[INFO] fetching crate parce 0.0.1...
[INFO] testing parce-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate parce 0.0.1 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate parce 0.0.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51afb295b7079d9b250e39bd18cc4bd11187d27846c464e4b8ca9e886b246d80
[INFO] running `Command { std: "docker" "start" "-a" "51afb295b7079d9b250e39bd18cc4bd11187d27846c464e4b8ca9e886b246d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51afb295b7079d9b250e39bd18cc4bd11187d27846c464e4b8ca9e886b246d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51afb295b7079d9b250e39bd18cc4bd11187d27846c464e4b8ca9e886b246d80", kill_on_drop: false }`
[INFO] [stdout] 51afb295b7079d9b250e39bd18cc4bd11187d27846c464e4b8ca9e886b246d80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 641956db1336bb4d3493c07504231c9ac6154acef4635d8e67cfceb2166478cd
[INFO] running `Command { std: "docker" "start" "-a" "641956db1336bb4d3493c07504231c9ac6154acef4635d8e67cfceb2166478cd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling check_keyword v0.1.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling typed-arena v2.0.1
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling parce_macros v0.0.1
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]    Compiling parce v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.30s
[INFO] running `Command { std: "docker" "inspect" "641956db1336bb4d3493c07504231c9ac6154acef4635d8e67cfceb2166478cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "641956db1336bb4d3493c07504231c9ac6154acef4635d8e67cfceb2166478cd", kill_on_drop: false }`
[INFO] [stdout] 641956db1336bb4d3493c07504231c9ac6154acef4635d8e67cfceb2166478cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba0b0239239075d3230e4eb17a947131757bc47d0fb827e3388c8d4014a0d56c
[INFO] running `Command { std: "docker" "start" "-a" "ba0b0239239075d3230e4eb17a947131757bc47d0fb827e3388c8d4014a0d56c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     #[lexer(OperatorLexer)]
[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: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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.23s
[INFO] running `Command { std: "docker" "inspect" "ba0b0239239075d3230e4eb17a947131757bc47d0fb827e3388c8d4014a0d56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba0b0239239075d3230e4eb17a947131757bc47d0fb827e3388c8d4014a0d56c", kill_on_drop: false }`
[INFO] [stdout] ba0b0239239075d3230e4eb17a947131757bc47d0fb827e3388c8d4014a0d56c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb0302c638555ab48e6e5f8216f27b85bb124f2fbfc087994f66633bfd555a29
[INFO] running `Command { std: "docker" "start" "-a" "fb0302c638555ab48e6e5f8216f27b85bb124f2fbfc087994f66633bfd555a29", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lexer.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     #[lexer(OperatorLexer)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[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:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     #[lexer(OperatorLexer)]
[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:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     #[lexer(NestingLexer)]
[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:182:5
[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 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parce-aba421224d36ef20)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test lexer::tests::basic_pass ... ok
[INFO] [stdout] test lexer::tests::basic_fail ... ok
[INFO] [stdout] test lexer::tests::change_mode ... ok
[INFO] [stdout] test lexer::tests::empty ... ok
[INFO] [stdout] test lexer::tests::fragment ... ok
[INFO] [stdout] test lexer::tests::nest_and_sequence ... ok
[INFO] [stdout] test lexer::tests::plus ... ok
[INFO] [stdout] test lexer::tests::class ... ok
[INFO] [stdout] test lexer::tests::or ... ok
[INFO] [stdout] test lexer::tests::priority_and_dot ... ok
[INFO] [stdout] test lexer::tests::question ... ok
[INFO] [stdout] test lexer::tests::range ... ok
[INFO] [stdout] test lexer::tests::greedy ... ok
[INFO] [stdout] test lexer::tests::star ... ok
[INFO] [stdout] test parser::tests::and_nesting ... ok
[INFO] [stdout] test lexer::tests::skip ... ok
[INFO] [stdout] test parser::tests::assigned_grammar ... ok
[INFO] [stdout] test parser::tests::bare_named_grammar ... ok
[INFO] [stdout] test parser::tests::basic ... ok
[INFO] [stdout] test parser::tests::dot_and_greedy ... ok
[INFO] [stdout] test parser::tests::bare_unnamed_grammar ... ok
[INFO] [stdout] test parser::tests::or ... ok
[INFO] [stdout] test parser::tests::end_behavior ... ok
[INFO] [stdout] test parser::tests::or_nesting ... ok
[INFO] [stdout] test parser::tests::other_rule ... ok
[INFO] [stdout] test parser::tests::plus ... ok
[INFO] [stdout] test parser::tests::question ... ok
[INFO] [stdout] test parser::tests::star ... ok
[INFO] [stdout] test parser::tests::star_nesting ... ok
[INFO] [stdout] test parser::tests::range ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parce
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/prelude.rs - prelude::lexer (line 25) ... ok
[INFO] [stdout] test src/prelude.rs - prelude::lexer (line 67) ... ok
[INFO] [stdout] test src/prelude.rs - prelude::lexer (line 101) ... ok
[INFO] [stdout] test src/parser/mod.rs - parser::Parseable::commands (line 93) ... ok
[INFO] [stdout] test src/parser/mod.rs - parser::Parseable::last_commands (line 134) ... ok
[INFO] [stdout] test src/prelude.rs - prelude::lexer (line 152) ... ok
[INFO] [stdout] test src/prelude.rs - prelude::lexer (line 181) ... ok
[INFO] [stdout] test src/prelude.rs - prelude::lexer (line 86) ... ok
[INFO] [stdout] test src/prelude.rs - prelude::lexer (line 46) ... ok
[INFO] [stdout] test src/parser/mod.rs - parser::Parse (line 29) ... ok
[INFO] [stdout] test src/prelude.rs - prelude::lexer (line 119) ... ok
[INFO] [stdout] test src/prelude.rs - prelude::lexer (line 134) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.82s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fb0302c638555ab48e6e5f8216f27b85bb124f2fbfc087994f66633bfd555a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb0302c638555ab48e6e5f8216f27b85bb124f2fbfc087994f66633bfd555a29", kill_on_drop: false }`
[INFO] [stdout] fb0302c638555ab48e6e5f8216f27b85bb124f2fbfc087994f66633bfd555a29