[INFO] crate queen-io 0.4.6 is already in cache
[INFO] checking queen-io-0.4.6 against master#73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de for pr-68325
[INFO] extracting crate queen-io 0.4.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate queen-io 0.4.6 on toolchain 73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate queen-io 0.4.6
[INFO] finished tweaking crates.io crate queen-io 0.4.6
[INFO] tweaked toml for crates.io crate queen-io 0.4.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 294d62c7cb25e53f4fdfbc9ab8e5a44fef6897c73e6cb9d9985a792b02bdf967
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "294d62c7cb25e53f4fdfbc9ab8e5a44fef6897c73e6cb9d9985a792b02bdf967"`
[INFO] [stderr]    Compiling queen-io v0.4.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/plus/channel.rs:292:49
[INFO] [stderr]     |
[INFO] [stderr] 292 |             SendError::Io(ref io_err) => io_err.description(),
[INFO] [stderr]     |                                                 ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/plus/channel.rs:301:52
[INFO] [stderr]     |
[INFO] [stderr] 301 |             TrySendError::Io(ref io_err) => io_err.description(),
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/plus/channel.rs:292:49
[INFO] [stderr]     |
[INFO] [stderr] 292 |             SendError::Io(ref io_err) => io_err.description(),
[INFO] [stderr]     |                                                 ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/plus/channel.rs:301:52
[INFO] [stderr]     |
[INFO] [stderr] 301 |             TrySendError::Io(ref io_err) => io_err.description(),
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `"docker" "inspect" "294d62c7cb25e53f4fdfbc9ab8e5a44fef6897c73e6cb9d9985a792b02bdf967"`
[INFO] running `"docker" "rm" "-f" "294d62c7cb25e53f4fdfbc9ab8e5a44fef6897c73e6cb9d9985a792b02bdf967"`
[INFO] [stdout] 294d62c7cb25e53f4fdfbc9ab8e5a44fef6897c73e6cb9d9985a792b02bdf967