[INFO] fetching crate syntax-rust 0.4.1...
[INFO] testing syntax-rust-0.4.1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate syntax-rust 0.4.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate syntax-rust 0.4.1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syntax-rust 0.4.1
[INFO] finished tweaking crates.io crate syntax-rust 0.4.1
[INFO] tweaked toml for crates.io crate syntax-rust 0.4.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", 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] f292eab3f1898d750e77a8adc447cba2659840c93d360e5e8598c7dffb5430a7
[INFO] running `Command { std: "docker" "start" "-a" "f292eab3f1898d750e77a8adc447cba2659840c93d360e5e8598c7dffb5430a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f292eab3f1898d750e77a8adc447cba2659840c93d360e5e8598c7dffb5430a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f292eab3f1898d750e77a8adc447cba2659840c93d360e5e8598c7dffb5430a7", kill_on_drop: false }`
[INFO] [stdout] f292eab3f1898d750e77a8adc447cba2659840c93d360e5e8598c7dffb5430a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c406ae90754531e07c9eabf062c0e12e4a24bb1d3dc316fe1f9e053a56bf62b
[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" "7c406ae90754531e07c9eabf062c0e12e4a24bb1d3dc316fe1f9e053a56bf62b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling smol_str v0.1.17
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling dialect v0.4.1
[INFO] [stderr]    Compiling logos v0.11.4
[INFO] [stderr]    Compiling syntax-rust v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.10s
[INFO] running `Command { std: "docker" "inspect" "7c406ae90754531e07c9eabf062c0e12e4a24bb1d3dc316fe1f9e053a56bf62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c406ae90754531e07c9eabf062c0e12e4a24bb1d3dc316fe1f9e053a56bf62b", kill_on_drop: false }`
[INFO] [stdout] 7c406ae90754531e07c9eabf062c0e12e4a24bb1d3dc316fe1f9e053a56bf62b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 939d25d96440af4aeeb614fc8cc38325ac95604c3ebf5817c039834318940aa6
[INFO] running `Command { std: "docker" "start" "-a" "939d25d96440af4aeeb614fc8cc38325ac95604c3ebf5817c039834318940aa6", kill_on_drop: false }`
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling syntax-rust v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.23s
[INFO] running `Command { std: "docker" "inspect" "939d25d96440af4aeeb614fc8cc38325ac95604c3ebf5817c039834318940aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "939d25d96440af4aeeb614fc8cc38325ac95604c3ebf5817c039834318940aa6", kill_on_drop: false }`
[INFO] [stdout] 939d25d96440af4aeeb614fc8cc38325ac95604c3ebf5817c039834318940aa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", 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] cd180f74aede25158a63ed54dfe32d6353c88651f13df7ef942c6398e3f40dc1
[INFO] running `Command { std: "docker" "start" "-a" "cd180f74aede25158a63ed54dfe32d6353c88651f13df7ef942c6398e3f40dc1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/syntax_rust-554285200d46541e)
[INFO] [stdout] 
[INFO] [stdout] running 54 tests
[INFO] [stdout] test grammar::block::tests::parse_block_with_statement_and_expression ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_expression_that_throws_away_result_through_semicolon ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_one_expression ... ok
[INFO] [stdout] test grammar::expr::tests::parses_var_usage ... ok
[INFO] [stdout] test grammar::item::fn_::tests::parses_fn_def_with_return_type ... ok
[INFO] [stdout] test grammar::item::tests::parses_function ... ok
[INFO] [stdout] test grammar::item::tests::parses_struct ... ok
[INFO] [stdout] test grammar::item::tests::parses_trait ... ok
