[INFO] fetching crate msql-srv 0.9.0...
[INFO] checking msql-srv-0.9.0 against master#7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772 for pr-73084-1
[INFO] extracting crate msql-srv 0.9.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate msql-srv 0.9.0 on toolchain 7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2/source/Cargo.toml
[INFO] crate crates.io crate msql-srv 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f884bc0009b672b18db6d472dfccccd06e62d934a8b69ff8f60978d61e0cd6e0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f884bc0009b672b18db6d472dfccccd06e62d934a8b69ff8f60978d61e0cd6e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f884bc0009b672b18db6d472dfccccd06e62d934a8b69ff8f60978d61e0cd6e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f884bc0009b672b18db6d472dfccccd06e62d934a8b69ff8f60978d61e0cd6e0", kill_on_drop: false }`
[INFO] [stdout] f884bc0009b672b18db6d472dfccccd06e62d934a8b69ff8f60978d61e0cd6e0
[INFO] running `Command { std: "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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9a0aecb2e59325ea72b426021ac120402df467f9f2e4ee005aff081a45de68bd
[INFO] running `Command { std: "docker" "start" "-a" "9a0aecb2e59325ea72b426021ac120402df467f9f2e4ee005aff081a45de68bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
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[INFO] [stderr]    Compiling proc-macro2 v1.0.13
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[INFO] [stderr]    Compiling synstructure v0.12.3
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[INFO] [stderr]    Compiling failure_derive v0.1.8
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[INFO] [stderr]     Checking mysql_common v0.22.0
[INFO] [stderr]     Checking msql-srv v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/packet.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             mem::replace(&mut self.1, v);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/packet.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             mem::replace(&mut self.1, v);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "9a0aecb2e59325ea72b426021ac120402df467f9f2e4ee005aff081a45de68bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a0aecb2e59325ea72b426021ac120402df467f9f2e4ee005aff081a45de68bd", kill_on_drop: false }`
[INFO] [stdout] 9a0aecb2e59325ea72b426021ac120402df467f9f2e4ee005aff081a45de68bd