[INFO] fetching crate fondant 0.1.2...
[INFO] testing fondant-0.1.2 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate fondant 0.1.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate fondant 0.1.2
[INFO] finished tweaking crates.io crate fondant 0.1.2
[INFO] tweaked toml for crates.io crate fondant 0.1.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fondant 0.1.2 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8617881280838d0177ca23b1132987659095363c2a6f94eacc33b98a192c8e1
[INFO] running `Command { std: "docker" "start" "-a" "b8617881280838d0177ca23b1132987659095363c2a6f94eacc33b98a192c8e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8617881280838d0177ca23b1132987659095363c2a6f94eacc33b98a192c8e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8617881280838d0177ca23b1132987659095363c2a6f94eacc33b98a192c8e1", kill_on_drop: false }`
[INFO] [stdout] b8617881280838d0177ca23b1132987659095363c2a6f94eacc33b98a192c8e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ec187743f4d53cd554f7ce1d4660a811450428d17156fdfad866e9fe3b679aa
[INFO] running `Command { std: "docker" "start" "-a" "1ec187743f4d53cd554f7ce1d4660a811450428d17156fdfad866e9fe3b679aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling directories v2.0.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling fondant_derive v0.1.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling fondant_deps v0.1.1
[INFO] [stderr]    Compiling fondant v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.28s
[INFO] running `Command { std: "docker" "inspect" "1ec187743f4d53cd554f7ce1d4660a811450428d17156fdfad866e9fe3b679aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ec187743f4d53cd554f7ce1d4660a811450428d17156fdfad866e9fe3b679aa", kill_on_drop: false }`
[INFO] [stdout] 1ec187743f4d53cd554f7ce1d4660a811450428d17156fdfad866e9fe3b679aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 254ae250e227b0d0f1f1ad5d257f4fa68d2d86222021aee7150f4f81329f9910
[INFO] running `Command { std: "docker" "start" "-a" "254ae250e227b0d0f1f1ad5d257f4fa68d2d86222021aee7150f4f81329f9910", kill_on_drop: false }`
[INFO] [stderr]    Compiling fondant v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "254ae250e227b0d0f1f1ad5d257f4fa68d2d86222021aee7150f4f81329f9910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254ae250e227b0d0f1f1ad5d257f4fa68d2d86222021aee7150f4f81329f9910", kill_on_drop: false }`
[INFO] [stdout] 254ae250e227b0d0f1f1ad5d257f4fa68d2d86222021aee7150f4f81329f9910
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c8a448c0ed571b4fcc2a35c3e52d6819b6c4ec44f0a3a6de4b12d30ca21c7e61
[INFO] running `Command { std: "docker" "start" "-a" "c8a448c0ed571b4fcc2a35c3e52d6819b6c4ec44f0a3a6de4b12d30ca21c7e61", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fondant-f3bb6324b8fcab71)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fondant
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 97) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 84) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 33) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 71) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 108) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 97) stdout ----
[INFO] [stdout] error: cannot find derive macro `Configure` in this scope
[INFO] [stdout]   --> src/lib.rs:98:10
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> src/lib.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]   --> src/lib.rs:98:32
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `config_file` in this scope
[INFO] [stdout]   --> src/lib.rs:99:3
[INFO] [stdout]    |
[INFO] [stdout] 99 | #[config_file = "~/.apprc.json"]
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 84) stdout ----
[INFO] [stdout] error: cannot find derive macro `Configure` in this scope
[INFO] [stdout]   --> src/lib.rs:85:10
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> src/lib.rs:85:21
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]   --> src/lib.rs:85:32
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `config_file` in this scope
[INFO] [stdout]   --> src/lib.rs:86:3
[INFO] [stdout]    |
[INFO] [stdout] 86 | #[config_file = "config.yaml"]
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 33) stdout ----
[INFO] [stdout] error: cannot find derive macro `Configure` in this scope
[INFO] [stdout]   --> src/lib.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> src/lib.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]   --> src/lib.rs:35:32
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `config_file` in this scope
[INFO] [stdout]   --> src/lib.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[config_file = "config.toml"]
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `load` found for struct `AppConfig` in the current scope
[INFO] [stdout]   --> src/lib.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct AppConfig {
[INFO] [stdout]    | ---------------- function or associated item `load` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     let mut conf = AppConfig::load().unwrap();
[INFO] [stdout]    |                               ^^^^ function or associated item not found in `AppConfig`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `load`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `fondant::Configure`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 71) stdout ----
[INFO] [stdout] error: cannot find derive macro `Configure` in this scope
[INFO] [stdout]   --> src/lib.rs:72:10
[INFO] [stdout]    |
[INFO] [stdout] 72 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> src/lib.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]   --> src/lib.rs:72:32
[INFO] [stdout]    |
[INFO] [stdout] 72 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `config_file` in this scope
[INFO] [stdout]   --> src/lib.rs:73:3
[INFO] [stdout]    |
[INFO] [stdout] 73 | #[config_file = "apprc.toml"]
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 108) stdout ----
[INFO] [stdout] error: cannot find derive macro `Configure` in this scope
[INFO] [stdout]    --> src/lib.rs:109:10
[INFO] [stdout]     |
[INFO] [stdout] 109 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]    --> src/lib.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]    --> src/lib.rs:109:32
[INFO] [stdout]     |
[INFO] [stdout] 109 | #[derive(Configure, Serialize, Deserialize, Default)]
[INFO] [stdout]     |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `config_file` in this scope
[INFO] [stdout]    --> src/lib.rs:110:3
[INFO] [stdout]     |
[INFO] [stdout] 110 | #[config_file = "config.toml"]
[INFO] [stdout]     |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `serde` in this scope
[INFO] [stdout]    --> src/lib.rs:112:7
[INFO] [stdout]     |
[INFO] [stdout] 112 |     #[serde(skip)]
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 108)
[INFO] [stdout]     src/lib.rs - (line 33)
[INFO] [stdout]     src/lib.rs - (line 71)
[INFO] [stdout]     src/lib.rs - (line 84)
[INFO] [stdout]     src/lib.rs - (line 97)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 5 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "c8a448c0ed571b4fcc2a35c3e52d6819b6c4ec44f0a3a6de4b12d30ca21c7e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a448c0ed571b4fcc2a35c3e52d6819b6c4ec44f0a3a6de4b12d30ca21c7e61", kill_on_drop: false }`
[INFO] [stdout] c8a448c0ed571b4fcc2a35c3e52d6819b6c4ec44f0a3a6de4b12d30ca21c7e61
