[INFO] fetching crate cxx-llvm-build 0.0.3...
[INFO] checking cxx-llvm-build-0.0.3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate cxx-llvm-build 0.0.3 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate cxx-llvm-build 0.0.3 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 cxx-llvm-build 0.0.3
[INFO] finished tweaking crates.io crate cxx-llvm-build 0.0.3
[INFO] tweaked toml for crates.io crate cxx-llvm-build 0.0.3 written to /workspace/builds/worker-7-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 29 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 scratch v1.0.7
[INFO] [stderr]   Downloaded cxx-llvm-build-common v0.0.3
[INFO] [stderr]   Downloaded normpath v1.2.0
[INFO] [stderr]   Downloaded cxx-build v1.0.120
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8c5f56e6475c9b2fbd9808ff15c69e29ad771f0dee040adc2ed6d520cfdfbb8d
[INFO] running `Command { std: "docker" "start" "-a" "8c5f56e6475c9b2fbd9808ff15c69e29ad771f0dee040adc2ed6d520cfdfbb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c5f56e6475c9b2fbd9808ff15c69e29ad771f0dee040adc2ed6d520cfdfbb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c5f56e6475c9b2fbd9808ff15c69e29ad771f0dee040adc2ed6d520cfdfbb8d", kill_on_drop: false }`
[INFO] [stdout] 8c5f56e6475c9b2fbd9808ff15c69e29ad771f0dee040adc2ed6d520cfdfbb8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 37395069ac33dbbf9b19d8d9fd16eb0f29b95aa15e015756e3d4f9a4806be7bd
[INFO] running `Command { std: "docker" "start" "-a" "37395069ac33dbbf9b19d8d9fd16eb0f29b95aa15e015756e3d4f9a4806be7bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling scratch v1.0.7
[INFO] [stderr]     Checking normpath v1.2.0
[INFO] [stderr]     Checking jobserver v0.1.28
[INFO] [stderr]     Checking cc v1.0.90
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking cxx-llvm-build-common v0.0.3
[INFO] [stderr]     Checking syn v2.0.58
[INFO] [stderr]     Checking cxx-build v1.0.120
[INFO] [stderr]     Checking cxx-llvm-build v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.24s
[INFO] running `Command { std: "docker" "inspect" "37395069ac33dbbf9b19d8d9fd16eb0f29b95aa15e015756e3d4f9a4806be7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37395069ac33dbbf9b19d8d9fd16eb0f29b95aa15e015756e3d4f9a4806be7bd", kill_on_drop: false }`
[INFO] [stdout] 37395069ac33dbbf9b19d8d9fd16eb0f29b95aa15e015756e3d4f9a4806be7bd
[INFO] checking cxx-llvm-build-0.0.3 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate cxx-llvm-build 0.0.3 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate cxx-llvm-build 0.0.3 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx-llvm-build 0.0.3
[INFO] finished tweaking crates.io crate cxx-llvm-build 0.0.3
[INFO] tweaked toml for crates.io crate cxx-llvm-build 0.0.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90e5f51337147f2089bb4fb4bdaa23fedb420318afa67fc38c2e59d5e8ecca05
[INFO] running `Command { std: "docker" "start" "-a" "90e5f51337147f2089bb4fb4bdaa23fedb420318afa67fc38c2e59d5e8ecca05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90e5f51337147f2089bb4fb4bdaa23fedb420318afa67fc38c2e59d5e8ecca05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90e5f51337147f2089bb4fb4bdaa23fedb420318afa67fc38c2e59d5e8ecca05", kill_on_drop: false }`
[INFO] [stdout] 90e5f51337147f2089bb4fb4bdaa23fedb420318afa67fc38c2e59d5e8ecca05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74d9bca15b3604f82d95132a443845831d72830cca0e34d103f57d2e42a40cbc
[INFO] running `Command { std: "docker" "start" "-a" "74d9bca15b3604f82d95132a443845831d72830cca0e34d103f57d2e42a40cbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling scratch v1.0.7
[INFO] [stderr]     Checking normpath v1.2.0
[INFO] [stderr]     Checking jobserver v0.1.28
[INFO] [stderr]     Checking cc v1.0.90
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking cxx-llvm-build-common v0.0.3
[INFO] [stderr]     Checking syn v2.0.58
[INFO] [stderr]     Checking cxx-build v1.0.120
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/cxx-build-1.0.120/src/target.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | /         if target_dir.is_absolute() {
[INFO] [stdout] 14 | |             return TargetDir::Path(target_dir);
[INFO] [stdout] 15 | |         } else {
[INFO] [stdout] 16 | |             return TargetDir::Unknown;
[INFO] [stdout] 17 | |         };
[INFO] [stdout]    | |_________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cxx-build` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "74d9bca15b3604f82d95132a443845831d72830cca0e34d103f57d2e42a40cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d9bca15b3604f82d95132a443845831d72830cca0e34d103f57d2e42a40cbc", kill_on_drop: false }`
[INFO] [stdout] 74d9bca15b3604f82d95132a443845831d72830cca0e34d103f57d2e42a40cbc