[INFO] fetching crate liblet 0.2.0...
[INFO] testing liblet-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate liblet 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate liblet 0.2.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate liblet 0.2.0
[INFO] finished tweaking crates.io crate liblet 0.2.0
[INFO] tweaked toml for crates.io crate liblet 0.2.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate liblet 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7de7c64e9fcc65ab6e69f68234fc30917fcace733bc31bebee40290b615c108
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b7de7c64e9fcc65ab6e69f68234fc30917fcace733bc31bebee40290b615c108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7de7c64e9fcc65ab6e69f68234fc30917fcace733bc31bebee40290b615c108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7de7c64e9fcc65ab6e69f68234fc30917fcace733bc31bebee40290b615c108", kill_on_drop: false }`
[INFO] [stdout] b7de7c64e9fcc65ab6e69f68234fc30917fcace733bc31bebee40290b615c108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4c1919fa5fe11565e5d39175313d54822e35b98657caefb7299565bbb78c67
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5f4c1919fa5fe11565e5d39175313d54822e35b98657caefb7299565bbb78c67", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.20
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling liblet v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.01s
[INFO] running `Command { std: "docker" "inspect" "5f4c1919fa5fe11565e5d39175313d54822e35b98657caefb7299565bbb78c67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4c1919fa5fe11565e5d39175313d54822e35b98657caefb7299565bbb78c67", kill_on_drop: false }`
[INFO] [stdout] 5f4c1919fa5fe11565e5d39175313d54822e35b98657caefb7299565bbb78c67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d6b158391ecb4eedb1eb28823d6f959993a4a4ea37b3e5333b36b3b273a70a9b
[INFO] running `Command { std: "docker" "start" "-a" "d6b158391ecb4eedb1eb28823d6f959993a4a4ea37b3e5333b36b3b273a70a9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.7.1
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling version-sync v0.9.0
[INFO] [stderr]    Compiling liblet v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.38s
[INFO] running `Command { std: "docker" "inspect" "d6b158391ecb4eedb1eb28823d6f959993a4a4ea37b3e5333b36b3b273a70a9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6b158391ecb4eedb1eb28823d6f959993a4a4ea37b3e5333b36b3b273a70a9b", kill_on_drop: false }`
[INFO] [stdout] d6b158391ecb4eedb1eb28823d6f959993a4a4ea37b3e5333b36b3b273a70a9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f68bdd7a85debd291525a2694e06a165053aa0cf4c112daf5a1e898fadbf2c9c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f68bdd7a85debd291525a2694e06a165053aa0cf4c112daf5a1e898fadbf2c9c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stdout] running 189 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/liblet-1a59fe3ab0eb0b82
[INFO] [stdout] test automaton::tests::automaton_debug ... ok
[INFO] [stdout] test automaton::tests::automaton_from_grammar ... ok
[INFO] [stdout] test automaton::tests::automaton_new_no_transitions ... ok
[INFO] [stdout] test automaton::tests::automaton_error_source ... ok
[INFO] [stdout] test automaton::tests::automaton_error_display_not_regular_grammar ... ok
[INFO] [stdout] test automaton::tests::automaton ... ok
[INFO] [stdout] test automaton::tests::automaton_n ... ok
[INFO] [stdout] test automaton::tests::automaton_from_string_with_q0 ... ok
[INFO] [stdout] test automaton::tests::automaton_display_symbol ... ok
[INFO] [stdout] test automaton::tests::automaton_error_display_transition_error ... ok
[INFO] [stdout] test automaton::tests::automaton_from_string_no_q0 ... ok
[INFO] [stdout] test automaton::tests::automaton_new ... ok
[INFO] [stdout] test automaton::tests::transition_display_symbol ... ok
[INFO] [stdout] test automaton::tests::automaton_error_display_no_states ... ok
[INFO] [stdout] test automaton::tests::automaton_from_string_error ... ok
[INFO] [stdout] test automaton::tests::automaton_f ... ok
[INFO] [stdout] test automaton::tests::automaton_next ... ok
[INFO] [stdout] test automaton::tests::automaton_try_from_grammar ... ok
[INFO] [stdout] test automaton::tests::automaton_q0 ... ok
