605358a2b1d9c7e9d1f3ba53946895e8d53300a5ec493ac1c554f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ccc252536605358a2b1d9c7e9d1f3ba53946895e8d53300a5ec493ac1c554f4", kill_on_drop: false }` [INFO] [stdout] 7ccc252536605358a2b1d9c7e9d1f3ba53946895e8d53300a5ec493ac1c554f4