[INFO] fetching crate msql-srv 0.9.0...
[INFO] checking msql-srv-0.9.0 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate msql-srv 0.9.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate msql-srv 0.9.0 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate msql-srv 0.9.0
[INFO] finished tweaking crates.io crate msql-srv 0.9.0
[INFO] tweaked toml for crates.io crate msql-srv 0.9.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate msql-srv 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 881960e3f2fb969787a1ab510c995426d2be72579c4e3d9d78d15c0e96090b9c
[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" "881960e3f2fb969787a1ab510c995426d2be72579c4e3d9d78d15c0e96090b9c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
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[INFO] [stderr]    Compiling mysql v18.2.0
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[INFO] [stderr]    Compiling const-random-macro v0.1.8
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[INFO] [stderr]     Checking mysql_common v0.18.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling derive_utils v0.9.1
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[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.0
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[INFO] [stderr]     Checking mysql_async v0.20.0
[INFO] [stderr]     Checking mysql_common v0.22.0
[INFO] [stderr]     Checking msql-srv v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/packet.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             mem::replace(&mut self.1, v);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/packet.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             mem::replace(&mut self.1, v);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 14s
[INFO] running `"docker" "inspect" "881960e3f2fb969787a1ab510c995426d2be72579c4e3d9d78d15c0e96090b9c"`
[INFO] running `"docker" "rm" "-f" "881960e3f2fb969787a1ab510c995426d2be72579c4e3d9d78d15c0e96090b9c"`
[INFO] [stdout] 881960e3f2fb969787a1ab510c995426d2be72579c4e3d9d78d15c0e96090b9c