[INFO] fetching crate parce 0.0.1...
[INFO] testing parce-0.0.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate parce 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate parce 0.0.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parce 0.0.1
[INFO] finished tweaking crates.io crate parce 0.0.1
[INFO] tweaked toml for crates.io crate parce 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inventory-impl v0.1.11
[INFO] [stderr]   Downloaded inventory v0.1.11
[INFO] [stderr]   Downloaded shrinkwraprs v0.3.0
[INFO] [stderr]   Downloaded typed-arena v2.0.1
[INFO] [stderr]   Downloaded parce_macros v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] 04061ad58d8eb5de4d29d0b6aebbb06406345d302c6986c665039c10dba99b56
[INFO] running `Command { std: "docker" "start" "-a" "04061ad58d8eb5de4d29d0b6aebbb06406345d302c6986c665039c10dba99b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04061ad58d8eb5de4d29d0b6aebbb06406345d302c6986c665039c10dba99b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04061ad58d8eb5de4d29d0b6aebbb06406345d302c6986c665039c10dba99b56", kill_on_drop: false }`
[INFO] [stdout] 04061ad58d8eb5de4d29d0b6aebbb06406345d302c6986c665039c10dba99b56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa71a13d95acb7fc7295af347c17bd4033f8d2d99080a2e43d1b47c225fd04a5
[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" "fa71a13d95acb7fc7295af347c17bd4033f8d2d99080a2e43d1b47c225fd04a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]    Compiling check_keyword v0.1.1
[INFO] [stderr]    Compiling typed-arena v2.0.1
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling parce_macros v0.0.1
[INFO] [stderr]    Compiling parce v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.46s
[INFO] running `Command { std: "docker" "inspect" "fa71a13d95acb7fc7295af347c17bd4033f8d2d99080a2e43d1b47c225fd04a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa71a13d95acb7fc7295af347c17bd4033f8d2d99080a2e43d1b47c225fd04a5", kill_on_drop: false }`
[INFO] [stdout] fa71a13d95acb7fc7295af347c17bd4033f8d2d99080a2e43d1b47c225fd04a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 462878a89ee92121e4c911355dd982649af196b3a87e8a6831cba44bca2c03e9
[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" "462878a89ee92121e4c911355dd982649af196b3a87e8a6831cba44bca2c03e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling parce v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lexer.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     #[lexer(OperatorLexer)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lexer.rs:163:5
[INFO] [stdout]     |
[INFO] [stdout] 163 |     #[lexer(NestingLexer)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lexer.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 182 |     #[lexer(DotLexer)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lexer.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 |     #[lexer(ClassLexer)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lexer.rs:223:5
[INFO] [stdout]     |
[INFO] [stdout] 223 |     #[lexer(GreedyLexer)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lexer.rs:241:5
[INFO] [stdout]     |
[INFO] [stdout] 241 |     #[lexer(OrLexer)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.89s
[INFO] running `Command { std: "docker" "inspect" "462878a89ee92121e4c911355dd982649af196b3a87e8a6831cba44bca2c03e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "462878a89ee92121e4c911355dd982649af196b3a87e8a6831cba44bca2c03e9", kill_on_drop: false }`
[INFO] [stdout] 462878a89ee92121e4c911355dd982649af196b3a87e8a6831cba44bca2c03e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7463f89e8e1bbf96eb5cf5a1183ab4c2c3daaf52531e84610e2a2baa1c0f8e70
[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" "7463f89e8e1bbf96eb5cf5a1183ab4c2c3daaf52531e84610e2a2baa1c0f8e70", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stdout] running 30 tests
[INFO] [stderr]    --> src/lexer.rs:102:5
[INFO] [stdout] test lexer::tests::change_mode ... ok
[INFO] [stderr]     |