[INFO] [stdout] test automaton::tests::automaton_with_q0_no_transitions ... ok
[INFO] [stdout] test automaton::tests::transition ... ok
[INFO] [stdout] test automaton::tests::mod_automaton_with_q0 ... ok
[INFO] [stdout] test automaton::tests::transition_debug ... ok
[INFO] [stdout] test automaton::tests::automaton_with_q0 ... ok
[INFO] [stdout] test automaton::tests::transition_try_from_error ... ok
[INFO] [stdout] test automaton::tests::transition_try_from_empty ... ok
[INFO] [stdout] test automaton::tests::transition_try_from ... ok
[INFO] [stdout] test automaton::tests::transition_new ... ok
[INFO] [stdout] test automaton::tests::transition_try_from_multiple ... ok
[INFO] [stdout] test automaton::tests::transitions ... ok
[INFO] [stdout] test derivation::tests::derivation ... ok
[INFO] [stdout] test derivation::tests::derivation_display ... ok
[INFO] [stdout] test derivation::tests::derivation_error_display_impossible_step ... ok
[INFO] [stdout] test derivation::tests::derivation_error_display_no_n_symbol ... ok
[INFO] [stdout] test derivation::tests::derivation_error_display_wrong_index ... ok
[INFO] [stdout] test derivation::tests::derivation_error_display_wrong_production_index ... ok
[INFO] [stdout] test derivation::tests::derivation_step_display ... ok
[INFO] [stdout] test derivation::tests::is_possible_step_false ... ok
[INFO] [stdout] test derivation::tests::is_possible_step_true ... ok
[INFO] [stdout] test derivation::tests::leftmost ... ok
[INFO] [stdout] test derivation::tests::leftmost_no_n_symbol ... ok
[INFO] [stdout] test derivation::tests::leftmost_from_iter ... ok
[INFO] [stdout] test derivation::tests::possible_steps_by_index ... ok
[INFO] [stdout] test automaton::tests::automaton_from_grammar_error ... ok
[INFO] [stdout] test automaton::tests::transition_error_source ... ok
[INFO] [stdout] test automaton::tests::transition_from_string ... ok
[INFO] [stdout] test automaton::tests::automaton_transitions ... ok
[INFO] [stdout] test automaton::tests::automaton_t ... ok
[INFO] [stdout] test derivation::tests::new_from ... ok
[INFO] [stdout] test derivation::tests::new ... ok
[INFO] [stdout] test derivation::tests::step_epsilon ... ok
[INFO] [stdout] test derivation::tests::rightmost ... ok
[INFO] [stdout] test derivation::tests::step ... ok
[INFO] [stdout] test derivation::tests::possible_steps_by_prod ... ok
[INFO] [stdout] test derivation::tests::possible_steps_by_index_wrong_index ... ok
[INFO] [stdout] test derivation::tests::step_impossible_step ... ok
[INFO] [stdout] test derivation::tests::step_from_iter ... ok
[INFO] [stdout] test grammar::tests::alternatives ... ok
[INFO] [stdout] test grammar::tests::from_string_multiple_start_symbols ... ok
[INFO] [stdout] test grammar::tests::alternatives_empty ... ok
[INFO] [stdout] test derivation::tests::step_wrong_production_index ... ok
[INFO] [stdout] test grammar::tests::from_string_no_rhs ... ok
[INFO] [stdout] test grammar::tests::from_string_no_lhs ... ok
[INFO] [stdout] test grammar::tests::from_string_no_start_symbol_no_production ... ok
[INFO] [stdout] test grammar::tests::grammar ... ok
[INFO] [stdout] test grammar::tests::grammar_display ... ok
[INFO] [stdout] test grammar::tests::grammar_error_display_multiple_start_symbols ... ok
[INFO] [stdout] test automaton::tests::transition_error_display_format_error ... ok
[INFO] [stdout] test automaton::tests::transition_error_display_symbol_error ... ok
[INFO] [stdout] test automaton::tests::transition_from_string_no_label ... ok
[INFO] [stdout] test derivation::tests::sentential_form_before_steps ... ok
[INFO] [stdout] test derivation::tests::step_wrong_index ... ok
[INFO] [stdout] test grammar::tests::grammar_error_display_production_error ... ok
[INFO] [stdout] test grammar::tests::grammar_error_display_no_start_symbol ... ok
[INFO] [stdout] test grammar::tests::grammar_error_display_wrong_start_symbol ... ok
[INFO] [stdout] test derivation::tests::rightmost_no_n_symbol ... ok
[INFO] [stdout] test automaton::tests::transition_from_string_tokenizer_error ... ok
[INFO] [stdout] test grammar::tests::grammar_error_display_wrong_non_terminals ... ok
[INFO] [stdout] test grammar::tests::grammar_error_display_symbol_error ... ok
[INFO] [stdout] test automaton::tests::transition_from_string_symbol_error_from ... ok
