[INFO] fetching crate deepviewrt 0.5.0...
[INFO] checking deepviewrt-0.5.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate deepviewrt 0.5.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate deepviewrt 0.5.0 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 deepviewrt 0.5.0
[INFO] finished tweaking crates.io crate deepviewrt 0.5.0
[INFO] tweaked toml for crates.io crate deepviewrt 0.5.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages
[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 }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded deepviewrt-sys v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8872a93859fbfdc5bd8f0752606e609180f2a0be74bb5ddaba3ecdaca1c0bbc8
[INFO] running `Command { std: "docker" "start" "-a" "8872a93859fbfdc5bd8f0752606e609180f2a0be74bb5ddaba3ecdaca1c0bbc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8872a93859fbfdc5bd8f0752606e609180f2a0be74bb5ddaba3ecdaca1c0bbc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8872a93859fbfdc5bd8f0752606e609180f2a0be74bb5ddaba3ecdaca1c0bbc8", kill_on_drop: false }`
[INFO] [stdout] 8872a93859fbfdc5bd8f0752606e609180f2a0be74bb5ddaba3ecdaca1c0bbc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0a4029eddfc903fb24ecd813be66d847d431dfe91519966af177bcafa266b4ad
[INFO] running `Command { std: "docker" "start" "-a" "0a4029eddfc903fb24ecd813be66d847d431dfe91519966af177bcafa266b4ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling deepviewrt-sys v0.5.0
[INFO] [stderr]     Checking deepviewrt v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]   --> src/context.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         if !self.model.as_ptr().is_null() {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(useless_ptr_null_checks)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]   --> src/context.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         if !self.model.as_ptr().is_null() {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(useless_ptr_null_checks)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "0a4029eddfc903fb24ecd813be66d847d431dfe91519966af177bcafa266b4ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a4029eddfc903fb24ecd813be66d847d431dfe91519966af177bcafa266b4ad", kill_on_drop: false }`
[INFO] [stdout] 0a4029eddfc903fb24ecd813be66d847d431dfe91519966af177bcafa266b4ad