[INFO] cloning repository https://github.com/ymgyt/mini-redis-handson [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ymgyt/mini-redis-handson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fymgyt%2Fmini-redis-handson", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fymgyt%2Fmini-redis-handson'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5f5e5ee9b02724746ffdad20ab655a22a2d8ebf6 [INFO] testing ymgyt/mini-redis-handson against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fymgyt%2Fmini-redis-handson" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ymgyt/mini-redis-handson on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ymgyt/mini-redis-handson [INFO] finished tweaking git repo https://github.com/ymgyt/mini-redis-handson [INFO] tweaked toml for git repo https://github.com/ymgyt/mini-redis-handson written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/ymgyt/mini-redis-handson already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5c80c732136833d846a6907b321a49abfbe62d20f3fa0551688095ba6d1024cb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5c80c732136833d846a6907b321a49abfbe62d20f3fa0551688095ba6d1024cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5c80c732136833d846a6907b321a49abfbe62d20f3fa0551688095ba6d1024cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c80c732136833d846a6907b321a49abfbe62d20f3fa0551688095ba6d1024cb", kill_on_drop: false }` [INFO] [stdout] 5c80c732136833d846a6907b321a49abfbe62d20f3fa0551688095ba6d1024cb [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b738a044b9a6b16bd0772ea44cadb7c953b400304552b8144ba7cbefb5d4612d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "b738a044b9a6b16bd0772ea44cadb7c953b400304552b8144ba7cbefb5d4612d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.21 [INFO] [stderr] Compiling syn v1.0.40 [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling futures-core v0.3.6 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Compiling futures-sink v0.3.6 [INFO] [stderr] Compiling once_cell v1.4.1 [INFO] [stderr] Compiling futures-io v0.3.6 [INFO] [stderr] Compiling bytes v0.6.0 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Compiling crossbeam-channel v0.4.4 [INFO] [stderr] Compiling futures-channel v0.3.6 [INFO] [stderr] Compiling futures-task v0.3.6 [INFO] [stderr] Compiling crossbeam v0.7.3 [INFO] [stderr] Compiling tracing-log v0.1.1 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling parking_lot_core v0.8.0 [INFO] [stderr] Compiling signal-hook-registry v1.2.1 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling mio v0.7.4 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling parking_lot v0.11.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling atoi v0.3.2 [INFO] [stderr] Compiling matchers v0.0.1 [INFO] [stderr] Compiling chrono v0.4.15 [INFO] [stderr] Compiling tracing-serde v0.1.2 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Compiling tracing-subscriber v0.2.12 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling pin-project-internal v0.4.23 [INFO] [stderr] Compiling futures-macro v0.3.6 [INFO] [stderr] Compiling tracing-attributes v0.1.11 [INFO] [stderr] Compiling structopt-derive v0.4.10 [INFO] [stderr] Compiling async-stream-impl v0.2.1 [INFO] [stderr] Compiling tokio-macros v0.3.0 [INFO] [stderr] Compiling tokio v0.3.1 [INFO] [stderr] Compiling async-stream v0.2.1 [INFO] [stderr] Compiling tracing v0.1.19 [INFO] [stderr] Compiling structopt v0.3.17 [INFO] [stderr] Compiling pin-project v0.4.23 [INFO] [stderr] Compiling futures-util v0.3.6 [INFO] [stderr] Compiling tracing-futures v0.2.4 [INFO] [stderr] Compiling mini-redis v0.3.0 [INFO] [stderr] Compiling futures-executor v0.3.6 [INFO] [stderr] Compiling futures v0.3.6 [INFO] [stderr] Compiling my-redis v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let mut listener = TcpListener::bind("127.0.0.1:6379").await.unwrap(); [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 26s [INFO] running `Command { std: "docker" "inspect" "b738a044b9a6b16bd0772ea44cadb7c953b400304552b8144ba7cbefb5d4612d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b738a044b9a6b16bd0772ea44cadb7c953b400304552b8144ba7cbefb5d4612d", kill_on_drop: false }` [INFO] [stdout] b738a044b9a6b16bd0772ea44cadb7c953b400304552b8144ba7cbefb5d4612d [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1a10a74bbcbad426ceaf9f0aafc744db04a75210263b3c4dd3c2fb16e4b662a8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1a10a74bbcbad426ceaf9f0aafc744db04a75210263b3c4dd3c2fb16e4b662a8", kill_on_drop: false }` [INFO] [stderr] Compiling my-redis v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> examples/stream.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | let (mut tx, mut rx) = mpsc::channel(10); [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let mut listener = TcpListener::bind("127.0.0.1:6379").await.unwrap(); [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: variable does not need to be mutable [INFO] [stdout] --> examples/hello-redis.rs:23:10 [INFO] [stdout] | [INFO] [stdout] 23 | let (mut tx, mut rx) = mpsc::channel(32); [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: variable does not need to be mutable [INFO] [stdout] --> examples/hello-redis.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let mut tx2 = tx.clone(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 16.54s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/my_redis-1c519c12b1e1f3c1) [INFO] running `Command { std: "docker" "inspect" "1a10a74bbcbad426ceaf9f0aafc744db04a75210263b3c4dd3c2fb16e4b662a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a10a74bbcbad426ceaf9f0aafc744db04a75210263b3c4dd3c2fb16e4b662a8", kill_on_drop: false }` [INFO] [stdout] 1a10a74bbcbad426ceaf9f0aafc744db04a75210263b3c4dd3c2fb16e4b662a8 [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b61903f22c080e3ef57633b082abe417ab3907f1826b66cb6de250054fda37a2 [INFO] running `Command { std: "docker" "start" "-a" "b61903f22c080e3ef57633b082abe417ab3907f1826b66cb6de250054fda37a2", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/stream.rs:10:10 [INFO] [stderr] | [INFO] [stderr] 10 | let (mut tx, mut rx) = mpsc::channel(10); [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: variable does not need to be mutable [INFO] [stderr] --> examples/hello-redis.rs:23:10 [INFO] [stderr] | [INFO] [stderr] 23 | let (mut tx, mut rx) = mpsc::channel(32); [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: variable does not need to be mutable [INFO] [stderr] --> examples/hello-redis.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | let mut tx2 = tx.clone(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let mut listener = TcpListener::bind("127.0.0.1:6379").await.unwrap(); [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: `my-redis` (example "stream") generated 1 warning [INFO] [stderr] warning: `my-redis` (example "hello-redis") generated 2 warnings [INFO] [stderr] warning: `my-redis` (bin "my-redis" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.21s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/my_redis-1c519c12b1e1f3c1) [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" "b61903f22c080e3ef57633b082abe417ab3907f1826b66cb6de250054fda37a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b61903f22c080e3ef57633b082abe417ab3907f1826b66cb6de250054fda37a2", kill_on_drop: false }` [INFO] [stdout] b61903f22c080e3ef57633b082abe417ab3907f1826b66cb6de250054fda37a2