[INFO] fetching crate docuglot 0.7.0...
[INFO] checking docuglot-0.7.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate docuglot 0.7.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate docuglot 0.7.0 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 docuglot 0.7.0
[INFO] finished tweaking crates.io crate docuglot 0.7.0
[INFO] tweaked toml for crates.io crate docuglot 0.7.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 45 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cur v0.4.0 (latest: v0.5.0)
[INFO] [stderr]       Adding cur_macro v0.4.0 (latest: v0.5.0)
[INFO] [stderr]       Adding lsp-types v0.88.0 (latest: v0.95.1)
[INFO] [stderr]       Adding market v0.26.0 (latest: v0.30.1)
[INFO] [stderr]       Adding parse-display v0.1.2 (latest: v0.9.0)
[INFO] [stderr]       Adding parse-display-derive v0.1.2 (latest: v0.9.0)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.3)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded parse-display-derive v0.1.2
[INFO] [stderr]   Downloaded fehler-macros v1.0.0
[INFO] [stderr]   Downloaded fehler v1.0.0
[INFO] [stderr]   Downloaded market_derive v0.1.0
[INFO] [stderr]   Downloaded parse-display v0.1.2
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.11
[INFO] [stderr]   Downloaded lsp-types v0.88.0
[INFO] [stderr]   Downloaded cur_macro v0.4.0
[INFO] [stderr]   Downloaded cur v0.4.0
[INFO] [stderr]   Downloaded market v0.26.0
[INFO] [stderr]   Downloaded conventus v0.3.0
[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] a757281578d2cabb384aa73c1524563f8ec9e85faea18ce7e2800b1586a9d92f
[INFO] running `Command { std: "docker" "start" "-a" "a757281578d2cabb384aa73c1524563f8ec9e85faea18ce7e2800b1586a9d92f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a757281578d2cabb384aa73c1524563f8ec9e85faea18ce7e2800b1586a9d92f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a757281578d2cabb384aa73c1524563f8ec9e85faea18ce7e2800b1586a9d92f", kill_on_drop: false }`
[INFO] [stdout] a757281578d2cabb384aa73c1524563f8ec9e85faea18ce7e2800b1586a9d92f
[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] 8800a547d5ba0d3c4c71f32d2f2458abb959eff81da019f28696e98658032a68
[INFO] running `Command { std: "docker" "start" "-a" "8800a547d5ba0d3c4c71f32d2f2458abb959eff81da019f28696e98658032a68", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling parse-display-derive v0.1.2
[INFO] [stderr]    Compiling market_derive v0.1.0
[INFO] [stderr]    Compiling cur_macro v0.4.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking cur v0.4.0
[INFO] [stderr]     Checking lsp-types v0.88.0
[INFO] [stderr]     Checking fehler v1.0.0
[INFO] [stderr]     Checking parse-display v0.1.2
[INFO] [stderr]     Checking conventus v0.3.0
[INFO] [stderr]     Checking market v0.26.0
[INFO] [stderr]     Checking docuglot v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `status_consumer` is never read
[INFO] [stdout]   --> src/lib.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct Tongue {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 64 |     status_consumer: CrossbeamConsumer<ExitStatus>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tongue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `status_consumer` is never read
[INFO] [stdout]   --> src/lib.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct Tongue {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 64 |     status_consumer: CrossbeamConsumer<ExitStatus>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tongue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 21.35s
[INFO] running `Command { std: "docker" "inspect" "8800a547d5ba0d3c4c71f32d2f2458abb959eff81da019f28696e98658032a68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8800a547d5ba0d3c4c71f32d2f2458abb959eff81da019f28696e98658032a68", kill_on_drop: false }`
[INFO] [stdout] 8800a547d5ba0d3c4c71f32d2f2458abb959eff81da019f28696e98658032a68