[INFO] fetching crate libset 0.1.6...
[INFO] testing libset-0.1.6 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate libset 0.1.6 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate libset 0.1.6
[INFO] finished tweaking crates.io crate libset 0.1.6
[INFO] tweaked toml for crates.io crate libset 0.1.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libset 0.1.6 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libset 0.1.6 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-2026-01-20" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0699123c616c30a0f817ccdebb0ded99043f35a7e2d5119807893b9ca9fd4955
[INFO] running `Command { std: "docker" "start" "-a" "0699123c616c30a0f817ccdebb0ded99043f35a7e2d5119807893b9ca9fd4955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0699123c616c30a0f817ccdebb0ded99043f35a7e2d5119807893b9ca9fd4955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0699123c616c30a0f817ccdebb0ded99043f35a7e2d5119807893b9ca9fd4955", kill_on_drop: false }`
[INFO] [stdout] 0699123c616c30a0f817ccdebb0ded99043f35a7e2d5119807893b9ca9fd4955
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d205938c114fcd49e202c77f1511530e3a700db65986a116a19e0979da630f37
[INFO] running `Command { std: "docker" "start" "-a" "d205938c114fcd49e202c77f1511530e3a700db65986a116a19e0979da630f37", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling xdg v2.5.2
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling tempfile v3.10.0
[INFO] [stderr]    Compiling atomicwrites v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling libset v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.11s
[INFO] running `Command { std: "docker" "inspect" "d205938c114fcd49e202c77f1511530e3a700db65986a116a19e0979da630f37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d205938c114fcd49e202c77f1511530e3a700db65986a116a19e0979da630f37", kill_on_drop: false }`
[INFO] [stdout] d205938c114fcd49e202c77f1511530e3a700db65986a116a19e0979da630f37
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] add4b41e60d32e5e6365ffcd04874bc51d901d14e2862b7cbb623353b557154b
[INFO] running `Command { std: "docker" "start" "-a" "add4b41e60d32e5e6365ffcd04874bc51d901d14e2862b7cbb623353b557154b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libset v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "add4b41e60d32e5e6365ffcd04874bc51d901d14e2862b7cbb623353b557154b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add4b41e60d32e5e6365ffcd04874bc51d901d14e2862b7cbb623353b557154b", kill_on_drop: false }`
[INFO] [stdout] add4b41e60d32e5e6365ffcd04874bc51d901d14e2862b7cbb623353b557154b
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d3f867b5510c2d5d90b9ee01ddfbc30c47f862738a3b1db8f7f45a725cbb67e6
[INFO] running `Command { std: "docker" "start" "-a" "d3f867b5510c2d5d90b9ee01ddfbc30c47f862738a3b1db8f7f45a725cbb67e6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libset-6a0a1f13ab3de794)
[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 libset
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Config (line 64) ... FAILED
[INFO] [stdout] test src/lib.rs - Config (line 57) ... FAILED
[INFO] [stdout] test src/lib.rs - Config (line 50) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Config (line 64) stdout ----
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> src/lib.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, Serialize, Deserialize)]
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this derive macro
[INFO] [stdout]    |
[INFO] [stdout] 64 + use serde::Serialize;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]   --> src/lib.rs:65:28
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, Serialize, Deserialize)]
[INFO] [stdout]    |                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this derive macro
[INFO] [stdout]    |
[INFO] [stdout] 64 + use serde::Deserialize;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `config` in this scope
[INFO] [stdout]   --> src/lib.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 | let settings: Colors = config.get_json("colors")?;
[INFO] [stdout]    |                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Config (line 57) stdout ----
[INFO] [stdout] error: cannot find macro `json` in this scope
[INFO] [stdout]   --> src/lib.rs:59:27
[INFO] [stdout]    |
[INFO] [stdout] 59 | config.set_json("colors", json!({ "accent": "#7a7af9" }))?;
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 57 + use serde_json::json;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Config`
[INFO] [stdout]   --> src/lib.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 | let config = Config::new("org.example.Demo", 1, None)?;
[INFO] [stdout]    |              ^^^^^^ use of undeclared type `Config`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 57 + use libset::Config;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Config (line 50) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Config`
[INFO] [stdout]   --> src/lib.rs:51:14
[INFO] [stdout]    |
[INFO] [stdout] 51 | let config = Config::new("org.example.Demo", 1, None)?;
[INFO] [stdout]    |              ^^^^^^ use of undeclared type `Config`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 50 + use libset::Config;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Config (line 50)
[INFO] [stdout]     src/lib.rs - Config (line 57)
[INFO] [stdout]     src/lib.rs - Config (line 64)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "d3f867b5510c2d5d90b9ee01ddfbc30c47f862738a3b1db8f7f45a725cbb67e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f867b5510c2d5d90b9ee01ddfbc30c47f862738a3b1db8f7f45a725cbb67e6", kill_on_drop: false }`
[INFO] [stdout] d3f867b5510c2d5d90b9ee01ddfbc30c47f862738a3b1db8f7f45a725cbb67e6
