[INFO] fetching crate libheif-rs 0.7.0...
[INFO] checking libheif-rs-0.7.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate libheif-rs 0.7.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate libheif-rs 0.7.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libheif-rs 0.7.0
[INFO] finished tweaking crates.io crate libheif-rs 0.7.0
[INFO] tweaked toml for crates.io crate libheif-rs 0.7.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] d3e8d9af3ea37ee3d579ee72625317dedfc9d2c95e84c8b00d25290b2b6a2c03
[INFO] running `"docker" "start" "-a" "d3e8d9af3ea37ee3d579ee72625317dedfc9d2c95e84c8b00d25290b2b6a2c03"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libheif-sys v1.5.0
[INFO] [stderr]     Checking kamadak-exif v0.3.1
[INFO] [stderr]     Checking num-bigint v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking libheif-rs v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/context.rs:127:56
[INFO] [stderr]     |
[INFO] [stderr] 127 |         let mut c_encoder = MaybeUninit::<_>::uninit();;
[INFO] [stderr]     |                                                        ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/context.rs:127:56
[INFO] [stderr]     |
[INFO] [stderr] 127 |         let mut c_encoder = MaybeUninit::<_>::uninit();;
[INFO] [stderr]     |                                                        ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `exif`
[INFO] [stderr]    --> tests/read_test.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |     let exif: Vec<u8> = handle.metadata(meta_ids[0])?;
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_exif`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.89s
[INFO] running `"docker" "inspect" "d3e8d9af3ea37ee3d579ee72625317dedfc9d2c95e84c8b00d25290b2b6a2c03"`
[INFO] running `"docker" "rm" "-f" "d3e8d9af3ea37ee3d579ee72625317dedfc9d2c95e84c8b00d25290b2b6a2c03"`
[INFO] [stdout] d3e8d9af3ea37ee3d579ee72625317dedfc9d2c95e84c8b00d25290b2b6a2c03