[INFO] [stdout] test automaton::tests::transition_from_string_symbol_error_to ... ok
[INFO] [stdout] test grammar::tests::new ... ok
[INFO] [stdout] test grammar::tests::grammar_try_from_error ... ok
[INFO] [stdout] test grammar::tests::grammar_error_source ... ok
[INFO] [stdout] test grammar::tests::grammar_quadruple ... ok
[INFO] [stdout] test grammar::tests::grammar_try_from ... ok
[INFO] [stdout] test grammar::tests::grammar_error_source_none ... ok
[INFO] [stdout] test grammar::tests::new_from_string ... ok
[INFO] [stdout] test grammar::tests::new_from_string_wrong_non_terminal_symbols ... ok
[INFO] [stdout] test grammar::tests::new_wrong_non_terminals ... ok
[INFO] [stdout] test grammar::tests::new_wrong_terminals ... ok
[INFO] [stdout] test grammar::tests::new_wrong_start_symbol ... ok
[INFO] [stdout] test grammar::tests::productives ... ok
[INFO] [stdout] test grammar::tests::productives_from ... ok
[INFO] [stdout] test grammar::tests::reachable ... ok
[INFO] [stdout] test grammar::tests::restrict_to ... ok
[INFO] [stdout] test grammar::tests::new_from_string_wrong_terminal_symbols ... ok
[INFO] [stdout] test grammar::tests::reachable_from ... ok
[INFO] [stdout] test grammar::tests::n ... ok
[INFO] [stdout] test grammar::tests::from_string ... ok
[INFO] [stdout] test grammar::tests::grammar_error_display_wrong_terminals ... ok
[INFO] [stdout] test grammar::tests::new_from_string_wrong_start_symbol ... ok
[INFO] [stdout] test derivation::tests::rightmost_from_iter ... ok
[INFO] [stdout] test grammar::tests::restrict_to_panic_start_symbol ... ok
[INFO] [stdout] test production::tests::from_iter ... ok
[INFO] [stdout] test production::tests::new ... ok
[INFO] [stdout] test production::tests::from_string_error ... ok
[INFO] [stdout] test production::tests::new_empty_side_rhs ... ok
[INFO] [stdout] test grammar::tests::p ... ok
[INFO] [stdout] test production::tests::new_from_string ... ok
[INFO] [stdout] test production::tests::new_empty_side_lhs ... ok
[INFO] [stdout] test production::tests::predicate_rhs_equals ... ok
[INFO] [stdout] test production::tests::predicate_lhs_equals ... ok
[INFO] [stdout] test production::tests::new_from_string_error_rhs ... ok
[INFO] [stdout] test production::tests::new_from_string_error_lhs ... ok
[INFO] [stdout] test production::tests::predicate_rhs_length_equals ... ok
[INFO] [stdout] test production::tests::from_string ... ok
[INFO] [stdout] test production::tests::production_error_display_format_error ... ok
[INFO] [stdout] test production::tests::production ... ok
[INFO] [stdout] test production::tests::production_error_display_no_lhs ... ok
[INFO] [stdout] test production::tests::production_error_display_no_rhs ... ok
[INFO] [stdout] test production::tests::predicate_rhs_is_suffix_of ... ok
[INFO] [stdout] test production::tests::production_predicate_display_rhs_length_equals ... ok
[INFO] [stdout] test production::tests::production_table ... ok
[INFO] [stdout] test production::tests::production_try_from ... ok
[INFO] [stdout] test production::tests::production_try_from_multiple ... ok
[INFO] [stdout] test production::tests::production_try_from_error ... ok
[INFO] [stdout] test production::tests::productions ... ok
[INFO] [stdout] test production::tests::such_that ... ok
[INFO] [stdout] test symbol::tests::from_string ... ok
[INFO] [stdout] test symbol::tests::epsilon ... ok
[INFO] [stdout] test symbol::tests::as_str ... ok
[INFO] [stdout] test symbol::tests::is_non_terminal ... ok
[INFO] [stdout] test symbol::tests::is_terminal ... ok
[INFO] [stdout] test symbol::tests::is_valid_char ... ok
[INFO] [stdout] test symbol::tests::new ... ok
[INFO] [stdout] test production::tests::production_error_source ... ok
[INFO] [stdout] test production::tests::production_display ... ok
[INFO] [stdout] test production::tests::production_error_display_symbol_error ... ok
[INFO] [stdout] test production::tests::production_try_from_no_productions ... ok
[INFO] [stdout] test production::tests::production_error_source_none ... ok
[INFO] [stdout] test symbol::tests::sentential_form ... ok
[INFO] [stdout] test production::tests::production_predicate_display_rhs_is_suffix_of ... ok
[INFO] [stdout] test symbol::tests::symbol ... ok
[INFO] [stdout] test symbol::tests::into_iter ... ok
