[INFO] fetching crate kll-core 0.1.8...
[INFO] checking kll-core-0.1.8 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate kll-core 0.1.8 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate kll-core 0.1.8 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 kll-core 0.1.8
[INFO] finished tweaking crates.io crate kll-core 0.1.8
[INFO] tweaked toml for crates.io crate kll-core 0.1.8 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]      Locking 80 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding enum-primitive-derive v0.2.2 (latest: v0.3.0)
[INFO] [stderr]       Adding flexi_logger v0.25.6 (latest: v0.28.0)
[INFO] [stderr]       Adding hash32 v0.2.1 (latest: v0.3.1)
[INFO] [stderr]       Adding heapless v0.7.17 (latest: v0.8.0)
[INFO] [stderr]       Adding nu-ansi-term v0.49.0 (latest: v0.50.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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 nu-ansi-term v0.49.0
[INFO] [stderr]   Downloaded kll-macros v0.1.2
[INFO] [stderr]   Downloaded kll-hid v0.1.2
[INFO] [stderr]   Downloaded flexi_logger v0.25.6
[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] 6f9643cb38d769228202ac8e732ee3eecb6c4caa694bcb933eb2668350a5260d
[INFO] running `Command { std: "docker" "start" "-a" "6f9643cb38d769228202ac8e732ee3eecb6c4caa694bcb933eb2668350a5260d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f9643cb38d769228202ac8e732ee3eecb6c4caa694bcb933eb2668350a5260d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f9643cb38d769228202ac8e732ee3eecb6c4caa694bcb933eb2668350a5260d", kill_on_drop: false }`
[INFO] [stdout] 6f9643cb38d769228202ac8e732ee3eecb6c4caa694bcb933eb2668350a5260d
[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] d44f3389b7f615211baec28621a819ca85c93672c2ccf0fa517f1b0383f0e8d6
[INFO] running `Command { std: "docker" "start" "-a" "d44f3389b7f615211baec28621a819ca85c93672c2ccf0fa517f1b0383f0e8d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling kll-macros v0.1.2
[INFO] [stderr]     Checking kll-hid v0.1.2
[INFO] [stderr]     Checking nu-ansi-term v0.49.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling enum-primitive-derive v0.2.2
[INFO] [stderr]     Checking flexi_logger v0.25.6
[INFO] [stderr]     Checking kll-core v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.04s
[INFO] running `Command { std: "docker" "inspect" "d44f3389b7f615211baec28621a819ca85c93672c2ccf0fa517f1b0383f0e8d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d44f3389b7f615211baec28621a819ca85c93672c2ccf0fa517f1b0383f0e8d6", kill_on_drop: false }`
[INFO] [stdout] d44f3389b7f615211baec28621a819ca85c93672c2ccf0fa517f1b0383f0e8d6
[INFO] checking kll-core-0.1.8 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate kll-core 0.1.8 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate kll-core 0.1.8 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 kll-core 0.1.8
[INFO] finished tweaking crates.io crate kll-core 0.1.8
[INFO] tweaked toml for crates.io crate kll-core 0.1.8 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] 5bd8e7b3e887869a32f76025f4ff6ff90891fc11aa742d4b09886285e843da3c
[INFO] running `Command { std: "docker" "start" "-a" "5bd8e7b3e887869a32f76025f4ff6ff90891fc11aa742d4b09886285e843da3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bd8e7b3e887869a32f76025f4ff6ff90891fc11aa742d4b09886285e843da3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bd8e7b3e887869a32f76025f4ff6ff90891fc11aa742d4b09886285e843da3c", kill_on_drop: false }`
[INFO] [stdout] 5bd8e7b3e887869a32f76025f4ff6ff90891fc11aa742d4b09886285e843da3c
[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] 8db3194e7790105154f36bfba32b66dd23cf489b85afc8ecfb9f8d03505992b4
[INFO] running `Command { std: "docker" "start" "-a" "8db3194e7790105154f36bfba32b66dd23cf489b85afc8ecfb9f8d03505992b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling kll-macros v0.1.2
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking kll-hid v0.1.2
[INFO] [stderr]     Checking nu-ansi-term v0.49.0
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling enum-primitive-derive v0.2.2
[INFO] [stderr]     Checking flexi_logger v0.25.6
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/flexi_logger-0.25.6/src/threads.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 |     builder.spawn(move || {
[INFO] [stdout]    |             ----- ^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `Builder::spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:381:5
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 43 |     builder.spawn(move || -> /* Type */ {
[INFO] [stdout]    |                           +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/flexi_logger-0.25.6/src/writers/file_log_writer/threads.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |     builder.spawn(move || {
[INFO] [stdout]    |             ----- ^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `Builder::spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:381:5
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 54 |     builder.spawn(move || -> /* Type */ {
[INFO] [stdout]    |                           +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking kll-core v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flexi_logger` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8db3194e7790105154f36bfba32b66dd23cf489b85afc8ecfb9f8d03505992b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8db3194e7790105154f36bfba32b66dd23cf489b85afc8ecfb9f8d03505992b4", kill_on_drop: false }`
[INFO] [stdout] 8db3194e7790105154f36bfba32b66dd23cf489b85afc8ecfb9f8d03505992b4