[INFO] fetching crate hub1989-mongo-data 0.0.5...
[INFO] checking hub1989-mongo-data-0.0.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate hub1989-mongo-data 0.0.5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate hub1989-mongo-data 0.0.5 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 hub1989-mongo-data 0.0.5
[INFO] finished tweaking crates.io crate hub1989-mongo-data 0.0.5
[INFO] tweaked toml for crates.io crate hub1989-mongo-data 0.0.5 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 347 packages
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[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 castaway v0.1.2
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[INFO] [stderr]   Downloaded hub1989-error-util v0.0.4
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[INFO] [stderr]   Downloaded mongodb v2.8.2
[INFO] [stderr]   Downloaded ascii_utils v0.9.3
[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] 1d08b97c3a54c83eb883f79f5a85ce70fa75b7db273efc803a6763a92fa03f9a
[INFO] running `Command { std: "docker" "start" "-a" "1d08b97c3a54c83eb883f79f5a85ce70fa75b7db273efc803a6763a92fa03f9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d08b97c3a54c83eb883f79f5a85ce70fa75b7db273efc803a6763a92fa03f9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d08b97c3a54c83eb883f79f5a85ce70fa75b7db273efc803a6763a92fa03f9a", kill_on_drop: false }`
[INFO] [stdout] 1d08b97c3a54c83eb883f79f5a85ce70fa75b7db273efc803a6763a92fa03f9a
[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] b1dd11db0d7d005e7e7d8edfd491b74995dec96014ca9390ecfeb0c5de0e9935
[INFO] running `Command { std: "docker" "start" "-a" "b1dd11db0d7d005e7e7d8edfd491b74995dec96014ca9390ecfeb0c5de0e9935", kill_on_drop: false }`
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[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.27s
[INFO] running `Command { std: "docker" "inspect" "b1dd11db0d7d005e7e7d8edfd491b74995dec96014ca9390ecfeb0c5de0e9935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1dd11db0d7d005e7e7d8edfd491b74995dec96014ca9390ecfeb0c5de0e9935", kill_on_drop: false }`
[INFO] [stdout] b1dd11db0d7d005e7e7d8edfd491b74995dec96014ca9390ecfeb0c5de0e9935
[INFO] checking hub1989-mongo-data-0.0.5 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate hub1989-mongo-data 0.0.5 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate hub1989-mongo-data 0.0.5 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 hub1989-mongo-data 0.0.5
[INFO] finished tweaking crates.io crate hub1989-mongo-data 0.0.5
[INFO] tweaked toml for crates.io crate hub1989-mongo-data 0.0.5 written to /workspace/builds/worker-4-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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 84c4b3ab58deed08132e085f377354ddd015005fad98b4a80baa4069f66f99ca
[INFO] running `Command { std: "docker" "start" "-a" "84c4b3ab58deed08132e085f377354ddd015005fad98b4a80baa4069f66f99ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84c4b3ab58deed08132e085f377354ddd015005fad98b4a80baa4069f66f99ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c4b3ab58deed08132e085f377354ddd015005fad98b4a80baa4069f66f99ca", kill_on_drop: false }`
[INFO] [stdout] 84c4b3ab58deed08132e085f377354ddd015005fad98b4a80baa4069f66f99ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 37bc58c1906dacbf8045cd23b9abc57b82c161ae80bec8189d7ebb04ad868027
[INFO] running `Command { std: "docker" "start" "-a" "37bc58c1906dacbf8045cd23b9abc57b82c161ae80bec8189d7ebb04ad868027", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.4.1/src/half_lock.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             unsafe { libc::abort() };
[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]     Checking percent-encoding v2.3.1
[INFO] [stderr] error: could not compile `signal-hook-registry` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "37bc58c1906dacbf8045cd23b9abc57b82c161ae80bec8189d7ebb04ad868027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37bc58c1906dacbf8045cd23b9abc57b82c161ae80bec8189d7ebb04ad868027", kill_on_drop: false }`
[INFO] [stdout] 37bc58c1906dacbf8045cd23b9abc57b82c161ae80bec8189d7ebb04ad868027