[INFO] fetching crate futex-queue 0.1.1... [INFO] checking futex-queue-0.1.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate futex-queue 0.1.1 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate futex-queue 0.1.1 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 crates.io crate futex-queue 0.1.1 [INFO] finished tweaking crates.io crate futex-queue 0.1.1 [INFO] tweaked toml for crates.io crate futex-queue 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate futex-queue 0.1.1 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded embedded-hal v0.2.6 [INFO] [stderr] Downloaded spin v0.9.2 [INFO] [stderr] Downloaded linux-futex v0.1.1 [INFO] [stderr] Downloaded heapless v0.7.7 [INFO] [stderr] Downloaded cortex-m v0.7.3 [INFO] [stderr] Downloaded libc v0.2.102 [INFO] [stderr] Downloaded atomic-polyfill v0.1.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1921094d6ab77ffe5bece3820035214fffba861f16be0999381089bd7c1cd384 [INFO] running `Command { std: "docker" "start" "-a" "1921094d6ab77ffe5bece3820035214fffba861f16be0999381089bd7c1cd384", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1921094d6ab77ffe5bece3820035214fffba861f16be0999381089bd7c1cd384", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1921094d6ab77ffe5bece3820035214fffba861f16be0999381089bd7c1cd384", kill_on_drop: false }` [INFO] [stdout] 1921094d6ab77ffe5bece3820035214fffba861f16be0999381089bd7c1cd384 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7f1f0f385cf9837ac13253e56ed3e06443805b410734e2f8aa57d75adc559217 [INFO] running `Command { std: "docker" "start" "-a" "7f1f0f385cf9837ac13253e56ed3e06443805b410734e2f8aa57d75adc559217", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.102 [INFO] [stderr] Checking lock_api v0.4.5 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling heapless v0.7.7 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Checking spin v0.9.2 [INFO] [stderr] Checking linux-futex v0.1.1 [INFO] [stderr] Checking futex-queue v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.92s [INFO] running `Command { std: "docker" "inspect" "7f1f0f385cf9837ac13253e56ed3e06443805b410734e2f8aa57d75adc559217", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f1f0f385cf9837ac13253e56ed3e06443805b410734e2f8aa57d75adc559217", kill_on_drop: false }` [INFO] [stdout] 7f1f0f385cf9837ac13253e56ed3e06443805b410734e2f8aa57d75adc559217 [INFO] checking futex-queue-0.1.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate futex-queue 0.1.1 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate futex-queue 0.1.1 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 crates.io crate futex-queue 0.1.1 [INFO] finished tweaking crates.io crate futex-queue 0.1.1 [INFO] tweaked toml for crates.io crate futex-queue 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate futex-queue 0.1.1 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e0819a75477923a6517d8eae243ab4bc6e6133260e076dbea92543d0ac1fb1dc [INFO] running `Command { std: "docker" "start" "-a" "e0819a75477923a6517d8eae243ab4bc6e6133260e076dbea92543d0ac1fb1dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e0819a75477923a6517d8eae243ab4bc6e6133260e076dbea92543d0ac1fb1dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0819a75477923a6517d8eae243ab4bc6e6133260e076dbea92543d0ac1fb1dc", kill_on_drop: false }` [INFO] [stdout] e0819a75477923a6517d8eae243ab4bc6e6133260e076dbea92543d0ac1fb1dc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 60bd4ed9771c59832a305ee6f66f42bcf820f9b7a7769f9ec300f91fdfcca74f [INFO] running `Command { std: "docker" "start" "-a" "60bd4ed9771c59832a305ee6f66f42bcf820f9b7a7769f9ec300f91fdfcca74f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.102 [INFO] [stderr] Checking lock_api v0.4.5 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling heapless v0.7.7 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Checking spin v0.9.2 [INFO] [stderr] Checking linux-futex v0.1.1 [INFO] [stderr] Checking futex-queue v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0283]: type annotations needed for `JoinHandle` [INFO] [stdout] --> examples/simple.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let thread = thread::spawn(move || loop { [INFO] [stdout] | _________^^^^^^___- [INFO] [stdout] 12 | | let item = rx.recv(); [INFO] [stdout] 13 | | println!( [INFO] [stdout] 14 | | "{} ms: Received: {}", [INFO] [stdout] ... | [INFO] [stdout] 17 | | ); [INFO] [stdout] 18 | | }); [INFO] [stdout] | |______- type must be known at this point [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: Send` [INFO] [stdout] note: required by a bound in `spawn` [INFO] [stdout] --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1 [INFO] [stdout] help: consider giving `thread` an explicit type, where the type for type parameter `T` is specified [INFO] [stdout] | [INFO] [stdout] 11 | let thread: JoinHandle = thread::spawn(move || loop { [INFO] [stdout] | +++++++++++++++ [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 E0283`. [INFO] [stdout] [INFO] [stderr] error: could not compile `futex-queue` (example "simple") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "60bd4ed9771c59832a305ee6f66f42bcf820f9b7a7769f9ec300f91fdfcca74f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "60bd4ed9771c59832a305ee6f66f42bcf820f9b7a7769f9ec300f91fdfcca74f", kill_on_drop: false }` [INFO] [stdout] 60bd4ed9771c59832a305ee6f66f42bcf820f9b7a7769f9ec300f91fdfcca74f