[INFO] fetching crate demogorgon 0.2.1...
[INFO] checking demogorgon-0.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate demogorgon 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate demogorgon 0.2.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate demogorgon 0.2.1
[INFO] finished tweaking crates.io crate demogorgon 0.2.1
[INFO] tweaked toml for crates.io crate demogorgon 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate demogorgon 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa18a4f3353e14b81c47c30fa8990710ca203b89d45760924993d6423612a4c0
[INFO] running `Command { std: "docker" "start" "-a" "aa18a4f3353e14b81c47c30fa8990710ca203b89d45760924993d6423612a4c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa18a4f3353e14b81c47c30fa8990710ca203b89d45760924993d6423612a4c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa18a4f3353e14b81c47c30fa8990710ca203b89d45760924993d6423612a4c0", kill_on_drop: false }`
[INFO] [stdout] aa18a4f3353e14b81c47c30fa8990710ca203b89d45760924993d6423612a4c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48f8951ce4f54fb959a68126f1dccba41b9c9684434ab949c042d63fc2162306
[INFO] running `Command { std: "docker" "start" "-a" "48f8951ce4f54fb959a68126f1dccba41b9c9684434ab949c042d63fc2162306", kill_on_drop: false }`
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[INFO] [stderr]     Checking demogorgon v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `id` and `auth_type` are never read
[INFO] [stdout]   --> src/auth/mod.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct Authentication {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 33 |     id: Option<Uuid>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 34 |     auth_type: FrontendAuthType,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Authentication` 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: field `exp` is never read
[INFO] [stdout]   --> src/auth/token.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Claims {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 14 |     sub: Uuid,
[INFO] [stdout] 15 |     exp: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Claims` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `auth_type` are never read
[INFO] [stdout]   --> src/auth/mod.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct Authentication {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 33 |     id: Option<Uuid>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 34 |     auth_type: FrontendAuthType,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Authentication` 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: field `exp` is never read
[INFO] [stdout]   --> src/auth/token.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Claims {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 14 |     sub: Uuid,
[INFO] [stdout] 15 |     exp: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Claims` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.50s
[INFO] running `Command { std: "docker" "inspect" "48f8951ce4f54fb959a68126f1dccba41b9c9684434ab949c042d63fc2162306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48f8951ce4f54fb959a68126f1dccba41b9c9684434ab949c042d63fc2162306", kill_on_drop: false }`
[INFO] [stdout] 48f8951ce4f54fb959a68126f1dccba41b9c9684434ab949c042d63fc2162306