[INFO] fetching crate jsona-openapi-cli 0.2.1... [INFO] checking jsona-openapi-cli-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate jsona-openapi-cli 0.2.1 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate jsona-openapi-cli 0.2.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate jsona-openapi-cli 0.2.1 [INFO] finished tweaking crates.io crate jsona-openapi-cli 0.2.1 [INFO] tweaked toml for crates.io crate jsona-openapi-cli 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate crates.io crate jsona-openapi-cli 0.2.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded jsona v0.2.0 [INFO] [stderr] Downloaded unicode-normalization v0.1.17 [INFO] [stderr] Downloaded jsona_openapi_spec v0.1.7 [INFO] [stderr] Downloaded url v2.2.1 [INFO] [stderr] Downloaded syn v1.0.70 [INFO] [stderr] Downloaded jsona-openapi v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 841f3c3092dee1332d2d977d27c78ec32e014e25a93cb18af17637a9b58f635a [INFO] running `Command { std: "docker" "start" "-a" "841f3c3092dee1332d2d977d27c78ec32e014e25a93cb18af17637a9b58f635a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "841f3c3092dee1332d2d977d27c78ec32e014e25a93cb18af17637a9b58f635a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "841f3c3092dee1332d2d977d27c78ec32e014e25a93cb18af17637a9b58f635a", kill_on_drop: false }` [INFO] [stdout] 841f3c3092dee1332d2d977d27c78ec32e014e25a93cb18af17637a9b58f635a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 15ca97c5aa51987a4a4d44b5d80b05c44eb9e28f9de2752ef851a1606fe92c12 [INFO] running `Command { std: "docker" "start" "-a" "15ca97c5aa51987a4a4d44b5d80b05c44eb9e28f9de2752ef851a1606fe92c12", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.70 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Compiling anyhow v1.0.40 [INFO] [stderr] Checking dtoa v0.4.8 [INFO] [stderr] Checking tinyvec v1.2.0 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Checking unicode-bidi v0.3.5 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking unicode-normalization v0.1.17 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking url v2.2.1 [INFO] [stderr] Checking serde_yaml v0.8.17 [INFO] [stderr] Checking jsona_openapi_spec v0.1.7 [INFO] [stderr] Checking jsona v0.2.0 [INFO] [stderr] Checking jsona-openapi v0.2.1 [INFO] [stderr] Checking jsona-openapi-cli v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.99s [INFO] running `Command { std: "docker" "inspect" "15ca97c5aa51987a4a4d44b5d80b05c44eb9e28f9de2752ef851a1606fe92c12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15ca97c5aa51987a4a4d44b5d80b05c44eb9e28f9de2752ef851a1606fe92c12", kill_on_drop: false }` [INFO] [stdout] 15ca97c5aa51987a4a4d44b5d80b05c44eb9e28f9de2752ef851a1606fe92c12 [INFO] checking jsona-openapi-cli-0.2.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate jsona-openapi-cli 0.2.1 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate jsona-openapi-cli 0.2.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate jsona-openapi-cli 0.2.1 [INFO] finished tweaking crates.io crate jsona-openapi-cli 0.2.1 [INFO] tweaked toml for crates.io crate jsona-openapi-cli 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate jsona-openapi-cli 0.2.1 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e88d19afeca193d3015f4e3a5b36f6745b0b2fa0c5b79b68742b60a614ef2b85 [INFO] running `Command { std: "docker" "start" "-a" "e88d19afeca193d3015f4e3a5b36f6745b0b2fa0c5b79b68742b60a614ef2b85", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e88d19afeca193d3015f4e3a5b36f6745b0b2fa0c5b79b68742b60a614ef2b85", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e88d19afeca193d3015f4e3a5b36f6745b0b2fa0c5b79b68742b60a614ef2b85", kill_on_drop: false }` [INFO] [stdout] e88d19afeca193d3015f4e3a5b36f6745b0b2fa0c5b79b68742b60a614ef2b85 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e3ce9023a9900f54b2a1505016915df49ad10ac7ad3e3df4f011d454eedc9857 [INFO] running `Command { std: "docker" "start" "-a" "e3ce9023a9900f54b2a1505016915df49ad10ac7ad3e3df4f011d454eedc9857", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.70 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Compiling anyhow v1.0.40 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking dtoa v0.4.8 [INFO] [stderr] Checking tinyvec v1.2.0 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Checking unicode-bidi v0.3.5 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking unicode-normalization v0.1.17 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking url v2.2.1 [INFO] [stderr] Checking serde_yaml v0.8.17 [INFO] [stderr] Checking jsona_openapi_spec v0.1.7 [INFO] [stderr] Checking jsona v0.2.0 [INFO] [stderr] Checking jsona-openapi v0.2.1 [INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/jsona-openapi-0.2.1/src/loader.rs:33:32 [INFO] [stdout] | [INFO] [stdout] 33 | .collect::>()?; [INFO] [stdout] | ------- ^^^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator<()>` is not implemented for `!`, which is required by `std::result::Result<_, error::Error>: FromIterator>` [INFO] [stdout] = help: the trait `FromIterator>` is implemented for `std::result::Result` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #48950 for more information) [INFO] [stdout] = help: did you intend to use the type `()` here instead? [INFO] [stdout] = note: required for `std::result::Result` to implement `FromIterator>` [INFO] [stdout] note: required by a bound in `collect` [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/core/src/iter/traits/iterator.rs:1999:5 [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 E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `jsona-openapi` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "e3ce9023a9900f54b2a1505016915df49ad10ac7ad3e3df4f011d454eedc9857", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3ce9023a9900f54b2a1505016915df49ad10ac7ad3e3df4f011d454eedc9857", kill_on_drop: false }` [INFO] [stdout] e3ce9023a9900f54b2a1505016915df49ad10ac7ad3e3df4f011d454eedc9857