[INFO] fetching crate bnf 0.3.3...
[INFO] testing bnf-0.3.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate bnf 0.3.3 into /workspace/builds/worker-62/source
[INFO] validating manifest of crates.io crate bnf 0.3.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bnf 0.3.3
[INFO] finished tweaking crates.io crate bnf 0.3.3
[INFO] tweaked toml for crates.io crate bnf 0.3.3 written to /workspace/builds/worker-62/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e675b73985666a05e3b93d73f08d0517d8a2ab09cdc9319c5f42f37c5374126d
[INFO] running `Command { std: "docker" "start" "-a" "e675b73985666a05e3b93d73f08d0517d8a2ab09cdc9319c5f42f37c5374126d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e675b73985666a05e3b93d73f08d0517d8a2ab09cdc9319c5f42f37c5374126d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e675b73985666a05e3b93d73f08d0517d8a2ab09cdc9319c5f42f37c5374126d", kill_on_drop: false }`
[INFO] [stdout] e675b73985666a05e3b93d73f08d0517d8a2ab09cdc9319c5f42f37c5374126d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c713abc3dc8b694984c7ec2065ebf00e6bc1ddf152254ea9112932da64e4c744
[INFO] running `Command { std: "docker" "start" "-a" "c713abc3dc8b694984c7ec2065ebf00e6bc1ddf152254ea9112932da64e4c744", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling psm v0.1.16
[INFO] [stderr]    Compiling stacker v0.1.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling bnf v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.94s
[INFO] running `Command { std: "docker" "inspect" "c713abc3dc8b694984c7ec2065ebf00e6bc1ddf152254ea9112932da64e4c744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c713abc3dc8b694984c7ec2065ebf00e6bc1ddf152254ea9112932da64e4c744", kill_on_drop: false }`
[INFO] [stdout] c713abc3dc8b694984c7ec2065ebf00e6bc1ddf152254ea9112932da64e4c744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 679852a04233991c55760e803b34ceb4ed6f78f27087533bc3cb76bafb6cfda0
[INFO] running `Command { std: "docker" "start" "-a" "679852a04233991c55760e803b34ceb4ed6f78f27087533bc3cb76bafb6cfda0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling bnf v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.42s
[INFO] running `Command { std: "docker" "inspect" "679852a04233991c55760e803b34ceb4ed6f78f27087533bc3cb76bafb6cfda0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "679852a04233991c55760e803b34ceb4ed6f78f27087533bc3cb76bafb6cfda0", kill_on_drop: false }`
[INFO] [stdout] 679852a04233991c55760e803b34ceb4ed6f78f27087533bc3cb76bafb6cfda0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3cace81def81b7aae5ce3ad2e85a0afd051de1c6bebe1d9202d769c25d14e9d2
[INFO] running `Command { std: "docker" "start" "-a" "3cace81def81b7aae5ce3ad2e85a0afd051de1c6bebe1d9202d769c25d14e9d2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bnf-a9213a5afb88dd4a)
[INFO] [stdout] 
[INFO] [stdout] running 49 tests
[INFO] [stdout] test error::tests::gets_error_error ... ok
[INFO] [stdout] test error::tests::test_error_display ... ok
[INFO] [stdout] test error::tests::gets_error_on_incomplete ... ok
[INFO] [stdout] test error::tests::uses_error_generate ... ok
[INFO] [stdout] test error::tests::uses_error_recursion_limit ... ok
[INFO] [stdout] test expression::tests::new_expressions ... ok
[INFO] [stdout] test expression::tests::add_term ... ok
[INFO] [stdout] test expression::tests::remove_term ... ok
[INFO] [stdout] test expression::tests::parse_complete ... ok
[INFO] [stdout] test grammar::tests::lhs_is_terminal_parse ... ok
[INFO] [stdout] test grammar::tests::new_grammars ... ok
[INFO] [stdout] test grammar::tests::lhs_is_terminal_generate ... ok
[INFO] [stdout] test grammar::tests::add_production ... ok
[INFO] [stdout] test expression::tests::remove_nonexistent_term ... ok
[INFO] [stdout] test grammar::tests::lhs_not_found ... ok
[INFO] [stdout] test expression::tests::parse_error ... ok
[INFO] [stdout] test parsers::tests::grammar_match ... ok
[INFO] [stdout] test production::tests::remove_from_rhs ... ok
[INFO] [stdout] test production::tests::new_productions ... ok
[INFO] [stdout] test grammar::tests::parse_error ... ok
[INFO] [stdout] test parsers::tests::expression_match ... ok
[INFO] [stdout] test production::tests::parse_semicolon_separated ... ok
