[INFO] fetching crate zstd-safe 1.4.9+zstd.1.4.0...
[INFO] extracting crate zstd-safe 1.4.9+zstd.1.4.0 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/zstd-safe/1.4.9+zstd.1.4.0
[INFO] extracting crate zstd-safe 1.4.9+zstd.1.4.0 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/zstd-safe/1.4.9+zstd.1.4.0
[INFO] validating manifest of zstd-safe-1.4.9+zstd.1.4.0 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zstd-safe-1.4.9+zstd.1.4.0 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zstd-safe-1.4.9+zstd.1.4.0
[INFO] finished frobbing zstd-safe-1.4.9+zstd.1.4.0
[INFO] frobbed toml for zstd-safe-1.4.9+zstd.1.4.0 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/zstd-safe/1.4.9+zstd.1.4.0/Cargo.toml
[INFO] started frobbing zstd-safe-1.4.9+zstd.1.4.0
[INFO] finished frobbing zstd-safe-1.4.9+zstd.1.4.0
[INFO] frobbed toml for zstd-safe-1.4.9+zstd.1.4.0 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/zstd-safe/1.4.9+zstd.1.4.0/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking zstd-safe-1.4.9+zstd.1.4.0 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/zstd-safe/1.4.9+zstd.1.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 839822f06b4978cf1625c32dad008e8ec6cacaf98322fd9c3a3cc20aa21bcebe
[INFO] running `"docker" "start" "-a" "839822f06b4978cf1625c32dad008e8ec6cacaf98322fd9c3a3cc20aa21bcebe"`
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling zstd-sys v1.4.10+zstd.1.4.0
[INFO] [stderr]     Checking zstd-safe v1.4.9+zstd.1.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `c_int`, `c_ulonglong`
[INFO] [stderr]   --> src/lib.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 | use libc::{c_int, c_ulonglong, c_void};
[INFO] [stderr]    |            ^^^^^  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `c_int`, `c_ulonglong`
[INFO] [stderr]   --> src/lib.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 | use libc::{c_int, c_ulonglong, c_void};
[INFO] [stderr]    |            ^^^^^  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.04s
[INFO] running `"docker" "inspect" "839822f06b4978cf1625c32dad008e8ec6cacaf98322fd9c3a3cc20aa21bcebe"`
[INFO] running `"docker" "rm" "-f" "839822f06b4978cf1625c32dad008e8ec6cacaf98322fd9c3a3cc20aa21bcebe"`
[INFO] [stdout] 839822f06b4978cf1625c32dad008e8ec6cacaf98322fd9c3a3cc20aa21bcebe