[INFO] fetching crate b3sum 0.3.2...
[INFO] checking b3sum-0.3.2 against master#6d69caba110c0c2fb90180df1cbc8be5033b91d4 for pr-69530
[INFO] extracting crate b3sum 0.3.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate b3sum 0.3.2 on toolchain 6d69caba110c0c2fb90180df1cbc8be5033b91d4
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate b3sum 0.3.2
[INFO] finished tweaking crates.io crate b3sum 0.3.2
[INFO] tweaked toml for crates.io crate b3sum 0.3.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate b3sum 0.3.2 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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 53ada6e575f594779d7336ad2995bb12b52f0bac0636ccd87b4d07c7fabc2ad2
[INFO] running `"docker" "start" "-a" "53ada6e575f594779d7336ad2995bb12b52f0bac0636ccd87b4d07c7fabc2ad2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling escargot v0.5.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_child v0.3.4
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking os_pipe v0.9.1
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking duct v0.13.4
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling blake3 v0.3.2
[INFO] [stderr]     Checking assert_cmd v0.12.2
[INFO] [stderr] error[E0658]: use of unstable library feature 'stdsimd'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/blake3-0.3.2/src/platform.rs:303:12
[INFO] [stderr]     |
[INFO] [stderr] 303 |         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] running `"docker" "inspect" "53ada6e575f594779d7336ad2995bb12b52f0bac0636ccd87b4d07c7fabc2ad2"`
[INFO] running `"docker" "rm" "-f" "53ada6e575f594779d7336ad2995bb12b52f0bac0636ccd87b4d07c7fabc2ad2"`
[INFO] [stdout] 53ada6e575f594779d7336ad2995bb12b52f0bac0636ccd87b4d07c7fabc2ad2