[INFO] [stdout] test lexer::tests::plus ... ok
[INFO] [stderr] 102 |     #[lexer(OperatorLexer)]
[INFO] [stdout] test lexer::tests::basic_fail ... ok
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout] test lexer::tests::greedy ... ok
[INFO] [stderr]     |
[INFO] [stdout] test lexer::tests::priority_and_dot ... ok
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] test lexer::tests::question ... ok
[INFO] [stderr]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] test lexer::tests::range ... ok
[INFO] [stderr] 
[INFO] [stdout] test lexer::tests::class ... ok
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stdout] test lexer::tests::empty ... ok
[INFO] [stderr]    --> src/lexer.rs:163:5
[INFO] [stdout] test parser::tests::assigned_grammar ... ok
[INFO] [stderr]     |
[INFO] [stdout] test lexer::tests::skip ... ok
[INFO] [stderr] 163 |     #[lexer(NestingLexer)]
[INFO] [stdout] test parser::tests::and_nesting ... ok
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout] test parser::tests::question ... ok
[INFO] [stderr]     |
[INFO] [stdout] test parser::tests::bare_named_grammar ... ok
[INFO] [stderr]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] test parser::tests::basic ... ok
[INFO] [stderr] 
[INFO] [stdout] test parser::tests::bare_unnamed_grammar ... ok
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stdout] test parser::tests::dot_and_greedy ... ok
[INFO] [stderr]    --> src/lexer.rs:182:5
[INFO] [stdout] test parser::tests::star_nesting ... ok
[INFO] [stderr]     |
[INFO] [stderr] 182 |     #[lexer(DotLexer)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lexer.rs:199:5
[INFO] [stderr]     |
[INFO] [stderr] 199 |     #[lexer(ClassLexer)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lexer.rs:223:5
[INFO] [stderr]     |
[INFO] [stderr] 223 |     #[lexer(GreedyLexer)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lexer.rs:241:5
[INFO] [stderr]     |
[INFO] [stderr] 241 |     #[lexer(OrLexer)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the attribute macro `lexer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `parce` (lib test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parce-b5bba7c858963db8)
[INFO] [stdout] test parser::tests::end_behavior ... ok
[INFO] [stdout] test parser::tests::or ... ok
[INFO] [stdout] test lexer::tests::star ... ok
[INFO] [stdout] test lexer::tests::fragment ... ok
[INFO] [stdout] test lexer::tests::basic_pass ... ok
[INFO] [stdout] test parser::tests::or_nesting ... ok
[INFO] [stdout] test parser::tests::star ... ok
[INFO] [stdout] test parser::tests::plus ... ok
[INFO] [stdout] test parser::tests::other_rule ... ok
[INFO] [stdout] test lexer::tests::nest_and_sequence ... ok
[INFO] [stdout] test parser::tests::range ... ok
[INFO] [stdout] test lexer::tests::or ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parce
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name parce --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern colored=/opt/rustwide/target/debug/deps/libcolored-c9117710933e750c.rlib --extern inventory=/opt/rustwide/target/debug/deps/libinventory-4c0d84c829f6c5b4.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-86422d76b8bd90ed.rlib --extern parce=/opt/rustwide/target/debug/deps/libparce-9b24ebb4cdf31b0a.rlib --extern parce_macros=/opt/rustwide/target/debug/deps/libparce_macros-f757a53179260625.so --extern regex=/opt/rustwide/target/debug/deps/libregex-9b20215a754dc323.rlib --extern shrinkwraprs=/opt/rustwide/target/debug/deps/libshrinkwraprs-b6ff1cc3c8282226.so --extern tinyvec=/opt/rustwide/target/debug/deps/libtinyvec-c348951c3414c332.rlib --extern typed_arena=/opt/rustwide/target/debug/deps/libtyped_arena-b4a2f5fe555ad1a2.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "7463f89e8e1bbf96eb5cf5a1183ab4c2c3daaf52531e84610e2a2baa1c0f8e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7463f89e8e1bbf96eb5cf5a1183ab4c2c3daaf52531e84610e2a2baa1c0f8e70", kill_on_drop: false }`
[INFO] [stdout] 7463f89e8e1bbf96eb5cf5a1183ab4c2c3daaf52531e84610e2a2baa1c0f8e70