[INFO] [stdout] test term::tests::parse_complete ... ok
[INFO] [stdout] test production::tests::remove_nonexistent_from_rhs ... ok
[INFO] [stdout] test grammar::tests::no_productions ... ok
[INFO] [stdout] test parsers::tests::terminal_match ... ok
[INFO] [stdout] test parsers::tests::nonterminal_match ... ok
[INFO] [stdout] test parsers::tests::production_match ... ok
[INFO] [stdout] test production::tests::parse_incomplete ... ok
[INFO] [stdout] test term::tests::parse_error_display ... ok
[INFO] [stdout] test term::tests::parse_error ... ok
[INFO] [stdout] test grammar::tests::remove_nonexistent_production ... ok
[INFO] [stdout] test expression::tests::parse_incomplete ... ok
[INFO] [stdout] test grammar::tests::parse_error_on_incomplete ... ok
[INFO] [stdout] test grammar::tests::remove_production ... ok
[INFO] [stdout] test term::tests::parse_incomplete ... ok
[INFO] [stdout] test production::tests::parse_complete ... ok
[INFO] [stdout] test term::tests::parse_whitespace_term ... ok
[INFO] [stdout] test production::tests::parse_error ... ok
[INFO] [stdout] test grammar::tests::no_expressions ... ok
[INFO] [stdout] test term::tests::parse_quote_term ... ok
[INFO] [stdout] test term::tests::quote_term_to_string_and_back ... ok
[INFO] [stdout] test term::tests::parse_single_quote_term ... ok
[INFO] [stdout] test term::tests::parse_whitespace_nonterm ... ok
[INFO] [stdout] test grammar::tests::recursion_limit ... ok
[INFO] [stdout] test term::tests::to_string_and_back ... ok
[INFO] [stdout] test expression::tests::to_string_and_back ... ok
[INFO] [stdout] test grammar::tests::to_string_and_back ... ok
[INFO] [stderr]      Running tests/display.rs (/opt/rustwide/target/debug/deps/display-ea6435e2525ed09b)
[INFO] [stdout] test production::tests::to_string_and_back ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 49 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 21.79s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test grammar_with_quotes ... ok
[INFO] [stdout] test validate_terminated_display ... ok
[INFO] [stdout] test validate_nonterminated_display ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/from_str.rs (/opt/rustwide/target/debug/deps/from_str-77c16dc497fdf555)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test custom_trait::expression_from_str ... ok
[INFO] [stdout] test custom_trait::grammar_from_str ... ok
[INFO] [stdout] test std_trait::nonterminal_from_str ... ok
[INFO] [stdout] test custom_trait::terminal_from_str ... ok
[INFO] [stdout] test std_trait::expression_from_str ... ok
[INFO] [stdout] test custom_trait::nonterminal_from_str ... ok
[INFO] [stdout] test std_trait::grammar_from_str ... ok
[INFO] [stdout] test custom_trait::production_from_str ... ok
[INFO] [stdout] test std_trait::production_from_str ... ok
[INFO] [stdout] test std_trait::terminal_from_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/grammar.rs (/opt/rustwide/target/debug/deps/grammar-d09b16be7b1c4d36)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/iterate.rs (/opt/rustwide/target/debug/deps/iterate-ef6c447164e42e83)
[INFO] [stdout] test test_generated_grammars ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.40s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test mutably_iterate_grammar ... ok
[INFO] [stdout] test iterate_grammar ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bnf
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/grammar.rs - grammar::Grammar::generate (line 169) ... ok
[INFO] [stdout] test src/grammar.rs - grammar::Grammar::generate_seeded (line 118) ... ok
[INFO] [stdout] test src/expression.rs - expression::Expression::remove_term (line 37) ... ok
[INFO] [stdout] test src/lib.rs - (line 148) ... ok
[INFO] [stdout] test src/lib.rs - (line 118) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.94s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3cace81def81b7aae5ce3ad2e85a0afd051de1c6bebe1d9202d769c25d14e9d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cace81def81b7aae5ce3ad2e85a0afd051de1c6bebe1d9202d769c25d14e9d2", kill_on_drop: false }`
[INFO] [stdout] 3cace81def81b7aae5ce3ad2e85a0afd051de1c6bebe1d9202d769c25d14e9d2