[INFO] updating cached repository https://github.com/birkenfeld/fddf
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7229172ddf0644c6d9a5d08a657658809dbccb25
[INFO] checking birkenfeld/fddf against master#6d69caba110c0c2fb90180df1cbc8be5033b91d4 for pr-69530
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirkenfeld%2Ffddf" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/birkenfeld/fddf on toolchain 6d69caba110c0c2fb90180df1cbc8be5033b91d4
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/birkenfeld/fddf
[INFO] finished tweaking git repo https://github.com/birkenfeld/fddf
[INFO] tweaked toml for git repo https://github.com/birkenfeld/fddf written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/birkenfeld/fddf already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 90f9e3fe4280c7506490b80d1ec938c464d305722214fd7cf69d50cc7d208375
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "90f9e3fe4280c7506490b80d1ec938c464d305722214fd7cf69d50cc7d208375"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking scopeguard v0.1.2
[INFO] [stderr]     Checking variance v0.1.3
[INFO] [stderr]    Compiling blake3 v0.3.1
[INFO] [stderr]     Checking unbytify v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]     Checking scoped-pool v1.0.0
[INFO] [stderr] error[E0658]: use of unstable library feature 'stdsimd'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/blake3-0.3.1/src/platform.rs:304:12
[INFO] [stderr]     |
[INFO] [stderr] 304 |         if is_x86_feature_detected!("avx512f") && is_x86_feature_detected!("avx512vl") {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #27731 <https://github.com/rust-lang/rust/issues/27731> for more information
[INFO] [stderr]     = help: add `#![feature(stdsimd)]` to the crate attributes to enable
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: could not compile `blake3`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "90f9e3fe4280c7506490b80d1ec938c464d305722214fd7cf69d50cc7d208375"`
[INFO] running `"docker" "rm" "-f" "90f9e3fe4280c7506490b80d1ec938c464d305722214fd7cf69d50cc7d208375"`
[INFO] [stdout] 90f9e3fe4280c7506490b80d1ec938c464d305722214fd7cf69d50cc7d208375