[INFO] fetching crate jtd-derive 0.1.3... [INFO] checking jtd-derive-0.1.3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate jtd-derive 0.1.3 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate jtd-derive 0.1.3 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 jtd-derive 0.1.3 [INFO] finished tweaking crates.io crate jtd-derive 0.1.3 [INFO] tweaked toml for crates.io crate jtd-derive 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 38 packages [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding jtd-derive-macros v0.1.3 (latest: v0.1.4) [INFO] [stderr] Adding serde_derive_internals v0.26.0 (latest: v0.29.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [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 jtd-derive-macros v0.1.3 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0dbb8eb3e0aff404ef28c6e2fe98e6c7871985da0a4cca13a32dd5fb238a3ca3 [INFO] running `Command { std: "docker" "start" "-a" "0dbb8eb3e0aff404ef28c6e2fe98e6c7871985da0a4cca13a32dd5fb238a3ca3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0dbb8eb3e0aff404ef28c6e2fe98e6c7871985da0a4cca13a32dd5fb238a3ca3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0dbb8eb3e0aff404ef28c6e2fe98e6c7871985da0a4cca13a32dd5fb238a3ca3", kill_on_drop: false }` [INFO] [stdout] 0dbb8eb3e0aff404ef28c6e2fe98e6c7871985da0a4cca13a32dd5fb238a3ca3 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0382f7c6230e4f23b07e7839456c4cc84fd657e210b407de672d85330a96d9a6 [INFO] running `Command { std: "docker" "start" "-a" "0382f7c6230e4f23b07e7839456c4cc84fd657e210b407de672d85330a96d9a6", kill_on_drop: false }` [INFO] [stderr] Compiling either v1.10.0 [INFO] [stderr] Compiling serde_derive_internals v0.26.0 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Checking toml_datetime v0.6.5 [INFO] [stderr] Checking serde_spanned v0.6.5 [INFO] [stderr] Checking toml_edit v0.22.9 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Checking toml v0.8.12 [INFO] [stderr] Compiling jtd-derive-macros v0.1.3 [INFO] [stderr] Checking trybuild v1.0.91 [INFO] [stderr] Checking jtd-derive v0.1.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.08s [INFO] running `Command { std: "docker" "inspect" "0382f7c6230e4f23b07e7839456c4cc84fd657e210b407de672d85330a96d9a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0382f7c6230e4f23b07e7839456c4cc84fd657e210b407de672d85330a96d9a6", kill_on_drop: false }` [INFO] [stdout] 0382f7c6230e4f23b07e7839456c4cc84fd657e210b407de672d85330a96d9a6 [INFO] checking jtd-derive-0.1.3 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate jtd-derive 0.1.3 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate jtd-derive 0.1.3 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 jtd-derive 0.1.3 [INFO] finished tweaking crates.io crate jtd-derive 0.1.3 [INFO] tweaked toml for crates.io crate jtd-derive 0.1.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [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-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ab0b4651428abbdc3864aedadafe53c1064f1512fcd885e72f89f9d387d67792 [INFO] running `Command { std: "docker" "start" "-a" "ab0b4651428abbdc3864aedadafe53c1064f1512fcd885e72f89f9d387d67792", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ab0b4651428abbdc3864aedadafe53c1064f1512fcd885e72f89f9d387d67792", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab0b4651428abbdc3864aedadafe53c1064f1512fcd885e72f89f9d387d67792", kill_on_drop: false }` [INFO] [stdout] ab0b4651428abbdc3864aedadafe53c1064f1512fcd885e72f89f9d387d67792 [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] df01950df0aeba623f84636226c66aabcc4646cbb36446a61ad345754d8c5467 [INFO] running `Command { std: "docker" "start" "-a" "df01950df0aeba623f84636226c66aabcc4646cbb36446a61ad345754d8c5467", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling either v1.10.0 [INFO] [stderr] Checking toml_datetime v0.6.5 [INFO] [stderr] Checking serde_spanned v0.6.5 [INFO] [stderr] Checking toml_edit v0.22.9 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Checking toml v0.8.12 [INFO] [stderr] Checking trybuild v1.0.91 [INFO] [stderr] Compiling serde_derive_internals v0.26.0 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Compiling jtd-derive-macros v0.1.3 [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/jtd-derive-macros-0.1.3/src/derive/context/container.rs:204:14 [INFO] [stdout] | [INFO] [stdout] 204 | .collect_fallible()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect_fallible` [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: std::default::Default` [INFO] [stdout] note: required by a bound in `IterExt::collect_fallible` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/jtd-derive-macros-0.1.3/src/iter_ext.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 4 | fn collect_fallible(self) -> Result [INFO] [stdout] | ---------------- required by a bound in this associated function [INFO] [stdout] 5 | where [INFO] [stdout] 6 | B: Default + Extend; [INFO] [stdout] | ^^^^^^^ required by this bound in `IterExt::collect_fallible` [INFO] [stdout] help: consider specifying the generic argument [INFO] [stdout] | [INFO] [stdout] 204 | .collect_fallible::()?; [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/jtd-derive-macros-0.1.3/src/derive/context/field.rs:78:14 [INFO] [stdout] | [INFO] [stdout] 78 | .collect_fallible()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect_fallible` [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: std::default::Default` [INFO] [stdout] note: required by a bound in `IterExt::collect_fallible` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/jtd-derive-macros-0.1.3/src/iter_ext.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 4 | fn collect_fallible(self) -> Result [INFO] [stdout] | ---------------- required by a bound in this associated function [INFO] [stdout] 5 | where [INFO] [stdout] 6 | B: Default + Extend; [INFO] [stdout] | ^^^^^^^ required by this bound in `IterExt::collect_fallible` [INFO] [stdout] help: consider specifying the generic argument [INFO] [stdout] | [INFO] [stdout] 78 | .collect_fallible::()?; [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0283`. [INFO] [stdout] [INFO] [stderr] error: could not compile `jtd-derive-macros` (lib) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "df01950df0aeba623f84636226c66aabcc4646cbb36446a61ad345754d8c5467", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df01950df0aeba623f84636226c66aabcc4646cbb36446a61ad345754d8c5467", kill_on_drop: false }` [INFO] [stdout] df01950df0aeba623f84636226c66aabcc4646cbb36446a61ad345754d8c5467