[INFO] fetching crate rust-lstar 0.2.0...
[INFO] testing rust-lstar-0.2.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate rust-lstar 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rust-lstar 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rust-lstar 0.2.0
[INFO] tweaked toml for crates.io crate rust-lstar 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-lstar 0.2.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust-lstar 0.2.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v1.21.0
[INFO] [stderr]   Downloaded jiff-static v0.2.20
[INFO] [stderr]   Downloaded syn v2.0.115
[INFO] [stderr]   Downloaded jiff v0.2.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae1dc895f372dfd7949eeef7d1272d1d1de0c5ab11cd0d290673690bb5e72712
[INFO] running `Command { std: "docker" "start" "-a" "ae1dc895f372dfd7949eeef7d1272d1d1de0c5ab11cd0d290673690bb5e72712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae1dc895f372dfd7949eeef7d1272d1d1de0c5ab11cd0d290673690bb5e72712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae1dc895f372dfd7949eeef7d1272d1d1de0c5ab11cd0d290673690bb5e72712", kill_on_drop: false }`
[INFO] [stdout] ae1dc895f372dfd7949eeef7d1272d1d1de0c5ab11cd0d290673690bb5e72712
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c61db8fbd9210756e48c55f4d09bd8d8ad0eaf9ad87728034e478b593179cb1a
[INFO] running `Command { std: "docker" "start" "-a" "c61db8fbd9210756e48c55f4d09bd8d8ad0eaf9ad87728034e478b593179cb1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling regex-syntax v0.8.9
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling getrandom v0.4.1
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling jiff v0.2.20
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling chrono v0.4.43
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling uuid v1.21.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling env_filter v1.0.0
[INFO] [stderr]    Compiling env_logger v0.11.9
[INFO] [stderr]    Compiling rust-lstar v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.45s
[INFO] running `Command { std: "docker" "inspect" "c61db8fbd9210756e48c55f4d09bd8d8ad0eaf9ad87728034e478b593179cb1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c61db8fbd9210756e48c55f4d09bd8d8ad0eaf9ad87728034e478b593179cb1a", kill_on_drop: false }`
[INFO] [stdout] c61db8fbd9210756e48c55f4d09bd8d8ad0eaf9ad87728034e478b593179cb1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22332d16fd16863298a28b4c16bf19fa8e67a5871b683cebadcc8ae3bb2bc397
[INFO] running `Command { std: "docker" "start" "-a" "22332d16fd16863298a28b4c16bf19fa8e67a5871b683cebadcc8ae3bb2bc397", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-lstar v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "22332d16fd16863298a28b4c16bf19fa8e67a5871b683cebadcc8ae3bb2bc397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22332d16fd16863298a28b4c16bf19fa8e67a5871b683cebadcc8ae3bb2bc397", kill_on_drop: false }`
[INFO] [stdout] 22332d16fd16863298a28b4c16bf19fa8e67a5871b683cebadcc8ae3bb2bc397
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f13ec5938b6f11d09e9a1d7bd45e0414757a6c5d44367cc5d9c9ab982b9dc334
[INFO] running `Command { std: "docker" "start" "-a" "f13ec5938b6f11d09e9a1d7bd45e0414757a6c5d44367cc5d9c9ab982b9dc334", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_lstar-2e6693d7dd1b31f8)
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test eqtest::bdist_method::tests::bdist_finds_counterexample_for_wrong_hypothesis ... ok
[INFO] [stdout] test eqtest::multiple_eqtests::tests::multiple_eqtests_returns_first_counterexample ... ok
[INFO] [stdout] test eqtest::random_walk::tests::random_walk_finds_counterexample_on_flat_transition_automata ... ok
[INFO] [stdout] test eqtest::w_method::tests::wmethod_returns_none_for_equivalent_hypothesis ... ok
[INFO] [stdout] test knowledge_base::fake::tests::test_start_stop ... ok
[INFO] [stdout] test knowledge_base::network::tests::test_connection_addr ... ok
[INFO] [stdout] test knowledge_base::network::tests::test_creation ... ok
[INFO] [stdout] test knowledge_base::stats::tests::test_add_letter ... ok
[INFO] [stdout] test knowledge_base::network::tests::test_set_timeout ... ok
[INFO] [stdout] test knowledge_base::stats::tests::test_creation ... ok
[INFO] [stdout] test knowledge_base::stats::tests::test_increment_query ... ok
[INFO] [stdout] test eqtest::w_method::tests::wmethod_finds_counterexample_for_wrong_hypothesis ... ok
[INFO] [stdout] test query::tests::test_query_creation ... ok
[INFO] [stdout] test eqtest::multiple_eqtests::tests::multiple_eqtests_returns_none_when_all_none ... ok
[INFO] [stdout] test query::tests::test_query_execution ... ok
[INFO] [stdout] test word::tests::test_word_append ... ok
[INFO] [stdout] test letter::tests::test_empty_letter ... ok
[INFO] [stdout] test knowledge_base::tree::tests::test_add_and_retrieve_word ... ok
[INFO] [stdout] test eqtest::random_walk::tests::random_walk_returns_none_when_outputs_match ... ok
[INFO] [stdout] test letter::tests::test_letter_creation ... ok
[INFO] [stdout] test letter::tests::test_letter_equality ... ok
[INFO] [stdout] test lstar::tests::test_lstar_creation ... ok
[INFO] [stdout] test word::tests::test_word_concatenate ... ok
[INFO] [stdout] test observation_table::tests::test_observation_table_creation ... ok
[INFO] [stdout] test word::tests::test_word_creation ... ok
[INFO] [stdout] test word::tests::test_word_from_letters ... ok
[INFO] [stdout] test word::tests::test_word_prefix ... ok
[INFO] [stdout] test knowledge_base::tree::tests::test_multiple_words ... ok
[INFO] [stdout] test knowledge_base::fake::tests::test_creation ... ok
[INFO] [stdout] test knowledge_base::tree::tests::test_retrieve_nonexistent_word ... ok
[INFO] [stdout] test knowledge_base::tree::tests::test_incompatible_path_error ... ok
[INFO] [stderr]    Doc-tests rust_lstar
[INFO] [stdout] test eqtest::bdist_method::tests::bdist_returns_none_for_equivalent_hypothesis ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "f13ec5938b6f11d09e9a1d7bd45e0414757a6c5d44367cc5d9c9ab982b9dc334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f13ec5938b6f11d09e9a1d7bd45e0414757a6c5d44367cc5d9c9ab982b9dc334", kill_on_drop: false }`
[INFO] [stdout] f13ec5938b6f11d09e9a1d7bd45e0414757a6c5d44367cc5d9c9ab982b9dc334