[INFO] cloning repository https://github.com/keithyin/mini_tokio [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keithyin/mini_tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithyin%2Fmini_tokio", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithyin%2Fmini_tokio'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6350bf58752537a041381a2a4328d4d1a59efabd [INFO] testing keithyin/mini_tokio against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithyin%2Fmini_tokio" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/keithyin/mini_tokio on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/keithyin/mini_tokio [INFO] finished tweaking git repo https://github.com/keithyin/mini_tokio [INFO] tweaked toml for git repo https://github.com/keithyin/mini_tokio written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/keithyin/mini_tokio already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 694c1568ee39c9dd05c9ed900e0df6bf3499cfa4cffc4a788d243c8e8b53f214 [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" "694c1568ee39c9dd05c9ed900e0df6bf3499cfa4cffc4a788d243c8e8b53f214", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "694c1568ee39c9dd05c9ed900e0df6bf3499cfa4cffc4a788d243c8e8b53f214", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "694c1568ee39c9dd05c9ed900e0df6bf3499cfa4cffc4a788d243c8e8b53f214", kill_on_drop: false }` [INFO] [stdout] 694c1568ee39c9dd05c9ed900e0df6bf3499cfa4cffc4a788d243c8e8b53f214 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 022552254f571b94269ba9cf3f8e7c2fec82fb3b899b69ecefb67e18ad1e1b61 [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" "022552254f571b94269ba9cf3f8e7c2fec82fb3b899b69ecefb67e18ad1e1b61", kill_on_drop: false }` [INFO] [stderr] Compiling futures-core v0.3.15 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling futures-channel v0.3.15 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling futures-sink v0.3.15 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling futures-macro v0.3.15 [INFO] [stderr] Compiling futures-util v0.3.15 [INFO] [stderr] Compiling rand_core v0.6.2 [INFO] [stderr] Compiling crossbeam-epoch v0.9.4 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling crossbeam-queue v0.3.1 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling crossbeam v0.8.0 [INFO] [stderr] Compiling futures-executor v0.3.15 [INFO] [stderr] Compiling futures v0.3.15 [INFO] [stderr] Compiling mini_tokio v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand` [INFO] [stdout] --> src/static_bound_demo.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `MiniTokio` [INFO] [stdout] --> src/mini_tokio.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct MiniTokio { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `future` [INFO] [stdout] --> src/mini_tokio.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | future: Mutex + Send>>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `run` [INFO] [stdout] --> src/mini_tokio.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn run(&self) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/mini_tokio.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | fn new() -> MiniTokio { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `spawn` [INFO] [stdout] --> src/mini_tokio.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | fn spawn(&self, future: F) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `poll` [INFO] [stdout] --> src/mini_tokio.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 63 | fn poll(self: Arc) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `spawn` [INFO] [stdout] --> src/mini_tokio.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | fn spawn(future: F, sender: &channel::Sender>) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `drop_static` [INFO] [stdout] --> src/static_bound_demo.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn drop_static(t: T) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/mini_tokio.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | self.executor.send(self.clone()); [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: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 36.89s [INFO] running `Command { std: "docker" "inspect" "022552254f571b94269ba9cf3f8e7c2fec82fb3b899b69ecefb67e18ad1e1b61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "022552254f571b94269ba9cf3f8e7c2fec82fb3b899b69ecefb67e18ad1e1b61", kill_on_drop: false }` [INFO] [stdout] 022552254f571b94269ba9cf3f8e7c2fec82fb3b899b69ecefb67e18ad1e1b61 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 02cfe2241b76ff690a1f6e83daa5b67fc4c4a6e3671f5bed7c6d10a8250b1ca7 [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" "02cfe2241b76ff690a1f6e83daa5b67fc4c4a6e3671f5bed7c6d10a8250b1ca7", kill_on_drop: false }` [INFO] [stderr] Compiling mini_tokio v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand` [INFO] [stdout] --> src/static_bound_demo.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `MiniTokio` [INFO] [stdout] --> src/mini_tokio.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct MiniTokio { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `future` [INFO] [stdout] --> src/mini_tokio.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | future: Mutex + Send>>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `run` [INFO] [stdout] --> src/mini_tokio.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn run(&self) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/mini_tokio.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | fn new() -> MiniTokio { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `spawn` [INFO] [stdout] --> src/mini_tokio.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | fn spawn(&self, future: F) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `poll` [INFO] [stdout] --> src/mini_tokio.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 63 | fn poll(self: Arc) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `spawn` [INFO] [stdout] --> src/mini_tokio.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | fn spawn(future: F, sender: &channel::Sender>) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/mini_tokio.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | self.executor.send(self.clone()); [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: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.45s [INFO] running `Command { std: "docker" "inspect" "02cfe2241b76ff690a1f6e83daa5b67fc4c4a6e3671f5bed7c6d10a8250b1ca7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "02cfe2241b76ff690a1f6e83daa5b67fc4c4a6e3671f5bed7c6d10a8250b1ca7", kill_on_drop: false }` [INFO] [stdout] 02cfe2241b76ff690a1f6e83daa5b67fc4c4a6e3671f5bed7c6d10a8250b1ca7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 2d807a78ba77a936a502ddfdfb56bcfbe27ff8184ee20a2195cfd5868d8287c6 [INFO] running `Command { std: "docker" "start" "-a" "2d807a78ba77a936a502ddfdfb56bcfbe27ff8184ee20a2195cfd5868d8287c6", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused import: `rand` [INFO] [stderr] --> src/static_bound_demo.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use rand; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `MiniTokio` [INFO] [stderr] --> src/mini_tokio.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | struct MiniTokio { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `future` [INFO] [stderr] --> src/mini_tokio.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | future: Mutex + Send>>>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `run` [INFO] [stderr] --> src/mini_tokio.rs:26:8 [INFO] [stderr] | [INFO] [stderr] 26 | fn run(&self) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/mini_tokio.rs:33:8 [INFO] [stderr] | [INFO] [stderr] 33 | fn new() -> MiniTokio { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `spawn` [INFO] [stderr] --> src/mini_tokio.rs:43:8 [INFO] [stderr] | [INFO] [stderr] 43 | fn spawn(&self, future: F) [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `poll` [INFO] [stderr] --> src/mini_tokio.rs:63:8 [INFO] [stderr] | [INFO] [stderr] 63 | fn poll(self: Arc) { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `spawn` [INFO] [stderr] --> src/mini_tokio.rs:81:8 [INFO] [stderr] | [INFO] [stderr] 81 | fn spawn(future: F, sender: &channel::Sender>) [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/mini_tokio.rs:53:9 [INFO] [stderr] | [INFO] [stderr] 53 | self.executor.send(self.clone()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `mini_tokio` (bin "mini_tokio" test) generated 9 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.58s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/mini_tokio-e4cbfb1aab1e08e1) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test static_bound_demo::test::test_static_bound ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2d807a78ba77a936a502ddfdfb56bcfbe27ff8184ee20a2195cfd5868d8287c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d807a78ba77a936a502ddfdfb56bcfbe27ff8184ee20a2195cfd5868d8287c6", kill_on_drop: false }` [INFO] [stdout] 2d807a78ba77a936a502ddfdfb56bcfbe27ff8184ee20a2195cfd5868d8287c6