[INFO] updating cached repository https://github.com/vthriller/zombieland
[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] 63cceffb7ff9cae147592a37a151adeae6329e28
[INFO] checking vthriller/zombieland against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvthriller%2Fzombieland" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vthriller/zombieland on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vthriller/zombieland
[INFO] finished tweaking git repo https://github.com/vthriller/zombieland
[INFO] tweaked toml for git repo https://github.com/vthriller/zombieland written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/vthriller/zombieland already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 9d9991d1c1d4bbbf4bb33ddb4e3ea99dbb47ea93ce3563b81b580ba04ce55c88
[INFO] running `"docker" "start" "-a" "9d9991d1c1d4bbbf4bb33ddb4e3ea99dbb47ea93ce3563b81b580ba04ce55c88"`
[INFO] [stderr]     Checking libc v0.2.19 (https://github.com/rust-lang/libc#4fe2cc22)
[INFO] [stderr]     Checking syscall v0.2.1
[INFO] [stderr]     Checking nix v0.8.0 (https://github.com/nix-rust/nix#9b81000b)
[INFO] [stderr]     Checking zombieland v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]  --> src/waitid.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem::{uninitialized, transmute};
[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]   --> src/waitid.rs:52:35
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut info: libc::siginfo_t = uninitialized();
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::os::unix::process::CommandExt::before_exec': should be unsafe, use `pre_exec` instead
[INFO] [stderr]    --> src/main.rs:167:15
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let _ = cmd.before_exec(|| { let _ = unistd::setsid(); Ok(()) });
[INFO] [stderr]     |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]  --> src/waitid.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem::{uninitialized, transmute};
[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]   --> src/waitid.rs:52:35
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut info: libc::siginfo_t = uninitialized();
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(use_extern_macros)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `process_exec` has been stable since 1.15.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(process_exec)]
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::os::unix::process::CommandExt::before_exec': should be unsafe, use `pre_exec` instead
[INFO] [stderr]    --> src/main.rs:167:15
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let _ = cmd.before_exec(|| { let _ = unistd::setsid(); Ok(()) });
[INFO] [stderr]     |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(use_extern_macros)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `process_exec` has been stable since 1.15.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(process_exec)]
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `"docker" "inspect" "9d9991d1c1d4bbbf4bb33ddb4e3ea99dbb47ea93ce3563b81b580ba04ce55c88"`
[INFO] running `"docker" "rm" "-f" "9d9991d1c1d4bbbf4bb33ddb4e3ea99dbb47ea93ce3563b81b580ba04ce55c88"`
[INFO] [stdout] 9d9991d1c1d4bbbf4bb33ddb4e3ea99dbb47ea93ce3563b81b580ba04ce55c88