[INFO] fetching crate guff-matrix 0.1.12...
[INFO] checking guff-matrix-0.1.12 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate guff-matrix 0.1.12 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate guff-matrix 0.1.12
[INFO] finished tweaking crates.io crate guff-matrix 0.1.12
[INFO] tweaked toml for crates.io crate guff-matrix 0.1.12 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate guff-matrix 0.1.12 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 78 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31ff57193a0b5fa999f633c515f19f817d2c506ad8bfe1956a757d89b7f334f5
[INFO] running `Command { std: "docker" "start" "-a" "31ff57193a0b5fa999f633c515f19f817d2c506ad8bfe1956a757d89b7f334f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31ff57193a0b5fa999f633c515f19f817d2c506ad8bfe1956a757d89b7f334f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31ff57193a0b5fa999f633c515f19f817d2c506ad8bfe1956a757d89b7f334f5", kill_on_drop: false }`
[INFO] [stdout] 31ff57193a0b5fa999f633c515f19f817d2c506ad8bfe1956a757d89b7f334f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad90cb678654e6b9d33b3e08c29517f4a1ce438eba151431343fb0fbf3ca10bc
[INFO] running `Command { std: "docker" "start" "-a" "ad90cb678654e6b9d33b3e08c29517f4a1ce438eba151431343fb0fbf3ca10bc", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking guff v0.1.7
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking guff-matrix v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stdout] warning: unused import: `crate::x86::*`
[INFO] [stdout]   --> src/lib.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     use crate::x86::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `stdsimd`
[INFO] [stdout]   --> src/lib.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | #![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 `guff-matrix` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ad90cb678654e6b9d33b3e08c29517f4a1ce438eba151431343fb0fbf3ca10bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad90cb678654e6b9d33b3e08c29517f4a1ce438eba151431343fb0fbf3ca10bc", kill_on_drop: false }`
[INFO] [stdout] ad90cb678654e6b9d33b3e08c29517f4a1ce438eba151431343fb0fbf3ca10bc