[INFO] cloning repository https://github.com/CandySunPlus/rust-async-study-kit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CandySunPlus/rust-async-study-kit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCandySunPlus%2Frust-async-study-kit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCandySunPlus%2Frust-async-study-kit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc80dce9dfcfa30ed80bf54d5685731e7e5bf29f
[INFO] checking CandySunPlus/rust-async-study-kit against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCandySunPlus%2Frust-async-study-kit" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CandySunPlus/rust-async-study-kit
[INFO] finished tweaking git repo https://github.com/CandySunPlus/rust-async-study-kit
[INFO] tweaked toml for git repo https://github.com/CandySunPlus/rust-async-study-kit written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CandySunPlus/rust-async-study-kit on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CandySunPlus/rust-async-study-kit 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded concurrent-queue v2.1.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.52
[INFO] [stderr]   Downloaded socket2 v0.5.1
[INFO] [stderr]   Downloaded futures-task v0.3.27
[INFO] [stderr]   Downloaded futures-macro v0.3.27
[INFO] [stderr]   Downloaded futures-sink v0.3.27
[INFO] [stderr]   Downloaded executor v0.8.4
[INFO] [stderr]   Downloaded futures-core v0.3.27
[INFO] [stderr]   Downloaded futures-io v0.3.27
[INFO] [stderr]   Downloaded woke v0.0.4
[INFO] [stderr]   Downloaded blocking v1.3.0
[INFO] [stderr]   Downloaded atomic-waker v1.1.0
[INFO] [stderr]   Downloaded futures-channel v0.3.27
[INFO] [stderr]   Downloaded async-io v1.12.0
[INFO] [stderr]   Downloaded futures v0.3.27
[INFO] [stderr]   Downloaded spin v0.9.6
[INFO] [stderr]   Downloaded polling v2.6.0
[INFO] [stderr]   Downloaded futures-executor v0.3.27
[INFO] [stderr]   Downloaded futures-util v0.3.27
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2165834bb73d041149155d7bee8a893b82f23432bec258c81d6b249a3fd7f45
[INFO] running `Command { std: "docker" "start" "-a" "f2165834bb73d041149155d7bee8a893b82f23432bec258c81d6b249a3fd7f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2165834bb73d041149155d7bee8a893b82f23432bec258c81d6b249a3fd7f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2165834bb73d041149155d7bee8a893b82f23432bec258c81d6b249a3fd7f45", kill_on_drop: false }`
[INFO] [stdout] f2165834bb73d041149155d7bee8a893b82f23432bec258c81d6b249a3fd7f45
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb26ef7c1944fdd68cc8c3ea922aebbc0e77ef5c252ba1ed18bf73b8d4c8ffad
[INFO] running `Command { std: "docker" "start" "-a" "fb26ef7c1944fdd68cc8c3ea922aebbc0e77ef5c252ba1ed18bf73b8d4c8ffad", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]     Checking futures-io v0.3.27
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]     Checking futures-sink v0.3.27
[INFO] [stderr]    Compiling polling v2.6.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]     Checking concurrent-queue v2.1.0
[INFO] [stderr]     Checking async-lock v2.7.0
[INFO] [stderr]     Checking socket2 v0.5.1
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]    Compiling async-io v1.12.0
[INFO] [stderr]     Checking atomic-waker v1.1.0
[INFO] [stderr]     Checking async-task v4.3.0
[INFO] [stderr]     Checking spin v0.9.6
[INFO] [stderr]     Checking woke v0.0.4
[INFO] [stderr]     Checking executor v0.8.4
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking async-channel v1.8.0
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking blocking v1.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.27
[INFO] [stderr]     Checking futures-executor v0.3.27
[INFO] [stderr]     Checking futures v0.3.27
[INFO] [stderr]     Checking custom-async v0.1.0 (/opt/rustwide/workdir/custom-async)
[INFO] [stderr]     Checking simple-executor v0.1.0 (/opt/rustwide/workdir/simple-executor)
[INFO] [stderr]     Checking simple-runtime v0.1.0 (/opt/rustwide/workdir/simple-runtime)
[INFO] [stderr]     Checking slow-read v0.1.0 (/opt/rustwide/workdir/slow-read)
[INFO] [stdout] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stdout]   --> simple-executor/src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     best_executor::spawn(async {
[INFO] [stdout] 18 | |         let start = Instant::now();
[INFO] [stdout] 19 | |         println!("best executor start: {:.2}", start.elapsed().as_secs_f32());
[INFO] [stdout] 20 | |         TimerFuture::new(Duration::from_secs(5)).await;
[INFO] [stdout] 21 | |         println!("best executor end: {:.2}", start.elapsed().as_secs_f32());
[INFO] [stdout] 22 | |     });
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stdout]   --> simple-executor/src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     best_executor::spawn(async {
[INFO] [stdout] 18 | |         let start = Instant::now();
[INFO] [stdout] 19 | |         println!("best executor start: {:.2}", start.elapsed().as_secs_f32());
[INFO] [stdout] 20 | |         TimerFuture::new(Duration::from_secs(5)).await;
[INFO] [stdout] 21 | |         println!("best executor end: {:.2}", start.elapsed().as_secs_f32());
[INFO] [stdout] 22 | |     });
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.76s
[INFO] running `Command { std: "docker" "inspect" "fb26ef7c1944fdd68cc8c3ea922aebbc0e77ef5c252ba1ed18bf73b8d4c8ffad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb26ef7c1944fdd68cc8c3ea922aebbc0e77ef5c252ba1ed18bf73b8d4c8ffad", kill_on_drop: false }`
[INFO] [stdout] fb26ef7c1944fdd68cc8c3ea922aebbc0e77ef5c252ba1ed18bf73b8d4c8ffad
