[INFO] crate tarmac 0.3.1 is already in cache
[INFO] checking tarmac-0.3.1 against master#b1f395de642e8be7bcbbd2bd8aaadab715851f49 for pr-69410
[INFO] extracting crate tarmac 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tarmac 0.3.1 on toolchain b1f395de642e8be7bcbbd2bd8aaadab715851f49
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b1f395de642e8be7bcbbd2bd8aaadab715851f49" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tarmac 0.3.1
[INFO] finished tweaking crates.io crate tarmac 0.3.1
[INFO] tweaked toml for crates.io crate tarmac 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate tarmac 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b1f395de642e8be7bcbbd2bd8aaadab715851f49" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b1f395de642e8be7bcbbd2bd8aaadab715851f49" "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] 7120f5fdb0ac1901dc14f416ace74ec5c79e39b60cddeea59615c19ed35ddcc9
[INFO] running `"docker" "start" "-a" "7120f5fdb0ac1901dc14f416ace74ec5c79e39b60cddeea59615c19ed35ddcc9"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking openssl-sys v0.9.53
[INFO] [stderr]     Checking packos v0.1.0
[INFO] [stderr]     Checking blake3 v0.1.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling snafu-derive v0.6.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr] error[E0658]: use of unstable library feature 'stdsimd'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/blake3-0.1.3/src/platform.rs:266:12
[INFO] [stderr]     |
[INFO] [stderr] 266 |         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]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[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" "7120f5fdb0ac1901dc14f416ace74ec5c79e39b60cddeea59615c19ed35ddcc9"`
[INFO] running `"docker" "rm" "-f" "7120f5fdb0ac1901dc14f416ace74ec5c79e39b60cddeea59615c19ed35ddcc9"`
[INFO] [stdout] 7120f5fdb0ac1901dc14f416ace74ec5c79e39b60cddeea59615c19ed35ddcc9