[INFO] updating cached repository totechite/rust-snappy-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/totechite/rust-snappy-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/totechite/rust-snappy-example" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/totechite/rust-snappy-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/totechite/rust-snappy-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/totechite/rust-snappy-example" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/totechite/rust-snappy-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/totechite/rust-snappy-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 70f145567badc99eb6fd67dbfb3765d4fcdcba05
[INFO] sha for GitHub repo totechite/rust-snappy-example: 70f145567badc99eb6fd67dbfb3765d4fcdcba05
[INFO] validating manifest of totechite/rust-snappy-example on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of totechite/rust-snappy-example on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing totechite/rust-snappy-example
[INFO] finished frobbing totechite/rust-snappy-example
[INFO] frobbed toml for totechite/rust-snappy-example written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/totechite/rust-snappy-example/Cargo.toml
[INFO] started frobbing totechite/rust-snappy-example
[INFO] finished frobbing totechite/rust-snappy-example
[INFO] frobbed toml for totechite/rust-snappy-example written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/totechite/rust-snappy-example/Cargo.toml
[INFO] crate totechite/rust-snappy-example already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking totechite/rust-snappy-example against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/totechite/rust-snappy-example:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c09f9d5c9202561c8c80510fe29557ba4f75209ff88aa18b67715691ed5b0e69
[INFO] running `"docker" "start" "-a" "c09f9d5c9202561c8c80510fe29557ba4f75209ff88aa18b67715691ed5b0e69"`
[INFO] [stderr]    Compiling practice_rust_ffi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: foreign function is never used: `snappy_compress`
[INFO] [stderr]   --> src/bind_snappy.rs:7:5
[INFO] [stderr]    |
[INFO] [stderr] 7  | /     fn snappy_compress(input: *const u8,
[INFO] [stderr] 8  | |                        input_length: size_t,
[INFO] [stderr] 9  | |                        compressed: *mut u8,
[INFO] [stderr] 10 | |                        compressed_length: *mut size_t) -> c_int;
[INFO] [stderr]    | |________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `snappy_uncompress`
[INFO] [stderr]   --> src/bind_snappy.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | /     fn snappy_uncompress(compressed: *const u8,
[INFO] [stderr] 12 | |                          compressed_length: size_t,
[INFO] [stderr] 13 | |                          uncompressed: *mut u8,
[INFO] [stderr] 14 | |                          uncompressed_length: *mut size_t) -> c_int;
[INFO] [stderr]    | |____________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `snappy_uncompressed_length`
[INFO] [stderr]   --> src/bind_snappy.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     fn snappy_uncompressed_length(compressed: *const u8,
[INFO] [stderr] 17 | |                                   compressed_length: size_t,
[INFO] [stderr] 18 | |                                   result: *mut size_t) -> c_int;
[INFO] [stderr]    | |________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `snappy_validate_compressed_buffer`
[INFO] [stderr]   --> src/bind_snappy.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     fn snappy_validate_compressed_buffer(compressed: *const u8,
[INFO] [stderr] 20 | |                                          compressed_length: size_t) -> c_int;
[INFO] [stderr]    | |_____________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compress`
[INFO] [stderr]   --> src/bind_snappy.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn compress(src: &[u8]) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `uncompress`
[INFO] [stderr]   --> src/bind_snappy.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn uncompress(src: &[u8]) -> Option<Vec<u8>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `validate_compressed_buffer`
[INFO] [stderr]   --> src/bind_snappy.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn validate_compressed_buffer(src: &[u8]) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `snappy_compress`
[INFO] [stderr]   --> src/bind_snappy.rs:7:5
[INFO] [stderr]    |
[INFO] [stderr] 7  | /     fn snappy_compress(input: *const u8,
[INFO] [stderr] 8  | |                        input_length: size_t,
[INFO] [stderr] 9  | |                        compressed: *mut u8,
[INFO] [stderr] 10 | |                        compressed_length: *mut size_t) -> c_int;
[INFO] [stderr]    | |________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `snappy_uncompress`
[INFO] [stderr]   --> src/bind_snappy.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | /     fn snappy_uncompress(compressed: *const u8,
[INFO] [stderr] 12 | |                          compressed_length: size_t,
[INFO] [stderr] 13 | |                          uncompressed: *mut u8,
[INFO] [stderr] 14 | |                          uncompressed_length: *mut size_t) -> c_int;
[INFO] [stderr]    | |____________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `snappy_uncompressed_length`
[INFO] [stderr]   --> src/bind_snappy.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     fn snappy_uncompressed_length(compressed: *const u8,
[INFO] [stderr] 17 | |                                   compressed_length: size_t,
[INFO] [stderr] 18 | |                                   result: *mut size_t) -> c_int;
[INFO] [stderr]    | |________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `snappy_validate_compressed_buffer`
[INFO] [stderr]   --> src/bind_snappy.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     fn snappy_validate_compressed_buffer(compressed: *const u8,
[INFO] [stderr] 20 | |                                          compressed_length: size_t) -> c_int;
[INFO] [stderr]    | |_____________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compress`
[INFO] [stderr]   --> src/bind_snappy.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn compress(src: &[u8]) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `uncompress`
[INFO] [stderr]   --> src/bind_snappy.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn uncompress(src: &[u8]) -> Option<Vec<u8>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `validate_compressed_buffer`
[INFO] [stderr]   --> src/bind_snappy.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn validate_compressed_buffer(src: &[u8]) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "c09f9d5c9202561c8c80510fe29557ba4f75209ff88aa18b67715691ed5b0e69"`
[INFO] running `"docker" "rm" "-f" "c09f9d5c9202561c8c80510fe29557ba4f75209ff88aa18b67715691ed5b0e69"`
[INFO] [stdout] c09f9d5c9202561c8c80510fe29557ba4f75209ff88aa18b67715691ed5b0e69