[INFO] fetching crate markov_namegen 0.2.1...
[INFO] checking markov_namegen-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate markov_namegen 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate markov_namegen 0.2.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate markov_namegen 0.2.1
[INFO] finished tweaking crates.io crate markov_namegen 0.2.1
[INFO] tweaked toml for crates.io crate markov_namegen 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate markov_namegen 0.2.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded is-vowel v0.1.0
[INFO] [stderr]   Downloaded once_cell v1.17.1
[INFO] [stderr]   Downloaded multimarkov v0.3.2
[INFO] [stderr]   Downloaded libc v0.2.142
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 121ebd11b335f415a43390c537143e7bf5a06b92f240b27f708780b3d2f1480e
[INFO] running `Command { std: "docker" "start" "-a" "121ebd11b335f415a43390c537143e7bf5a06b92f240b27f708780b3d2f1480e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "121ebd11b335f415a43390c537143e7bf5a06b92f240b27f708780b3d2f1480e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "121ebd11b335f415a43390c537143e7bf5a06b92f240b27f708780b3d2f1480e", kill_on_drop: false }`
[INFO] [stdout] 121ebd11b335f415a43390c537143e7bf5a06b92f240b27f708780b3d2f1480e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1350c1178cb05cd2c8aced468fc4c0ed51aa33de4c526dcdf32fece20f2ea7b0
[INFO] running `Command { std: "docker" "start" "-a" "1350c1178cb05cd2c8aced468fc4c0ed51aa33de4c526dcdf32fece20f2ea7b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking is-vowel v0.1.0
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking multimarkov v0.3.2
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking markov_namegen v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::RandomTextGenerator`
[INFO] [stdout]    --> src/clusterchain/builder.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |     use crate::RandomTextGenerator;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]   --> src/characterchain/builder.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let generator = CharacterChainGenerator::builder().with_order(2).with_prior(0.007).with_pattern("foo").build();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]   --> src/characterchain/builder.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let generator = CharacterChainGenerator::builder().with_order(0).build();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]    --> src/characterchain/builder.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let generator = CharacterChainGenerator::builder().train(inputs).build();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]    --> src/clusterchain/builder.rs:152:13
[INFO] [stdout]     |
[INFO] [stdout] 152 |         let generator = ClusterChainGenerator::builder().with_order(2).with_prior(0.007).with_pattern("foo").build();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]    --> src/clusterchain/builder.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let generator = ClusterChainGenerator::builder().with_order(0).build();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]    --> src/clusterchain/builder.rs:165:13
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let generator = ClusterChainGenerator::builder().train(inputs).build();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]   --> src/characterchain/builder.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let generator = CharacterChainGenerator::builder().with_order(2).with_prior(0.007).with_pattern("foo").build();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]   --> src/characterchain/builder.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let generator = CharacterChainGenerator::builder().with_order(0).build();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]    --> src/characterchain/builder.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let generator = CharacterChainGenerator::builder().train(inputs).build();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `without_prior` is never used
[INFO] [stdout]   --> src/characterchain/builder.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'a> CharacterChainGeneratorBuilder<'a> {
[INFO] [stdout]    | ------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn without_prior(mut self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `without_prior` is never used
[INFO] [stdout]   --> src/characterchain/builder.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'a> CharacterChainGeneratorBuilder<'a> {
[INFO] [stdout]    | ------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn without_prior(mut self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "1350c1178cb05cd2c8aced468fc4c0ed51aa33de4c526dcdf32fece20f2ea7b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1350c1178cb05cd2c8aced468fc4c0ed51aa33de4c526dcdf32fece20f2ea7b0", kill_on_drop: false }`
[INFO] [stdout] 1350c1178cb05cd2c8aced468fc4c0ed51aa33de4c526dcdf32fece20f2ea7b0