[INFO] fetching crate rust_storage_interface_library 0.1.8...
[INFO] checking rust_storage_interface_library-0.1.8 against master#d939f708d960161d23b964309ba68ff207fc0ead for pr-70087
[INFO] extracting crate rust_storage_interface_library 0.1.8 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rust_storage_interface_library 0.1.8 on toolchain d939f708d960161d23b964309ba68ff207fc0ead
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rust_storage_interface_library 0.1.8
[INFO] finished tweaking crates.io crate rust_storage_interface_library 0.1.8
[INFO] tweaked toml for crates.io crate rust_storage_interface_library 0.1.8 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+d939f708d960161d23b964309ba68ff207fc0ead" "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] eb8e8f7be32b9798dab187452cbb1237cf42a18a48d70b9cdada5326fa81c83d
[INFO] running `"docker" "start" "-a" "eb8e8f7be32b9798dab187452cbb1237cf42a18a48d70b9cdada5326fa81c83d"`
[INFO] [stderr]     Checking rust_storage_interface_library v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `raw_string_length`
[INFO] [stderr]    --> src/lib.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let raw_string_length: i32 = raw_string.chars().count().try_into().unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_raw_string_length`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_single_i32`
[INFO] [stderr]   --> src/lib.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn load_single_i32(_key: i64) -> i32 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_single_i64`
[INFO] [stderr]   --> src/lib.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn load_single_i64(_key: i64) -> i64 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_string`
[INFO] [stderr]   --> src/lib.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn load_string(_key: i64) -> String {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_time`
[INFO] [stderr]   --> src/lib.rs:98:12
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn get_time() -> Result<u64, String> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_fixed_length_random_number`
[INFO] [stderr]    --> src/lib.rs:109:12
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn create_fixed_length_random_number(
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_unique_key`
[INFO] [stderr]    --> src/lib.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn create_unique_key() -> Result<i64, String> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `store_single_i32`
[INFO] [stderr]    --> src/lib.rs:151:12
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn store_single_i32(_value: i32) -> i64 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `store_single_i64`
[INFO] [stderr]    --> src/lib.rs:166:12
[INFO] [stderr]     |
[INFO] [stderr] 166 |     pub fn store_single_i64(_value: i64) -> i64 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `store_string`
[INFO] [stderr]    --> src/lib.rs:174:12
[INFO] [stderr]     |
[INFO] [stderr] 174 |     pub fn store_string(_value: &str) -> i64 {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `raw_string_length`
[INFO] [stderr]    --> src/lib.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let raw_string_length: i32 = raw_string.chars().count().try_into().unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_raw_string_length`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_single_i32`
[INFO] [stderr]   --> src/lib.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn load_single_i32(_key: i64) -> i32 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_single_i64`
[INFO] [stderr]   --> src/lib.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn load_single_i64(_key: i64) -> i64 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_string`
[INFO] [stderr]   --> src/lib.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn load_string(_key: i64) -> String {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `store_single_i32`
[INFO] [stderr]    --> src/lib.rs:151:12
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn store_single_i32(_value: i32) -> i64 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `store_single_i64`
[INFO] [stderr]    --> src/lib.rs:166:12
[INFO] [stderr]     |
[INFO] [stderr] 166 |     pub fn store_single_i64(_value: i64) -> i64 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `store_string`
[INFO] [stderr]    --> src/lib.rs:174:12
[INFO] [stderr]     |
[INFO] [stderr] 174 |     pub fn store_string(_value: &str) -> i64 {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "eb8e8f7be32b9798dab187452cbb1237cf42a18a48d70b9cdada5326fa81c83d"`
[INFO] running `"docker" "rm" "-f" "eb8e8f7be32b9798dab187452cbb1237cf42a18a48d70b9cdada5326fa81c83d"`
[INFO] [stdout] eb8e8f7be32b9798dab187452cbb1237cf42a18a48d70b9cdada5326fa81c83d