[INFO] fetching crate spng-sys 0.1.0-alpha.4...
[INFO] checking spng-sys-0.1.0-alpha.4 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate spng-sys 0.1.0-alpha.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate spng-sys 0.1.0-alpha.4 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate spng-sys 0.1.0-alpha.4
[INFO] finished tweaking crates.io crate spng-sys 0.1.0-alpha.4
[INFO] tweaked toml for crates.io crate spng-sys 0.1.0-alpha.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+74e80468347471779be6060d8d7d6d04e98e467f" "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] 74cf2a780eae14e94c276467b6712bebd311631420b297c79fcf268057f01c34
[INFO] running `"docker" "start" "-a" "74cf2a780eae14e94c276467b6712bebd311631420b297c79fcf268057f01c34"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling spng-sys v0.1.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: libspng/spng.c: In function 'spng__inflate_stream':
[INFO] [stderr] warning: libspng/spng.c:700:14: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare]
[INFO] [stderr] warning:   700 |     if(extra > max) return SPNG_EMEM;
[INFO] [stderr] warning:       |              ^
[INFO] [stderr] warning: libspng/spng.c:772:13: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
[INFO] [stderr] warning:   772 |     if(size < extra) goto mem;
[INFO] [stderr] warning:       |             ^
[INFO] [stderr] warning: libspng/spng.c: In function 'spng_decode_image':
[INFO] [stderr] warning: libspng/spng.c:2703:20: warning: comparison of integer expressions of different signedness: 'int' and 'uint32_t' {aka 'unsigned int'} [-Wsign-compare]
[INFO] [stderr] warning:  2703 |         for(i=0; i < lut_entries; i++)
[INFO] [stderr] warning:       |                    ^
[INFO] [stderr] warning: libspng/spng.c:2785:34: warning: comparison of integer expressions of different signedness: 'int' and 'uint32_t' {aka 'unsigned int'} [-Wsign-compare]
[INFO] [stderr] warning:  2785 |             if(f.apply_trns && i < ctx->trns.n_type3_entries)
[INFO] [stderr] warning:       |                                  ^
[INFO] [stderr] warning: libspng/spng.c:2842:23: warning: comparison of integer expressions of different signedness: 'uint32_t' {aka 'unsigned int'} and 'int' [-Wsign-compare]
[INFO] [stderr] warning:  2842 |     for(i=ri->pass; i <= ctx->last_pass; i++)
[INFO] [stderr] warning:       |                       ^~
[INFO] [stderr] warning: libspng/spng.c: In function 'buffer_read_fn':
[INFO] [stderr] warning: libspng/spng.c:2968:48: warning: unused parameter 'user' [-Wunused-parameter]
[INFO] [stderr] warning:  2968 | static int buffer_read_fn(spng_ctx *ctx, void *user, void *data, size_t n)
[INFO] [stderr] warning:       |                                          ~~~~~~^~~~
[INFO] [stderr] warning: libspng/spng.c:2968:60: warning: unused parameter 'data' [-Wunused-parameter]
[INFO] [stderr] warning:  2968 | static int buffer_read_fn(spng_ctx *ctx, void *user, void *data, size_t n)
[INFO] [stderr] warning:       |                                                      ~~~~~~^~~~
[INFO] [stderr] warning: libspng/spng.c: In function 'file_read_fn':
[INFO] [stderr] warning: libspng/spng.c:2980:35: warning: unused parameter 'ctx' [-Wunused-parameter]
[INFO] [stderr] warning:  2980 | static int file_read_fn(spng_ctx *ctx, void *user, void *data, size_t n)
[INFO] [stderr] warning:       |                         ~~~~~~~~~~^~~
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.83s
[INFO] running `"docker" "inspect" "74cf2a780eae14e94c276467b6712bebd311631420b297c79fcf268057f01c34"`
[INFO] running `"docker" "rm" "-f" "74cf2a780eae14e94c276467b6712bebd311631420b297c79fcf268057f01c34"`
[INFO] [stdout] 74cf2a780eae14e94c276467b6712bebd311631420b297c79fcf268057f01c34