[INFO] fetching crate viewrs 0.1.2...
[INFO] testing viewrs-0.1.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate viewrs 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate viewrs 0.1.2
[INFO] finished tweaking crates.io crate viewrs 0.1.2
[INFO] tweaked toml for crates.io crate viewrs 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate viewrs 0.1.2 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate viewrs 0.1.2 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3520d2d34e52e94326dd75d520ef78295fb01705938b86f139d7b09844fd2616
[INFO] running `Command { std: "docker" "start" "-a" "3520d2d34e52e94326dd75d520ef78295fb01705938b86f139d7b09844fd2616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3520d2d34e52e94326dd75d520ef78295fb01705938b86f139d7b09844fd2616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3520d2d34e52e94326dd75d520ef78295fb01705938b86f139d7b09844fd2616", kill_on_drop: false }`
[INFO] [stdout] 3520d2d34e52e94326dd75d520ef78295fb01705938b86f139d7b09844fd2616
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea74c2a0deb4e93dd6f67275effb4fc1b1fd2800a35917f4c097af8d4f7edbbc
[INFO] running `Command { std: "docker" "start" "-a" "ea74c2a0deb4e93dd6f67275effb4fc1b1fd2800a35917f4c097af8d4f7edbbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling lexical-util v0.8.5
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling target-features v0.1.4
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling lexical-parse-integer v0.8.6
[INFO] [stderr]    Compiling lexical-write-integer v0.8.5
[INFO] [stderr]    Compiling zstd-safe v6.0.5+zstd.1.5.4
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling zstd-sys v2.0.8+zstd.1.5.5
[INFO] [stderr]    Compiling lz4-sys v1.9.4
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling lexical-write-float v0.8.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling lexical-parse-float v0.8.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stdout] error[E0635]: unknown feature `stdsimd`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ahash-0.8.3/src/lib.rs:99:42
[INFO] [stdout]    |
[INFO] [stdout] 99 | #![cfg_attr(feature = "stdsimd", feature(stdsimd))]
[INFO] [stdout]    |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ahash` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ea74c2a0deb4e93dd6f67275effb4fc1b1fd2800a35917f4c097af8d4f7edbbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea74c2a0deb4e93dd6f67275effb4fc1b1fd2800a35917f4c097af8d4f7edbbc", kill_on_drop: false }`
[INFO] [stdout] ea74c2a0deb4e93dd6f67275effb4fc1b1fd2800a35917f4c097af8d4f7edbbc