[INFO] fetching crate javawithrust 0.2.0...
[INFO] checking javawithrust-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate javawithrust 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate javawithrust 0.2.0 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 javawithrust 0.2.0
[INFO] finished tweaking crates.io crate javawithrust 0.2.0
[INFO] tweaked toml for crates.io crate javawithrust 0.2.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 45 packages
[INFO] [stderr]       Adding block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding dirs v3.0.2 (latest: v5.0.1)
[INFO] [stderr]       Adding dirs-sys v0.3.7 (latest: v0.4.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding j4rs v0.13.0 (latest: v0.17.2)
[INFO] [stderr]       Adding jni-sys v0.3.0 (latest: v0.4.0)
[INFO] [stderr]       Adding libloading v0.6.7 (latest: v0.8.3)
[INFO] [stderr]       Adding sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 j4rs_derive v0.1.0
[INFO] [stderr]   Downloaded javawithrust_macro v0.2.0
[INFO] [stderr]   Downloaded java-locator v0.1.5
[INFO] [stderr]   Downloaded j4rs v0.13.0
[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] a5410227248d2e27199f34910ffd0f22bb8a5ccdcc38215d101ec6a5f37089ea
[INFO] running `Command { std: "docker" "start" "-a" "a5410227248d2e27199f34910ffd0f22bb8a5ccdcc38215d101ec6a5f37089ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5410227248d2e27199f34910ffd0f22bb8a5ccdcc38215d101ec6a5f37089ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5410227248d2e27199f34910ffd0f22bb8a5ccdcc38215d101ec6a5f37089ea", kill_on_drop: false }`
[INFO] [stdout] a5410227248d2e27199f34910ffd0f22bb8a5ccdcc38215d101ec6a5f37089ea
[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] 46079097092ae397c89cd787a17d9d99ee0e560da6aaeb87f9dc55f73781eca6
[INFO] running `Command { std: "docker" "start" "-a" "46079097092ae397c89cd787a17d9d99ee0e560da6aaeb87f9dc55f73781eca6", kill_on_drop: false }`
[INFO] [stderr]    Compiling opaque-debug v0.3.1
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling java-locator v0.1.5
[INFO] [stderr]     Checking jni-sys v0.3.0
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]    Compiling j4rs_derive v0.1.0
[INFO] [stderr]    Compiling javawithrust_macro v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling j4rs v0.13.0
[INFO] [stderr]     Checking javawithrust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "46079097092ae397c89cd787a17d9d99ee0e560da6aaeb87f9dc55f73781eca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46079097092ae397c89cd787a17d9d99ee0e560da6aaeb87f9dc55f73781eca6", kill_on_drop: false }`
[INFO] [stdout] 46079097092ae397c89cd787a17d9d99ee0e560da6aaeb87f9dc55f73781eca6
[INFO] checking javawithrust-0.2.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate javawithrust 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate javawithrust 0.2.0 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 javawithrust 0.2.0
[INFO] finished tweaking crates.io crate javawithrust 0.2.0
[INFO] tweaked toml for crates.io crate javawithrust 0.2.0 written to /workspace/builds/worker-6-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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c331ce1e630d3c663708e01f6e10a55894f26acca77dee4f9cc380c6dd60f471
[INFO] running `Command { std: "docker" "start" "-a" "c331ce1e630d3c663708e01f6e10a55894f26acca77dee4f9cc380c6dd60f471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c331ce1e630d3c663708e01f6e10a55894f26acca77dee4f9cc380c6dd60f471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c331ce1e630d3c663708e01f6e10a55894f26acca77dee4f9cc380c6dd60f471", kill_on_drop: false }`
[INFO] [stdout] c331ce1e630d3c663708e01f6e10a55894f26acca77dee4f9cc380c6dd60f471
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1018a1ba77b0a9bfacac551113b823c6f91eb73621655c77f7425b4fb1e9aab0
[INFO] running `Command { std: "docker" "start" "-a" "1018a1ba77b0a9bfacac551113b823c6f91eb73621655c77f7425b4fb1e9aab0", kill_on_drop: false }`
[INFO] [stderr]    Compiling opaque-debug v0.3.1
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling java-locator v0.1.5
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking jni-sys v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling j4rs v0.13.0
[INFO] [stdout] error[E0282]: type annotations needed for `Result<(), _>`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/j4rs-0.13.0/build.rs:94:17
[INFO] [stdout]    |
[INFO] [stdout] 94 |               let _ = fs::create_dir_all(jassets_path_buf.clone())
[INFO] [stdout]    |  _________________^___-
[INFO] [stdout] 95 | |                 .map_err(|error| panic!("Cannot create dir '{:?}': {:?}", jassets_path_buf, error));
[INFO] [stdout]    | |___________________________________________________________________________________________________- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving this pattern a type, where the type for type parameter `F` is specified
[INFO] [stdout]    |
[INFO] [stdout] 94 |             let _: Result<(), _> = fs::create_dir_all(jassets_path_buf.clone())
[INFO] [stdout]    |                  +++++++++++++++
[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 `j4rs` (build script) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1018a1ba77b0a9bfacac551113b823c6f91eb73621655c77f7425b4fb1e9aab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1018a1ba77b0a9bfacac551113b823c6f91eb73621655c77f7425b4fb1e9aab0", kill_on_drop: false }`
[INFO] [stdout] 1018a1ba77b0a9bfacac551113b823c6f91eb73621655c77f7425b4fb1e9aab0