[INFO] crate crc32c 0.4.0 is already in cache
[INFO] checking crc32c-0.4.0 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate crc32c 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate crc32c 0.4.0 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate crc32c 0.4.0
[INFO] finished tweaking crates.io crate crc32c 0.4.0
[INFO] tweaked toml for crates.io crate crc32c 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 0ca60181d9121dc6aa1d16709001fe3015e2ccdc48fa10bb3311749512b1f79d
[INFO] running `"docker" "start" "-a" "0ca60181d9121dc6aa1d16709001fe3015e2ccdc48fa10bb3311749512b1f79d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling crc32c v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]  --> build.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{mem, ops};
[INFO] [stderr]   |           --- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 8 |     use std::mem;
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> build.rs:10:47
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut table: [[u32; 256]; 8] = unsafe { mem::uninitialized() };
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> build.rs:133:48
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let mut zeroes: [[u32; 256]; 4] = unsafe { mem::uninitialized() };
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> build.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 |         unsafe { mem::uninitialized() }
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.41s
[INFO] running `"docker" "inspect" "0ca60181d9121dc6aa1d16709001fe3015e2ccdc48fa10bb3311749512b1f79d"`
[INFO] running `"docker" "rm" "-f" "0ca60181d9121dc6aa1d16709001fe3015e2ccdc48fa10bb3311749512b1f79d"`
[INFO] [stdout] 0ca60181d9121dc6aa1d16709001fe3015e2ccdc48fa10bb3311749512b1f79d