[INFO] fetching crate syntax-rust 0.4.1...
[INFO] testing syntax-rust-0.4.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate syntax-rust 0.4.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate syntax-rust 0.4.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95ebdc75dfb0f95e3079b172767d79db258b0bde23df9513baf1efe332ba6f59
[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" "95ebdc75dfb0f95e3079b172767d79db258b0bde23df9513baf1efe332ba6f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95ebdc75dfb0f95e3079b172767d79db258b0bde23df9513baf1efe332ba6f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ebdc75dfb0f95e3079b172767d79db258b0bde23df9513baf1efe332ba6f59", kill_on_drop: false }`
[INFO] [stdout] 95ebdc75dfb0f95e3079b172767d79db258b0bde23df9513baf1efe332ba6f59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bb88f65200353a310a539257666b209df1b3fa764f6cefe5ec968a07c0e88a7
[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" "0bb88f65200353a310a539257666b209df1b3fa764f6cefe5ec968a07c0e88a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling smol_str v0.1.21
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling logos-derive v0.11.5
[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 34.23s
[INFO] running `Command { std: "docker" "inspect" "0bb88f65200353a310a539257666b209df1b3fa764f6cefe5ec968a07c0e88a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb88f65200353a310a539257666b209df1b3fa764f6cefe5ec968a07c0e88a7", kill_on_drop: false }`
[INFO] [stdout] 0bb88f65200353a310a539257666b209df1b3fa764f6cefe5ec968a07c0e88a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] 4302b4b48a4584993f6a1cfc03b1e51e05bfd956b94667b74c64fb6e17deec15
[INFO] running `Command { std: "docker" "start" "-a" "4302b4b48a4584993f6a1cfc03b1e51e05bfd956b94667b74c64fb6e17deec15", kill_on_drop: false }`
[INFO] [stderr]    Compiling ansi_term v0.11.0
[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 3.14s
[INFO] running `Command { std: "docker" "inspect" "4302b4b48a4584993f6a1cfc03b1e51e05bfd956b94667b74c64fb6e17deec15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4302b4b48a4584993f6a1cfc03b1e51e05bfd956b94667b74c64fb6e17deec15", kill_on_drop: false }`
[INFO] [stdout] 4302b4b48a4584993f6a1cfc03b1e51e05bfd956b94667b74c64fb6e17deec15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] f1a80fe400ebfd53b356f867ed6ce3aa3a058e8a8f367ff7b7644884351f5636
[INFO] running `Command { std: "docker" "start" "-a" "f1a80fe400ebfd53b356f867ed6ce3aa3a058e8a8f367ff7b7644884351f5636", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/syntax_rust-b43f0e60dcf6370d)
[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_statement ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_one_expression ... ok
[INFO] [stdout] test grammar::item::tests::parses_function ... ok
[INFO] [stdout] test grammar::item::tests::eats_errors_until_close_brace ... ok
[INFO] [stdout] test grammar::item::fn_::tests::parses_fn_def_with_empty_body ... ok
[INFO] [stdout] test grammar::item::struct_::tests::parses_unit_struct ... ok
[INFO] [stdout] test grammar::item::tests::parses_struct ... ok
[INFO] [stdout] test grammar::item::tests::parses_trait ... ok
[INFO] [stdout] test grammar::expr::tests::parses_var_usage ... 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_open_paren ... ok
[INFO] [stdout] test lexer::tests::lexes_semicolon ... 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::item::fn_::tests::parses_fn_def_with_semicolon_instead_of_body ... ok
[INFO] [stdout] test grammar::item::tests::eats_errors_until_finds_valid_keyword ... ok
[INFO] [stdout] test grammar::item::fn_::tests::parses_fn_def_with_return_type ... 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::block::tests::parses_block_with_unclosed_brace ... ok
[INFO] [stdout] test grammar::expr::tests::parses_function_call ... ok
[INFO] [stdout] test grammar::expr::tests::parses_parenthesised_expression ... ok
[INFO] [stdout] test grammar::expr::tests::parses_two_element_tuple_without_trailing_comma ... ok
[INFO] [stdout] test grammar::expr::tests::parses_tuple_with_unclosed_paren ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 54 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests syntax-rust
[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" "f1a80fe400ebfd53b356f867ed6ce3aa3a058e8a8f367ff7b7644884351f5636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1a80fe400ebfd53b356f867ed6ce3aa3a058e8a8f367ff7b7644884351f5636", kill_on_drop: false }`
[INFO] [stdout] f1a80fe400ebfd53b356f867ed6ce3aa3a058e8a8f367ff7b7644884351f5636