[INFO] fetching crate kkcloud 0.0.4...
[INFO] checking kkcloud-0.0.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate kkcloud 0.0.4 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate kkcloud 0.0.4 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 kkcloud 0.0.4
[INFO] finished tweaking crates.io crate kkcloud 0.0.4
[INFO] tweaked toml for crates.io crate kkcloud 0.0.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate kkcloud 0.0.4 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 }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded standback v0.2.14
[INFO] [stderr]   Downloaded ruc v0.4.1
[INFO] [stderr]   Downloaded kkcloud-server v0.1.0
[INFO] [stderr]   Downloaded kkcloud-client v0.1.0
[INFO] [stderr]   Downloaded kkcloud-engine v0.1.0
[INFO] [stderr]   Downloaded time v0.2.25
[INFO] [stderr]   Downloaded kkcloud-framework v0.0.4
[INFO] [stderr]   Downloaded bumpalo v3.6.0
[INFO] [stderr]   Downloaded libc v0.2.85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3ddcc9ab9df0e54bd7f403c1b93be421a5b9a75d2230689f3ed6c84c61227129
[INFO] running `Command { std: "docker" "start" "-a" "3ddcc9ab9df0e54bd7f403c1b93be421a5b9a75d2230689f3ed6c84c61227129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ddcc9ab9df0e54bd7f403c1b93be421a5b9a75d2230689f3ed6c84c61227129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ddcc9ab9df0e54bd7f403c1b93be421a5b9a75d2230689f3ed6c84c61227129", kill_on_drop: false }`
[INFO] [stdout] 3ddcc9ab9df0e54bd7f403c1b93be421a5b9a75d2230689f3ed6c84c61227129
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2c5c8bee83eced65eb174656297270f770e486c65facddaee7c00734eac17edd
[INFO] running `Command { std: "docker" "start" "-a" "2c5c8bee83eced65eb174656297270f770e486c65facddaee7c00734eac17edd", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling standback v0.2.14
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking ruc v0.4.1
[INFO] [stderr]     Checking kkcloud-engine v0.1.0
[INFO] [stderr]     Checking kkcloud-client v0.1.0
[INFO] [stderr]     Checking kkcloud-framework v0.0.4
[INFO] [stderr]     Checking kkcloud-server v0.1.0
[INFO] [stderr]     Checking kkcloud v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.71s
[INFO] running `Command { std: "docker" "inspect" "2c5c8bee83eced65eb174656297270f770e486c65facddaee7c00734eac17edd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c5c8bee83eced65eb174656297270f770e486c65facddaee7c00734eac17edd", kill_on_drop: false }`
[INFO] [stdout] 2c5c8bee83eced65eb174656297270f770e486c65facddaee7c00734eac17edd
[INFO] checking kkcloud-0.0.4 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate kkcloud 0.0.4 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate kkcloud 0.0.4 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 kkcloud 0.0.4
[INFO] finished tweaking crates.io crate kkcloud 0.0.4
[INFO] tweaked toml for crates.io crate kkcloud 0.0.4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate kkcloud 0.0.4 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2df5862be025c54d9c2ab721786814239547c9fc85e65a3e35470116d1f9c36b
[INFO] running `Command { std: "docker" "start" "-a" "2df5862be025c54d9c2ab721786814239547c9fc85e65a3e35470116d1f9c36b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2df5862be025c54d9c2ab721786814239547c9fc85e65a3e35470116d1f9c36b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df5862be025c54d9c2ab721786814239547c9fc85e65a3e35470116d1f9c36b", kill_on_drop: false }`
[INFO] [stdout] 2df5862be025c54d9c2ab721786814239547c9fc85e65a3e35470116d1f9c36b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 30500bb14e139e57538c202756e2cc3df0ea39d01de004f2730813447a45b5b6
[INFO] running `Command { std: "docker" "start" "-a" "30500bb14e139e57538c202756e2cc3df0ea39d01de004f2730813447a45b5b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling standback v0.2.14
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking ruc v0.4.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ruc-0.4.1/src/lib.rs:253:5
[INFO] [stdout]     |
[INFO] [stdout] 253 |     crate::die!();
[INFO] [stdout]     |     ^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `crate::die` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `ruc` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "30500bb14e139e57538c202756e2cc3df0ea39d01de004f2730813447a45b5b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30500bb14e139e57538c202756e2cc3df0ea39d01de004f2730813447a45b5b6", kill_on_drop: false }`
[INFO] [stdout] 30500bb14e139e57538c202756e2cc3df0ea39d01de004f2730813447a45b5b6