[INFO] fetching crate simd-json 0.4.7...
[INFO] testing simd-json-0.4.7 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate simd-json 0.4.7 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate simd-json 0.4.7 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-15/source/.cargo/config
[INFO] started tweaking crates.io crate simd-json 0.4.7
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate simd-json 0.4.7
[INFO] tweaked toml for crates.io crate simd-json 0.4.7 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate simd-json 0.4.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_cbor v0.11.1
[INFO] [stderr]   Downloaded walkdir v2.3.1
[INFO] [stderr]   Downloaded tinytemplate v1.1.0
[INFO] [stderr]   Downloaded beef v0.5.0
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[INFO] [stderr]   Downloaded bstr v0.2.13
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[INFO] [stderr]   Downloaded bumpalo v3.4.0
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[INFO] [stderr]   Downloaded plotters v0.2.15
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[INFO] [stderr]   Downloaded rayon v1.3.1
[INFO] [stderr]   Downloaded phf_shared v0.8.0
[INFO] [stderr]   Downloaded alloc_counter_macro v0.0.2
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.65
[INFO] [stderr]   Downloaded js-sys v0.3.42
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[INFO] [stderr]   Downloaded rayon-core v1.7.1
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[INFO] [stderr]   Downloaded half v1.6.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6046ca47ad75e64cd9ce6425534d7ebe0de19a4824440fc5b326891a35d978bd
[INFO] running `Command { std: "docker" "start" "-a" "6046ca47ad75e64cd9ce6425534d7ebe0de19a4824440fc5b326891a35d978bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6046ca47ad75e64cd9ce6425534d7ebe0de19a4824440fc5b326891a35d978bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6046ca47ad75e64cd9ce6425534d7ebe0de19a4824440fc5b326891a35d978bd", kill_on_drop: false }`
[INFO] [stdout] 6046ca47ad75e64cd9ce6425534d7ebe0de19a4824440fc5b326891a35d978bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d1d56907b25e76f3b233903f81ec946be15737c6179830dd6160c31e38ab730
[INFO] running `Command { std: "docker" "start" "-a" "0d1d56907b25e76f3b233903f81ec946be15737c6179830dd6160c31e38ab730", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling simdutf8 v0.1.3
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling halfbrown v0.1.11
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling value-trait v0.2.4
[INFO] [stderr]    Compiling simd-json v0.4.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:215:86
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn please_compile_with_a_simd_compatible_cpu_setting_read_the_simdjonsrs_readme() -> ! {}
[INFO] [stdout]     |    ----------------------------------------------------------------------------      ^ expected `!`, found `()`
[INFO] [stdout]     |    |
[INFO] [stdout]     |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected type `!`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simd-json` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0d1d56907b25e76f3b233903f81ec946be15737c6179830dd6160c31e38ab730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d1d56907b25e76f3b233903f81ec946be15737c6179830dd6160c31e38ab730", kill_on_drop: false }`
[INFO] [stdout] 0d1d56907b25e76f3b233903f81ec946be15737c6179830dd6160c31e38ab730