[INFO] fetching crate arithmetic-parser 0.2.0...
[INFO] testing arithmetic-parser-0.2.0 against 1.52.1 for beta-1.52-2
[INFO] extracting crate arithmetic-parser 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate arithmetic-parser 0.2.0 on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arithmetic-parser 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate arithmetic-parser 0.2.0
[INFO] tweaked toml for crates.io crate arithmetic-parser 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate arithmetic-parser 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1e361a7b8a8883df7b1254b72f6ab076b996c19de3421e3a67a3b6370abaea0
[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" "d1e361a7b8a8883df7b1254b72f6ab076b996c19de3421e3a67a3b6370abaea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1e361a7b8a8883df7b1254b72f6ab076b996c19de3421e3a67a3b6370abaea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1e361a7b8a8883df7b1254b72f6ab076b996c19de3421e3a67a3b6370abaea0", kill_on_drop: false }`
[INFO] [stdout] d1e361a7b8a8883df7b1254b72f6ab076b996c19de3421e3a67a3b6370abaea0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ff6d95c062e416e0a00e5dcde5dd8a1df045113fc49b61d79ba83fb6deb3d69
[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" "1ff6d95c062e416e0a00e5dcde5dd8a1df045113fc49b61d79ba83fb6deb3d69", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling nom_locate v3.0.0
[INFO] [stderr]    Compiling arithmetic-parser v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.70s
[INFO] running `Command { std: "docker" "inspect" "1ff6d95c062e416e0a00e5dcde5dd8a1df045113fc49b61d79ba83fb6deb3d69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff6d95c062e416e0a00e5dcde5dd8a1df045113fc49b61d79ba83fb6deb3d69", kill_on_drop: false }`
[INFO] [stdout] 1ff6d95c062e416e0a00e5dcde5dd8a1df045113fc49b61d79ba83fb6deb3d69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a10122c5d2348732ff408b27f54df08404c060928a8c87c09df003d352f3c95b
[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" "a10122c5d2348732ff408b27f54df08404c060928a8c87c09df003d352f3c95b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling semver-parser v0.9.0
[INFO] [stderr]    Compiling assert_matches v1.4.0
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling version-sync v0.9.1
[INFO] [stderr]    Compiling arithmetic-parser v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]  --> tests/version_match.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     assert_markdown_deps_updated!("README.md");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]   = note: this is no longer accepted in Rust 2021
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/version_match.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     assert_html_root_url_updated!("src/lib.rs");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnaryOp`
[INFO] [stdout]    --> src/grammars/mod.rs:227:23
[INFO] [stdout]     |
[INFO] [stdout] 227 |     use crate::{Expr, UnaryOp};
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 44.91s
[INFO] running `Command { std: "docker" "inspect" "a10122c5d2348732ff408b27f54df08404c060928a8c87c09df003d352f3c95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a10122c5d2348732ff408b27f54df08404c060928a8c87c09df003d352f3c95b", kill_on_drop: false }`
[INFO] [stdout] a10122c5d2348732ff408b27f54df08404c060928a8c87c09df003d352f3c95b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9cd712bcdbd688e96c851dd7be43e43098f0fd1f422773084c3e9c7156d3088d
[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" "9cd712bcdbd688e96c851dd7be43e43098f0fd1f422773084c3e9c7156d3088d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `UnaryOp`
[INFO] [stderr]    --> src/grammars/mod.rs:227:23
[INFO] [stderr]     |
[INFO] [stderr] 227 |     use crate::{Expr, UnaryOp};
[INFO] [stderr]     |                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]  --> tests/version_match.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     assert_markdown_deps_updated!("README.md");
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]   = note: this is no longer accepted in Rust 2021
[INFO] [stderr]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/version_match.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     assert_html_root_url_updated!("src/lib.rs");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arithmetic_parser-e82922ef1e3179e0)
[INFO] [stdout] 
[INFO] [stdout] running 53 tests
[INFO] [stdout] test grammars::tests::int_parsers ... ok
[INFO] [stdout] test grammars::tests::parsing_infinity ... ok
