[INFO] cloning repository https://github.com/iberiaz9/flitton-fib-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iberiaz9/flitton-fib-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiberiaz9%2Fflitton-fib-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiberiaz9%2Fflitton-fib-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dd3a7e3fc8a9cb02e8070d918d93d9c6f1bb2b8e [INFO] checking iberiaz9/flitton-fib-rs against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiberiaz9%2Fflitton-fib-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/iberiaz9/flitton-fib-rs 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] removed /workspace/builds/worker-4-tc1/source/.cargo/config [INFO] started tweaking git repo https://github.com/iberiaz9/flitton-fib-rs [INFO] finished tweaking git repo https://github.com/iberiaz9/flitton-fib-rs [INFO] tweaked toml for git repo https://github.com/iberiaz9/flitton-fib-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/iberiaz9/flitton-fib-rs 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 parking_lot v0.11.1 [INFO] [stderr] Downloaded pyo3-macros v0.13.2 [INFO] [stderr] Downloaded indoc-impl v0.3.6 [INFO] [stderr] Downloaded unindent v0.1.7 [INFO] [stderr] Downloaded proc-macro-hack v0.5.19 [INFO] [stderr] Downloaded ctor v0.1.20 [INFO] [stderr] Downloaded inventory v0.1.10 [INFO] [stderr] Downloaded instant v0.1.10 [INFO] [stderr] Downloaded pyo3-macros-backend v0.13.2 [INFO] [stderr] Downloaded indoc v0.3.6 [INFO] [stderr] Downloaded smallvec v1.6.1 [INFO] [stderr] Downloaded syn v1.0.74 [INFO] [stderr] Downloaded pyo3 v0.13.2 [INFO] [stderr] Downloaded parking_lot_core v0.8.3 [INFO] [stderr] Downloaded libc v0.2.98 [INFO] [stderr] Downloaded ghost v0.1.2 [INFO] [stderr] Downloaded inventory-impl v0.1.10 [INFO] [stderr] Downloaded lock_api v0.4.4 [INFO] [stderr] Downloaded redox_syscall v0.2.9 [INFO] [stderr] Downloaded proc-macro2 v1.0.28 [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] 6477fdc56f31e1946fa6054c82178a663540ab7779d4962e970b85a4f445300e [INFO] running `Command { std: "docker" "start" "-a" "6477fdc56f31e1946fa6054c82178a663540ab7779d4962e970b85a4f445300e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6477fdc56f31e1946fa6054c82178a663540ab7779d4962e970b85a4f445300e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6477fdc56f31e1946fa6054c82178a663540ab7779d4962e970b85a4f445300e", kill_on_drop: false }` [INFO] [stdout] 6477fdc56f31e1946fa6054c82178a663540ab7779d4962e970b85a4f445300e [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] 0def5d4c86c62fda1b882ba0ac03c3188e12184ee6729610de51bc6d9e13c842 [INFO] running `Command { std: "docker" "start" "-a" "0def5d4c86c62fda1b882ba0ac03c3188e12184ee6729610de51bc6d9e13c842", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling unindent v0.1.7 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling inventory v0.1.10 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling pyo3 v0.13.2 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Compiling paste-impl v0.1.18 [INFO] [stderr] Checking paste v0.1.18 [INFO] [stderr] Compiling pyo3-macros-backend v0.13.2 [INFO] [stderr] Compiling inventory-impl v0.1.10 [INFO] [stderr] Compiling indoc-impl v0.3.6 [INFO] [stderr] Compiling ghost v0.1.2 [INFO] [stderr] Compiling ctor v0.1.20 [INFO] [stderr] Checking indoc v0.3.6 [INFO] [stderr] Compiling pyo3-macros v0.13.2 [INFO] [stderr] Checking flitton_fib_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/fib_calcs/fib_numbers.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/fib_calcs/fib_numbers.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | m.add_wrapped(wrap_pyfunction!(say_hello)); [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] 20 | let _ = m.add_wrapped(wrap_pyfunction!(say_hello)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | m.add_wrapped(wrap_pyfunction!(fibonacci_number)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 21 | let _ = m.add_wrapped(wrap_pyfunction!