[INFO] updating cached repository https://github.com/lovasoa/dezoomify-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/lovasoa/dezoomify-rs
[INFO] [stderr]  * [new branch]      encoders   -> encoders
[INFO] [stderr]    d1a400f..0642480  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 06424805d4459646d04def3e73408b0585799fb1
[INFO] checking lovasoa/dezoomify-rs against master#7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3 for pr-71873
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovasoa%2Fdezoomify-rs" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lovasoa/dezoomify-rs on toolchain 7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "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-7/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" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0b08bf5a578a86f343872a8a023e0f5a873499608d49ce9054bdf62521eabedf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "0b08bf5a578a86f343872a8a023e0f5a873499608d49ce9054bdf62521eabedf"`
[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: function is never used: `test_image`
[INFO] [stderr]   --> benches/../tests/local_dezoomifying.rs:39:14
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub async fn test_image(input: &str, expected: &str) -> Result<(), ZoomError> {
[INFO] [stderr]    |              ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `assert_images_equal`
[INFO] [stderr]   --> benches/../tests/local_dezoomifying.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn assert_images_equal(a: DynamicImage, b: DynamicImage) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 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 3m 06s
[INFO] running `"docker" "inspect" "0b08bf5a578a86f343872a8a023e0f5a873499608d49ce9054bdf62521eabedf"`
[INFO] running `"docker" "rm" "-f" "0b08bf5a578a86f343872a8a023e0f5a873499608d49ce9054bdf62521eabedf"`
[INFO] [stdout] 0b08bf5a578a86f343872a8a023e0f5a873499608d49ce9054bdf62521eabedf