[INFO] fetching crate tensorflow_proto 0.3.0...
[INFO] checking tensorflow_proto-0.3.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate tensorflow_proto 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tensorflow_proto 0.3.0 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 tensorflow_proto 0.3.0
[INFO] finished tweaking crates.io crate tensorflow_proto 0.3.0
[INFO] tweaked toml for crates.io crate tensorflow_proto 0.3.0 written to /workspace/builds/worker-4-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 50 packages
[INFO] [stderr]       Adding fixedbitset v0.2.0 (latest: v0.5.6)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itertools v0.9.0 (latest: v0.12.1)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding multimap v0.8.3 (latest: v0.10.0)
[INFO] [stderr]       Adding petgraph v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding prost v0.7.0 (latest: v0.12.3)
[INFO] [stderr]       Adding prost-build v0.7.0 (latest: v0.12.3)
[INFO] [stderr]       Adding prost-derive v0.7.0 (latest: v0.12.3)
[INFO] [stderr]       Adding prost-types v0.7.0 (latest: v0.12.3)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding which v4.4.2 (latest: v6.0.1)
[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 tensorflow_proto_derive v0.1.0
[INFO] [stderr]   Downloaded prost-derive v0.7.0
[INFO] [stderr]   Downloaded prost v0.7.0
[INFO] [stderr]   Downloaded prost-types v0.7.0
[INFO] [stderr]   Downloaded prost-build v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a8230f15c661ee379d637e4ce60bdf85ec85edeee2e1412646ad50bdc1f042c8
[INFO] running `Command { std: "docker" "start" "-a" "a8230f15c661ee379d637e4ce60bdf85ec85edeee2e1412646ad50bdc1f042c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8230f15c661ee379d637e4ce60bdf85ec85edeee2e1412646ad50bdc1f042c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8230f15c661ee379d637e4ce60bdf85ec85edeee2e1412646ad50bdc1f042c8", kill_on_drop: false }`
[INFO] [stdout] a8230f15c661ee379d637e4ce60bdf85ec85edeee2e1412646ad50bdc1f042c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 09414b6896cc840c169d0e0eb6b0f3f0ad6858cbafb9b7ed90e37ff051358d71
[INFO] running `Command { std: "docker" "start" "-a" "09414b6896cc840c169d0e0eb6b0f3f0ad6858cbafb9b7ed90e37ff051358d71", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling bytes v1.6.0
[INFO] [stderr]    Compiling fastrand v2.0.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]    Compiling tensorflow_proto v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.65s
[INFO] running `Command { std: "docker" "inspect" "09414b6896cc840c169d0e0eb6b0f3f0ad6858cbafb9b7ed90e37ff051358d71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09414b6896cc840c169d0e0eb6b0f3f0ad6858cbafb9b7ed90e37ff051358d71", kill_on_drop: false }`
[INFO] [stdout] 09414b6896cc840c169d0e0eb6b0f3f0ad6858cbafb9b7ed90e37ff051358d71