[INFO] fetching crate kiibohd-hall-effect 0.2.0...
[INFO] checking kiibohd-hall-effect-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate kiibohd-hall-effect 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate kiibohd-hall-effect 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 kiibohd-hall-effect 0.2.0
[INFO] finished tweaking crates.io crate kiibohd-hall-effect 0.2.0
[INFO] tweaked toml for crates.io crate kiibohd-hall-effect 0.2.0 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 75 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 v0.24.2 (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 hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (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] 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 kll-hid v0.1.2
[INFO] [stderr]   Downloaded kll-macros v0.1.2
[INFO] [stderr]   Downloaded kll-core v0.1.8
[INFO] [stderr]   Downloaded flexi_logger v0.24.2
[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] 837fc235c7d933acc81e702347f98b4c34433d25a468c6c0fb86e0319eac72e8
[INFO] running `Command { std: "docker" "start" "-a" "837fc235c7d933acc81e702347f98b4c34433d25a468c6c0fb86e0319eac72e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "837fc235c7d933acc81e702347f98b4c34433d25a468c6c0fb86e0319eac72e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "837fc235c7d933acc81e702347f98b4c34433d25a468c6c0fb86e0319eac72e8", kill_on_drop: false }`
[INFO] [stdout] 837fc235c7d933acc81e702347f98b4c34433d25a468c6c0fb86e0319eac72e8
[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] 6159d32182dbfc4001b47d072e78d1dcbc0eb66edc306bbd729278f252bf4b9d
[INFO] running `Command { std: "docker" "start" "-a" "6159d32182dbfc4001b47d072e78d1dcbc0eb66edc306bbd729278f252bf4b9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]    Compiling syn v2.0.58
[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 kiibohd-hall-effect v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking flexi_logger v0.24.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.75s
[INFO] running `Command { std: "docker" "inspect" "6159d32182dbfc4001b47d072e78d1dcbc0eb66edc306bbd729278f252bf4b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6159d32182dbfc4001b47d072e78d1dcbc0eb66edc306bbd729278f252bf4b9d", kill_on_drop: false }`
[INFO] [stdout] 6159d32182dbfc4001b47d072e78d1dcbc0eb66edc306bbd729278f252bf4b9d
[INFO] checking kiibohd-hall-effect-0.2.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate kiibohd-hall-effect 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate kiibohd-hall-effect 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 kiibohd-hall-effect 0.2.0
[INFO] finished tweaking crates.io crate kiibohd-hall-effect 0.2.0
[INFO] tweaked toml for crates.io crate kiibohd-hall-effect 0.2.0 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] 25b2400c517d64d264480dd39d7159a4c515a445a763df04288177328251e66e
[INFO] running `Command { std: "docker" "start" "-a" "25b2400c517d64d264480dd39d7159a4c515a445a763df04288177328251e66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25b2400c517d64d264480dd39d7159a4c515a445a763df04288177328251e66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b2400c517d64d264480dd39d7159a4c515a445a763df04288177328251e66e", kill_on_drop: false }`
[INFO] [stdout] 25b2400c517d64d264480dd39d7159a4c515a445a763df04288177328251e66e
[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] 721d4aabe2bd70ae359ce15ce3ec461b028babee94e141b95ce3c73a26d58111
[INFO] running `Command { std: "docker" "start" "-a" "721d4aabe2bd70ae359ce15ce3ec461b028babee94e141b95ce3c73a26d58111", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking num-traits v0.2.18
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]     Checking kiibohd-hall-effect v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking flexi_logger v0.24.2
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/flexi_logger-0.24.2/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-0.24.2/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] [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] running `Command { std: "docker" "inspect" "721d4aabe2bd70ae359ce15ce3ec461b028babee94e141b95ce3c73a26d58111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "721d4aabe2bd70ae359ce15ce3ec461b028babee94e141b95ce3c73a26d58111", kill_on_drop: false }`
[INFO] [stdout] 721d4aabe2bd70ae359ce15ce3ec461b028babee94e141b95ce3c73a26d58111