[INFO] fetching crate trace-lang-core 0.2.2...
[INFO] testing trace-lang-core-0.2.2 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate trace-lang-core 0.2.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate trace-lang-core 0.2.2
[INFO] finished tweaking crates.io crate trace-lang-core 0.2.2
[INFO] tweaked toml for crates.io crate trace-lang-core 0.2.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate trace-lang-core 0.2.2 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trace-lang-core 0.2.2 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded supports-hyperlinks v3.2.0
[INFO] [stderr]   Downloaded is_ci v1.2.0
[INFO] [stderr]   Downloaded supports-unicode v3.0.0
[INFO] [stderr]   Downloaded supports-color v3.0.2
[INFO] [stderr]   Downloaded miette v7.6.0
[INFO] [stderr]   Downloaded miette-derive v7.6.0
[INFO] [stderr]   Downloaded backtrace-ext v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1
[INFO] running `Command { std: "docker" "start" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1", 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" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1", 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" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling owo-colors v4.3.0
[INFO] [stderr]    Compiling is_ci v1.2.0
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling unicode-linebreak v0.1.5
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]    Compiling supports-color v3.0.2
[INFO] [stderr]    Compiling textwrap v0.16.2
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling supports-unicode v3.0.0
[INFO] [stderr]    Compiling supports-hyperlinks v3.2.0
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling terminal_size v0.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling miette-derive v7.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling backtrace-ext v0.2.1
[INFO] [stderr]    Compiling miette v7.6.0
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling uuid v1.10.0
[INFO] [stderr]    Compiling trace-lang-core v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.55s
[INFO] running `Command { std: "docker" "inspect" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1", 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" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling rand v0.9.5
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling uuid v1.10.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling backtrace-ext v0.2.1
[INFO] [stderr]    Compiling terminal_size v0.4.4
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling miette v7.6.0
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling proptest v1.11.0
[INFO] [stderr]    Compiling trace-lang-core v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 17.33s
[INFO] running `Command { std: "docker" "inspect" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1", 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" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", 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/trace_lang_core-ea31e6400489adda)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test step::tests::step_confidence_clamps_into_unit_range ... ok
[INFO] [stdout] test step::tests::branch_confidence_clamps_into_unit_range ... ok
[INFO] [stdout] test error::tests::trace_err_is_a_miette_diagnostic ... ok
[INFO] [stdout] test step::tests::step_rejected_and_failed_flip_outcome_and_helpers ... ok
[INFO] [stdout] test step::tests::branch_taken_and_rejected_set_expected_outcome ... ok
[INFO] [stdout] test trace::tests::bottlenecks_sorts_slowest_first ... ok
[INFO] [stdout] test trace::tests::into_value_consumes_and_returns_owned_value ... ok
[INFO] [stdout] test trace::tests::low_confidence_uses_default_threshold_of_0_7 ... ok
[INFO] [stdout] test trace::tests::merge_concatenates_causal_chains_and_keeps_lhs_value ... ok
[INFO] [stdout] test trace::tests::new_trace_is_ok_and_carries_value ... ok
[INFO] [stdout] test trace::tests::push_step_appends_to_causal_chain ... ok
[INFO] [stdout] test trace::tests::failed_trace_is_not_ok_and_carries_error ... ok
[INFO] [stdout] test trace::tests::from_trace_for_result_maps_ok_and_err ... ok
[INFO] [stdout] test trace::tests::low_confidence_below_respects_arbitrary_threshold ... ok
[INFO] [stdout] test trace::tests::rejected_branches_filters_only_rejected_steps ... ok
[INFO] [stdout] test trace::tests::trace_ref_wraps_the_trace_id ... ok
[INFO] [stderr]    Doc-tests trace_lang_core
[INFO] [stdout] test step::tests::step_with_confidence_is_always_in_unit_range ... ok
[INFO] [stdout] test step::tests::branch_with_confidence_is_always_in_unit_range ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/span.rs - span::Span (line 6) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.48s; merged doctests compilation took 0.46s
[INFO] running `Command { std: "docker" "inspect" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1", kill_on_drop: false }`
[INFO] [stdout] e38d2d74cbe517552269b4689b2d2cdc47e2ba83567a72f53ab457424c8ba0c1
