[INFO] fetching crate syntax-rust 0.4.1...
[INFO] testing syntax-rust-0.4.1 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[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 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", 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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23fa3bebd74dcadaf6e29b34fa1cff446640c44a831cd1c148fd181b7cbee1de
[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" "23fa3bebd74dcadaf6e29b34fa1cff446640c44a831cd1c148fd181b7cbee1de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23fa3bebd74dcadaf6e29b34fa1cff446640c44a831cd1c148fd181b7cbee1de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23fa3bebd74dcadaf6e29b34fa1cff446640c44a831cd1c148fd181b7cbee1de", kill_on_drop: false }`
[INFO] [stdout] 23fa3bebd74dcadaf6e29b34fa1cff446640c44a831cd1c148fd181b7cbee1de
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--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] 05de39aeaeced907f17a5489190a166ca27facb91c7fde3244ccccc9baf3ae9c
[INFO] running `Command { std: "docker" "start" "-a" "05de39aeaeced907f17a5489190a166ca27facb91c7fde3244ccccc9baf3ae9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling smol_str v0.1.17
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling quote v1.0.7
[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 37.40s
[INFO] running `Command { std: "docker" "inspect" "05de39aeaeced907f17a5489190a166ca27facb91c7fde3244ccccc9baf3ae9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05de39aeaeced907f17a5489190a166ca27facb91c7fde3244ccccc9baf3ae9c", kill_on_drop: false }`
[INFO] [stdout] 05de39aeaeced907f17a5489190a166ca27facb91c7fde3244ccccc9baf3ae9c
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 76706dc726ea0afcc18d784e451c81e253b3480a7c1cfe0fca170b0fb08a7925
[INFO] running `Command { std: "docker" "start" "-a" "76706dc726ea0afcc18d784e451c81e253b3480a7c1cfe0fca170b0fb08a7925", kill_on_drop: false }`
[INFO] [stderr]    Compiling syntax-rust v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "76706dc726ea0afcc18d784e451c81e253b3480a7c1cfe0fca170b0fb08a7925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76706dc726ea0afcc18d784e451c81e253b3480a7c1cfe0fca170b0fb08a7925", kill_on_drop: false }`
[INFO] [stdout] 76706dc726ea0afcc18d784e451c81e253b3480a7c1cfe0fca170b0fb08a7925
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c54b13b69a06293ba4a3aeba24ac82d0f1a30bbafd12640e3d6e21719a9e92ff
[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" "c54b13b69a06293ba4a3aeba24ac82d0f1a30bbafd12640e3d6e21719a9e92ff", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/syntax_rust-695ffc4f1052392f
[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::item::fn_::tests::parses_fn_def_with_return_type ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_unclosed_brace ... ok
[INFO] [stdout] test grammar::item::fn_::tests::parses_fn_def_with_empty_body ... ok
[INFO] [stdout] test grammar::expr::tests::parses_function_call ... ok
[INFO] [stdout] test grammar::block::tests::parses_block_with_one_statement ... ok
[INFO] [stdout] test grammar::item::tests::eats_errors_until_close_brace ... ok
[INFO] [stdout] test grammar::item::fn_::tests::parses_fn_def_with_semicolon_instead_of_body ... 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_tuple_with_unclosed_paren ... ok
[INFO] [stdout] test grammar::item::struct_::tests::parses_unit_struct ... ok
[INFO] [stdout] test grammar::expr::tests::parses_two_element_tuple_without_trailing_comma ... ok
[INFO] [stdout] test grammar::item::tests::parses_struct ... ok
[INFO] [stdout] test lexer::tests::idents_can_start_with_an_underscore ... ok
[INFO] [stdout] test grammar::item::tests::parses_function ... ok
[INFO] [stdout] test grammar::item::tests::eats_errors_until_finds_valid_keyword ... ok
[INFO] [stdout] test grammar::expr::tests::parses_parenthesised_expression ... ok
[INFO] [stdout] test grammar::expr::tests::parses_one_element_tuple ... ok
[INFO] [stdout] test grammar::stmt::tests::parses_let_statement ... ok
[INFO] [stdout] test grammar::item::trait_::tests::parses_trait_with_no_items ... ok
[INFO] [stdout] test lexer::tests::idents_are_snake_case ... ok
[INFO] [stdout] test grammar::expr::tests::parses_var_usage ... ok
[INFO] [stdout] test lexer::tests::lexes_close_brace ... 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 lexer::tests::lexes_open_paren ... ok
[INFO] [stdout] test lexer::tests::lexes_semicolon ... 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 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::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::lexes_close_paren ... ok
[INFO] [stdout] test lexer::tests::lexes_comma ... ok
[INFO] [stdout] test lexer::tests::skips_tabs ... ok
[INFO] [stdout] test lexer::tests::lexes_double_colon ... ok
[INFO] [stdout] test lexer::tests::types_are_pascal_case ... ok
[INFO] [stdout] test lexer::tests::lexes_equals ... ok
[INFO] [stdout] test lexer::tests::lexes_fn ... ok
[INFO] [stdout] test lexer::tests::types_can_start_with_an_underscore ... ok
[INFO] [stdout] test lexer::tests::lexes_let ... ok
[INFO] [stdout] test lexer::tests::lexes_nothing ... ok
[INFO] [stderr]    Doc-tests syntax-rust
[INFO] [stdout] test lexer::tests::lexes_struct ... ok
[INFO] [stdout] test lexer::tests::types_cannot_start_with_number ... ok
[INFO] [stdout] test lexer::tests::idents_cannot_start_with_number ... ok
[INFO] [stdout] test lexer::tests::lexes_open_brace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 54 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c54b13b69a06293ba4a3aeba24ac82d0f1a30bbafd12640e3d6e21719a9e92ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c54b13b69a06293ba4a3aeba24ac82d0f1a30bbafd12640e3d6e21719a9e92ff", kill_on_drop: false }`
[INFO] [stdout] c54b13b69a06293ba4a3aeba24ac82d0f1a30bbafd12640e3d6e21719a9e92ff