[INFO] [stdout] test parser::tests::and_has_higher_priority_than_or ... ok
[INFO] [stdout] test parser::tests::boolean_ops_when_switched_off ... ok
[INFO] [stdout] test parser::tests::assignment_works ... ok
[INFO] [stdout] test parser::tests::comparison_expr_works ... ok
[INFO] [stdout] test parser::tests::chained_comparisons_with_larger_context ... ok
[INFO] [stdout] test parser::tests::element_expr_works ... ok
[INFO] [stdout] test parser::tests::expr_with_inline_comment ... ok
[INFO] [stdout] test parser::tests::expr_with_numbers_works ... ok
[INFO] [stdout] test parser::tests::fn_definition_parsing ... ok
[INFO] [stdout] test parser::tests::expr_evaluation_order ... ok
[INFO] [stdout] test parser::tests::evaluation_order_with_complex_bool_expressions ... ok
[INFO] [stdout] test parser::tests::fn_defs_when_switched_off ... ok
[INFO] [stdout] test parser::tests::destructuring_is_parsed ... ok
[INFO] [stdout] test parser::tests::fun_call_with_terminating_comma ... ok
[INFO] [stdout] test grammars::tests::uint_parsers ... ok
[INFO] [stdout] test parser::tests::evaluation_order_with_bool_expressions ... ok
[INFO] [stdout] test grammars::tests::parsing_numbers_with_dot ... ok
[INFO] [stdout] test parser::tests::fun_works ... ok
[INFO] [stdout] test parser::tests::is_valid_variable_name_works ... ok
[INFO] [stdout] test parser::tests::block_parsing ... ok
[INFO] [stdout] test parser::tests::empty_tuple_is_parsed ... ok
[INFO] [stdout] test parser::tests::methods_have_higher_priority_than_unary_ops ... ok
[INFO] [stdout] test parser::tests::incomplete_fn ... ok
[INFO] [stdout] test parser::tests::fun_works_with_complex_called_values ... ok
[INFO] [stdout] test parser::tests::incomplete_expr ... ok
[INFO] [stdout] test parser::tests::hex_buffer_works ... ok
[INFO] [stdout] test parser::tests::function_call_with_literal_as_fn_name ... ok
[INFO] [stdout] test parser::tests::nested_destructuring_is_parsed ... ok
[INFO] [stdout] test parser::tests::non_ascii_input ... ok
[INFO] [stdout] test parser::tests::lvalues_are_parsed ... ok
[INFO] [stdout] test parser::tests::incomplete_statement ... ok
[INFO] [stdout] test parser::tests::method_expr_works ... ok
[INFO] [stdout] test parser::tests::multiline_comments ... ok
[INFO] [stdout] test parser::tests::methods_when_switched_off ... ok
[INFO] [stdout] test parser::tests::comparison_works ... ok
[INFO] [stdout] test parser::tests::two_char_comparisons_are_parsed ... ok
[INFO] [stdout] test parser::tests::whitespace_can_include_comments ... ok
[INFO] [stdout] test parser::tests::blocks_when_switched_off ... ok
[INFO] [stdout] test parser::tests::tuples_are_parsed ... ok
[INFO] [stdout] test parser::tests::chained_comparisons ... ok
[INFO] [stdout] test parser::tests::string_literal_works ... ok
[INFO] [stdout] test parser::tests::no_unary_op_if_literal_without_it_not_parsed ... ok
[INFO] [stdout] test parser::tests::methods_and_multiple_unary_ops ... ok
[INFO] [stdout] test parser::tests::var_name_works ... ok
[INFO] [stdout] test parser::tests::order_comparisons_when_switched_off ... ok
[INFO] [stdout] test parser::tests::unary_expr_works ... ok
[INFO] [stdout] test parser::tests::tuples_when_switched_off ... ok
[INFO] [stdout] test parser::tests::valid_sequential_comparisons ... ok
[INFO] [stdout] test parser::tests::separated_statements_parse ... ok
[INFO] [stdout] test parser::tests::single_value_tuple_is_parsed ... ok
[INFO] [stdout] test parser::tests::type_hints_when_switched_off ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 53 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/version_match.rs (/opt/rustwide/target/debug/deps/version_match-b7a517c585db6e3d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test readme_is_in_sync ... ok
[INFO] [stderr]    Doc-tests arithmetic-parser
[INFO] [stdout] test html_root_url_is_in_sync ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/grammars/traits.rs - grammars::traits::Parse (line 219) ... ok
[INFO] [stdout] test src/grammars/traits.rs - grammars::traits::Grammar (line 126) ... ok
[INFO] [stdout] test src/grammars/traits.rs - grammars::traits::ParseLiteral (line 49) ... ok
[INFO] [stdout] test src/lib.rs - (line 71) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.23s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9cd712bcdbd688e96c851dd7be43e43098f0fd1f422773084c3e9c7156d3088d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cd712bcdbd688e96c851dd7be43e43098f0fd1f422773084c3e9c7156d3088d", kill_on_drop: false }`
[INFO] [stdout] 9cd712bcdbd688e96c851dd7be43e43098f0fd1f422773084c3e9c7156d3088d