[INFO] updating cached repository https://github.com/kojole/benchmark-concurrent-io
[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] 5670befbccd0f25b281482f1fa0009f0e321a18a
[INFO] checking kojole/benchmark-concurrent-io against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkojole%2Fbenchmark-concurrent-io" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kojole/benchmark-concurrent-io 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/kojole/benchmark-concurrent-io
[INFO] finished tweaking git repo https://github.com/kojole/benchmark-concurrent-io
[INFO] tweaked toml for git repo https://github.com/kojole/benchmark-concurrent-io written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/kojole/benchmark-concurrent-io 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 516486e3ea9a9c1f992d56645114c8c3067d116abef35b0ff4d60f98c50a4b8f
[INFO] running `"docker" "start" "-a" "516486e3ea9a9c1f992d56645114c8c3067d116abef35b0ff4d60f98c50a4b8f"`
[INFO] [stderr]     Checking docopt v1.0.0
[INFO] [stderr]     Checking conio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]  --> src/segment.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::mem::{transmute, 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]   --> src/segment.rs:56:26
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut p: *mut u8 = uninitialized();
[INFO] [stderr]    |                          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]  --> src/segment.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::mem::{transmute, 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]   --> src/segment.rs:56:26
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut p: *mut u8 = uninitialized();
[INFO] [stderr]    |                          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.71s
[INFO] running `"docker" "inspect" "516486e3ea9a9c1f992d56645114c8c3067d116abef35b0ff4d60f98c50a4b8f"`
[INFO] running `"docker" "rm" "-f" "516486e3ea9a9c1f992d56645114c8c3067d116abef35b0ff4d60f98c50a4b8f"`
[INFO] [stdout] 516486e3ea9a9c1f992d56645114c8c3067d116abef35b0ff4d60f98c50a4b8f