[INFO] fetching crate wasmedge_storage_interface 0.2.0...
[INFO] checking wasmedge_storage_interface-0.2.0 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate wasmedge_storage_interface 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate wasmedge_storage_interface 0.2.0 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmedge_storage_interface 0.2.0
[INFO] finished tweaking crates.io crate wasmedge_storage_interface 0.2.0
[INFO] tweaked toml for crates.io crate wasmedge_storage_interface 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serialize_deserialize_u8_i32 v0.1.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7d62dfa80af38d90470632409f92895368d9ee2ffa53d39e5a8cfdedebbdaf2
[INFO] running `Command { std: "docker" "start" "-a" "f7d62dfa80af38d90470632409f92895368d9ee2ffa53d39e5a8cfdedebbdaf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7d62dfa80af38d90470632409f92895368d9ee2ffa53d39e5a8cfdedebbdaf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7d62dfa80af38d90470632409f92895368d9ee2ffa53d39e5a8cfdedebbdaf2", kill_on_drop: false }`
[INFO] [stdout] f7d62dfa80af38d90470632409f92895368d9ee2ffa53d39e5a8cfdedebbdaf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e7be0d6e096a85720054f9a9811fe03da5371fae896f6b95a559ac6a3be378b
[INFO] running `Command { std: "docker" "start" "-a" "3e7be0d6e096a85720054f9a9811fe03da5371fae896f6b95a559ac6a3be378b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking serialize_deserialize_u8_i32 v0.1.34
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking wasmedge_storage_interface v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]   --> src/lib.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]   --> src/lib.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 152 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:179:21
[INFO] [stdout]     |
[INFO] [stdout] 179 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:206:21
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:233:21
[INFO] [stdout]     |
[INFO] [stdout] 233 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:260:21
[INFO] [stdout]     |
[INFO] [stdout] 260 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:291:21
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:313:21
[INFO] [stdout]     |
[INFO] [stdout] 313 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_c_string_2`
[INFO] [stdout]    --> src/lib.rs:445:17
[INFO] [stdout]     |
[INFO] [stdout] 445 |             let var_c_string_2: CString = unsafe { CString::from_raw(ptr_c_string) };
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_c_string_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_c_string_2`
[INFO] [stdout]    --> src/lib.rs:473:17
[INFO] [stdout]     |
[INFO] [stdout] 473 |             let var_c_string_2: CString = unsafe { CString::from_raw(ptr_c_string) };
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_c_string_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]   --> src/lib.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]   --> src/lib.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 152 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:179:21
[INFO] [stdout]     |
[INFO] [stdout] 179 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:206:21
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:233:21
[INFO] [stdout]     |
[INFO] [stdout] 233 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:260:21
[INFO] [stdout]     |
[INFO] [stdout] 260 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:291:21
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_pointer_released`
[INFO] [stdout]    --> src/lib.rs:313:21
[INFO] [stdout]     |
[INFO] [stdout] 313 |                 let var_pointer_released = CString::from_raw(ptr_c_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_pointer_released`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_c_string_2`
[INFO] [stdout]    --> src/lib.rs:445:17
[INFO] [stdout]     |
[INFO] [stdout] 445 |             let var_c_string_2: CString = unsafe { CString::from_raw(ptr_c_string) };
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_c_string_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_c_string_2`
[INFO] [stdout]    --> src/lib.rs:473:17
[INFO] [stdout]     |
[INFO] [stdout] 473 |             let var_c_string_2: CString = unsafe { CString::from_raw(ptr_c_string) };
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_c_string_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.00s
[INFO] running `Command { std: "docker" "inspect" "3e7be0d6e096a85720054f9a9811fe03da5371fae896f6b95a559ac6a3be378b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7be0d6e096a85720054f9a9811fe03da5371fae896f6b95a559ac6a3be378b", kill_on_drop: false }`
[INFO] [stdout] 3e7be0d6e096a85720054f9a9811fe03da5371fae896f6b95a559ac6a3be378b