[INFO] fetching crate syntax-rust 0.4.1...
[INFO] testing syntax-rust-0.4.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate syntax-rust 0.4.1 into /workspace/builds/worker-6-tc2/source
[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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syntax-rust 0.4.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 30 packages to latest compatible versions
[INFO] [stderr]       Adding logos v0.11.4 (available: v0.15.1)
[INFO] [stderr]       Adding pretty_assertions v0.6.1 (available: v1.4.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4befbf2f1fc649b749a1cbb37c7e03137a58043ca15e50e34e0100a5c686019c
[INFO] running `Command { std: "docker" "start" "-a" "4befbf2f1fc649b749a1cbb37c7e03137a58043ca15e50e34e0100a5c686019c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4befbf2f1fc649b749a1cbb37c7e03137a58043ca15e50e34e0100a5c686019c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4befbf2f1fc649b749a1cbb37c7e03137a58043ca15e50e34e0100a5c686019c", kill_on_drop: false }`
[INFO] [stdout] 4befbf2f1fc649b749a1cbb37c7e03137a58043ca15e50e34e0100a5c686019c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4a3f333d0e14dac2e46a14c0a75e00e61d0dbc375d542f44d0408210bc70f7c
[INFO] running `Command { std: "docker" "start" "-a" "a4a3f333d0e14dac2e46a14c0a75e00e61d0dbc375d542f44d0408210bc70f7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling smol_str v0.1.24
[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` profile [unoptimized + debuginfo] target(s) in 7.47s
[INFO] running `Command { std: "docker" "inspect" "a4a3f333d0e14dac2e46a14c0a75e00e61d0dbc375d542f44d0408210bc70f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4a3f333d0e14dac2e46a14c0a75e00e61d0dbc375d542f44d0408210bc70f7c", kill_on_drop: false }`
[INFO] [stdout] a4a3f333d0e14dac2e46a14c0a75e00e61d0dbc375d542f44d0408210bc70f7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a48f8632583d35812fbe66914c917fc14594f864100f082dfa07dcc080a853d
[INFO] running `Command { std: "docker" "start" "-a" "9a48f8632583d35812fbe66914c917fc14594f864100f082dfa07dcc080a853d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ansi_term v0.11.0
[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` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "9a48f8632583d35812fbe66914c917fc14594f864100f082dfa07dcc080a853d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a48f8632583d35812fbe66914c917fc14594f864100f082dfa07dcc080a853d", kill_on_drop: false }`
[INFO] [stdout] 9a48f8632583d35812fbe66914c917fc14594f864100f082dfa07dcc080a853d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c9076fc38224e037344cddd3da68a1bddd4cdf257810a852f65d064ff0b220bd
[INFO] running `Command { std: "docker" "start" "-a" "c9076fc38224e037344cddd3da68a1bddd4cdf257810a852f65d064ff0b220bd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/syntax_rust-6956da9e6981ae23)
[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_one_expression ... ok
[INFO] [stdout] test grammar::expr::tests::parses_empty_tuple ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_unclosed_brace ... ok
[INFO] [stdout] test grammar::expr::tests::parses_parenthesised_expression ... ok
[INFO] [stdout] test grammar::expr::tests::parses_tuple_with_unclosed_paren ... ok
[INFO] [stdout] test grammar::expr::tests::parses_function_call ... ok
[INFO] [stdout] test grammar::expr::tests::parses_two_element_tuple_without_trailing_comma ... ok
[INFO] [stdout] test grammar::item::fn_::tests::return_type_arrow_without_type_is_error ... ok
[INFO] [stdout] test grammar::expr::tests::parses_var_usage ... 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_return_type ... ok
[INFO] [stdout] test grammar::expr::tests::parses_one_element_tuple ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_one_statement ... 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::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 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::stmt::tests::parses_let_statement ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_expression_that_throws_away_result_through_semicolon ... ok
[INFO] [stderr]    Doc-tests syntax_rust
[INFO] [stdout] test grammar::item::fn_::tests::parses_fn_def_with_semicolon_instead_of_body ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 54 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "c9076fc38224e037344cddd3da68a1bddd4cdf257810a852f65d064ff0b220bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9076fc38224e037344cddd3da68a1bddd4cdf257810a852f65d064ff0b220bd", kill_on_drop: false }`
[INFO] [stdout] c9076fc38224e037344cddd3da68a1bddd4cdf257810a852f65d064ff0b220bd