[INFO] [stdout] test grammar::item::trait_::tests::parses_trait_with_erroneous_contents ... ok
[INFO] [stdout] test grammar::item::trait_::tests::parses_trait_with_no_items ... ok
[INFO] [stdout] test grammar::item::trait_::tests::parses_trait_with_several_items ... ok
[INFO] [stdout] test grammar::item::trait_::tests::parses_trait_with_unclosed_brace ... ok
[INFO] [stdout] test grammar::stmt::tests::parses_let_statement ... ok
[INFO] [stdout] test lexer::tests::idents_are_snake_case ... ok
[INFO] [stdout] test lexer::tests::idents_can_start_with_an_underscore ... ok
[INFO] [stdout] test lexer::tests::idents_cannot_start_with_number ... ok
[INFO] [stdout] test lexer::tests::lexes_close_brace ... ok
[INFO] [stdout] test lexer::tests::lexes_close_paren ... ok
[INFO] [stdout] test lexer::tests::lexes_comma ... ok
[INFO] [stdout] test lexer::tests::lexes_double_colon ... ok
[INFO] [stdout] test lexer::tests::lexes_equals ... ok
[INFO] [stdout] test lexer::tests::lexes_fn ... ok
[INFO] [stdout] test lexer::tests::lexes_let ... ok
[INFO] [stdout] test lexer::tests::lexes_nothing ... ok
[INFO] [stdout] test lexer::tests::lexes_open_brace ... ok
[INFO] [stdout] test lexer::tests::lexes_semicolon ... ok
[INFO] [stdout] test lexer::tests::lexes_open_paren ... ok
[INFO] [stdout] test lexer::tests::lexes_struct ... ok
[INFO] [stdout] test lexer::tests::lexes_thin_arrow ... ok
[INFO] [stdout] test lexer::tests::lexes_trait ... ok
[INFO] [stdout] test lexer::tests::lifetimes_are_snake_case_with_quote ... ok
[INFO] [stdout] test lexer::tests::lifetimes_can_start_with_an_underscore ... ok
[INFO] [stdout] test lexer::tests::lifetimes_cannot_start_with_number ... ok
[INFO] [stdout] test lexer::tests::skips_carriage_returns ... ok
[INFO] [stdout] test lexer::tests::skips_line_feeds ... ok
[INFO] [stdout] test lexer::tests::skips_spaces ... ok
[INFO] [stdout] test lexer::tests::skips_tabs ... ok
[INFO] [stdout] test lexer::tests::types_are_pascal_case ... ok
[INFO] [stdout] test lexer::tests::types_can_start_with_an_underscore ... ok
[INFO] [stdout] test lexer::tests::types_cannot_start_with_number ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_one_statement ... ok
[INFO] [stdout] test grammar::expr::tests::parses_tuple_with_unclosed_paren ... ok
[INFO] [stdout] test grammar::item::struct_::tests::parses_unit_struct ... ok
[INFO] [stdout] test grammar::item::tests::eats_errors_until_close_brace ... ok
[INFO] [stdout] test grammar::item::tests::eats_errors_until_finds_valid_keyword ... ok
[INFO] [stdout] test grammar::expr::tests::parses_empty_tuple ... ok
[INFO] [stdout] test grammar::item::fn_::tests::return_type_arrow_without_type_is_error ... ok
[INFO] [stdout] test grammar::expr::tests::parses_one_element_tuple ... ok
[INFO] [stdout] test grammar::item::fn_::tests::parses_fn_def_with_empty_body ... ok
[INFO] [stdout] test grammar::item::fn_::tests::parses_fn_def_with_semicolon_instead_of_body ... ok
[INFO] [stdout] test grammar::expr::tests::parses_function_call ... ok
[INFO] [stderr]    Doc-tests syntax-rust
[INFO] [stdout] test grammar::expr::tests::parses_two_element_tuple_without_trailing_comma ... ok
[INFO] [stdout] test grammar::expr::tests::parses_parenthesised_expression ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_unclosed_brace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 54 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[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" "cd180f74aede25158a63ed54dfe32d6353c88651f13df7ef942c6398e3f40dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd180f74aede25158a63ed54dfe32d6353c88651f13df7ef942c6398e3f40dc1", kill_on_drop: false }`
[INFO] [stdout] cd180f74aede25158a63ed54dfe32d6353c88651f13df7ef942c6398e3f40dc1