[INFO] cloning repository https://github.com/uint/jtd-derive
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uint/jtd-derive" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuint%2Fjtd-derive", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuint%2Fjtd-derive'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b6aeb2e95ec991803606430ebff0adfdfd66d10
[INFO] testing uint/jtd-derive against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuint%2Fjtd-derive" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/uint/jtd-derive
[INFO] finished tweaking git repo https://github.com/uint/jtd-derive
[INFO] tweaked toml for git repo https://github.com/uint/jtd-derive written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/uint/jtd-derive on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/uint/jtd-derive 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 27c07ef47eea3c826681931e16fc7382940d47e473ef7a6622e039f2cd9ecd8d
[INFO] running `Command { std: "docker" "start" "27c07ef47eea3c826681931e16fc7382940d47e473ef7a6622e039f2cd9ecd8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27c07ef47eea3c826681931e16fc7382940d47e473ef7a6622e039f2cd9ecd8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "27c07ef47eea3c826681931e16fc7382940d47e473ef7a6622e039f2cd9ecd8d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27c07ef47eea3c826681931e16fc7382940d47e473ef7a6622e039f2cd9ecd8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "27c07ef47eea3c826681931e16fc7382940d47e473ef7a6622e039f2cd9ecd8d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling serde_derive_internals v0.26.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling jtd-derive-macros v0.1.4 (/opt/rustwide/workdir/macros)
[INFO] [stdout] error[E0277]: the trait bound `!: std::default::Default` is not satisfied
[INFO] [stdout]    --> macros/src/derive/context/container.rs:204:14
[INFO] [stdout]     |
[INFO] [stdout] 204 |             .collect_fallible()?;
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^ the trait `std::default::Default` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]     = help: you might have intended to use the type `()` here instead
[INFO] [stdout] note: required by a bound in `IterExt::collect_fallible`
[INFO] [stdout]    --> macros/src/iter_ext.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout]   3 | pub trait IterExt<T>: Iterator<Item = Result<T, syn::Error>> {
[INFO] [stdout]   4 |     fn collect_fallible<B>(self) -> Result<B, syn::Error>
[INFO] [stdout]   5 |     where
[INFO] [stdout]   6 |         B: Default + Extend<T>;
[INFO] [stdout]     |            ^^^^^^^ required by this bound in `IterExt::collect_fallible`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: Extend<()>` is not satisfied
[INFO] [stdout]    --> macros/src/derive/context/container.rs:204:14
[INFO] [stdout]     |
[INFO] [stdout] 204 |             .collect_fallible()?;
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^ the trait `Extend<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `Extend<()>` is implemented for `()`
[INFO] [stdout]    --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/iter/traits/collect.rs:454:0
[INFO] [stdout]     = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]     = help: you might have intended to use the type `()` here instead
[INFO] [stdout] note: required by a bound in `IterExt::collect_fallible`
[INFO] [stdout]    --> macros/src/iter_ext.rs:6:22
[INFO] [stdout]     |
[INFO] [stdout]   3 | pub trait IterExt<T>: Iterator<Item = Result<T, syn::Error>> {
[INFO] [stdout]   4 |     fn collect_fallible<B>(self) -> Result<B, syn::Error>
[INFO] [stdout]   5 |     where
[INFO] [stdout]   6 |         B: Default + Extend<T>;
[INFO] [stdout]     |                      ^^^^^^^^^ required by this bound in `IterExt::collect_fallible`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: std::default::Default` is not satisfied
[INFO] [stdout]   --> macros/src/derive/context/field.rs:78:14
[INFO] [stdout]    |
[INFO] [stdout] 78 |             .collect_fallible()?;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ the trait `std::default::Default` is not implemented for `!`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]    = help: you might have intended to use the type `()` here instead
[INFO] [stdout] note: required by a bound in `IterExt::collect_fallible`
[INFO] [stdout]   --> macros/src/iter_ext.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout]  3 | pub trait IterExt<T>: Iterator<Item = Result<T, syn::Error>> {
[INFO] [stdout]  4 |     fn collect_fallible<B>(self) -> Result<B, syn::Error>
[INFO] [stdout]  5 |     where
[INFO] [stdout]  6 |         B: Default + Extend<T>;
[INFO] [stdout]    |            ^^^^^^^ required by this bound in `IterExt::collect_fallible`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: Extend<()>` is not satisfied
[INFO] [stdout]   --> macros/src/derive/context/field.rs:78:14
[INFO] [stdout]    |
[INFO] [stdout] 78 |             .collect_fallible()?;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ the trait `Extend<()>` is not implemented for `!`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Extend<()>` is implemented for `()`
[INFO] [stdout]   --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/iter/traits/collect.rs:454:0
[INFO] [stdout]    = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]    = help: you might have intended to use the type `()` here instead
[INFO] [stdout] note: required by a bound in `IterExt::collect_fallible`
[INFO] [stdout]   --> macros/src/iter_ext.rs:6:22
[INFO] [stdout]    |
[INFO] [stdout]  3 | pub trait IterExt<T>: Iterator<Item = Result<T, syn::Error>> {
[INFO] [stdout]  4 |     fn collect_fallible<B>(self) -> Result<B, syn::Error>
[INFO] [stdout]  5 |     where
[INFO] [stdout]  6 |         B: Default + Extend<T>;
[INFO] [stdout]    |                      ^^^^^^^^^ required by this bound in `IterExt::collect_fallible`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jtd-derive-macros` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "27c07ef47eea3c826681931e16fc7382940d47e473ef7a6622e039f2cd9ecd8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27c07ef47eea3c826681931e16fc7382940d47e473ef7a6622e039f2cd9ecd8d", kill_on_drop: false }`
[INFO] [stdout] 27c07ef47eea3c826681931e16fc7382940d47e473ef7a6622e039f2cd9ecd8d
