[INFO] fetching crate random_name_generator 0.3.6...
[INFO] checking random_name_generator-0.3.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate random_name_generator 0.3.6 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate random_name_generator 0.3.6
[INFO] finished tweaking crates.io crate random_name_generator 0.3.6
[INFO] tweaked toml for crates.io crate random_name_generator 0.3.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate random_name_generator 0.3.6 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate random_name_generator 0.3.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcbfec4c93834c7262232ea71cd05b8f493f679249fcd23bbb9f5f4115a7d898
[INFO] running `Command { std: "docker" "start" "-a" "dcbfec4c93834c7262232ea71cd05b8f493f679249fcd23bbb9f5f4115a7d898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcbfec4c93834c7262232ea71cd05b8f493f679249fcd23bbb9f5f4115a7d898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcbfec4c93834c7262232ea71cd05b8f493f679249fcd23bbb9f5f4115a7d898", kill_on_drop: false }`
[INFO] [stdout] dcbfec4c93834c7262232ea71cd05b8f493f679249fcd23bbb9f5f4115a7d898
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c05b4334f8ca3828f439c654d160d8f3a97a1de1999a29b35848903010aba4ba
[INFO] running `Command { std: "docker" "start" "-a" "c05b4334f8ca3828f439c654d160d8f3a97a1de1999a29b35848903010aba4ba", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling rustix v0.38.13
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.7
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]    Compiling syn v2.0.35
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking anstyle v1.0.3
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking clap_builder v4.4.2
[INFO] [stderr]     Checking half v1.8.2
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[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking joinery v2.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling relative-path v1.9.0
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[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking criterion-plot v0.5.0
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[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.2.0
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]     Checking titlecase v2.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]    Compiling rust-embed-impl v8.0.0
[INFO] [stderr]     Checking rust-embed v8.0.0
[INFO] [stderr]     Checking clap v4.4.3
[INFO] [stderr]     Checking random_name_generator v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.188
[INFO] [stdout] warning: struct `BadSyllable` is never constructed
[INFO] [stdout]    --> src/rng_syllable.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct BadSyllable;
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stderr]     Checking serde_json v1.0.107
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: struct `BadSyllable` is never constructed
[INFO] [stdout]    --> src/rng_syllable.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct BadSyllable;
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<RNG, Infallible>
[INFO] [stdout]    --> src/lib.rs:244:19
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let rng = RNG::try_from(&Language::Fantasy).unwrap();
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<RNG, Infallible>
[INFO] [stdout]    --> src/lib.rs:265:22
[INFO] [stdout]     |
[INFO] [stdout] 265 |         let result = RNG::try_from(&Language::Goblin).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<RNG, Infallible>
[INFO] [stdout]    --> src/lib.rs:276:22
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let result = RNG::try_from(&Language::Roman).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<RNG, Infallible>
[INFO] [stdout]    --> src/lib.rs:287:22
[INFO] [stdout]     |
[INFO] [stdout] 287 |         let result = RNG::try_from(&Language::Фантазия).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<RNG, Infallible>
[INFO] [stdout]    --> src/lib.rs:413:19
[INFO] [stdout]     |
[INFO] [stdout] 413 |         let rng = RNG::try_from(&Language::Roman).unwrap();
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<RNG, Infallible>
[INFO] [stdout]    --> src/lib.rs:422:19
[INFO] [stdout]     |
[INFO] [stdout] 422 |         let rng = RNG::try_from(&Language::Demonic).unwrap();
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<RNG, Infallible>
[INFO] [stdout]    --> src/lib.rs:461:19
[INFO] [stdout]     |
[INFO] [stdout] 461 |         let rng = RNG::try_from(&Language::Elven).unwrap();
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<RNG, Infallible>
[INFO] [stdout]    --> src/lib.rs:581:23
[INFO] [stdout]     |
[INFO] [stdout] 581 |             let rng = RNG::try_from(&language).unwrap();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `random_name_generator` (lib test) due to 8 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "c05b4334f8ca3828f439c654d160d8f3a97a1de1999a29b35848903010aba4ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c05b4334f8ca3828f439c654d160d8f3a97a1de1999a29b35848903010aba4ba", kill_on_drop: false }`
[INFO] [stdout] c05b4334f8ca3828f439c654d160d8f3a97a1de1999a29b35848903010aba4ba