(fibonacci_number)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | m.add_wrapped(wrap_pyfunction!(fibonacci_numbers)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 22 | let _ = m.add_wrapped(wrap_pyfunction!(fibonacci_numbers)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | m.add_wrapped(wrap_pyfunction!(say_hello)); [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] 20 | let _ = m.add_wrapped(wrap_pyfunction!(say_hello)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | m.add_wrapped(wrap_pyfunction!(fibonacci_number)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 21 | let _ = m.add_wrapped(wrap_pyfunction!(fibonacci_number)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | m.add_wrapped(wrap_pyfunction!(fibonacci_numbers)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 22 | let _ = m.add_wrapped(wrap_pyfunction!(fibonacci_numbers)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.36s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: pyo3 v0.13.2, pyo3-macros-backend v0.13.2 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "0def5d4c86c62fda1b882ba0ac03c3188e12184ee6729610de51bc6d9e13c842", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0def5d4c86c62fda1b882ba0ac03c3188e12184ee6729610de51bc6d9e13c842", kill_on_drop: false }` [INFO] [stdout] 0def5d4c86c62fda1b882ba0ac03c3188e12184ee6729610de51bc6d9e13c842 [INFO] checking iberiaz9/flitton-fib-rs against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiberiaz9%2Fflitton-fib-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/iberiaz9/flitton-fib-rs 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] removed /workspace/builds/worker-4-tc2/source/.cargo/config [INFO] started tweaking git repo https://github.com/iberiaz9/flitton-fib-rs [INFO] finished tweaking git repo https://github.com/iberiaz9/flitton-fib-rs [INFO] tweaked toml for git repo https://github.com/iberiaz9/flitton-fib-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/iberiaz9/flitton-fib-rs 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] 276d794592850c1a5e994d55e72d62ac3262002b51491e96a809fb98937fff4d [INFO] running `Command { std: "docker" "start" "-a" "276d794592850c1a5e994d55e72d62ac3262002b51491e96a809fb98937fff4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "276d794592850c1a5e994d55e72d62ac3262002b51491e96a809fb98937fff4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "276d794592850c1a5e994d55e72d62ac3262002b51491e96a809fb98937fff4d", kill_on_drop: false }` [INFO] [stdout] 276d794592850c1a5e994d55e72d62ac3262002b51491e96a809fb98937fff4d [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] e9d05fbb2089e030700ce28516dbf8ef3441e0e77ecdf4b29900a5135ad29219 [INFO] running `Command { std: "docker" "start" "-a" "e9d05fbb2089e030700ce28516dbf8ef3441e0e77ecdf4b29900a5135ad29219", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling unindent v0.1.7 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling inventory v0.1.10 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling pyo3 v0.13.2 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Compiling paste-impl v0.1.18 [INFO] [stderr] Checking paste v0.1.18 [INFO] [stderr] Compiling pyo3-macros-backend v0.13.2 [INFO] [stderr] Compiling indoc-impl v0.3.6 [INFO] [stderr] Compiling ghost v0.1.2 [INFO] [stderr] Compiling inventory-impl v0.1.10 [INFO] [stderr] Compiling ctor v0.1.20 [INFO] [stderr] Checking indoc v0.3.6 [INFO] [stderr] Compiling pyo3-macros v0.13.2 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/pyo3-0.13.2/src/ffi/object.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | panic!(); [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [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 `pyo3` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "e9d05fbb2089e030700ce28516dbf8ef3441e0e77ecdf4b29900a5135ad29219", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9d05fbb2089e030700ce28516dbf8ef3441e0e77ecdf4b29900a5135ad29219", kill_on_drop: false }` [INFO] [stdout] e9d05fbb2089e030700ce28516dbf8ef3441e0e77ecdf4b29900a5135ad29219