[INFO] cloning repository https://github.com/morokumo/tokio-tutorial [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/morokumo/tokio-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorokumo%2Ftokio-tutorial", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorokumo%2Ftokio-tutorial'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7b4201bfeb0d42ef1aa08d3a9c369444231c9fba [INFO] checking morokumo/tokio-tutorial against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorokumo%2Ftokio-tutorial" "/workspace/builds/worker-15/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/morokumo/tokio-tutorial on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/morokumo/tokio-tutorial [INFO] finished tweaking git repo https://github.com/morokumo/tokio-tutorial [INFO] tweaked toml for git repo https://github.com/morokumo/tokio-tutorial written to /workspace/builds/worker-15/source/Cargo.toml [INFO] crate git repo https://github.com/morokumo/tokio-tutorial already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tracing-log v0.1.2 [INFO] [stderr] Downloaded regex-automata v0.1.10 [INFO] [stderr] Downloaded unicode-segmentation v1.7.1 [INFO] [stderr] Downloaded tokio-stream v0.1.6 [INFO] [stderr] Downloaded sharded-slab v0.1.1 [INFO] [stderr] Downloaded async-stream v0.3.2 [INFO] [stderr] Downloaded structopt-derive v0.4.14 [INFO] [stderr] Downloaded structopt v0.3.21 [INFO] [stderr] Downloaded matchers v0.0.1 [INFO] [stderr] Downloaded tracing-attributes v0.1.15 [INFO] [stderr] Downloaded tracing-futures v0.2.5 [INFO] [stderr] Downloaded async-stream-impl v0.3.2 [INFO] [stderr] Downloaded ansi_term v0.12.1 [INFO] [stderr] Downloaded mini-redis v0.4.0 [INFO] [stderr] Downloaded thread_local v1.1.3 [INFO] [stderr] Downloaded signal-hook-registry v1.4.0 [INFO] [stderr] Downloaded libc v0.2.97 [INFO] [stderr] Downloaded atoi v0.3.3 [INFO] [stderr] Downloaded tokio v1.7.1 [INFO] [stderr] Downloaded tracing-subscriber v0.2.18 [INFO] [stderr] Downloaded tracing-serde v0.1.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cccd9180690865e7a98b6cc51cef68eb2850a8db748cf7faf5a3f466781cf149 [INFO] running `Command { std: "docker" "start" "-a" "cccd9180690865e7a98b6cc51cef68eb2850a8db748cf7faf5a3f466781cf149", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cccd9180690865e7a98b6cc51cef68eb2850a8db748cf7faf5a3f466781cf149", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cccd9180690865e7a98b6cc51cef68eb2850a8db748cf7faf5a3f466781cf149", kill_on_drop: false }` [INFO] [stdout] cccd9180690865e7a98b6cc51cef68eb2850a8db748cf7faf5a3f466781cf149 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f1693c092c473fdf7c1a3144274260a59b375e0f00c0b5589c34bbbc1b5efe68 [INFO] running `Command { std: "docker" "start" "-a" "f1693c092c473fdf7c1a3144274260a59b375e0f00c0b5589c34bbbc1b5efe68", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling libc v0.2.97 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling futures-core v0.3.15 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking log v0.4.14 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking tracing-core v0.1.18 [INFO] [stderr] Checking sharded-slab v0.1.1 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling tokio v1.7.1 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking mio v0.7.13 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking serde_json v1.0.64 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Compiling tokio-macros v1.2.0 [INFO] [stderr] Compiling pin-project-internal v1.0.7 [INFO] [stderr] Compiling async-stream-impl v0.3.2 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking async-stream v0.3.2 [INFO] [stderr] Checking tracing v0.1.26 [INFO] [stderr] Checking pin-project v1.0.7 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking tracing-subscriber v0.2.18 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking tokio-stream v0.1.6 [INFO] [stderr] Checking mini-redis v0.4.0 [INFO] [stderr] Checking tokio-tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning[E0170]: pattern binding `Incomplete` is named the same as one of the variants of the type `mini_redis::frame::Error` [INFO] [stdout] --> src/bin/connection.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | Err(Incomplete) => Ok(None), [INFO] [stdout] | ^^^^^^^^^^ help: to match on the variant, qualify the path: `mini_redis::frame::Error::Incomplete` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/bin/connection.rs:57:13 [INFO] [stdout] | [INFO] [stdout] 57 | Err(e) => Err(e.into()), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Incomplete` [INFO] [stdout] --> src/bin/connection.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | Err(Incomplete) => Ok(None), [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Incomplete` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `write_frame` [INFO] [stdout] --> src/bin/connection.rs:61:14 [INFO] [stdout] | [INFO] [stdout] 61 | async fn write_frame(&mut self, frame: &Frame) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `write_decimal` [INFO] [stdout] --> src/bin/connection.rs:96:14 [INFO] [stdout] | [INFO] [stdout] 96 | async fn write_decimal(&mut self, val: u64) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Incomplete` should have a snake case name [INFO] [stdout] --> src/bin/connection.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | Err(Incomplete) => Ok(None), [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `incomplete` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/connection.rs:91:9 [INFO] [stdout] | [INFO] [stdout] 91 | self.stream.flush().await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `Incomplete` is named the same as one of the variants of the type `mini_redis::frame::Error` [INFO] [stdout] --> src/bin/connection.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | Err(Incomplete) => Ok(None), [INFO] [stdout] | ^^^^^^^^^^ help: to match on the variant, qualify the path: `mini_redis::frame::Error::Incomplete` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/bin/connection.rs:57:13 [INFO] [stdout] | [INFO] [stdout] 57 | Err(e) => Err(e.into()), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Incomplete` [INFO] [stdout] --> src/bin/connection.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | Err(Incomplete) => Ok(None), [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Incomplete` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0170`. [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `write_frame` [INFO] [stdout] --> src/bin/connection.rs:61:14 [INFO] [stdout] | [INFO] [stdout] 61 | async fn write_frame(&mut self, frame: &Frame) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `write_decimal` [INFO] [stdout] --> src/bin/connection.rs:96:14 [INFO] [stdout] | [INFO] [stdout] 96 | async fn write_decimal(&mut self, val: u64) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Incomplete` should have a snake case name [INFO] [stdout] --> src/bin/connection.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | Err(Incomplete) => Ok(None), [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `incomplete` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/connection.rs:91:9 [INFO] [stdout] | [INFO] [stdout] 91 | self.stream.flush().await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0170`. [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 31.13s [INFO] running `Command { std: "docker" "inspect" "f1693c092c473fdf7c1a3144274260a59b375e0f00c0b5589c34bbbc1b5efe68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1693c092c473fdf7c1a3144274260a59b375e0f00c0b5589c34bbbc1b5efe68", kill_on_drop: false }` [INFO] [stdout] f1693c092c473fdf7c1a3144274260a59b375e0f00c0b5589c34bbbc1b5efe68