[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] 5d22a66b8ac5f4b9a8556b07d8e5d83f018fd270 [INFO] checking keithyin/mini_tokio against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithyin%2Fmini_tokio" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/keithyin/mini_tokio on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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-3-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crossbeam v0.8.0 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0f9a5513c5cffc6d018c420cae7dbaead0858ab7cc15d3806ac1330fef6c3b45 [INFO] running `Command { std: "docker" "start" "-a" "0f9a5513c5cffc6d018c420cae7dbaead0858ab7cc15d3806ac1330fef6c3b45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0f9a5513c5cffc6d018c420cae7dbaead0858ab7cc15d3806ac1330fef6c3b45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f9a5513c5cffc6d018c420cae7dbaead0858ab7cc15d3806ac1330fef6c3b45", kill_on_drop: false }` [INFO] [stdout] 0f9a5513c5cffc6d018c420cae7dbaead0858ab7cc15d3806ac1330fef6c3b45 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4e4dc24aab8665a29f60d776092665054054afd7ed0064d9bc66fa5c2d4a679f [INFO] running `Command { std: "docker" "start" "-a" "4e4dc24aab8665a29f60d776092665054054afd7ed0064d9bc66fa5c2d4a679f", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking crossbeam-epoch v0.9.4 [INFO] [stderr] Checking crossbeam-queue v0.3.1 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking crossbeam v0.8.0 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Compiling futures-macro v0.3.15 [INFO] [stderr] Checking futures-util v0.3.15 [INFO] [stderr] Checking futures-executor v0.3.15 [INFO] [stderr] Checking futures v0.3.15 [INFO] [stderr] Checking 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: 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 `MiniTokio` is never constructed [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 `future` is never read [INFO] [stdout] --> src/mini_tokio.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Task { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 21 | future: Mutex + Send>>>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `run`, `new`, and `spawn` are never used [INFO] [stdout] --> src/mini_tokio.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 25 | impl MiniTokio { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 26 | fn run(&self) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn new() -> MiniTokio { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn spawn(&self, future: F) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `poll` and `spawn` are never used [INFO] [stdout] --> src/mini_tokio.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 62 | impl Task { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 63 | fn poll(self: Arc) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 81 | fn spawn(future: F, sender: &channel::Sender>) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `drop_static` is never used [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: struct `MiniTokio` is never constructed [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 `future` is never read [INFO] [stdout] --> src/mini_tokio.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Task { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 21 | future: Mutex + Send>>>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `run`, `new`, and `spawn` are never used [INFO] [stdout] --> src/mini_tokio.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 25 | impl MiniTokio { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 26 | fn run(&self) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn new() -> MiniTokio { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn spawn(&self, future: F) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `poll` and `spawn` are never used [INFO] [stdout] --> src/mini_tokio.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 62 | impl Task { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 63 | fn poll(self: Arc) { [INFO] [stdout] | ^^^^ [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: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 53 | let _ = self.executor.send(self.clone()); [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: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 53 | let _ = self.executor.send(self.clone()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `testBoxPin` should have a snake case name [INFO] [stdout] --> src/mini_tokio.rs:100:8 [INFO] [stdout] | [INFO] [stdout] 100 | fn testBoxPin() { [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `test_box_pin` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.62s [INFO] running `Command { std: "docker" "inspect" "4e4dc24aab8665a29f60d776092665054054afd7ed0064d9bc66fa5c2d4a679f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e4dc24aab8665a29f60d776092665054054afd7ed0064d9bc66fa5c2d4a679f", kill_on_drop: false }` [INFO] [stdout] 4e4dc24aab8665a29f60d776092665054054afd7ed0064d9bc66fa5c2d4a679f [INFO] checking keithyin/mini_tokio against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithyin%2Fmini_tokio" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/keithyin/mini_tokio on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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-3-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fe1c4d0fdb8964639f84a0ac7baeeb6d6d4d6a1e8e3a1ef9334cc4e6ecba6343 [INFO] running `Command { std: "docker" "start" "-a" "fe1c4d0fdb8964639f84a0ac7baeeb6d6d4d6a1e8e3a1ef9334cc4e6ecba6343", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fe1c4d0fdb8964639f84a0ac7baeeb6d6d4d6a1e8e3a1ef9334cc4e6ecba6343", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe1c4d0fdb8964639f84a0ac7baeeb6d6d4d6a1e8e3a1ef9334cc4e6ecba6343", kill_on_drop: false }` [INFO] [stdout] fe1c4d0fdb8964639f84a0ac7baeeb6d6d4d6a1e8e3a1ef9334cc4e6ecba6343 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c607b8f40b9a54c019eda9acc5835b7779f845784bd252d774849389255dc7d7 [INFO] running `Command { std: "docker" "start" "-a" "c607b8f40b9a54c019eda9acc5835b7779f845784bd252d774849389255dc7d7", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling futures-core v0.3.15 [INFO] [stderr] Compiling futures-macro v0.3.15 [INFO] [stderr] Compiling futures-channel v0.3.15 [INFO] [stderr] Compiling futures-task v0.3.15 [INFO] [stderr] Checking futures-sink v0.3.15 [INFO] [stderr] Compiling futures-util v0.3.15 [INFO] [stderr] Checking futures-io v0.3.15 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-utils-0.8.4/src/sync/parker.rs:364:25 [INFO] [stdout] | [INFO] [stdout] 364 | / match self.state.swap(EMPTY, SeqCst) { [INFO] [stdout] 365 | | NOTIFIED | PARKED => return, [INFO] [stdout] 366 | | n => panic!("inconsistent park_timeout state: {}", n), [INFO] [stdout] 367 | | }; [INFO] [stdout] | |_________________________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `crossbeam-utils` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "c607b8f40b9a54c019eda9acc5835b7779f845784bd252d774849389255dc7d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c607b8f40b9a54c019eda9acc5835b7779f845784bd252d774849389255dc7d7", kill_on_drop: false }` [INFO] [stdout] c607b8f40b9a54c019eda9acc5835b7779f845784bd252d774849389255dc7d7