[INFO] [stdout] test symbol::tests::is_valid_symbol ... ok
[INFO] [stdout] test symbol::tests::symbol_error_display_invalid_symbol ... ok
[INFO] [stdout] test symbol::tests::symbol_error_display_empty_symbol ... ok
[INFO] [stdout] test symbol::tests::symbol_is_epsilon ... ok
[INFO] [stdout] test symbol::tests::to_string ... ok
[INFO] [stdout] test symbol::tests::symbols ... ok
[INFO] [stdout] test tokenizer::tests::productions_from_string ... ok
[INFO] [stdout] test symbol::tests::new_empty_symbol ... ok
[INFO] [stdout] test tokenizer::tests::productions_from_string_multiple_one_line ... ok
[INFO] [stdout] test tokenizer::tests::productions_from_string_no_lhs ... ok
[INFO] [stdout] test tokenizer::tests::productions_from_string_no_lhs_sep ... ok
[INFO] [stdout] test tokenizer::tests::productions_from_string_no_rhs ... ok
[INFO] [stdout] test tokenizer::tests::productions_from_string_no_rhs_or ... ok
[INFO] [stdout] test tokenizer::tests::symbols_from_string_empty ... ok
[INFO] [stdout] test tokenizer::tests::symbols_from_string_no_symbols ... ok
[INFO] [stdout] test grammar::tests::t ... ok
[INFO] [stdout] test tokenizer::tests::productions_from_string_no_production_sep ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_production_empty ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_production_no_lhs ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_production_no_rhs ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_production_multiple ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_production_no_separator ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_transition_multiple ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_transition_multiple_one_line ... ok
[INFO] [stdout] test grammar::tests::s ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_production_multiple_one_line ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_transition_no_label ... ok
[INFO] [stdout] test symbol::tests::symbol_try_from_invalid ... ok
[INFO] [stdout] test symbol::tests::symbol_display ... ok
[INFO] [stdout] test tokenizer::tests::transitions_from_string_no_to_no_label ... ok
[INFO] [stdout] test symbol::tests::symbol_try_from ... ok
[INFO] [stdout] test symbol::tests::symbol_try_from_empty ... ok
[INFO] [stdout] test production::tests::production_predicate_display_rhs_equals ... ok
[INFO] [stdout] test tokenizer::tests::transitions_from_string_multiple_one_line ... ok
[INFO] [stdout] test tokenizer::tests::symbols_from_string ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_transition_no_separator ... ok
[INFO] [stdout] test symbol::tests::new_invalid_char ... ok
[INFO] [stdout] test production::tests::production_predicate_display_lhs_equals ... ok
[INFO] [stdout] test tokenizer::tests::transitions_from_string ... ok
[INFO] [stdout] test tokenizer::tests::transitions_from_string_no_label ... ok
[INFO] [stdout] test tokenizer::tests::tokenizer_error_display_transition_no_to ... ok
[INFO] [stdout] test tokenizer::tests::transitions_from_string_no_to ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/version_number-6739f5f4b86dd414
[INFO] [stdout] test automaton::tests::transitions_error ... ok
[INFO] [stdout] test automaton::tests::transition_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 189 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests liblet
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_readme_deps ... ok
[INFO] [stdout] test test_html_root_url ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 75 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --test /opt/rustwide/workdir/src/lib.rs --crate-name liblet -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern liblet=/opt/rustwide/target/debug/deps/libliblet-3fbc533c1a05b2fc.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-d0136281c0564d1c.rlib --extern version_sync=/opt/rustwide/target/debug/deps/libversion_sync-0f117ec6aa9dafa8.rlib -C embed-bitcode=no` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "f68bdd7a85debd291525a2694e06a165053aa0cf4c112daf5a1e898fadbf2c9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68bdd7a85debd291525a2694e06a165053aa0cf4c112daf5a1e898fadbf2c9c", kill_on_drop: false }`
[INFO] [stdout] f68bdd7a85debd291525a2694e06a165053aa0cf4c112daf5a1e898fadbf2c9c