[INFO] crate biscuit-auth 0.5.0 is already in cache
[INFO] checking biscuit-auth-0.5.0 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate biscuit-auth 0.5.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate biscuit-auth 0.5.0 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate biscuit-auth 0.5.0
[INFO] finished tweaking crates.io crate biscuit-auth 0.5.0
[INFO] tweaked toml for crates.io crate biscuit-auth 0.5.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate biscuit-auth 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bf75c607c8d71c690659faa755956332f46992354952557a0de8e7daf768bcb4
[INFO] running `"docker" "start" "-a" "bf75c607c8d71c690659faa755956332f46992354952557a0de8e7daf768bcb4"`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]    Compiling biscuit-auth v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking hex v0.4.1
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]    Compiling backtrace v0.3.44
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking nom v5.1.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking curve25519-dalek v2.0.0
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking prost v0.5.0
[INFO] [stderr]     Checking prost-types v0.5.0
[INFO] [stderr] warning: method is never used: `check`
[INFO] [stderr]    --> src/token/mod.rs:373:5
[INFO] [stderr]     |
[INFO] [stderr] 373 | /     pub(crate) fn check(
[INFO] [stderr] 374 | |         &self,
[INFO] [stderr] 375 | |         symbols: &SymbolTable,
[INFO] [stderr] 376 | |         mut ambient_facts: Vec<Fact>,
[INFO] [stderr] ...   |
[INFO] [stderr] 472 | |         }
[INFO] [stderr] 473 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `check`
[INFO] [stderr]    --> src/token/mod.rs:653:5
[INFO] [stderr]     |
[INFO] [stderr] 653 | /     fn check(
[INFO] [stderr] 654 | |         &self,
[INFO] [stderr] 655 | |         i: usize,
[INFO] [stderr] 656 | |         mut world: World,
[INFO] [stderr] ...   |
[INFO] [stderr] 736 | |         }
[INFO] [stderr] 737 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> benches/token.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let data = token.to_vec().unwrap();
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> benches/token.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let data = token2.to_vec().unwrap();
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> benches/token.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |     let data = token5.to_vec().unwrap();
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base_data`
[INFO] [stderr]    --> benches/token.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 137 |     let base_data = token.to_vec().unwrap();
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base_data`
[INFO] [stderr]    --> benches/token.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |     let base_data = token.to_vec().unwrap();
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base_data`
[INFO] [stderr]    --> benches/token.rs:236:9
[INFO] [stderr]     |
[INFO] [stderr] 236 |     let base_data = token.to_vec().unwrap();
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base_data`
[INFO] [stderr]    --> benches/token.rs:275:9
[INFO] [stderr]     |
[INFO] [stderr] 275 |     let base_data = token.to_vec().unwrap();
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base_data`
[INFO] [stderr]    --> benches/token.rs:328:9
[INFO] [stderr]     |
[INFO] [stderr] 328 |     let base_data = token.to_vec().unwrap();
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `verifier`
[INFO] [stderr]    --> benches/token.rs:386:13
[INFO] [stderr]     |
[INFO] [stderr] 386 |     let mut verifier = token.verify(root.public()).unwrap();
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verifier`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base_data`
[INFO] [stderr]    --> benches/token.rs:367:9
[INFO] [stderr]     |
[INFO] [stderr] 367 |     let base_data = token.to_vec().unwrap();
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base_data`
[INFO] [stderr]    --> benches/token.rs:403:9
[INFO] [stderr]     |
[INFO] [stderr] 403 |     let base_data = token.to_vec().unwrap();
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_data`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> benches/token.rs:386:9
[INFO] [stderr]     |
[INFO] [stderr] 386 |     let mut verifier = token.verify(root.public()).unwrap();
[INFO] [stderr]     |         ----^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |   builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:44:3
[INFO] [stderr]    |
[INFO] [stderr] 44 |   builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |   builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:81:3
[INFO] [stderr]    |
[INFO] [stderr] 81 |   builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:82:3
[INFO] [stderr]    |
[INFO] [stderr] 82 |   builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/token.rs:83:3
[INFO] [stderr]    |
[INFO] [stderr] 83 |   builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:133:5
[INFO] [stderr]     |
[INFO] [stderr] 133 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:231:5
[INFO] [stderr]     |
[INFO] [stderr] 231 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:232:5
[INFO] [stderr]     |
[INFO] [stderr] 232 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:233:5
[INFO] [stderr]     |
[INFO] [stderr] 233 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:271:5
[INFO] [stderr]     |
[INFO] [stderr] 271 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:324:5
[INFO] [stderr]     |
[INFO] [stderr] 324 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:325:5
[INFO] [stderr]     |
[INFO] [stderr] 325 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:362:5
[INFO] [stderr]     |
[INFO] [stderr] 362 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:363:5
[INFO] [stderr]     |
[INFO] [stderr] 363 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:364:5
[INFO] [stderr]     |
[INFO] [stderr] 364 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:398:5
[INFO] [stderr]     |
[INFO] [stderr] 398 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:399:5
[INFO] [stderr]     |
[INFO] [stderr] 399 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file2"), s("read")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/token.rs:400:5
[INFO] [stderr]     |
[INFO] [stderr] 400 |     builder.add_authority_fact(fact("right", &[s("authority"), string("file1"), s("write")],));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `check`
[INFO] [stderr]    --> src/token/mod.rs:653:5
[INFO] [stderr]     |
[INFO] [stderr] 653 | /     fn check(
[INFO] [stderr] 654 | |         &self,
[INFO] [stderr] 655 | |         i: usize,
[INFO] [stderr] 656 | |         mut world: World,
[INFO] [stderr] ...   |
[INFO] [stderr] 736 | |         }
[INFO] [stderr] 737 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/token/mod.rs:1177:9
[INFO] [stderr]      |
[INFO] [stderr] 1177 | /         builder.add_authority_caveat(rule(
[INFO] [stderr] 1178 | |             "caveat1",
[INFO] [stderr] 1179 | |             &[s("test")],
[INFO] [stderr] 1180 | |             &[
[INFO] [stderr] 1181 | |                 pred("resource", &[s("ambient"), s("hello")]),
[INFO] [stderr] 1182 | |             ],
[INFO] [stderr] 1183 | |         ));
[INFO] [stderr]      | |___________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.38s
[INFO] running `"docker" "inspect" "bf75c607c8d71c690659faa755956332f46992354952557a0de8e7daf768bcb4"`
[INFO] running `"docker" "rm" "-f" "bf75c607c8d71c690659faa755956332f46992354952557a0de8e7daf768bcb4"`
[INFO] [stdout] bf75c607c8d71c690659faa755956332f46992354952557a0de8e7daf768bcb4
