[INFO] cloning repository https://github.com/lovasoa/dezoomify-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lovasoa/dezoomify-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovasoa%2Fdezoomify-rs"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovasoa%2Fdezoomify-rs'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0cc1fde7a524c896c20e9cd12be0bc63d788ee91
[INFO] checking lovasoa/dezoomify-rs against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovasoa%2Fdezoomify-rs" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lovasoa/dezoomify-rs on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lovasoa/dezoomify-rs
[INFO] finished tweaking git repo https://github.com/lovasoa/dezoomify-rs
[INFO] tweaked toml for git repo https://github.com/lovasoa/dezoomify-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/lovasoa/dezoomify-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+914adf04af1c1a984707f778da3d04590c03d144" "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] 5593c73fea7221dc3cfc12f69e007a634c3ed0f5484205dc411aee047d5994cf
[INFO] running `"docker" "start" "-a" "5593c73fea7221dc3cfc12f69e007a634c3ed0f5484205dc411aee047d5994cf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
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[INFO] [stderr]     Checking dezoomify-rs v1.8.9 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/encoder/tile_buffer.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         std::mem::replace(self, next_state);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/generic/dichotomy_2d.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             std::mem::replace(self, next);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/pff/mod.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 std::mem::replace(self, PFF::WithHeader(header_info));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/encoder/tile_buffer.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         std::mem::replace(self, next_state);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/generic/dichotomy_2d.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             std::mem::replace(self, next);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/pff/mod.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 std::mem::replace(self, PFF::WithHeader(header_info));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 40s
[INFO] running `"docker" "inspect" "5593c73fea7221dc3cfc12f69e007a634c3ed0f5484205dc411aee047d5994cf"`
[INFO] running `"docker" "rm" "-f" "5593c73fea7221dc3cfc12f69e007a634c3ed0f5484205dc411aee047d5994cf"`
[INFO] [stdout] 5593c73fea7221dc3cfc12f69e007a634c3ed0f5484205dc411aee047d5994cf