[INFO] fetching crate lbr-prelude-derive 1.0.2...
[INFO] testing lbr-prelude-derive-1.0.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate lbr-prelude-derive 1.0.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate lbr-prelude-derive 1.0.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate lbr-prelude-derive 1.0.2
[INFO] tweaked toml for crates.io crate lbr-prelude-derive 1.0.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lbr-prelude-derive 1.0.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate lbr-prelude-derive 1.0.2 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d68a380350fc388970638bf0cda2beba0841b8e906b012717851be4afc7dcd4
[INFO] running `Command { std: "docker" "start" "-a" "3d68a380350fc388970638bf0cda2beba0841b8e906b012717851be4afc7dcd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d68a380350fc388970638bf0cda2beba0841b8e906b012717851be4afc7dcd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d68a380350fc388970638bf0cda2beba0841b8e906b012717851be4afc7dcd4", kill_on_drop: false }`
[INFO] [stdout] 3d68a380350fc388970638bf0cda2beba0841b8e906b012717851be4afc7dcd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d495028f6be57814c8a9c7dcb35ee1e998c293e8a85645ad6fdb7206efe3668d
[INFO] running `Command { std: "docker" "start" "-a" "d495028f6be57814c8a9c7dcb35ee1e998c293e8a85645ad6fdb7206efe3668d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling serde_spanned v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling toml_parser v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling dissimilar v1.0.10
[INFO] [stderr]    Compiling toml v0.9.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling trybuild v1.0.110
[INFO] [stderr]    Compiling lbr-prelude-derive v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.66s
[INFO] running `Command { std: "docker" "inspect" "d495028f6be57814c8a9c7dcb35ee1e998c293e8a85645ad6fdb7206efe3668d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d495028f6be57814c8a9c7dcb35ee1e998c293e8a85645ad6fdb7206efe3668d", kill_on_drop: false }`
[INFO] [stdout] d495028f6be57814c8a9c7dcb35ee1e998c293e8a85645ad6fdb7206efe3668d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06f1b1ed780aa45461c58827471bbcc1f7b2f522a737b493a05d93e17264022b
[INFO] running `Command { std: "docker" "start" "-a" "06f1b1ed780aa45461c58827471bbcc1f7b2f522a737b493a05d93e17264022b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling winnow v0.7.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]    Compiling toml_writer v1.0.2
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling dissimilar v1.0.10
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling toml_parser v1.0.2
[INFO] [stderr]    Compiling serde_spanned v1.0.0
[INFO] [stderr]    Compiling toml_datetime v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling toml v0.9.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling trybuild v1.0.110
[INFO] [stderr]    Compiling lbr-prelude-derive v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/enum.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lbr_prelude::json::{json_constructor, Json};
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/struct.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lbr_prelude::json::Json;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/tuple.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lbr_prelude::json::Json;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/newtype.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lbr_prelude::json::Json;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/tuple.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/tuple.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these modules
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use serde_json::error;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/tuple.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::error::Error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::fmt::Error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::io::Error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use core::error::Error;
[INFO] [stdout]   |
[INFO] [stdout]   = and 3 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/enum.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/struct.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/newtype.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lbr-prelude-derive` (test "tuple") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/newtype.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these modules
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use serde_json::error;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lbr-prelude-derive` (test "newtype") due to 3 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/struct.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these modules
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use serde_json::error;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/struct.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::error::Error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::fmt::Error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::io::Error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use core::error::Error;
[INFO] [stdout]   |
[INFO] [stdout]   = and 3 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/enum.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these modules
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use serde_json::error;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]  --> tests/enum.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Json)]
[INFO] [stdout]   |          ^^^^ use of unresolved module or unlinked crate `lbr_prelude`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `lbr_prelude`, use `cargo add lbr_prelude` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `Json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::error::Error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::fmt::Error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::io::Error;
[INFO] [stdout]   |
[INFO] [stdout] 1 + use core::error::Error;
[INFO] [stdout]   |
[INFO] [stdout]   = and 3 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lbr-prelude-derive` (test "struct") due to 4 previous errors
[INFO] [stderr] error: could not compile `lbr-prelude-derive` (test "enum") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "06f1b1ed780aa45461c58827471bbcc1f7b2f522a737b493a05d93e17264022b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f1b1ed780aa45461c58827471bbcc1f7b2f522a737b493a05d93e17264022b", kill_on_drop: false }`
[INFO] [stdout] 06f1b1ed780aa45461c58827471bbcc1f7b2f522a737b493a05d93e17264022b
